The cost per MW of a BESS is set by a number of factors, including battery chemistry, installation complexity, balance of system (BOS) materials, and government incentives. The 125kVA / 241kWh BESS battery energy storage system is designed for commercial and industrial users requiring higher energy capacity, longer discharge duration, and enhanced peak-shaving performance. Built on a mature industrial-grade inverter platform and integrated with GSL ENERGY's. The ESS-261-2H-L is KonkaEnergy's premier, newly developed C&I (Commercial & Industrial) energy storage solution designed specifically for grid-connected applications. Lithium-ion (NMC/LFP) utility-scale systems: $0. Leveraging our suite of products and our advanced design and manufacturing capabilities, our modular BESS.