Featrues 1. Integrated MPPT charge controller. 2. Equalization charging function. 3. Work with battery or without battery. 4. Maximum PV input voltage up to 450VDC. 5. Configurable grid or solar input priority. 6. Optional WIFI/ GPRS remote monitoring. 7. Support parallel operation for capacity expansion up to 30kW. 8. PV and Grid power the load jointly if PV energy unsufficient. 9. Flexibly schedule the Inverter charging and discharging time.