In 2006, the Ontario government directed Ontario Power Generation (OPG) to begin the planning and secure the approvals needed to build up to four additional reactors at the Darlington nuclear station. [...] This was done to address a significant increase in demand predicted by the OPA and the possible closure of the Pickering nuclear station.5 By 2010, the significant increase in electricity demand predicted by the OPA had failed to materialize. [...] The majority of embedded generation is solar power, and its output will increase to 1,700 MW by the end of 2014.14 The decline in electricity demand and increase in embedded generation eliminates the need for nuclear generation to replace the soon-to-be decommissioned reactors at Pickering. [...] In 2008, Moody’s Investors Service estimated the cost of new reactors to be around 15 cents per kWh.29 In 2011, the California Energy Commission estimated the cost of new reactors to range between 16 and 34 cents per kWh.30 In 2013, Toronto-based Power Advisory LLC estimated the cost of new reactors in Ontario to be 15 cents per kWh.31 Figure 3 shows how the cost estimates for building new reactor [...] The failure of the OPA’s 2005 demand forecast to materialize, combined with the increased commitment to inflexible baseload supply, is the root cause of the SBG situation the province has been experiencing.