[7] In February 2023, it was announced that OPG would instead purchase the former head office building of General Motors Canada in Oshawa, Ontario, for their new headquarters, planning to open by 2024.

[citation needed] Other current members of the board include John Herron, Selma Lussenburg, Scott McDonald, Jill Pepall, Jim Reinsch, James Sheppard, Anju Virmani, Tracy Primeau and Mary Filipelli.

In July 2006, Liberal Energy Minister Dwight Duncan described OPG's turnaround as "[o]ne of the untold stories of the last two years".

[13] OPG regularly sponsors community events across the province and houses wildlife trails in the exclusion zones around its nuclear stations in Durham Region.

[17] The company is proposing to construct and operate a deep geologic repository (DGR) on the Bruce Nuclear site, adjacent to its present Western Waste Management Facility.

The repository would provide permanent storage of low- and intermediate-level radioactive waste produced from the operation of the Bruce, Pickering, and Darlington nuclear generating stations.

While the JRP had recommended to the federal government the project move forward based on the strong technical safety case, the Minister requested OPG provide further information.

OPG has also begun the process of building up to four new nuclear units at the site of its Darlington Nuclear Generating Station but in October 2013, the province of Ontario declared that the Darlington new build project would not be part of Ontario's long-term energy plan,[18] citing the high capital cost estimates and energy surplus in the province at the time of the announcement.

In January 2016, the province of Ontario approved plans[19] to pursue continued operation of the Pickering Nuclear Generating Station to 2024.

"It is a solid biomass fuel ... has higher energy density and is hydrophobic (repels water) allowing it withstand the elements while being stored outside," according to OPG.

[23] In March 2016, OPG and partners SunEdison Canadian Construction LP and Six Nations Development Corporation were selected by the Independent Electricity System Operator (IESO) to develop the Nanticoke Solar Facility, a 44 megawatt (MW) solar farm on and near the Nanticoke Generating Station site on Lake Erie.

The company also endured significant criticism concerning the slow return to operation of some of its nuclear generating stations which had been shut down by the Northeast blackout of 2003.

In late 2003, the incoming Liberal government fired the three most senior executives at OPG on the heels of a report that the retrofit of a single reactor at the Pickering nuclear plant had come in significantly over budget and three years behind schedule.

[citation needed] Due to the uproar over the large cost overruns and delays, an independent review committee was commissioned to examine the future role of OPG in the electricity sector; the future structure of OPG; the appropriate corporate governance and senior management structure; and the potential refurbishing of Pickering A Units 1, 2, and 3.

Unit 1 was returned to service in November 2005 providing 542 MW of generating capacity for Ontario's electricity system.

Subsequently, Ontario's Development and Mines Minister Michael Gravelle stated that OPG was seeking a local company to produce the biomass fuel.

[32] On 13 February 2023, OPG announced they completed a deal to purchase the former head office building for General Motors of Canada in Oshawa, Ontario, for their new headquarters, with plans to open in 2024.

[36] OPG owns and operates generating plants that draw from nuclear, hydro-electric, combined gas, biomass, solar and some wind.