The Ontario Ministry of Energy is responsible for establishing government policy that creates an energy conservation culture while ensuring a reliable, sustainable and diverse supply of energy with minimal impact on the province's environment. The ministry develops all aspects of energy policy for Ontario, including electricity, natural gas, oil and renewable energy.

The ministry also sets the legislative and policy framework for the safe and reliable supply and delivery of electricity and natural gas and oversees three energy agencies: 

• the Ontario Power Authority
• the Ontario Energy Board
• the Independent Electricity System Operator.

The ministry represents the government of Ontario in dealings with Hydro One (a provincially owned electricity transmission and distribution company) and Ontario Power Generation (a provincially owned electricity generation company). 

With respect to the FIT and microFIT Programs, the ministry is responsible for:

• the Renewable Energy Facilitation Office
• setting rules on required domestic content for renewable energy projects
• creating incentives for the development of Aboriginal projects and community-based projects, helping to make it possible for these groups to participate in Ontario's renewable energy market.

The Ministry of the Environment and the Ministry of Natural Resources are responsible for the new renewable energy approval to connect renewable energy projects to the grid more efficiently and quickly. The renewable energy approval consolidates previous provincial and municipal approval processes under a number of pieces of legislation, including the Environmental Protection Act, the Ontario Water Resources Act and the Planning Act.