Molly Ayala
The history of electricity is a long and complex one, with many pioneers and innovations that have shaped the modern world. While electricity is a natural phenomenon, humans have only recently learned to generate and harness it for our benefit. In the early 1700s, English scientist Francis Hauksbee made a glass ball that glowed when rubbed, demonstrating electrical attraction and repulsion. This discovery laid the groundwork for future innovations in lighting. The first operative AC line was put into service in Rome, Italy, in 1885, marking a significant development in electricity transmission. The late 19th century saw a rapid spread of electrification across the globe, with countries like the United States, Canada, the United Kingdom, Australia, and Japan embracing electricity and laying the foundation for modern power distribution systems. The competition between Thomas Edison's direct current (DC) system and George Westinghouse's alternating current (AC) system, known as the War of the Currents, was a pivotal moment in the history of electricity. As technology continues to advance, the world is now witnessing a transition from fossil fuels to renewable sources of electricity, such as wind, solar, and hydroelectric power.
| Characteristics | Values |
|---|---|
| Date of first long-distance transmission of electricity | 3rd June 1889 |
| Location of first long-distance transmission of electricity | Willamette Falls, Oregon to Portland, Oregon |
| Distance covered by first long-distance transmission | 14 miles |
| Company involved in first long-distance transmission | Willamette Falls Electric Company |
| Type of electricity transmitted in first long-distance transmission | Direct Current (DC) |
| Inventor of DC | Thomas Edison |
| Year AC electricity was transmitted long-distance for the first time | 1890 |
| Company that transmitted AC electricity long-distance for the first time | Willamette Falls Electric Company |
| Inventor of AC | George Westinghouse |
| Year electricity exhibition was held in Frankfurt | 1891 |
| Year of the Chicago World's Fair | 1893 |
| Company that won bid to power Chicago World's Fair | George Westinghouse |
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What You'll Learn
The first long-distance transmission of electricity
The history of electricity is a long and fascinating one, dating back to ancient times when humans first observed its power. However, the story of its transmission over long distances is a more recent development, with the first long-distance transmission of electricity taking place in 1889.
In the early days of electricity, power was generated locally, with small stations scattered across cities, burning coal to provide electricity for customers in their immediate vicinity. This model resembled the contemporary steam-powered energy system. However, as engineers like Thomas Edison and George Westinghouse experimented with electrical wiring, they envisioned a future where power could be transmitted over larger distances.
In 1890, a flood destroyed the Willamette Falls power station, leading to the installation of experimental AC generators from Westinghouse. This marked the first long-distance transmission of alternating current (AC) electricity. AC technology allowed for the conversion of power to higher or lower voltages more efficiently, making it a preferred option for long-distance transmission.
The International Electro-Technical Exhibition in Frankfurt, Germany, in 1891 showcased another significant milestone in long-distance electricity transmission. This exhibition featured the long-distance transmission of high-power, three-phase electric current generated 175 km away at Lauffen am Neckar. This system successfully operated motors and lights, impressing corporate technical representatives and establishing three-phase current as the most economical means of transmitting electrical energy in Germany.
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The debate between direct current and alternating current
The late 19th century saw the advent of electric power transmission, which involves moving electricity from its source to distant locations. Before this, power was transmitted across long distances using telodynamic (cable in motion), pneumatic (pressurised air), and hydraulic (pressurised liquid) transmission systems.
In the late 1880s, a debate unfolded between alternating current (AC) and direct current (DC) distribution. Thomas Edison, who had built 121 DC power stations across the United States by 1887, proposed a system of small, local power plants that would power individual neighbourhoods or city sections. This was because DC could not be easily converted to high voltages. However, AC could be easily transformed between voltage levels, making it more feasible for high-voltage transmission. In 1886, the electric company Ganz Works electrified all of Rome with AC.
The debate between AC and DC played out in the public domain. Edison, keen to protect the royalties he earned from his DC patents, campaigned to discredit AC, spreading misinformation that it was dangerous. He even publicly electrocuted stray animals using AC to prove his point. However, George Westinghouse, a famous industrialist from Pittsburgh, believed that Edison's low voltages were too inefficient for the transmission needed for large systems. Westinghouse purchased Nikola Tesla's patents for AC motors and transmission, recognising that AC could be converted to different voltages relatively easily using a transformer.
The Chicago World's Fair in 1893 took place at the height of this "Current War". General Electric bid to electrify the fair using Edison's DC for $554,000, but Westinghouse undercut them, promising to power the fair for only $399,000 using Tesla's AC. Westinghouse was awarded the contract, and the fair was successfully powered by AC.
Today, electricity is still predominantly powered by AC, which is used to deliver power to homes, offices, and so on. However, DC has seen a renaissance of sorts, as computers, LEDs, solar cells, and electric vehicles all run on DC power. Methods are now available for converting DC to higher and lower voltages, and high-voltage direct current (HVDC) can be used to transport electricity long distances with less electricity loss. It appears that AC and DC will work in parallel, rather than continuing to battle it out.
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The role of Thomas Edison
Thomas Edison played a critical role in introducing the modern age of electricity. He was an American inventor and businessman who developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. Edison was inspired by a book on natural and experimental philosophy given to him by his mother, which sparked his interest in electricity. He established the first industrial research laboratory in Menlo Park, New Jersey, where many of his early inventions were developed.
Edison began his career as a news butcher, selling newspapers and other items on trains. He then worked as a telegraph operator, which inspired some of his earliest inventions. In 1870, he moved to New York City and partnered with Frank L. Pope, an electrical expert, to produce the Edison Universal Stock Printer and other printing telegraphs. Edison also worked on improving an automatic telegraph system, which laid the basis for his development of the electric pen and mimeograph.
One of Edison's most notable contributions to electricity was the invention of the first commercially viable electric light bulb in 1879. He founded the Edison Illuminating Company in 1880 and patented a system for electricity distribution. Edison also built the first power plant, the Pearl Street Power Station, which opened in 1882 in New York City. The plant sent electricity to 85 customers and produced enough power to light 5,000 lamps.
In addition to his work on electric lighting, Edison also invented the phonograph, the motion picture camera, and an experimental electric railroad. He took out 1,093 patents in various fields, including electric light and power, telephony, and sound recording. Edison was a systematic and methodical thinker who collaborated closely with machinists, designers, and scientists in his laboratory. He was also a skilled businessman who understood the importance of publicity and funding.
Thomas Edison's innovations and inventions revolutionized the field of electricity and power transmission, paving the way for the modern age of electricity. His work laid the foundation for many of the electric machines and technologies we use today.
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The spread of electrification in the US and globally
In the US, the early days of electrification were marked by a competition between Thomas Edison's direct current (DC) system and George Westinghouse's alternating current (AC) system. Edison's DC system was the standard form of electricity in the United States, but it was inefficient for long-distance transmission. Westinghouse, along with Nikola Tesla, a student of Edison, championed the AC system, which could supply power to larger areas and was cheaper to distribute. This "current war" played out in the public sphere, with Edison even resorting to a "misinformation campaign" to argue that AC was more dangerous.
Despite Edison's efforts, AC eventually became the standard for electricity in the US. In 1893, Westinghouse's AC system was chosen over General Electric's DC system to power the Chicago World's Fair. Additionally, in the same year, the Niagara Falls Power Company awarded the generating contract for the Niagara Falls generation project to Westinghouse, further solidifying the adoption of AC.
Globally, the spread of electrification varied depending on the developmental levels and receptiveness of individual nations to new technologies. For example, in Japan, electricity "appeared" in 1878 and began to spread to the general population in 1887, while in Russia, the Tsar's state was unreceptive to new technologies, which delayed the spread of electrification despite the presence of Russian inventors who found fame in Western Europe. The Meiji government in Japan played a crucial role in the rapid spread of technology by sending Japanese nationals to the West to study and adopt Western ways and technologies.
The tools and means of moving electricity over long distances, known as electric power transmission, also played a significant role in the spread of electrification. The development of turbogenerators by Charles Parsons in 1889 enabled the availability of large amounts of power from diverse locations. The concept of using step-up and step-down transformers to transmit electricity, first implemented by Westinghouse and William Stanley, Jr., became the basis of modern transmission and facilitated the spread of electrification.
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The impact on cities and pollution
The introduction and expansion of electricity in the Western world during the late 19th century had a profound impact on cities and pollution. The development of electric power transmission systems enabled the movement of electricity over long distances, transforming urban landscapes and influencing energy consumption patterns.
One of the most notable impacts of electricity on cities was the introduction of public lighting. The first operative AC line was installed in Rome, Italy, in 1885, providing lighting to the via dei Cerchi street. This was soon followed by similar installations in London and other cities. Electric lighting revolutionised urban spaces, making them safer and more accessible after dark. It also contributed to the development of evening leisure activities, such as theatre shows and evening dining, shaping the cultural fabric of cities.
Electricity also brought about significant changes in transportation within cities. Cable cars, a form of telodynamic transmission, became a common mode of transport, with their lines extending for miles. Additionally, the electrification of tram and trolley systems in urban centres improved mobility for residents and visitors alike.
The adoption of electricity in cities led to the establishment of centralised power plants, which could generate and transmit electricity to a wide area. This centralisation had both positive and negative environmental consequences. On the one hand, it facilitated the implementation of pollution control measures, such as those mandated by the Clean Air Act in the United States, which substantially reduced emissions of major air pollutants. Power plants began to employ strategies like burning low-sulfur-content coal, co-firing wood chips with coal, and using electrostatic precipitators and scrubbers to remove particulates from combustion gases, thus improving air quality.
However, centralised power generation could also lead to concentrated pollution in certain areas. The burning of fossil fuels, coal, and biomass contributed to CO2 emissions, with the electric power sector being a significant source of these emissions. Additionally, the generation of electricity required the use of water resources for cooling and other functions, impacting water bodies through thermal pollution and discharges of pollutants. Solid waste generation, including hazardous waste, was another concern, with coal-fired power plants producing ash sludge that posed risks to groundwater if not properly managed.
The impact of electricity on pollution is also evident in the way it influences climate change adaptation. Rising ambient temperatures due to climate change increase the demand for electricity, particularly for cooling during hot hours. This results in a positive feedback loop, where increased electricity consumption further contributes to greenhouse gas emissions, exacerbating climate change.
Overall, the introduction of electricity in the Western world had far-reaching effects on cities and pollution. While it brought about transformative improvements to urban life, it also presented environmental challenges that required ongoing efforts to mitigate and manage.
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Frequently asked questions
Electricity was introduced to the US in 1882, with the first American home powered by hydroelectricity located in Appleton, Wisconsin.
The first long-distance transmission of electricity in the US took place in Oregon in 1889, transmitting electricity from Willamette Falls in Oregon City to downtown Portland.
By 1960, virtually all homes in the US had electricity. However, electricity didn't become the standard form of energy in the US until the 1970s, when gas became more expensive.
