An analyst says a corporate decision to mothball Canada's largest carbon capture and storage project is likely the result of financial uncertainty and technological risks.

The Genesee power plant is currently being converted from coal fired to natural gas, the new turbines are also hydrogen ready when there's enough supply to make that switch.

Capital Power has once again delayed a final go-ahead on its new natural gas-fired power plant south of Edmonton because of continued uncertainty about Alberta's coal phase-out and power market.