Different types of Battery Energy Storage Systems (BESS) includes lithium-ion, lead-acid, flow, sodium-ion, zinc-air, nickel-cadmium and solid-state batteries. Non-hydro gravity storage can hold on to energy for days, making it a suitable technology for grid balancing and supporting renewable integration. This technology doesn't use chemistry to store energy, so can have a longer storage life as there are no concerns with chemical degradation. Safe, simple, durable, flexible, and available, our commercially-proven, U. -manufactured battery technology overcomes the limitations of conventional lithium-ion in 4 to 16+ hour intraday.