ISO/TC 205/WG 2 - Design of energy-efficient buildings

This document provides a basic step-by-step approach for achieving non-residential (net) zero-energy buildings (ZEBs). It also describes the basic concept of ZEBs and the items for consideration in this approach. The following are within the scope of this document: — application to non-residential buildings; — annual energy consumption of a ZEB (this includes the operating consumption of the building and excludes the energy consumed by the manufacturing of materials and equipment, and the energy consumed during construction); — renewable energy supply (this can be on-site or off-site, depending on the policy and conditions of the country in which the supply is installed); — application to any climate zone. The following are out of the scope of this document: — recommendations or suggestions for the adoption of any specific technologies and/or equipment and materials that are expected to be continuously innovated (however it does stipulate the technologies for selection); — specific methods or calculation formulae; — commissioning methods.

ISO/TR 16822:2016 lists testing and rating procedures for determining energy efficiency of heating, ventilating, and air conditioning equipment. It is applicable to space conditioning and water heating equipment. Testing and rating procedures are listed in two ways.

ISO 13153:2012 specifies a framework of the design process for energy-saving single-family residential and small commercial buildings, with the energy consumption ratio as the key criterion. It is intended to assist in the development of design guidelines for practitioners who design energy-related parts of buildings.

ISO 23045:2008 gives guidelines related to energy efficiency in buildings as introduced in ISO 16813. The objectives of ISO 23045:2008 are to assist designers and practitioners when collecting and providing the useful data that are required at different stages of the design process and to fulfil the definitions of the building as prepared by building designers. This International Standard applies to new buildings and is applicable to space air-conditioning equipment and the heating plant in new buildings.