* Province sees wind power at 10 pct contribution in 2030
* Estimates power sector needs C${esc.dollar}87 bln over 20 years
* Plan to modernize nuclear power sites, add 2 reactors
TORONTO, Nov 23 (Reuters) - Ontario, Canada's most populous province, unveiled a 20-year power plan on Tuesday that relies heavily on conservation measures, but also expands the contribution of renewable electricity sources, especially wind energy, as it phases out coal-fired generators.
The long-term plan estimates the province's power generation mix in 2030 will be made up of 46 percent nuclear, 20 percent hydroelectric, 10 percent wind, 7 percent natural gas, 1.5 percent solar and 1.3 percent bioenergy.
The forecast energy mix comes after a 14 percent contribution from conservation, which the province regards as another resource.
By comparison, the province currently gets about 52 percent of its power from nuclear generators, 19 percent from hydro, 15 percent from gas and oil, coal 8 percent, wind 2 percent, bioenergy 1 percent and conservation 4 percent.
"We are seizing this opportunity to power the next century with clean energy," Ontario Energy Minister Brad Duguid said.
The province estimates that private and public capital investments totaling C${esc.dollar}87 billion (${esc.dollar}85.2 billion) will be needed to make the plan work over next 20 years.
The document also includes plans to modernize the Bruce and Darlington nuclear power plants and to bring online two new reactors at Darlington.
(${esc.dollar}1=${esc.dollar}1.02 Canadian) (Reporting by Claire Sibonney; writing by Nicole Mordant)
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