Electricity generation from renewable energy in Germany is reducing power prices and has left the country with a market whose design no longer works, according to Stadtwerke Leipzig GmbH.
Renewable generation, such as wind and solar, receives support from the German government in the form of a feed-in- tariff, or FIT. Because there are no costs associated with the wind and sunshine, renewables have a generating margin of zero, as well as legally mandated priority access to the grid. As a result, fossil fuel-fired plants are generating for fewer hours and selling their power at cheaper prices, making them less profitable. “As long as renewables have zero margin costs, the market design we have doesn’t work,” Jens Teresniak, team manager for business development and market analysis at Stadtwerke Leipzig, said in an interview in Leipzig on June 21. “Capacity markets could be a solution.” So-called capacity markets allow utilities to fix prices for guaranteed backup power supply in advance, boosting margins for gas and coal electricity plants as renewables output rises. German policy makers are considering how to ensure there are enough round-the-clock plants to keep the lights on when nuclear reactors are phased out and renewables output falls short.
No comments:
Post a Comment