Environmental protection contribution of rural renewable energy construction: a case study of North "Four in One" Energy model

How to calculate the contribution of rural renewable energy construction to environment is very important for environmental impact assessment(EIA) of the rural renewable energy construction. This paper takes the North "Four in One" Energy Style for example and is based on lots of investigation and researches, a calculating method of contribution of rural renewable energy construction to environment was given, and according to the method the contribution of North "Four in One" Energy Style to environment has been worked out.