China-based developer Hangzhou Fengling Electricity Science Technology recently finished building a 120 MW solar plant on the surface of the Changhe and Zhouxiang reservoirs in Cixi, Zhejiang province. The array is the second phase of a 320 MW PV project, following the finalization of the first 200 MW phase in 2017.
Chinese inverter maker Shenzhen Kstar Science and Technology, which supplied its GSL2500C-MV and GSL1250 central inverters for the second phase, recently revealed several details about the plant in a short conversation with pv magazine.
â€śThe 320 MW plant has now an expected annual generation of 352 million KWH,â€ť said Tammy Tang, Kstar marketing manager. â€śThe annual revenue from the generated electricity for the owner of the plant is about $45 million, while the annual fishery income can reach nearly $5 million.â€ť
The plantâ€™s second phase, which is selling power at a rate of RMB0.95 ($0.12)/kWh, required an overall investment of around $100 million. Kstar said the provided inverters were specifically customized for power plants built on water and are able to work safely in wet environments. â€śThe inverters have protections against dirt and moisture,â€ť Tang added.
The developer is combining solar power generation with an aquaculture operation. â€śThe photovoltaic panels are set up above the water surface of the reservoir and the water area below the photovoltaic panel can be used for fish cultivation,â€ť Tang added. â€śFishermen can fish and row boats there.â€ť
She said the presence of the panels also helps to reduce water surface evaporation and save water resources, while also creating a better hatching environment for fish and increasing aquatic production. â€śThe PV power plant has a high-power generation efficiency and low operations and maintenance costs, as well as a minimal impact on the maritime life,â€ť Tang said.
A similar project 260 MW solar project was recently finalized by China General Nuclear Power Group (CGN). The plant is unsubsidized and sells power at RMB0.3844/kWh. The facility is located at a fishery in Dangtu county, Anhui province.