Reducing Emissions through Natural Gas Innovation
We’re innovating thermal generation to reduce emissions, increase efficiency and deliver Responsible Energy for Tomorrow. In support of our net carbon neutral by 2050 goal, we’re repowering our Genesee facility to utilize 100% natural gas and move off-coal in 2023 – more than 6 years ahead of government mandate.
In 2020, we initiated plans and stakeholder engagement for the repowering of Genesee Units 1 & 2 to natural gas combined cycle (NGCC) generation units. Located entirely within the footprint of the existing Genesee Generating Station, the repowering project would involve installing new gas-fired combustion turbines and heat recovery steam generators, while utilizing the existing steam turbine generators. The two repowered units provide an additional 560 megawatts of net capacity totalling 1,360 MW. The repowered assets will utilize best in class, hydrogen-ready NGCC technology and are expected to set a new standard for gas generation efficiency in Canada. Based on the NGCC repowering project schedule, Genesee 1 would move directly to becoming a dedicated NGCC unit by 2023; Genesee Unit 2 would become a dedicated NGCC unit by 2024. Units will be converted to run in simple cycle mode before the expected completion of the repowering of each unit.
There are significant environmental benefits expected from the project, including reduction in emissions associated with coal-fired power generation such as carbon dioxide (CO2), sulfur dioxide (SO2), nitrogen oxide (NOx), particulate and mercury emissions. For example, the carbon emissions intensity of using natural gas as a fuel source will decrease CO2 by approximately 60% when compared to emissions when the units are running on coal. In addition, overall water usage for the repowered units will be reduced with the new technology by at least half.
In support of our efforts to move off-coal in 2023, Genesee Unit 3 will continue with dual-fuel upgrades to maximize fuel flexibility and expand the use of natural gas before moving to 100% natural gas in 2023.
Following repowering and dual-fuel upgrades, the Genesee facility will achieve significant environmental benefits including carbon dioxide emissions expected to be approximately 3.4 million tonnes per year lower than 2019 emission levels.
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