2Engineering Sciences and Energy Management, Higher School of Technology, Ibn Zohr University, Agadir, 80000, Morocco
3Engineering and Applied Physics Research Team, Higher School of Technology of Beni Mellal, Sultan Moulay Slimane University, Beni Mellal, 23000, Morocco
Abstract
The share of renewable energy sources in the energy mix has become increasingly important for electricity generation in recent years. However, renewable energy sources have limitations; for example, they are not always available. An advanced adiabatic compressed air energy storage
system is proposed to address this problem and maintain the balance between energy demand - and production. When energy supply exceeds demand, it can be stored and released later when demand increases. This maintains a steady and uninterrupted electricity supply. The goal of this
paper is to cut costs, improve energy efficiency, and speed up system response time. The findings indicate that increasing the compression ratio from 2 to 10 reduces the efficiency of an adiabatic compressed-air energy-storage system from 71% to 24%. In addition, using volcanic rocks as
a storage material achieves high thermal storage efficiency, up to 85%.
