Most renewable energy solutions are intrinsically intermittent, following diurnal and weather conditions. In an operations like mines, even a brief disruption to the power supply can have enormous detrimental impacts. This makes energy security a paramount concern for operations, either in terms of health and safety or where there may be irreversible processes set in motion if energy is lost.
Battery energy storage systems (BESS) can offer increasing levels of support to address intermittency and risk by storing excess solar energy during sunny periods and discharging it when needed. Unlike thermal systems like diesel or heavy fuel oil that have thermal inertia and take time to start up, BESS offers instantaneous reaction to changes and can also provide frequency and voltage control.