Ontario embraced nuclear power in the 1970s and 1980s, building 3 major nuclear facilities and 18 CANDU reactors, which in 2013 provided 59% of the province's electricity production, or kilowatt-hours equal to 65% of the electricity consumed within the province. The completion of the Darlington Nuclear Generating Station in 1993, "at a cost several times the original estimates", caused huge rate increases and a reassessment of Ontario's electricity policy. Three major policy documents, the Advisory Committee on Competition in Ontario's Electricity System (1996), chaired by former federal minister Donald Macdonald, a government White Paper on electricity policy (1997) and the Market Design Committee report (1999) paved the way for a major overhaul of the industry.