As of recent data, the average cost of a BESS is approximately $400-$600 per kWh. SunArk Power has been developing quickly, till end of 2022, accumulatively, the company has manufactured 620MWh BESS and battery strings. Internationally, SunArk Power FlexCombo DC coupling microgrid ESS, from 50kW to 500kW, is a well-known trademark that more than 300 sets has been deployed in EU. They primarily sell to the Czech Republic, Nigeria, and Myanmar with a positive review rate of 100. 1200kWH Battery Capacity: Ideal for large-scale energy storage needs. Multiple Grid Options: Hybrid, Off Grid, On Grid compatibility. China Manufacturing: High-quality components and durable. EXW Price: US $0. What is a Turnkey Package of 2MWh Energy Storage System+1MW Solar Panels? A complete 2MWh energy storage system + 1MW solar turnkey solution includes the following configurations: Optional solar mounts, PV combiner boxes, and PV cables. This translates to around $150 - $420 per kWh, though in some markets, prices have dropped as low as $120 - $140 per kWh. Key Factors Influencing BESS.