Quebec and Ontario will sign a seven-year trade deal regarding electricity on Friday.

Premier Philippe Couillard is Toronto in order to sign the deal at a joint cabinet meeting with Ontario Premier Kathleen Wynne.

Under the agreement, Hydro Quebec will provide electricity to Ontario using existing transmission lines.

Hydro Quebec has power lines that enter Ontario near Ottawa, and has been increasing water levels behind several dams in order to provide 500 gigawatt hours of electricity on demand.

Ontario will import up to two terawatt hours of electricity each year -- that's enough to power Kitchener, Ontario.

That means Ontario won't need to rely on natural gas-burning plants while the Darlington nuclear power station is refurbished.

It also means Ontario will save about $70 million while reducing greenhouse gas emissions.

The Ontario government has been under fire for dramatic increases in the price of electricity, while Hydro Quebec rate increases have been at or below the rate of inflation for many years.

Couillard and Wynne are also going to announce an agreement to expand the network of electric vehicle charging stations along the Windsor-Quebec City corridor.