HR Milner Generating Station

Milner 2

The Milner 2 (“M2”) power plant is a 204 MW state-of-the-art natural gas-fired turbine generator located at the HR Milner Generating Station site near Grande Cache, Alberta. The M2 unit was commissioned in Q2 2020 and is the largest simple cycle natural gas-fired power plant in Alberta.

Having previously procured the HRSG, the M2 unit is currently being converted to a Combined Cycle Gas Turbine (“CCGT”) unit which will increase the capacity to 300 MW and lower its operating costs significantly. The M2 CCGT will benefit from significant existing infrastructure at the brownfield site, including an existing steam turbine generator and the associated balance of plant.

Completion of the CCGT expansion of M2 will allow for the capture of waste heat that would otherwise exhaust into the atmosphere and turn it into useful low carbon electricity for the Alberta power grid. The CCGT expansion of M2 will reduce the intensity of carbon emissions by more than 60% compared to the legacy coal-fired H.R. Milner facility.

Milner 1

The original HR Milner Generating Station (“Milner 1” or “M1”), located near Grande Cache, Alberta, is a 150 MW dual fuel steam turbine generator capable of burning both natural gas and coal.

Milner 1 is currently being repowered as part of the M2 CCGT expansion project. The steam generated by waste heat and supplementary gas-firing from M2 will be sent to M1 to generate approximately 96 MW of incremental low-carbon power. The M2 CCGT expansion project has an estimated COD of Q4 2023.

Power produced from M2 and M1 is sold to the Alberta Electric System Operator (“AESO”).