ISO 25745-2:2015规定了一种基于测量值、计算或模拟的能源消耗估算方法，该方法每年针对单台机组的牵引、液压和正驱动升降机，以及针对新的、现有的和现代化的牵引、液压和正驱动升降机的单台机组能源分类系统。 它适用于额定速度大于0.15 m/s的客梯和客货两用电梯，仅考虑电梯生命周期运行部分的能量性能。对于其他类型的电梯（例如服务电梯、升降平台等），可将其作为参考。 它不包括影响测量、计算和模拟的能源方面，例如:井道照明；轿厢内的加热和冷却设备；机房照明；机房供暖、通风和空调；非电梯显示系统、闭路电视安全摄像头等。 ; 非电梯监控系统（如楼宇管理系统等）；电梯群调度对能耗的影响；环境条件；通过电源插座消耗；其行程包括快速区的电梯（快速区不太可能影响平均轿厢负载，但会显著影响平均行程距离）。

ISO 25745-2:2015 specifies a method to estimate energy consumption based on measured values, calculation, or simulation, on an annual basis for traction, hydraulic and positive drive lifts on a single unit basis, and an energy classification system for new, existing, and modernized traction, hydraulic, and positive drive lifts on a single unit basis. It applies to passenger and goods passenger lifts with rated speeds greater than 0,15 m/s and only considers the energy performance during the operational portion of the life cycle of the lifts. For other types of lifts (e.g. service lifts, lifting platforms, etc.), it can be taken as a reference. It does not cover energy aspects, which affect the measurements, calculations, and simulations, such as the following: hoistway lighting; heating and cooling equipment in the lift car; machine room lighting; machine room heating, ventilation, and air conditioning; non-lift display systems, CCTV security cameras, etc.; non-lift monitoring systems (e.g. building management systems, etc.); effect of lift group dispatching on energy consumption; environmental conditions; consumption through the power sockets; lifts whose travel includes an express zone (an express zone is unlikely to affect the average car load but can significantly affect the average travel distance).