Energy efficiency evaluation and energy saving analysis of solar hot water projects in Guangxi

Evaluates the energy efficiency of solar hot water systems applied to 62 projects in 6 cities of Guangxi. Analyses the energy saving, emission reduction and economic benefit under the conditions of different cities, different buildings, different systems and different heat collectors. Obtains the relationship between energy saving and collector area. The result shows that there are good energy saving and emission reduction effects. The larger the collector area, the better the effect of energy saving. Moreover, the effect of the centralized solar hot water system is the best.