It's expected the Canadian province will connect more than 3,200 megawatts of renewable energy to its grid. With the addition, Ontario will have approximately 6,800 MW of total wind and solar energy generation by August 2014, the IESO said.
Among the planned projects for the renewable energy goals in Ontario are the province's first two transmission grid-connected solar projects.
"Integrating renewable resources into Ontario's changing supply mix has been a learning process for both us and the renewable generators," said Bruce Campbell, vice president of Resource Integration at IESO. "Everything we've learned will be applied in the coming months as wind and solar gain even more prominence on the grid."
While adding renewable energy generation, Ontario also plans to decrease its coal-fired generation from its energy mix. Two of the remaining generation units in Ontario are scheduled to stop burning coal by the end of the year, according to IESO.
The IESO also expects an overall decline in electricity consumption in Ontario over the next year, with demand falling by 0.9 percent in 2013.