Applied Energy ( IF 11.2 ) Pub Date : 2020-03-21 , DOI: 10.1016/j.apenergy.2020.114571 Wolf-Peter Schill , Alexander Zerrahn
Using electricity for heating can contribute to decarbonization and provide flexibility to integrate variable renewable energy. We analyze the case of electric storage heaters in German 2030 scenarios with an open-source electricity sector model. We find that flexible electric heaters generally increase the use of generation technologies with low variable costs, which are not necessarily renewables. Yet making customary night-time storage heaters temporally more flexible offers only moderate benefits because renewable availability during daytime is limited in the heating season. Respective investment costs accordingly have to be very low in order to realize total system cost benefits. As storage heaters feature only short-term heat storage, they also cannot reconcile the seasonal mismatch of heat demand in winter and high renewable availability in summer. Future research should evaluate the benefits of longer-term heat storage.
中文翻译:
在可再生能源市场中灵活地用电取暖
用电加热可以促进脱碳,并提供灵活的方式来整合可变的可再生能源。我们使用开源电力部门模型分析了德国2030年情景中的蓄热器情况。我们发现,柔性电加热器通常以较低的可变成本来增加发电技术的使用,而这些技术不一定是可再生的。然而,使常规的夜间存储加热器在时间上更灵活仅提供了适度的好处,因为白天的可再生能源在供暖季节受到限制。因此,相应的投资成本必须非常低,以实现总的系统成本收益。由于储藏加热器仅具有短期储热功能,他们也无法调和冬季热量需求和夏季夏季可再生能源利用率高的季节性不匹配问题。未来的研究应该评估长期储热的好处。