1. Distributed generation and distribution utilities;Neil;Energy Policy,2002
2. The environomic analysis and optimization of energy systems;Frangopoulos,1993
3. Energy Conservation Design Standard for New Heating Residential Buildings. Industrial Standard of the People’s Republic of China, JGJ 26-95.
4. 8000 Square meter BCHP pilot project in China North Electric University. China energy source network. Available from: .
5. Broad Air Conditioning Co. Ltd. Available from: .