This project comprises a DC-coupled photovoltaic plus energy storage system deployed in Bulgaria. It implements multiple energy management strategies, including self-generation for self-consumption, surplus electricity feed-in/off-grid, peak shaving and valley filling, and off-grid backup power. Gsl Energy Successfully Finished and Exported 100kwh 358v 300ah Lifepo4. The 100kwh high voltage lifepo4 lithium battery system is. The on-grid solar system price in Pakistan starts around PKR 80,000-PKR 100,000 per kW. Parameter 100kW/215kWh Equipment PCS (Power Conversion System), STS, MPPT,BMS (Battery. This 100kW/215kWh battery energy storage project in Bulgaria is designed to help a commercial or industrial user manage electricity costs under a dynamic pricing mechanism.