Genesee
The Genesee Power Plant originally consisted of 2 coal fired steam turbo-generators of 400 MW each and one super-critical 466 MW unit. Genesee Unit 2 (G2) was the first unit to be completed and was commissioned in Oct. 1989, with a gross capacity of 410 megawatts (MW). Genesee Unit 1 (G1) was commissioned in May 1994 with an identical gross capacity of 410 MW. Unit 3 (G3) was commissioned in March 2005 with a gross generating capacity of 495MW. Although coal is cheap, easily recovered and plentiful in the Wabamun area, concerns over GHG (GreenHouse Gas) emissions have forced a conversion to natural gas which began in 2021.
The Unit 1 & Unit 2 conversion project involved installing a new Mitsubishi M501JAC gas-fired combustion turbine and a Vogt triple-pressure heat recovery steam generator on each unit, now labelled GNR1 & GNR2. The captured exhaust gas from the combustion turbine is sent to the steam generator, heating the process water and converting it to steam which is then directed to the blades of the steam turbine, spinning the legacy GEC 400MW generators, which, combined with the output of the gas turbine results in a total maximim capability of 466 net MW from each unit.
Unit 3 was converted to a 60/40 ratio of coal to natural gas in spring 2021 and subsequently converted to 100% gas firing in 2023 with a maximium continuous rating of 466MW (net). On June 18, 2024, Capital Power announced that all units are now 100% natural gas-fueled, five years ahead of the Alberta government mandate for the phaseout of coal power. This marked the end of over 130 years of coal fired electricity generation in Alberta.
