Ottawa Hydro Generating Station No. 2: A Hidden Gem

What is known about this historic facility? Why is it considered a valuable yet hidden landmark of Ottawa? Ottawa Name delves into the history, architectural significance, and environmental value of this federal heritage site.

History

Ottawa Hydro Generating Station No. 2 was constructed in 1891. The station comprises three distinct sections, each housing specific equipment and serving unique purposes:

  • Generator Hall: A long rectangular limestone structure, the heart of the station, designed to house powerful generators.
  • Penstock Housing: A low concrete platform connected to the generator hall’s south wall, containing the turbines.
  • Brick Wing: Situated in the building’s southwest corner, this section, built with red and yellow-brown brick, likely housed workshops, storage, and administrative offices.

The facility was built using high-quality materials, with skilled craftsmen ensuring durability and functionality.

Reconstruction

In 1908–1909, Ottawa Hydro Station No. 2 underwent significant structural and mechanical upgrades. It remains one of Canada’s oldest operating hydroelectric facilities.

Key features of its design include:

  • Stone Generator Hall: Reflecting the stone mill traditions of 19th-century Central Canada, the hall features a rectangular layout, uniform wall openings, and an expanded structure following renovations.
  • Concrete Penstock Housing: This section directly connects to the generator hall, housing the turbines.
  • Brick Wing: Highlighting the industrial nature of the station, this wing adds to the facility’s distinct character.

Located on Amelia Island, part of the Chaudière Islands, the station is part of a mixed-use industrial complex. Its continuous operation required frequent technological updates.

Historical Significance

The station is deeply intertwined with the evolution of hydroelectric power in Canada. It holds the distinction of being the oldest purpose-built and functioning hydroelectric facility in the country.

Its development reflects two key phases of E. G. Bronson’s energy empire:

  1. This was the first purpose-built hydroelectric station constructed by E. G. Bronson. Ottawa Hydro Generating Station No. 2 exemplified the Bronson family’s diversification of wealth originally derived from the timber industry. Interestingly, in the latter years of his career, Bronson worked towards establishing a monopoly in private utility services.
  2. The station also serves as a remarkable example of industrial diversification in the Chaudière Islands, waterfalls, and waterways during the late 19th and early 20th centuries. This period marked a significant transition from dependence on timber-based industries to the emergence of the area as a hub for electricity generation, pulp, and paper production.

The Facility’s Secretive Nature

Ottawa Hydro Generating Station No. 2 was designated a classified site due to its historical, functional, and environmental significance. Ensuring uninterrupted energy supply was critical to transportation, industry, and defense. In past eras, facilities using water resources were considered potential targets for sabotage, adding to the station’s classified status.

Doors Open Ottawa

The city’s Doors Open Ottawa initiative allows visitors to explore this historic hydroelectric station. Tours provide insights into its operation and feature educational exhibits on electrical safety and energy conservation. Notably, the station showcases the “High Line” model, created in 1964, to demonstrate electrical hazards through interactive scenarios.

Key Facts About Ottawa Hydro Generating Station No. 2

  • Commissioned in 1891: The station underwent renovations in 1908–1909 and a second reconstruction in 2001, introducing full automation.
  • Tours: Daily tours run from 10:00 AM to 4:00 PM, though parking on-site is limited.
  • Modern Addition: In 2019, a new 29 MW facility was completed at Chaudière Falls.
  • Green Energy Leader: Hydro Ottawa is Ontario’s largest municipal producer of green energy.

This historic station continues to play a pivotal role in Ottawa’s history, ensuring clean and reliable electricity for the community.

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