The government-linked think tank also said China was expected to produce 90,000 tonnes of polysilicon this year, representing 80 percent of its domestic demand.
The solar feed-in tariff, the price of solar-generated electricity, could drop below 0.80 yuan (12.5 cents) for each kilowatt-hour (kWh) by 2015, which would be on par with conventional coal-fired power tariffs by that time, the body said.
As the world’s top energy user, China has revved up its efforts to develop clean energy and reduce its dependence on coal and other fossil fuels.
Earlier this month the NDRC set unified benchmark grid feed-in power tariffs for solar tariffs.
The rates, set at 1 yuan for each kWh, were higher than many of those that were proposed and accepted by state-owned solar-power developers in China's previous official tenders, which ranged from 0.73 to 0.99 yuan for each kWh last year.
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