Mactaquac Hydroelectric Power Plant | New Brunswick, Canada

Mactaquac is a hydroelectric power plant located on the Saint John River in New Brunswick, Canada. With a capacity of 668 MW, it is one of the largest hydroelectric facilities in the province, playing a significant role in the region's renewable energy portfolio. The plant is operated by NB Power and has been in service since the 1960s. The facility operates as a run-of-river hydroelectric plant, utilizing the flow of the Saint John River to generate electricity. Its technology includes a concrete gravity dam and a powerhouse equipped with multiple turbine-generator units. The plant's capacity places it in the large-scale category for hydroelectric power generation in Canada. Mactaquac provides clean, renewable energy to the New Brunswick grid, reducing reliance on fossil fuels and contributing to the province's climate goals. The plant also supports local economic development and provides recreational opportunities at the Mactaquac Provincial Park. Its operation is subject to Canadian environmental regulations and water management policies.

Hydroelectric power generation at Mactaquac involves minimal direct emissions compared to fossil fuel plants, but it can affect local aquatic ecosystems and river flow patterns. The facility is located in a forested region of New Brunswick, with the Saint John River supporting diverse fish populations. Operations are managed to balance power generation with environmental stewardship, including fish passage measures and flow management to mitigate ecological impacts.