Unlike traditional grids, solar requires storage to address intermittency – especially critical for: "Storage isn't optional – it's what makes solar truly work after sunset. " – Renewable Energy Analyst, La Paz. As Bolivia aims to increase its reliance on renewable energy sources, such as solar and wind power, the need for efficient and reliable energy storage solutions becomes increasingly important. This is due to the intermittent nature of renewable energy generation, which can lead to fluctuations in. . r continuous and uninterrupted power flow. Various types of ESS are using in modern power system, such as compressed air energy storage (CAES), pumped hydro storage (PH ), flywheel storage (FS), BESS, an conventional and renewable energy systems. Pathway to a fully sustainable energy system for Bolivia across. These simulation results suggest that a fully. .