Nuclear Safety Commission) released a report finding that the Darlington new build project would not result in any significant adverse environmental impacts (after taking into account mitigation measures). Following the report, the federal government approved the Environmental Assessment. In October 2013, the Ontario government declared that the Darlington new build project would not be a part of Ontario's long term energy plan, citing the high capital cost estimates and energy surplus in the province at the time of the announcement. In November 2020, Ontario Power Generation (OPG) announced plans to build a small modular reactor (SMR) at Darlington Nuclear Generating Station. It is expected to be operational by 2028 at the earliest. OPG will work with GE Hitachi Nuclear Canada to build the SMR. On December 2nd, 2022, Ontario Power Generation officially broke ground on the new build Darlington SMR (Darlington B) project. The first unit to be constructed is a GE BWRX-300 unit, expected to be operational by 2028. Waste Low and intermediate level waste from Darlington is stored at the Western Waste Management Facility (WWMF) at the Bruce nuclear site near Kincardine, Ontario. OPG has proposed the construction and operation of a deep geologic repository for the long-term storage of this low and intermediate level waste on lands adjacent to WWMF. On May 6, 2015 the Joint Review Panel issued the Environmental Assessment (EA) Report recommending the approval of the Deep Geologic Repository for Ontario’s low and intermediate level waste to the federal government. In February 2016, the Federal Minister of Environment and Climate Change delayed a decision on OPG’s DGR, causing a pause in the timeline for the environmental assessment decision to be issued. OPG has since committed to completing further DGR studies by the end of 2016. The Darlington Waste Management Facility provides dry storage for the used fuel from Darlington, after an initial period in a water-filled storage bay. The facility was opened in 2007, reportedly on schedule and on budget. The Nuclear Waste Management Organization is seeking a site in Canada for a permanent repository for used fuel from all of Canada's nuclear reactors. Records 2020: On Tuesday, September 15 Darlington Unit 1 broke the world record for continuous generation at 963 days, a record previous held by Pickering Unit 7 at 894 days for 22 years until it was broken in 2016 by Heysham 2 in the UK. As of September 28, 2020,