Look closely at Chinaâs solar power market and you might come across something a little, well, fishy. Fish farm solar plants represent almost 9% of the 135.7 gigawatts of sun-power capacity installed across the country, according to BloombergNEFâs database. And, no, these arenât pools of cod with photovoltaic fins. Many are banks of floating or fixed solar panels positioned over water where fish are farmed. Workers at a solar farm outside Yueyang City on July 2.