As China delivering on the promise on energy transition, its photovoltaics(PV) market has become the biggest in the world, the total installed PV capacity has reached 180 GW. However, to meet the goal on 20% of total energy consumption from renewable sources, PV potential is appealing to continue release. Currently, PV deployment in China mainly focuses on residential rooftop PV systems and utility-scale PV plants, and is somehow stuck by curtailment. Distributed PV system for industrial users that has have many advantages is promising to achieve completely consumption onsite yet is still lack of investigation. Here, we present an assessment on the potential PV accommodation capacity in China’s power plants by using abundant real data from power plants and geographic information system(GIS). The results show the accommodation capability of PV is 31.30 GW in power generation sector, or 3.73×1010 kWh for auxiliary power demand and is able to reduce 5.81×107 tons of CO2 and 9.70×103 tons of PM2.5 annually.