[摘　要]　引入节能、减排和经济收益与经济投资比值，即EnIR、EvIR和EcIR，用于排序优选节能措施，并在最终的节能改造方案评价中修正为EnIgR、EvIgR和EcIrR，因为政府享受节能减排收益而居民只考虑经济收益，且由于政府和居民分担经济投资，可在投资额度不变的情况下，扩大政府和居民的收益。最后以杭州某建筑为例，研究分析节能、减排和经济收益与经济投资比值的积极作用。研究结果有利于推动政府与居民“共同投资、分享利益”双赢模式的建立。

[关键词]　节能收益；减排收益；经济投资；共同投资；分享利益

Abstract: The ratios of Energy-saving, Environmental and Economic benefits to Investment cost（namely EnIR, EvIR and EcIR） are introduced to rank energy-conservation measures and to select the measures with higher cost-effectiveness for constituting the final plan, so limit investment capital could achieve more energy-saving and environment benefits; Secondly, in the evaluation of final plan, the Ratios are modified to EnIgR, EvIgR and EcIrR, because governments only could enjoy energy-saving benefit and environmental benefit while residents pay more attention on economic benefit, while share only partial investment cost but enjoy all economic benefit, but for co-investment both governments and residents could achieve more benefits without the change of their individual parts of investment cost. Finally, a case building in Hangzhou is employed to demonstrate the functions of the Ratios. The results should help to the development of Win-win model in which governments and residents “co-invest and co-benefit”.

Key words: energy-saving benefit; environmental benefit; investment cost; co-invest; co-benefit