With the integration of increased variable renewable energy generation and advent of liberalized electricity market, much attention has been devoted on the development of pumped hydro energy storage (PHES) as it has many prominent advantages of ensuring the safe and steady operation of power...

With policy encouragement and capital investments, China's wind power has been enjoying a tremendous development for years. China has now become a global leader in terms of wind power capacity, with a total of 52.58 gigawatts of wind power connected to power grid. However, the overwhelming...