Combined solar container of pumped water and compressed air

Driven by solar heliostat technology, the proposed system uses microbial electrolysis cells (MEC) to produce hydrogen and pumped hydro and compressed air for storing surplus power. Researchers have designed a novel multigeneration energy system that provides five outputs, namely electricity, hydrogen, cooling, heating, and hot water. This system can be used in a subsurface land-based system or a submerged water-based system. Compressed air storage technology may become an efficient solution of storing energy generated by large solar plants.