本文件提供了如何在实施前使用经济和财务评估对节能项目（ENSP）进行比较和优先排序的指南。它包括一套共同的原则。 本文件适用于利益相关者和组织为提高能源绩效而制定的所有ENSP和能源绩效改进行动（EPIAs），无论组织的类型和规模及其能源使用和消耗如何。 预测节能量的量化方法以及节能量的测量和验证（M&V）不在本文件的范围内。 请注意，在确定成本节约时，估算节能的方法至关重要。 本文件不包括未来节能措施和行动的情景生成（建筑）方法。本文档中的一般规则和方法可以独立使用，也可以与其他标准和协议结合使用。

This document gives guidelines for how to compare and prioritize energy saving projects (EnSPs) before implementation, using economic and financial evaluation. It includes a common set of principles. This document is applicable to all EnSPs and energy performance improvement actions (EPIAs) that are developed by stakeholders and organizations for improving energy performance, irrespective of the type and size of an organization and its energy use and consumption. The methodology for quantification methods for predicted energy savings and measurement and verification (M&V) of the energy savings are not in the scope of this document. NOTE The methodology for the estimation of the energy savings is critical when determining cost savings. The methodology of the scenario generation (building) for future energy saving measures and actions is not covered by this document. General rules and methodologies within this document can be used either independently or in conjunction with other standards and protocols.