Editorial for the Special Issue on Emerging Technology and Advanced Application of Energy Storage in Low-Carbon Power Systems

With the increasing concern about climate change, environmental pollution, and sustainable development, the energy system is evolving towards a low-carbon form powered by a large share of renewable energy. Renewable generation from wind and solar is intermittent and volatile, posing great challenges to the secure and economical operation of power systems which requires simultaneous balance between power demand and supply. In this regard, various energy storage, including battery, pumped storage, compressed-air storage, flywheel, supper-capacitor, etc., are recognized as indispensable technologies to deal with the intermittency from renewables and facilitate the low-carbon transition of power systems. Energy storage can be implemented in different parts of the power supply chain from generation-side to grid-side and demand-side, and can benefit the power system operation in multiple time scales from seasonal energy balance to near-real-time stability control.