Germany’s RWE (FWB: RWE) is to close up to one fifth of its gas-fired power capacity as low demand and surge in renewables have made the plants unprofitable.

The country’s second largest utility has decided to take 954 MW of gas-fuelled power offline until the end of 2014.

RWE will idle two gas turbines with a generation capacity of 272 MW each at its Weisweiler power plant from today until the end of 2014, according to the company’s website.

The utility will also mothball its 410 MW Gersteinwerk-F gas plant for all of next year, as well as another 410 MW gas unit at the Gersteinwerk-G site, which will be offline from April 1, 2014, until the end of that year, the company document shows.

RWE has put a total of 10,000 megawatts of generation capacity in Europe under observation for potential closure, Chief Executive Officer Peter Terium said in July. The company is scheduled to release its second-quarter earnings on August 14.

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