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Ontario Hydro

From Alfawiki
Ontario Hydro
Company typeCrown corporation
IndustryElectric utility
PredecessorHydro-Electric Power Commission of Ontario
Founded1906
Headquarters
Ontario
,
Canada
Area served
Ontario, Canada
ProductsElectricity generation and transmission (hydroelectric, coal-fired, nuclear)

Ontario Hydro, originally founded in 1906 under the name Hydro-Electric Power Commission of Ontario, functioned as a publicly owned electricity provider within Ontario. Its initial mandate was to construct transmission infrastructure to supply municipal utilities with electricity generated by private operators at Niagara Falls. Shortly thereafter, it began acquiring private generating stations and increasing its own production capabilities. After utilizing most available hydroelectric resources, the organization expanded into coal-fired power plants and subsequently nuclear energy facilities. The entity was rebranded as "Ontario Hydro" in 1974, and by the 1990s had grown into one of the largest fully integrated electric utilities in North America.

Origins

The concept of harnessing electric power from the Niagara River dates back to 1888 when the Niagara Parks Commission invited proposals for an electric scenic railway running between Queenston and Chippawa. The Niagara Falls Park & River Railway secured the concession in 1892 and, by 1900, operated what was then Canada’s largest dynamo at . From 1899 onward, various private groups sought rights for power generation, including:

By 1900, Niagara’s generating capacity had reached , prompting concerns about public access to this resource. At a June 1902 conference held in Berlin, a report recommended legislation empowering municipalities to establish cooperatives for electrical energy development and trade. Premier George William Ross’s government initially dismissed these recommendations; only after his electoral defeat in 1905 did initiatives to create a public utility gain momentum. During that election campaign, James Pliny Whitney pledged:

Formation of the Hydro-Electric Power Commission of Ontario

In May 1906, the Hydro-Electric Power Commission of Ontario ("Hydro" or "HEPCO") was officially formed, appointing its first commissioners: Adam Beck, John S. Hendrie, and Cecil B. Smith. HEPCO operated with a hybrid organizational structure combining elements of a government department, crown corporation, and municipal cooperative alongside private entities—reflecting a politically motivated response following the 1905 election.

By January 1, 1907, referendums held in Toronto and eighteen other municipalities ratified provisional agreements with HEPCO that authorized bond issues to finance local distribution infrastructure. The leadership efforts of Adam Beck’s associate, William Peyton Hubbard, were instrumental in securing these approvals. The inaugural transmission lines supplied electricity to southwestern Ontario by 1910, with Berlin (later Kitchener) becoming the first city powered via long-distance transmission from Niagara Falls.

The typical process for Hydro’s expansion into municipalities involved:

  • Requests from municipal councils for local distribution systems;
  • Assessments by Hydro engineers concerning facilities and anticipated load;
  • Negotiations of provisional contracts contingent upon voter approval;
  • Issuance of thirty-year debentures to fund construction;
  • Construction of tie lines connecting municipalities to Hydro’s network.

During the 1920s, Hydro experienced significant growth:

  • In September 1921, it acquired the Toronto Electric Light Company along with associated railway interests, establishing itself as the world’s largest electric power system. Legislation enacted in 1922 prevented late claims against these acquired assets.
  • Amendments passed in 1921 and 1924 introduced grant-in-aid initiatives aimed at promoting rural electrification by reducing rates in designated regions.
  • By the late 1920s, most private power producers found it difficult to compete with Hydro’s expansion efforts, leading many either to exit or focus on unserved markets.

In 1926, the Ferguson administration authorized the Abitibi Power and Paper Company to develop the Abitibi Canyon Generating Station, which became Ontario’s largest facility since Niagara Falls. This project was supported by confidential long-term purchase contracts and indemnities benefiting Hydro. Although immediate demand for this added capacity was limited, Abitibi entered receivership in 1932. Subsequent legislation permitted Ontario Hydro to take control over multiple Abitibi developments. The controversy surrounding this takeover—known as the "great Abitibi swindle"—played a role in toppling the Henry government during the 1934 election.

By 1939, HEPCO had obtained regulatory authority over all electricity generators within Ontario as well as powers to acquire underperforming utilities, thereby consolidating provincial control over power production.

In 1948, HEPCO transitioned most of its electrical system from a frequency of 25 Hz to 60 Hz; however, Fort Erie continued operating on 25 Hz until 1966 and maintained uninterrupted service during the 1965 Eastern Seaboard Blackout.

By the mid-20th century, Hydro functioned as a fully integrated utility. Postwar demand increases prompted extensive expansions of hydroelectric stations. In 1953, Ontario Hydro began establishing interconnections with American utilities—starting with the Keith-Waterman line connecting Windsor to Detroit Edison at an initial voltage of 120 kV later upgraded to 230 kV by 1973. Additional links were developed with New York State utilities. This period also witnessed construction of coal-fired generating plants that expanded throughout the 1960s and ’70s before nuclear power capacity eventually surpassed coal generation.

Hydro-Electric Railways

In 1912, Adam Beck advocated for the development of electric interurban railways within the commission's jurisdiction, which resulted in the Legislative Assembly passing The Hydro-Electric Railway Act, 1914. Despite this early support, changes in governmental policies and public attitudes during the 1920s curtailed further expansion, leading to the discontinuation of all such services by the 1930s, except for the Hamilton Street Railway streetcar system, which continued operations until 1946.

Expansion

During the 1960s, HEPCO led the introduction of ultra-high voltage (UHV) transmission lines across North America. The planning phase began in 1960, culminating in 1967 with the commissioning of 500,000-volt lines that transmitted hydroelectric power from Northern Ontario to key urban centers including Toronto, London, and Ottawa. By 1970, nearly all municipal electricity providers in Ontario were interconnected within a single grid. Through the 1970s and 1980s, Ontario Hydro further extended this 500 kV transmission infrastructure to its present magnitude.

Prior to the activation of its nuclear facilities, Ontario Hydro’s generation capacity and annual output (as of 1969) were as follows:

Ontario Hydro's power resources (1969)
Power source Type Dependable capacity (GW) Annual energy output
Generated Hydro-electric 5.8 32,662.5 GWh (117,585,000 GJ)
Thermal-electric 4.7 18,771.4 GWh (67,577,040 GJ)
Purchased Hydro-electric 0.5 6,503.5 GWh (23,412,600 GJ)
Nuclear 0.2 411.5 GWh (1,481,400 GJ)
Total 11.2 62,448.9 GWh (224,816,040 GJ)

HEPCO becomes Ontario Hydro

In 1974, the commission underwent restructuring into a crown corporation and adopted the name Ontario Hydro,[1], embracing a longstanding nickname. Across many Canadian provinces including Ontario, "hydro" has become a common term for electric power irrespective of its production method.

Nuclear power stations

Starting in the late 1950s, the corporation embarked on designing and constructing CANDU nuclear power facilities. The first commercial nuclear plant began operation at Douglas Point in 1965.

Throughout the 1960s and 1970s, Ontario Hydro expanded its nuclear portfolio with an initial four reactors at Pickering Nuclear Generating Station, followed by development at Bruce Nuclear Generating Station and an additional four reactors at Pickering. By the end of the 1980s, Ontario Hydro managed one of the largest nuclear fleets globally.

Ontario Hydro nuclear power stations
Station Units In service Status
Nuclear Power Demonstration 1 1962 Decommissioned 1987
Douglas Point 1 1968 Decommissioned 1984; site leased to Bruce Power by OPG; equipment owned by AECL
Bruce 1–4 1977–1979 Unit 3 restricted to 92.5% capacity
5–8 1984–1987 Operated by Bruce Power; site owned by OPG
Pickering 1–4 1971 (Units 2–3 currently in safe shutdown)
5–8 1983
Darlington 1–4 1990–1993 Operated by OPG

In 2011, the Bruce Nuclear Generating Station achieved distinction as the world’s largest nuclear power plant based on net electrical output rating, total number of reactors, and operational units.

The final nuclear facility constructed in Ontario, Darlington Nuclear Generating Station, was initially planned during the 1970s but encountered significant construction delays triggered by political decisions beginning in 1981. These postponements caused project costs to escalate from $7.0 billion to $14.5 billion, with delay-related factors responsible for approximately 70% of this increase.

Management challenges, excess capacity, and budget overruns

Concerns regarding the effectiveness of management had persisted for years, largely due to the corporation's vast scale. In 1922, a commissioner stepped down, citing issues related to operational inefficiency.

During the 1970s, Ontario Hydro’s approach to expansion underwent critical examination through multiple commissions:

  • The Solandt Commission (1974–1975) evaluated transmission line projects connecting Nanticoke Generating Station to Pickering and from Lennox Generating Station to Oshawa.
  • The Porter Commission in 1980 advocated for prioritizing demand management over further capacity growth; however, this recommendation was mostly disregarded.

The 1980s experienced notable rate hikes driven by several factors:

In 1989, Ontario Hydro released Providing the Balance of Power, a comprehensive four-volume forecast extending to 2014 that presented various options for replacing aging power generation assets. This strategy was undermined by reduced electricity demand during the early 1990s economic downturn.

Dissolution and restructuring

The Energy Competition Act, 1998 was enacted by the Legislative Assembly of Ontario in 1998, which:

Operations under Ontario Hydro ended on March 31, 1999. By law, its assets and responsibilities were transferred to two commercial successors—Ontario Power Generation Inc. and Ontario Hydro Services Company Inc.—alongside two non-profit organizations: the Independent Electricity Market Operator and the Electrical Safety Authority.

Stranded debt

As of March 31, 1999, Ontario Hydro reported long-term liabilities totaling $26.2 billion against assets valued at $39.6 billion.

Nevertheless, the actual market value of these assets was significantly lower than reported, creating stranded debt amounting to $19.5 billion—the gap between asset fair value and total debt/liabilities assigned to successor entities. This stranded debt was established to maintain the financial stability of these new organizations.

Since 2002, repayment of this stranded debt has been funded through a Debt Retirement Charge imposed on Ontario electricity consumers. This fee is set at 0.7 cents per kilowatt-hour (kWh) used.

By March 31, 2014, outstanding stranded debt had decreased to $2.6 billion. Beginning in 2016, the Ontario government eliminated the Debt Retirement Charge from residential electricity bills and completed its phase-out for all customers by April 1, 2018.

Further reading

  • (Business History, Section 14)


See also

External links

  1. ↑ changing the Power Commission Act to the Power Corporation Act
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