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Gas power

Reliable operation of Ontario’s electricity system depends on continually balancing supply and demand in real time. Gas generation plays a critical role in maintaining reliability because it’s flexible and can be dispatched easily when it’s needed most.

Explore how gas-fired power works and the important role it plays in Ontario Power Generation’s energy mix.

Gas fleet

2,935 Megawatts

In-service generating capacity (Mar. 31, 2020)

1 Station

Dual-fuelled by oil and natural gas

1 Station

Fuelled by natural gas and operated by Atura Power

1 Station

Fuelled by natural gas and co-owned but not operated by OPG

OPG’s gas-fired combined cycle generating stations — Effective April 29, 2020, OPG’s subsidiary Atura Power is the operator of four natural gas-fired combined cycle generating stations in Ontario. The portfolio includes the 900 MW Napanee GS, the 683 MW Halton Hills GS, the 550 MW Portlands Energy Centre, and the 560MW Brighton Beach GS.

Fuelling system reliability

Closing our coal stations remains one of the world’s largest actions to combat climate change. In the absence of coal, gas-fired power generation stepped up to play the ever-important role of ensuring system reliability with its own unique set of benefits.

  • Flexibility — These stations can remain unfueled on standby for long periods of time yet be ready to quickly spring into action to help meet any spikes in Ontario’s energy demand.
  • Enabling renewables — Gas also helps enable other important renewable energy sources like wind and solar which are intermittent sources that require backup.
  • Regulating costs — Given its relatively low operating and fuel costs, gas power also helps keep electricity costs down for customers.

Our gas-fired generation