Author(s): Zhongxin Luo, Xiaolin Luo and Xin Sui
Linked Author(s):
Keywords: Hydrolink;Pumped Storage; Renewable energy growth; Solar PV; Wind power; Variability and intermittency; Grid stability; Flexible power regulation; Pumped Storage Hydropower
Abstract:
According to the International Energy Agency (IEA), 95% of global electricity generation growth by 2025 will come from renewable energy, which is projected to surpass coal as the largest power source, supplying approximately one-third of global electricity. Solar PV and wind power are expected to account for 60% and 30%, respectively, of new renewable capacity additions. However, the inherent variability, randomness, and intermittency of wind and solar generation pose challenges to grid stability when integrated at scale, necessitating flexible power regulation and energy storage solutions. Pumped Storage Hydropower (PSH), currently the most technologically mature, reliable, and scalable energy storage method, plays a critical role in ensuring grid security and supporting the transition to renewable-dominated power systems.
Year: 2025