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Be Enlightened...The "Brockton Operation"

"Thomas Edison Tested Over 3000 Filaments Before He Came Up With His Version of a Practical Light Bulb. As Shocking As It May Seem, This Was Not His Greatest Invention."

"The miracle of the millennium was providing light and power to the masses. The first to envision, design and construct a successful model for achieving this extremely challenging goal was Thomas Alva Edison"

from coal to kilowatts

"There is no question that Edison deserves the lion's share of credit for lighting up the world. However, this amazing accomplishment was far less related to his particular discovery of an incandescent bulb than to his creation of the first genuinely safe and economically viable system for generating and distributing light and power - worldwide.




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The Details Associated With Edison's Singular Technological Breakthrough in Brockton, Massachusetts

Registered and Copyrighted © by Gerald Beals Feb. 11, 1997 - All Rights Reserved. WARNING: All text and images on this site are registered and  copyrighted by the author . Accordingly, they are not to be printed for distribution or electronically reproduced in any form without his express written permission..
three wire system
 Satisfied with the technology inherent in his landmark standardized, 3-wire, underground  non-tapered central feeder system in Brockton, Edison gradually shifted his primary focus towards other areas of invention....


Unfortunately, it has been correctly noted that the time and energy he had been expending in perfecting it dissuaded him from developing his coinciding discovery of ethereal electricity - a fundamental electronic concept others ended up capitalizing upon in effecting radio transmission.

In the meantime, he continued to over cling to his - not entirely flawed - argument that, until it was absolutely proven otherwise, his low tension form of DC current, "which could be handled by a child without causing him any harm," was more humane than AC current. But that is another - often inaccurately told - story, that would be better addressed later.

It should be kept clearly in mind that the mitigating synchretic features first introduced in Brockton's unpretentious, ingenious electrical power generation and distribution system represent the landmark consummation of Edison's four year quest to electrify the world. Completed at the very acme of his career, they not only evince his amazing tenacity in bringing an unbelievably difficult projects to completion, they also represent the very cornerstone of modern technology,

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New England "the Silicon Valley of the 19th Century" was the home of America's Industrial Revolution. Although rarely remembered and even more rarely understood, one of the most important events in technological history took place from 1882 through 1885 in this tiny Northeastern corner of the country.....

    The tremendous affect electricity has had upon the natural environment and mankind's "built" environment can not be accurately assessed by limiting the focus to such amazing, but highly specialized, inventions as the light bulb, telephone, phonograph, generator, motor, and motion picture camera. All of which were at least partly invented by Thomas Edison....

Evaluating this broad scientific domain and the first integrated electrical generation and distribution system that could safely provide cheap illumination and power for everyone is best initiated by becoming familiar with Edison's seminal work in developing both isolated (on-site) and centralized power plants....

Throughout most of 1882, Edison was constantly wrestling with the complex challenge of transcending the experimental stage of the centralized production and distribution of commercial electricity, ever hoping to "perfectly and completely" harness it and make it a benefit to all.

Finally, in the Fall of that year, he came up with the first grid capable of truly achieving that end. Contrary to popular perception, he did not take this last major step in New York City. Its consummateimplementationoccurred11 months later in the progressive little shoe-making community of Brockton, Massachusetts.

Even though this Brockton prototype initially used less power than would now be required to light the bulbs on a modern Christmas tree, its inherently overarching technology stunned the handful of scientists to first witness it, especially England's Samuel L. Insull.
Until now, he and other critics - such as the great Lord Kelvin - had been continuously pointing out the limitations of Edison's seemingly insurmountable goal of economically lighting and powering the world with electricity, vs. gas.

But Insull now became one of the first to recognize that this was entirely possible because Brockton's three-wire advantages were destined to eventually be combined into a "web" of such stations and sub stations....

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Unfortunately just prior to this time, a number of 19th Century cohorts convinced Edison and his supporters to downplay the Edison Corporation's success in Brockton. Their primary rationale was to maintain and enhance media focus upon his "success" in the great metropolis of New York City.

And even though Edison had initially expressed tremendous pride in his breakaway accomplishments in Brockton, calling the operation "My first showcase system"  and "My first complete system," he fully concurred with the practicality of placing as positive a spin as possible on his coinciding work New York.

Accordingly, the press became so obsessed with alternately touting and critiquing the sensational public relations releases coming out of Manhattan, the majority of them ignored - or perhaps never grasped - the equally great significance of what was transpiring in Brockton....

Also contributing to he blurring of the historical record, all of the Edison Illuminating Light Corporation's engineering plans and correspondence relating to Edison's Brockton venture were destroyed in a mysterious Brockton fire...

Summing up, the fascinating history associated with Brockton’s critically significant involvement in the techno/cultural perfection of widely generalized public electrification has been pretty much expunged.

Even today, very few historians are aware of the fact that it was this effort that finally eclipsed the major stumbling blocks Edison had encountered in his centralized demonstration model in Paris and his commercial centralized systems Milan, London and New York.

Fortunately, numerous, heretofore remote, details relating to this history were recorded for posterity, not only by local citizens but by some of the world's most sophisticated scientists of the time. Specifically, the writer has uncovered several accounts describing its potential for globalizing the use of of electricity. Accordingly, the following is presented in the hope of adequately addressing the above "historical  oversight."


Excerpted from Chapter 3 of "The Development Of Early Power Plants Throughout The World" 

With special permission from the author
Copyrighted © and registered by Gerald Beals 2/11/97

All Rights Reserved

1882 - 1883  "I never perfected an invention that I did not think about in terms of the service it might give others..." Thomas Edison

The impetus that led to Edison's work in Brockton initially emanated from the highly significant technical and economic problems he had long been experiencing with his 2-wire stations in In Europe. It also evolved out of some of the menacing problems he continued to have with similar - but also "far from complete" - facilities he was trying toperfect in London, England, Appleton, Wisconsin, Sunbury, Pennsylvania and  New York City.

Even though the mass-produced "free"  light bulbs Edison felt obliged to provide his earliest customers at this time had attained a relatively high level of efficiency and durability, the relatively unsafe, crude and inflexible means by which current was still being produced and distributed left a very great deal to be desired. More than occasionally, for example, wire resistance, fuse problems and accompanying voltage drops in the New York facility - which had to be very carefully monitored and constantly "tweaked" by electricians - were resulting in "black days." Meanwhile, as both customers and workers were sometimes being injured - if not actually killed - by flaws in the New York system, his light bulbs - vs. the above systemic imperfections relating to the economic and safe generation and distribution of electricity - were being  incorrectly perceived as the primary culprit....

It should be noted here, that an unfortunate personal shortcoming of this period in Edison's career was that, even though he clearly knew better, he decided to allow his Edison Construction Company to promote his still far from perfect New York plant as an entirely viable model for world-wide commercial use. But even with its truly marvelous "Jumbo" generator, underground wiring, etc., it possessed most of the same pretensions inherent in all of his previous 2-wire feeder  operations..

Significantly, until Edison designed his Brockton, Massachusetts operation, all of his previous  plants were fundamentally experimental - and incapable of transmitting economically viable quantities of electrical power for more than a couple of thousand feet from their respective generating stations. Moreover, he was fully aware that none of them were then capable of servicing the unique configuration patterns of the vast majority of the communities that were then rapidly emerging throughout the modern world.
In fact, the challenge of perfecting a centralized system that would bepractically anduniversally satisfactory to all of humanityat this time was so great that some of Edison's sophisticated economic backers tried to convince him to maintain his upon enhancing his already successful isolated (on-site) 3-wire operations....

Fortunately, this incertitude was marvelously eradicated when the irrepressible inventor came up with the design for his first standardized, centralized 3-wirefeeder system - in Brockton.

Unfortunately, while Edison's development of his Brockton fait accompli were of heroic proportion, it was during this period in his life that he was being hammered at every turn by fiercest types of critics and cutthroat competitors imagineable. Also during this most prolific period of his career, he was constantly plagued by the illness and impending death of his beloved wife.

Meanwhile, as reporters from prominent newspapers - including the New York Times - were gleefully lampooning him and eminent scientists were still questioning his ability to come up with a truly viable substitute for the gas lighting industry, the shrewd owners of the latter organizations were constantly trying to find ways to divert, undermine, and, or, co-opt him.
But while most men would have been rattled by these circumstances, this implacable young genius remained sharply focused upon his short term goals and his long range mission. A related quote from Volume 134 of Edison's 3,400 diaries reveals the extraordinary intensity of his commitment in the following terse manner: "Object, ....to effect imitation of all done by gas, so as to replace lighting by gas by lighting by electricity...."
Passionately dedicated to capturing the world market for electricity, it is not surprising that Edison remained doggedly obsessed with making a popular success out of his humongous 2-wire experiment in the Pearl Street section of lower New York City.

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(EDITOR'S NOTE:) Most likely, it would not have greatly surprised Edison to learn that with more than a ten trillion kilowatts per year of current output, electricity is the most consumed commercial product in existence. In the U.S. alone, for example, there are presently over 10, 000 central power plants producing over a quarter of a trillion dollars worth of electricity per year. )

At any rate, in July of 1882, a few months before Edison officially opened his far from complete "Manhattan leviathan" - in what was then the worst slum section in town - he was suddenly confronted by the most competitivechallengeof his career....
Similar to what frequently happens to rivals in the current rapidly changing world of electronics, a British scientist/educator by the name of Dr. Joseph Hopkinson announced he had discovered a fundamentally new and better method of "making and delivering" electricity. It turned out that he had been hired to make a formal evaluation of Edison's first attempt to establish a commercialfacility in London, but had also been covertly doing a lot of "fooling around" with it. (Editor's note: A good deal of Edison's work in his famous New York plant was based upon the commercial theories and technology he had worked out in this preceding London facility.)

The essence of  Hopkins’ claim was that his overarching 3-wire concept represented a dramatic improvement over the Edison system of parallel 2-wire feeder circuitry.... Specifically, he claimed that, along with Edison's state-of-the-art feeders and transformers, such multiple wiring could safely deliver both low, andrelatively high, voltage to 16 times more area than any of Edison's existing systems He also guaranteed it would eliminate over 60% of the copper wire that was then being "wasted" in all such facilities, producing much lower overhead in  running a centralized plant.

While Hopkins' former claim, may have been the most astonishing and threatening, Edison and his cohorts did not take the latter allegation lightly. At the time, the United States was still years away from developing its own copper mines and a "cabal" of French speculators was seriously threatening to corner the world's copper market.

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Meanwhile, Germany's great inventor, Woerner Seimen's, was not only tinkering with his own version of a safe, commercial three-wire system, he was also working on developing an "artificial" method of inexpensively producing copper out of chemical solutions....

Making a long story very short, Edison now forged one of the sweetest deals in history when he co-opted Hopkins 3-wire technology for himself and the Edison Illuminating Light Corporation, and combined it with the latest in feeder and transformer technology....

Interestingly, even though this shrewd acquisition would prevent his formerly "wildly ambitious" goal of electrifying the world from being brought to fruition by Englishmen, he was forced to waver on employing it in New York. One of the reasons for this was that his beleaguered supporters and crews had already installed over 60 tons of the "old" type of 2-wire wiring (or 90% of the planned total of 70,000 feet) beneath the streets of this city. Another factor was that his experiments in validating three-wire technology still needed a good deal of "practical perfecting."

The main reason for his equivocation, however, was that - even though he realized his "copper-bound Manhattan behemoth" was already outmoded by 3-wire feeder and transformer technology - Edison's chief investors were in no mood to spend any more money or waste any more time in completely reconstructing this seminal operation.

So as gas and arc-light industry "sharks" continued to sniff at New York's free wheeling and contentious business atmosphere - hoping to catch the scent of the upstart inventor's blood - Edison and his advisors countered by maintaining that his 2-wire operation on Pearl Street was already a "complete success."

Convinced that even limited efficacy in this important metropolis would command world-wide publicity, he specifically followed the advice of his noted public relations expert, William J. Hammer, and engendered the basically false impression that "everythingthat could possibly be accomplished in perfecting universal centralized electricity was already nearing completion in New York City."
Meanwhile, neither the press, the public, nor most of Edison's financiers (excepting the omniscient J. Pierpoint Morgan) were aware that he had committed himself to concurrently developing - elsewhere- a far more efficient and competent little standardized 3-wire underground alternative to his New York facility.
Amazingly, from late 1882 through early 1883, Edison not only exerted a  great deal of energy upon developing his 2-wire New York facility, and in patenting several significant unrelated ideas ,but in conquering the myriad of problems associated with 3-wire technology.

As for the latter concern, he specifically blended Hopkins’ revolutionary 3-wire concept with the equally dramatic breakthroughs in 3-wire feeder and transformer technology that were being concurrently achieved by his brilliant engineer/assistant, Frank Sprague.
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The remarkable outcome was the first successful network of parallel supply conductors to incorporate feeders produced the world's first genuinely "smart grid" in Brockton. Meanwhile, during this most intense and creative period of his life, Edison finally perfected the high resistance bulbs required by his combined relatively low tension (110-220) dual volt 3-wire system.

Remarkably, during this time, Edison also applied for what was - and still stands - as not only "the greatest number of electrical generation and distribution patents anyone ever produced, but the greatest number of patents of all types ever issued to any individual or corporation within a span of six months...."
Having finally completed the design of his "first perfect and entirely safe and practical" system for manufacturing and distributing electricity - and having thoroughly tested its superseding concepts in his fantastic seminal R and D lab in New Jersey - Edison now began to tailor it to meet the exact needs of the highly progressive little model city of Brockton, Massachusetts... (Editor's note: Prior to this, he had designed his first 3-wire on site system for two of the scores of shoe factories that were located Brockton: the soon-to-become world's leader in the boot and shoe making industry." Of course he soon determined that they did not work with anything near the ultimate efficiency of Brockton's coinciding centralized 3-wire plant. In fact they were only as efficient as the popular isolated 2-wire systems of the day.)

"Ruthless Exploitation"

Before proceeding, the author fully acknowledges - and indeed strongly emphasizes - that at this time in Edison's highly emotion charged life, he not only exploited what Hopkinson had been doing with centralized three-wire technology in London, but he took similar "advantage" of the expertise of many of his employees. For example, he never felt constrained to apologize for what some claim amounted to literally "stealing" the creativity of his mathematician, Francis Upton; his engineer, West Point educated Frank Sprague; the esteemed electrician, Nicola Tesla; and many others....

But before making an overly prompt and harsh judgment on the matter, the reader should take note that Edison was not acting any different from the way the majority of Corporate R & D types operate today, especially towards those whom they employ.

Moreover, during the rough and tumble laissez-faire capitalistic days of the 19th Century - which look mild in comparison to Sterling's writings about "law and disorder" in today's world of electronics - numerous jealous and (or) ravenous individuals were doing the very same sort of things to him....

In any case, by the time of the onset of his beloved wife's mortal illness, Edison's megawatt brain was being treated by the gas industry and most of his other competitors as "fair game for the picking…." For example, in 1881 and 1882, a crooked patent lawyer managed to "swindle" what amounted to over a year's worth of his critically important research....

Quite characteristically, Edison accepted this setback with aplomb. While the unsavory incident may have made him more suspicious than ever of the intentions of those around him, he always recalled it - and the fact that the rascal planned to patent more than seventy of his inventions under his own name - with far more humor than rancor. In fact, once he had determined that the thief was in terrible financial straits, that his family was destitute, and that he had probably resorted to the despicable act in order to survive, Edison dismissed all thoughts of suing the scoundrel.

Of course, there were many other young "Turks" in Edison's midst who, in one way or another, found ways to exploit him and, or, one up him.... The most famous example, of course,  centers around Tesla's and Westinghouse's noted work with bi-polar transmission, which eventually spooked Edison into overreacting relative to his alleged "sole preference" for the development of direct current....

Au contraire! Edison initially did a great deal of experimenting with AC in his earliest systems. But because he had not yet invented a transformer, he had scores of empirical reasons to be justly fearful of its potential danger to the public....

Edison's "ruthless exploitation" of the ingenious Frank Sprague, however, is different matter and an especially interesting related story. First, if Edison had not benefited from the expertise of this brilliant young engineer/mathematician at the time he was dealing with the Hopkins challenge, he would have probably not been the first to transcend the empirical stage of profit-oriented centralized electrical power on a global scale.... After all, it was Sprague's creativity in developing a system of automatically controlling the voltage in Edison's erratic 2-wire feeder methodology at this time and harmoniously incorporating it into Brockton's three-wire system that was the key factor in Edison's ultimate success in providing safe and economic centralized electricity to all.... Nevertheless - as will be detailed later - even though Sprague was one of Edison's most trusted employees, he was taking as much advantage of Edison as Edison was taking advantage of him.....

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In any case, on January 30, 1883, Edison formally signed the historic first contract to construct a 3-wire system. Eight months later, on Oct. 1, 1883, this rapidly evolving technology was formally culminated in the plant he constructed in Brockton's village center....
Among the numerous high-powered electrical experts of the day who attended the Brockton opening were the famous William Insull - who had himself long been interested in making electricity available to everyone. Also on hand, was Germany's great Woerner Siemens, who, as indicated earlier, had not only been independently involved in dabbling with 3-wire theory, but was equally involved in the already well established DC and AC arc lighting industry.

Another important attendee was Elihu Thomson, who was destined to soon establish the Westinghouse Corporation up in Lynn, Massachusetts. While the sad story of how Edison lost out to Westinghouse will be detailed later, it should be noted here that Thompson was the noted pioneer in the arc lighting industry who had boldly stated only a few months earlier that "If Edison's existing (two-wire) power plants were ever to become widely accepted, they would promptly consume the world's relatively meager supply of copper...." Of course, most American and European experts heartily agreed with him.

Although Thomson had avoided attending the opening of Edison's New York facility a year earlier - because he realized it possessed no remarkable advantages over the previous commercial plant Edison had built in London and because he still lacked confidence in the practicality of Edison's 2-wire feeder system - hesuddenly took great interest in what going on in Brockton. Along with other skeptics of the day, he now realized that a genuine breakthrough in power transmission and distribution vs. the steam engines that had been notoriously unsuccessful in smoothly transferring energy for more than a few hundred feet via steam pipes, drive shafts, and clumsy belts, etc. was imminent in Brockton. Meanwhile, he and many of his cohorts were articulating that the "centralized" electrical technology that Edison had been testing in his New York plant, however marvelous, had still not produced any hard evidence that sub-regional clusters of "isolated" generators weren't a better energy option for cities than centralized power plants....

Thompson's skepticism was further exacerbated by the fact that - even as late as August of 1883 - Edison was occasionally heard muttering to himself that  that on-site electrical generators for producing both light and power "may still have the best chance of ultimately winning out over the idea of centralized commercial generation and distribution."

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Significantly, the success of Brockton's premier "village system" settled this issue. Not only were the astute witnesses who first came to see it amazed to see how well it "harmoniously integrated Edison's latest mass-produced components, they were "electrified" by its potential to ultimately safely and inexpensively power all of the factories, offices and homes in the city up to four milesfrom the central station and thus eventually provide every structure that lay within its 30 square mile of area with unlimited energy from an ingenious complex of 3-wire 110v/220v feeder, transformer and booster systems...."
In sharp contrast to the financial challenges still being faced by the New York City operation - which didn't turn a legitimate profit for five more years - experts quickly realized that the lean and mean "Brockton 3-wire design" would soon be able to generate and sustain substantial profits. Managed by as few as three men, and featuring a per-bulb charge of only 12 cents per Kilowatt hour - which was considerably less than the ever-changing calculations being reported out of New York City - it is no wonder that Brockton model station had financial appeal. Not only did it figure to eventually reap lots of cash in powering downtown areas of countless similar emerging cities throughout the world, it also sported the potential for making a "ton of money" from powering the factories, residential areas, and farms that were traditionally concentrically located around such medium sized cities.
Another of its important feature of the Brockton facility was its beautifully simple and clean architectural design, which was sure to appeal to countless similar emerging cities and towns throughout the world.... Dramatically contrasting with the drab architecture of Edison's forbidding fourth profit-oriented "money pit," in a renovated soap factory in lower Manhattan, the heart ofthis "avante guarde" operation was sited at the very center of the Brockton's prominent City Hall Square. (Interestingly, unlike the New York plant - which was destroyed over a hundred years ago - Brockton's historic  plant still stands.... and remains a huge potential asset to this city... See Figure 12.)

Of related interest, many of the venture capitalists who came to witness the operation of the early Brockton station promptly realized its speculative benefits. They were especially impressed, for example, by its improved methods of charging and billing for electrical service. Dramatically aware that, since its inception nine months earlier, the Edison Illuminating Company of New York had remained in a financial bind (In fact Edison didn't feel confident enough to send his first invoice to a New York City customer - in the amount of $50.00 - until Jan. 18, 1883 - and was still years away from declaring a dividend,) they much appreciated the fact that the Brockton Edison Illuminating Light's remarkable new three-wire feeder system looked so slick it was never going to be obliged to hand out free bulbs or free service to its customers.


As a result of the extraordinary amount of time and work Edison put into promoting, and ultimately establishing America's first large scale commercial plant in New York City - and in spite of the fact that some of his cohorts at the New York Illuminating Company tended to ignore the concurrent Brockton achievement - the latter facility clearly represented a huge technological leap ahead of everything else in the field of central generation and distribution.... Developed at the very acme of Edison's fabulous career, it was patently obvious that the only plants that could record economically viable profits in small to medium sized cities throughout the world would be those employing its model 3-wire-feeder design....
Remarkably though, even as venture capitalists and contractors were tripping over each other applying for permits that mimicked small or medium sized Brockton-like central plants and networks, Edison always publicly verbalized his loyalty to the idea that his New York venture was his greatest achievement...." Perhaps this can best be understood via recognition of his strong personal identity with the great metropolis of New York City and its environs, as well as by considering his persistent dream of developing a critically important long range economic attachment to that city.

In any case, it was this fierce sense of "local patriotism" that led him to rank as only secondary the great significanceof the work he had pioneered earlier in Great Britain and Europe and later work in New England. But much more about this fascinating issue later...

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(Editor's addendum: As public awareness of the importance of Edison's work in Brockton dissolved ever further into the background, the Edison Illuminating Company of New York took five more years before it was able to evolve its Pearl Street plant into an authentic financial success.... Significantly, this did not occur until after that city began to remodel portions of use into 3-wire/feeder operations, which Edison would have constructed there in the first place "if timing hadn't favored building it elsewhere."

It is also interesting to note that the Edison Illuminating Company of New York did  replace the last of its long outdated two-wire conductors until "19 years after the village operation in Brockton had introduced its revolutionary 3-wire facility. Of even greater significance, Manhattan didn't get around to providing electric motors until "almost two years after little Brockton had - albeit modestly - crossed that threshold...."

Finally, as the great writer, John Steinbeck, once pointed out: "New York history is not necessarily American history." The bottom line is that Edison's patents clearly indicate that the little city of Brockton has as much right as any city in the world to call itself "the world's pioneer electrical city....."  The convincing evidence follows....

Sketch of Edison
Rare newspaper sketch of Edison at the time he was constructing his "Brockton system"

The Specific OVERARCHING features involved In EDISON'S CENTRALIZED ELECTRIC POWER FACILITY IN Brockton - WHICH WAS A highly complex and comprehensive SYSTEM of inventions That Revealed his genius  AS MUCH AS anything else - are as follows:

...It was the first system to successfully  integrate Edison's vastly improved feeder lines, junctions, mains, terminal voltage regulators, meters, potentiometers, breakdown switches, etc. into a standardized 3-wire form, allowing them be far more efficiently mass produced in his "world's first R and D factory...."

...With its safe "low strain" 110 (and later 220) voltage feeder system (Edison was convinced at this time that, in order to prevent fatal shocks to consumers, the amount of power going into homes and businesses had to remain below 250 Volts) combined with its new three-wire design (which had first been theorized by the great Hopkins in London and the great Seimens in Berlin) was now able to automatically maintain "absolute" external and internal control over the often unruly distribution of power to complex multi-use service areas. Accordingly, it virtually eradicated the challenging balancing act that had long been plaguing Edison's two-wire centralized plants and greatly accelerated the universalization of public electrification....

Contrary to Edison's earlier incorrect belief that feeder lines had to be relatively thick at the ends closest to the source of power and much thinner at the user's ends, Sprague's system-wide application of the first mathematically calculated, non-tapered,and "trim" feeder lines in Brockton added enormously to its practical viability.

Edison's associated methodology for monitoring and controlling voltage variability and calibrating feeder resistance ("spike and "drop") enabled the Brockton plant to deliver up to three times more power to ten times more commercial and residential area than had been the case with all existing 2-wire operations...

Along with the potential benefits that automatic transformers would soon began to offer, Sprague's contributions begat added savings in the cost of copper wire over and above those savings provided by 3-wire technology alone.

The associated system of conductors, junction boxes, insulating materials etc. and markedly enhanced savings in the labor costs associated with laying, maintaining, and repairing such components made it even more economical....
Frank Sprague's first authentic electric motors and his first tests and applications of his famed system of centrally powered electric street-car trolley traction were constructed in Brockton.... Sadly, the latter accomplishments - which were clandestinely brought to fruition in early 1884 and later patented under his own name - resulted in a serious rift between Edison and Sprague that was never entirely resolved.... Meanwhile, Sprague's earliest small motors were being adopted throughout scores of Brockton shoe factories and allied industries.

...Its pre-transformer-age low voltage (optional 110/220 ) three-wire design, which - regardless of its modest initial scope - was the first the first of its type on earth to feature aesthetically pleasing subterranean wiring. It also made Brockton the first place on earth to cross the boundaries of illumination while demonstrating the safe and economicaluse of lamp-socket source and non lamp-socket sources with stationary motors and ancillary appliances on a commercial parallel-feeder circuit....
Its improved metering technology was the first to finally overcome the pesky problem of "meter creep" while using the 220 volt option. Compared to the less accurate per bulb/per day billing that was still being used in parts of the New York City operation, this feature further added to its commercial viability....
Possessing a more efficacious system of distribution than non-feeder parallelwiring - which had been the key arrangement associated with the Edison's initial success in producing a practical incandescent bulb - the Brockton system was easily adapted to the in series form of wiring that under girded that city's long existing Pilson/Jenny arc-light system....

By integrating his remarkable multi-arc, or divided, incandescent light circuits, with this city's venerable undivided arc-light circuits, Edison made Brockton the first place on earth tosimultaneously power a parallel system with feeders and in series street lighting. Andunlike what had happened in New York City and elsewhere, the Brockton Edison Illuminating Company "promptly established a model for working harmoniously with the long established purveyors of AC/arc street lighting...."

Because the Brockton operation required such a relatively low capital outlay and low-interest startup costs for investors, it was the key factor in ultimately enticing hundreds of financiers to explore taking the leap into building small to medium sized centralized plants in not only small villages and their outlying rural areas, but in similar power webs in densely populated urban and industrial areas - throughout the world....


 To its great historical credit, the main features of the Brockton Edison Illuminating Light And Power Company plant ended up being mimicked by the hundreds of small plants and the much larger plants that ultimately followed.
Shortly after correcting a pesky problem with the earliest Type H generation,  its breakthroughs were retrofitted into most of Edison's existing (2-wire) demonstration plants and his numerous isolated (on-site) plants.

Before it was destroyed by fire, even the proud and highly touted New York plant was finally upgraded to include Brockton's features. Considering the fact that virtually all of the 3-wire plants that followed the design of Edison's Brockton model were showing greater net profit percentages - Edison did not flinch from regional braggadocio when, for most of the rest of his life, he doggedly clung to portraying his 2-wire New York operation as his greatest accomplishment.

This is entirely understandable when considering the strong demographic/economic advantages of identifying with that city, and the fact that that is where he built the first large scale "permanent" central electric plant in America. Accordingly, as his son Charles once suggested to this writer that [vs. his great accomplishment in Brockton], "...Yes, at times,  he may have tended to romanticize his New York facility just a bit...."
In any case, the vast majority of technological historians still fail to clearly discern the limits to what Edison actually first accomplished in New York City - vs. what he did not accomplish there with his marvelous Pearl Street facility. And sadly, as the years rolled by - and centralized networks of power production and delivery became the norm in large urban-industrial areas - the extraordinary technological and commercial advantages wrought by Edison inthe little city of Brockton have faded into the background. Moreover, once long distance high voltage AC, transformers, and turbine generators, etc. came onto the scene, they were totally forgotten.
Most fortunately, however, a little known - but highly revealing - visit to Brockton (in 1958) by Edison's son Charles helped set the historical record straight. It was at that tome that he stated with crystal clarity that his father was well aware his ultimate vindication with commercial centralized electric power took place in the remote little village of Brockton. His recorded words were "It was here that father first perfectly modeled and applied it....." He could have added that it was also here where some of the world's most savvy scientists of the time - many of whom had long been severely critiquing his father's shortcomings with centralized commercial electricity in New York City and elsewhere - finally saw fit to unanimously express their unreserved congratulations to him for what he had finally accomplished and demonstrated hewre for the benefit of all of mankind....

In conclusion, one of the most unfortunate consequences of historian's leaving the Brockton component out of the overall saga of electrical history is that it has tended to render Edison's image and character itself more vulnerable to critics than should be the case.... For example, those who shrilly argue that Edison did not personally invent most of the things he gets credit for - and that great men such as Tesla and others "were more responsible for influencing the design of our modern world" than he - are given unwarranted fodder for such arguments....
In conclusion, regardless of great work of others, what Edison did when he first introduced a successful standardized, commercially centralized, underground,  central power facility in Brockton, proving that electric light and power could be made practically available to all of mankind, was an insurmountable landmark in electrical history.
Addendum: It is said that "nothing beats an original." Accordingly, the unique features that were inherent in the Brockton central power system certainly meet that criteria.....  It is simply undeniable that - when it was introduced in 1883 - there was no other single invention or collection of inventions on earth that demonstrated "a more comprehensive and successful blending of art, science, technology and commercial viability than this one. Even if considered by itself - this most significant accomplishment of Edison's career warrants granting him the incomparably august titles: "The father of commercially successful centralized electrical production and distribution and the most influential figure of the millennium...."

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Copyrighted © 1996 by Gerald Beals  All Rights Reserved




Among the many reasons Edison chose Brockton (Brockton's Home Page) as the ideal place to construct his first 3-wire central electric plant was the fact that it featured a classic New England village center, was near Boston, and was one of the most progressive small cities in the nation. In addition, the price of gas lighting was relatively higher here than it was in most other communities being considered.

The first formal announcement of his desire to site it here took place in this city's newly constructed Hotel Palmer. Later called the Belmont, the building once stood on the south-west corner of Main and Belmont Streets. It contained 60 rooms with European style service and a spacious oak-paneled dining hall. William L. Garrison, Jr. - son of the famous anti-slavery leader (who preached many times in Brockton) - resided there while acting as Edison's Massachusetts public relations agent. Edison and several of his world famous associates (and or competitors) - London's Preese, Berlin's 3-wire pioneer Siemans, and the Americans, Insull, Thompson, Steiringer, Sprague, and others - also roomed at the Palmer during various stages of the construction and testing of the new standardized operation.

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On February 6th, 1883, the Palmer Hotel was "abuzz" with interest. Edison had engaged local technician, newspaperman, and confidante William J. Jenks to host a gathering of Brockton manufacturers, merchants, and politicians for the purpose of informing them about Edison's latest brainchild. While some of those in attendance were aware of his expensive isolated plants in Fall River's textile mills and in Brockton's huge Keith and Douglas shoe factories, few realized that he had decided to construct his first model plant to "demonstrate the commercial feasibility of centrally produced light and power right there within their midst."

Garrison and Fall River's Spencer Borden, Edison's general manager in New England, addressed the 75 people in attendance. Things did not go altogether smoothly. It soon became clear that a number of them were apprehensive about Brockton being converted into some kind of an "experimental laboratory." More specifically, although some citizens were concerned about the aesthetic impact associated with overhead wiring, most were worried about issues relating to safety. 

For example, few skeptics could understand how it was possible to safely hang incandescent bulbs upside down and opposite from the way familiar gas lights and oil lamps are oriented... Others were alarmed by the presumed threat from explosives to their homes and neighborhoods. "What will happen if the wires or the bulbs were to blow up?" they asked. "Could sparks leap from street-wires to houses and start fires?.... Would existing insurance policies cover such losses...?"

The audience looked to William Joseph Jenks for answers. A direct descendant of Massachusetts' first patent holder Joseph Jencks, he and his wife - who was Brockton's first telephone operator - had played key roles in successfully establishing Brockton's first telephone exchange. Jenks was also a highly skilled temperance speaker, with a reputation for "explaining things in a thoughtful and precise manner."

Before taking questions, Jenks cited the latest statistics on fires and asphyxiation associated with gas lighting. He then detailed how Edison' latest 3-wire/feeder technology fully solved the problem of controlling the erratic voltage and current that ordinarily emanated from imperfect steam boilers and central generators, enabling stable "bite sized" units of electricity to be safely and economically tapped into by individual consumers up to a mile and a half away...."

A major issue was that most of the audience did not realize that it was incandescent lighting and not some new form of arc lighting that Edison was proposing to them..... This was because even most the so called experts of the time believed that the subdivision of electricity was impossible. Of course, they were basing this incorrect conclusion upon their correct understanding that the white-hot light associated with burning arc lights was indeed  indivisible and that any such individual or group of arc lights could not be adjusted without affecting the brightness of all of the lights in a circuit.... What they did not understand was that Edison's new high resistance and low surface area filaments were vastly different from arcs....

Jenks carefully explained how the light that emanated from Edison's bulbs was not derived from the current and sparks that jump across the carbon rods in a series of arc lights, nor the associated gradual consumption, "burning," away of the tips of such rods. "Rather," he pointed out, "Edison's lights exploit the fact that a perfect filament operating in a totally oxygen free environment can, theoretically, last forever...." And adding that the "Edison system's subdivision of electricity was a function of each bulb's wattage, the precise voltage and amperage capacities of a each feeder line, along with the "support" of newly devised  'breakdown plugs.' i.e., safety lead-wire fuses.

Jenks now went on to demonstrate how up to ten of Edison's beautiful new and highly durable "genuine Japanese bamboo-filament bulbs" could be safely turned on and off from a simple room switch.... Local shoe manufacturers took special note when he emphasized how Edison's new the 3-wire feeder system would provide almost three times the economy of the New York system... and that its new generator and wiring scheme featured both 220 "high strain" and 110 "low strain" voltage, thereby promising that the community would have the world's first " authentic" motors and appliances, which would be so safe, "even a child could operate them."
Although Jenks did not specifically address such issues as aesthetics and insurance at this time, he told the audience that "the shortcomings and flaws in all earlier incomplete and imperfect systems had been removed and that "no product could now be more simple to use nor more satisfactory in its results." Admitting that he did not have immediate answers to the pesky insurance issue, he promised they would soon be forthcoming and that premiums would be much less than currently charged for gas. He ended his presentation by declaring that in his opinion "those who would be among the first to use the new facility would make history."

There was a brief pause during which the atmosphere in the room itself seemed to become electric. Suddenly, Col. J. J. Whipple - a colorful progressive politician who would soon become Brockton's Mayor - got up, walked to the subscription table, and arranged for his opulent Victorian residence on Green Street to be the first in the world to be lighted by the revolutionary operation. O. Patten, a well known Brockton inventor, was the next subscriber. Portus Hancock, Fred Packard, and several other wealthy shoe manufacturers followed.

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Edison was so delighted when he heard of Jenks' success in obtaining the world's first prepaid subscribers for proposed centralized electric power, in Brockton, he promptly summoned him down to the offices of his testing laboratories in Newark, New Jersey. After receiving a royal reception at Edison's Glenmont home and his former lab center at Menlo park, Jenks was shown how "standardization" was being applied to everything from the latest in state-of-the-art metering technology to the latest in light bulbs.... Over the next few weeks, he toured Bergman's famous factory and several others that held subcontracts on making some of Edison's earliest central plant components. He was also taken on numerous tours of New York's still struggling - two/wire - Pearl Street operation, 30 miles away, and presented with all of its state-of-the-art facts and figures....

By the time Jenks had returned home to Brockton, several weeks later, he had acquired the most thorough understanding of the advantages of Edison's latest integrated feeder and 3-wire patent technology that was possible. With this information, it was said that he could now "fully confound any critic, fire the imagination of those who had been cold to electricity, and kindle new enthusiasm amongst the backers...."

By December of 1883, Edison and Brockton officials had worked out all of the details that led to trumping Boston and signing the world's first agreement to construct a three-wire station in the former city . Although this contract was finalized in February, several more months passed before envious spokespersons from Boston and several other cities that had been dragging their feet in courting Edison could bring themselves to laud Jenks for his role in bringing the operation to New England.

In the Spring of 1883, when construction began at Brockton's  School Street generating plant, Jenks was acknowledged by being named as its superintendent..... W. L. Garrison Jr. - whose sister was married to Edison's closest associate, Henry Villard and who had been deeply involved in Brockton's  "abolitionist, suffrage, and temperance movements" - finally convinced Edison to build the plant at the very center of the progressive new city of Brockton. Later Garrison was named treasurer of the newly formed Brockton Edison Electric Illuminating Co.

Interestingly, once construction got under way in Brockton, Edison eliminated almost all detailed news releases on its progress. One of the reasons he may have adopted this low profile was because at this time he was "overwhelmed with problems." First, his wife was mortally ill with what was "probably a brain tumor" and would soon leave him the care of their three young children. Second, he was at the peak of the most competitive, creative, and productive period of his life, racing to perfect and patent scores inventions associated with his new three wire standardized system. Third, he was being roundly lambasted in the national press. Just prior to the Palmer Hotel presentation, for example, a "sneering" account had appeared in a New York paper describing the poor quality of the work that his staff had completed at the famous Pearl Street Station a few months earlier.... So he probably wanted any ensuing positive technological "spin" to be associated with his overall efforts at this time....
As indicated earlier, many "experts" were still suggesting that the whole idea of incandescent electric lighting was utter madness and that gas lighting was certain to ultimately prevail. Edison also had to confront a number of challenges within Brockton itself - some of which were giving a great deal of comfort to his bitter adversaries at the local gas utility. For example, ever since he had announced his breakthrough in developing the electric light bulb, gas securities had been falling in value. Now, several high ranking members of the Brockton Gas Company - who were smarting from their losses - threatened to stop attending meetings at their lodges if their respective directors installed incandescent lighting.

One of the most humorous items of this stressful period involved a burly custodian who - two months before the School Street plant was scheduled to open - had literally run off his job and not been seen in weeks. A former locomotive worker, he had been hired because "he had steady nerves and supposedly felt no anxiety working around unpredictable and often dangerous coal-fired boilers...."

Editor's Note: Similar to today's lingering public concerns about the safety of nuclear power plants, many citizens of the late 1800's questioned the safety of tubular steam boilers. Some could recall dozens of associated explosions. The earliest on record had killed eight workers at the Lazell Foundry in nearby Bridgewater. Another tragedy had occurred on Silver Lake - Brockton's reservoir - when a small steamboat blew up, horribly injuring dozens of children on a Sunday School outing. Three of these children and two chaperones died from the burns.... Over the next year, about 150 Massachusetts citizens were killed in steam explosions. Still another such tragedy had occurred in Plymouth when a train engine had blown up just as it entered the central station.

In almost all of the above instances, poorly riveted boiler sections were the root cause of them being blasted hundreds of feet into the air. Of equal alarm, the smashed safety meters associated with most of them indicated that that their respective pressures were "well within safe limits."

Meanwhile of course, the popular writings of Jules Verne - warning that the world was about to come to a violent end as a result of huge a boiler explosion - lurked in the minds of millions. Finally, on March 20th, 1905, "many Brocktonians in the Campello were suddenly convinced that his prediction had arrived" when at 7:50 am., the an unattended, overheated boiler suddenly blew apart the central portion of the gigantic Grover Shoe Factory and then veered towards the city's center, killing fifty eight workers.... The only positive outcome of this disaster was that stringent national boiler construction standards were ultimately enacted, finally resulting in the general public's acceptance of the "safety" of steam boilers....  See www.groverdisaster.com

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. . . In any event, it soon became clear that, although the missing plant custodian had little fear of the plant's rumbling and hissing boiler, he was downright fidgety around static shocks, "a great abundance of which were experienced at the plant." Sometimes, during thunder storms, huge sparks would leap from the bare copper wires that were grooved into, or nailed directly onto, the building's wood framing and lit up the whole room. While insurance men now refer to this as "undertaker's wiring," it should be noted that - until ceramic insulators were developed - the best insulating material of the time was believed to be wood.

On one occasion - on an otherwise calm night - a single lightning bolt "seemingly from out of nowhere" made a direct hit on the plant resulting in so much short circuiting that many of the wires that were deeply imbedded within augured holes in the structure's floor joists caught on fire. That was when the often slightly inebriated, but generally trustworthy custodian - who was already convinced the place was "demonized" - bolted out a rear window of the smoking building and was last seen running towards the Brockton railroad station. Someone later quipped "probably to reapply for his former - much less dangerous - job as a boiler-tender on the Old Colony Railroad."

George W. Cross, a local tack manufacturer who was friendly with Edison - and a strong supporter of electrification - responded to the situation by devising the first insulated (with gutta percha) wire staples and brads and some of the earliest insulated 3-wire feeder connectors. Even more significantly, he was also the key figure in founding the Brockton City Theater "the first theater in the world to be entirely powered from a centralized electrical station."

In late August of 1883 , a month before the planned date of completion of the Brockton system, Edison faced - or at least purportedly faced - one of the most significant public relations challenges of his career. The story goes as follows: While few nineteenth century entrepreneurs had reservations about how they went about "developing" the New England landscape, Brockton had a number of outstanding exceptions. The citizen who kept the closest watch on technological development and its impact upon natural aesthetics in this part of the Plymouth County "motherland" was a rising young shoe manufacturer (and proud Pilgrim descendant) named Daniel Waldo Field

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As a young man," Edison had worked as an electrical technician for George Field - a distant relative and close friend of Daniel Field's father. Although the relationship had been notoriously strained, Daniel Field was one of the first to cordially welcome the now famous inventor to Brockton. And he was definitely interested in the potential of electrically powering the new shoe factory he had just built in the Montello section of Brockton. Nevertheless, it wasn't long before they found themselves at odds with each other on an issue that was destined to make environmental history....

While Field was a tough minded world-class entrepreneur, he was also a sensitive, self-styled, conservationist. "Somehow, he never had a problem in blending his absolute faith in 'pure' capitalism with his abiding love of nature and community." Moreover, he was absolutely unswerving in his belief that "A city requires an abundance of natural and architectural beauty - and goodness - in order for its inhabitants to be truly happy."

As soon as Edison's crew had identified a number of beautiful trees in the downtown area that, presumably, had to be cut down in order to accommodate what essentially amounted to a 2000 foot "extension cord," Field was asked to lead an opposition movement. Noting that "Decaying 90 foot tall  telegraph poles that had as many as 40 cross bars supporting layer upon layer of telegraph wires and telephone wires were already a blight in New York City,"  Field argued that Edison was about to introduce similar havoc in Brockton. It was the first of several important conservation/aesthetics issues that Field would raise over the next 50 years.

In spite of the powerful civic challenge marshaled by the impassioned 28 year old conservationist, Edison did not immediately give the order to bury the wires. And by mid-summer, the plethora of changes he kept coming up with - and related delays - had put the cost of building the 3-wire plant in Brockton "considerably beyond budget." Meanwhile his local financiers were complaining that over half of their investment in the venture had already been expended. Ultimately, Edison placed the aesthetics issue - plus a number of safety issues - into the hands of Garrison - his chief assistant.

Garrison was a very articulate author and quite a showman. Edison greatly valued his ability to win over audiences with humor and satire. On one occasion, for example, a group of bellicose representatives from the local gas company tried to convince an audience that "the mad wizard from New Jersey was about to blow up the whole village." Garrison retorted by claiming that they were probably "far less concerned about public safety than they were about the prospect of no longer being able to conveniently light up their expensive cigars from the open flames of gaslights." Interestingly, the wry comeback turned the tables and suddenly made the gas company executives themselves the laughing stock.

Although Garrison rather easily dismissed most of the safety issues related to electrifying Brockton, he never completely allayed the public's concern over the aesthetic impact from Edison's presumed proposal to utilize above ground wiring... Accordingly, Field's persistent warning that "a maze of copper was about to replace the branches of our ancient elms and darken the blue sky over our beautiful village" was seared into the public mindset.  However, in the end - even though the decision involved some untested changes - the Brockton investors agreed to pay for the underground system.
With the assistance of William Jenks - Edison secured permission from the local town fathers to bury all of his feeders and mains exactly 30 inches below the cobble stones. The municipal mandate was a move that guaranteed that the Brockton village model would be even more singular than otherwise.... For the first time ever, the high efficiency associated with standardized three-wire generation and feeder distribution were combined with the aesthetic advantages of subterranean wiring. (Interestingly,  New York City did not pass its first ordinance "prohibiting all above ground wiring" until a year later, in 1884.)

By mid-September of 1883, the remarkable operation was ready to go into service. The circuit, which initially incorporated 150 of Edison's latest new type standardized 600 hour, 10 candle-watt, 1.4 lumen bulbs was connected to more than a dozen retail establishments, plus a barber shop, carpet store, and several popular billiard halls that had formerly used harsh  buzzing and sparking arc lights. On October first - just a week before Edison signed a contract with England's Joseph Swan to develop the Edi/Swan bulb, a troupe of his famous associates - a few of whom had once been his severest critics - arrived, by train from Boston to oversee the first official use of his "latest and most remarkable contrivance." By 5 P.M. - even though the event had not been much publicized - a relatively large crowd had gathered at the School St. plant. They watched anxiously as the shy and rather tense thirty-seven year old prematurely iron-gray haired genius - whose wife had only recently passed away - tinkered with the dynamos, wires, and the newly invented stack of lead-sulfide off peak accumulators (early batteries). At 6:15 P.M., after being a bit too casually introduced to the onlookers, Edison stepped over to the master panel and threw the equivalent of the main switch.

Shockingly, as he began to increase the power, something totally unexpected happened. The "pilot lights" on the miniature circuit board, or "story board," indicated that most of the 150 trial bulbs on the potential 2000 bulb circuit were "flickering" and that a few had actually blown out. Realizing that fluctuations in the current were approaching the critical 3% design limit, "Edison's thoughtful countenance barely changed as he reached back and shut down the entire operation."

It soon became obvious that the unpretentious young inventor suspected that some of his construction guidelines had not been followed to the letter. After firing off several questions, he determined that - among other causes for this initial failure - laborers had hastily shoved some feeders through a section of Extraordinarily heavy cast-iron water pipe. "This had either caused a short... or a phenomenon involving earth currents and electromagnetic surges that can make current behave like water backing up in a constricted fire hose."

While fresh bulbs were being affixed to their sockets, Edison created a temporary "bypass," and made several adjustments.... And within a half hour from making his first try, he signaled to an assistant to have another go.... The moment he said "Let there be light," a cheer arose from the village, heralding dramatic success. For the first time in history incandescent light was steadily and brightly shining through many of the windows in the charming center.

Obviously very pleased, Edison spent another hour fine-tuning his exquisite machinery. At about 8:00 P.M., all eyes focused upon "the greatest inventor the world has ever known" as the "alert eyed, prematurely iron gray" genius calmly announced that his unique Brockton operation  was a "complete success." Indeed so. By successfully demonstrating the workings of the world's first prototype of a truly profitable and standardized 3-wire central power plant, he had just taken his last major step in manifesting his four year old dream of creating the first genuinely complete and perfect system of centralized electrical generation and distribution.....

Most significantly, this very first Brockton 110/220 DC conduction circuit - which was so modest it could barely power a modern Christmas tree - included all of the basic elements of design necessary to enable it to later be easily enlarged and even adapted to the soon to emerge huge AC transmission grids - which contrary to popular opinion - Edison had initially anticipated and felt comfortable with in the first place.... The key point here is that his primary objective at this particular time was to show how effectively he could generate and distribute a safe and economical form of electricity that would effectively power his latest long-lasting "new type bulbs," small motors, and appliances - and anything else that might become electro/mechanically feasible in a village or medium sized urban setting.... Interestingly, along with its low voltage features, its experimental off-peak night-time DC accumulator (battery cells) backup system and its underground wiring put it in more harmony with today's concept of energy conservation and aesthetics than the humongous AC systems that came into vogue 13 years later, and still prevail....
The reader should be reminded here that, initially, it was not practical to use alternating current in connection with electric motors. Nor was it readily adaptable to use with storage batteries, electroplating, deposition, etc....Of related interest, the book: "Direct And Alternating Currents," written by Loew and Bergseth in 1954, and several later publications, show that the marvelous discoveries associated with AC current did not - as some have claimed - readily annihilate the importance of DC current. Thousands of sub-regional DC/AC operations were still flourishing in the mid 20th century in the United States, Canada, England, France, etc....
It is also important to note that - during the latter half of the energy hungry 20th century - a number of DC breakthroughs occurred which guarantee its continued use and further development. For example, improvements in transformers, exploitation of solar, tidal, and wind power -, and the modern development of Edison's turn-of-the-century invention of the dry cell alkaline battery - have made DC the best method for powering motors in electric cars, portable tools, space vehicles, computers, cell phones etc.
The upshot is that while the supposedly progressive 20th century environmentalist concept that "small is beautiful" may not have begun with Edison's Brockton system, it was certainly embodied as key feature...." There is little question that DC transmission itself will continue to have an important future.... For example, its present use between two major northern and southern Manitoba, Canada hydro-electric stations has proven highly successful.... This is because - in some cases - associated state-of-the-art technology has enabled power losses over long distances to be considerably less with DC than with AC. Finally, because only two conductors are needed in such a system, the cost of manufacturing a DC transmission line is still - as it always has been - about a third cheaper than an AC line. Sounds familiar? The reader may recall that over 120 years ago Edison made a similar argument when he demonstrated during pre-transformer days that AC transmission lines - which require three conductors - were far more expensive than DC lines....
Finally, it should be noted here that a number of "socially conscious" engineers anxiously anticipate the day when clean renewable energy from sources such as nuclear fusion; solar voltaics; "artificial" photosynthesis capable of  producing pure hydrogen and oxygen; semi-conductors; cold fusion; and wireless transmission, etc. become a reality... At that time, any so-called conflict" that might exist between AC and DC will have dissolved and eliminated mankind's primary dependency upon corporate AC grids - and perhaps eliminate our need to continuously feed them with shaky Middle Eastern oil resources....  For more on the current merits of DC vs. AC, see: http://en.wikipedia.org/wiki/HVDC#Advantages_of_HVDC_over_AC_Transmission

(See examples of Edison's initial belief in the value of both AC and DC, and in directly generating on site DC power with electro-chemicals vs. traditional combustible dynamo sources. Also see the still very strong affect the brilliant British scientist Lord Kelvin had upon what some say was his over-influencing Edison to focus upon DC power vs. AC power....Like many other scientists, Kelvin eventually jumped ship ten years later when - after attending an AC exhibit at the Chicago Exposition - he gave his full support to the AC concept. Considering the rapidly developing state of today's DC technology, it would be interesting to know what his overall position would be on the matter today.)


  When Edison's son, Charles, made a commemorative visit to Brockton in 1958, Charles Edison in Brockton he was asked if the persistent local "legend" that his father never actually intended to use overhead wiring in Brockton in the first place was true. The query was rooted in the fact that Edison was extremely disappointed when the financiers of the Brockton project reneged on their original agreement to assume all costs associated with burying the wires. The related story goes that, "because he didn't want to set a precedent of paying for something he had not agreed to pay for in the first place, he devised a bold scheme that took advantage of the community's well known concern with conservation and aesthetics."
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Specifically, in the late summer of 1883 - about a month before the deadline for completing the Brockton plant - he ordered two of his linemen to make conspicuous trips throughout the town, giving the impression they were contemplating cutting down, or it least severely trimming, the many beautiful trees that supposedly interfered with hanging the necessary wiring for this project. Then, in order to assure that Brockton's citizens would be sufficiently alarmed by the prospect of the above ground wiring, he ordered that the trunks of a number of the stately elms along Main Street and their branches be chalk-marked with the letter 'T' for tough and the letter 'E' for easy." Finally he had his engineers string hundreds of feet of unsightly temporary wiring along the East side of Brockton's beautiful Main Street. The upshot, as indicated earlier, was that the ensuing public outcry was the key factor that persuaded Edison's conservative local financiers to finally pony up the additional promised funds needed to construct a three wire underground system.

In response to the above question, Charles politely stated that while he did not know the details on why underground wiring prevailed in Brockton, he was certain the city's well known concern with sound planning, conservation, and aesthetics had played a key role.... He added that in his later years his father who had once bragged about filling beautiful valleys with factories, but later became a fast friend of several leading conservationists and a strong supporter of aesthetics and nature, took great comfort from the fact that, along with its many other benefits, "his unique Brockton prototype led to the salvation of millions of trees throughout the world." He also noted that his esteemed father and mother had chosen to be buried on their beautiful 14 acre estate at Glenmont, New Jersey among an especially beautiful stand of trees they very much loved.

When asked about his father's peculiar aversion to comparing the significance of the Brockton system vs. the New York system, he said he had no explanation for it, adding that "They were two different evolving systems... Father often proudly said he completed his first perfect model [of centralized power and distribution] right here in Brockton...."  In response to a question about an unpleasant controversy that had purportedly developed between his father and Garrison and some of the stockholders of the Brockton Edison Illuminating Company, including some who allegedly tolerated the use of illegal non-Edison bulbs and regularly cavorted with some of Edison's worst behaving competitors - Charles said, so far as he knew, "there never was any real controversy," adding that "he always cherished the close friendships and mementoes associated with his work here..."

Summing up, Brockton's 1883 Central Power Plant was "The first to be designed from the ground up as a wholly standardized system that was tailor-made with parts from Edison's emerging state-of-the-art manufacturing plants... As his last major step in central power plant development, it remains at the very pinnacle of Edison's countless achievements.... Featuring vastly improved feeders, mains, generator wiring, and the latest underground three-wire components, even his harshest critics grant that this scientifically and structurally artistic accomplishment was entirely new on the face of the earth and "could never have been so perfectly harmonized at that point in time by anyone other the Wizard of Menlo Park." And even though this DC system was soon modified to feature AFC current, it was critically important in conditioning people to the idea of lighting and powering  many factories and homes simultaneously via the concept of  centralized - vs. on-site -  electrical power stations.

"Details on Brockton's Electrical Firsts"


Another Largely Ignored Massachusetts First :With The Support And Guidance Of George Westinghouse, William Stanley of Pittsfield, MA incorporates the first transformer into the Nation's first alternating current station in Great Barrington, Massachusetts

The author heartily invites your scholarly critique of any concept on this web site.
Please submit it to:  gerrybeals@comcast.net

website design mhreed7@comcast.net

Please Note: No part of this publication may be reproduced or distributed in any form or stored by any means in a database or retrieval system without the prior written and express permission of the author. Copyright © Gerald Beals June, 1999. All rights reserved.

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Three Wire Technology
Breakthrough in Brockton
Dr. John Hopkinson
Edison's "ruthless exploitation"
New York History not American History
Edison's Centralized Electric Power
The Detailed Brockton Story
Hotel Palmer
Residence on Green St. first light home
Grover Shoe Factory Disaster
Brockton City Theater
Charles Edison in Brockton
D.W. Field
Detail's on Brockton's Electrical First
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