The system is built in the same town as Kuang-Yi stock farm. The system is built on the roof of pig farm. In order to prevent the swamp gas, the framework was coated with HAMAK anode 15μm and acrylic paint 10μm as anti-corrosive treatment. It’s built right after the typhoon season. In the project, the national top quality of high efficiency NSP Power mono-crystalline module 315W was applied to match with the inverter produced by Delta Electronics; also, the framework structure was calculated and confirmed with the safety validation of structural engineer.