Nuclear Power's Role in Renewables System Questioned
Nuclear power's role in a renewable energy system is under scrutiny. Statements about reactors' ramping capability vary, even among supporters. The French fleet's output reduction, though swift, is insufficient for significant wind and solar integration.
French reactors can reduce output by a third in under 30 minutes. However, this cannot happen simultaneously across the fleet. Only two-thirds of the fleet can operate in load-following mode at a time, limiting flexibility. Ramping is crucial in a system with renewables, as seen in Germany where fossil plants do most of the ramping to accommodate 20% wind and solar. Germany's Brokdorf reactor experienced damage due to limited ramping in 2016, highlighting potential issues. A reduction in nuclear power by a third could block wind and solar integration, as fossil plants already ramp more to accommodate renewables.
Nuclear power's role in a renewable energy system is uncertain. While French reactors can reduce output swiftly, fleet-wide ramping is unclear. Existing reactors may struggle to integrate significant shares of wind and solar, as fossil plants currently handle most ramping in Germany. Further research and advancements may be needed to ensure nuclear power's compatibility with a high renewable energy system.
