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China’s clean power waste continues to drop

By Chen Lidan (People's Daily Online)    16:55, June 07, 2017

The curtailment rates of both wind and solar power continue to drop this year, a result of enhanced efforts to increase the efficient use of renewable power, according to the largest utility company in China.

In recent years, China has been investing more than any other country in wind and solar power, but the mismatch between power generation and utilization has proven problematic for China. The northwest and northeast of China, home to the most wind turbines and solar farms, are the areas most prone to curtailment.

China’s wind installations reached 23,328 MW in 2016, lower than last year. This is partly because the nation’s power grid was unable to handle the volume of new wind capacity, the Global Wind Energy Council pointed out in its annual market report, released in February.

That problem has eased some this year, according to several international clean energy organizations. State Grid cites curtailment rates of wind and solar power being cut by 7.2 percent and 5.3 percent to 16.5 percent and 9.2 percent respectively in the first four months of 2017. From beginning of this year, the company has taken action to guarantee renewable power feed-in, said Zhang Zhengling, deputy director of State Grid's Development Department.

Wind- and solar-generated electricity is given a higher priority than the more dominant coal power in terms of both generation and transmission. A tentative cross-province market has also been established for the trade of unused power, Zhang elaborated.

More work is still necessary to reduce the waste of green power, including investing less in coal-fired power and more in ultra-high-voltage transmission lines and grid integration updates. If these measures are implemented, the level of curtailment will likely be 5 percent by 2020, according to State Grid.

(For the latest China news, Please follow People's Daily on Twitter and Facebook)(Web editor: Chen Lidan, Bianji)

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