本欧洲标准通过计算电力生产，有用热量产量和可收回损失来确定建筑一体化热电联产单位绩效评估的方法。这种单元通常被称为微型或小型热电联产，或微型或小型CHP。 建筑一体化热电联产是一个热电联产机组，用于提供建筑物内的空间供暖，家用热水和可能的冷却。它可以作为建筑物的唯一的加热/冷却设备，或者与其它发热器（例如锅炉或电冷却器）结合使用。与中央工厂产生热和电力并通过网络传输到多个偏远建筑物的区域供热系统不同，建筑一体化热电联产单元为建筑物内的用途产生有用的热量。综合热电联产单位生产的电力可以在建筑物内使用，也可以输出。 本标准涉及加热发热器或家用热水和供暖服务。 该计算基于在产品标准中定义的单元的性能特征以及所需热量输出等操作条件。 表1显示了该标准的相对位置

This European standard defines a method for the performance assessment of building-integrated cogeneration units by the calculation of the electricity production, useful heat output and recoverable losses. Such units are commonly known as micro or small scale cogeneration, or micro or small scale CHP. A building-integrated cogeneration, is a cogeneration unit installed to supply space heating, domestic hot water and possibly cooling within a building. It could operate as the only heating/cooling appliance of the building or in combination with other heat generators, such as boilers or electrical chillers. Unlike district heating systems, where heat and electricity are generated at central plants and transmitted through networks to a number of remote buildings, a building-integrated cogeneration unit produces useful heat for uses within the building. The electricity produced by the integrated cogeneration unit may be used within the building or may be exported. This standard deals with heat generators for heating or for combined domestic hot water and heating services. The calculation is based on the performance characteristics of the units, defined in product standards, and on operation conditions such the needed heat output. Table 1 shows the relative position of this standard within the set of EPB standards in the context of the modular structure as set out in prEN ISO 52000 1. NOTE 1 In prCEN ISO/TR 52000 2 the same table can be found, with, for each module, the numbers of the relevant EPB standards and accompanying technical reports that are published or in preparation. NOTE 2 The modules represent EPB standards, although one EPB standard may cover more than one module and one module may be covered by more than one EPB standard, for instance a simplified and a detailed method respectively. See also Clause 2 and Tables A.1 and B.1.