Energy audits are used to identify opportunities for saving energy in order to optimise the provision and consumption of electricity and heat. At EU level, an energy audit is defined as “a systematic procedure with the purpose of obtaining adequate knowledge of the energy consumption profile of a building or group of buildings, an industrial or commercial operation or installation or a private or public service, identifying and quantifying cost-effective energy saving opportunities, and reporting the findings”.
In EU Member States, it is mandatory for large-scale enterprises to conduct energy audits at least every four years, unless the company has implemented an international or EU-wide certified energy or environmental management system. In 2012, European Standard EN 16247 was introduced throughout the EU to cover the workflow and scope of an energy audit.
Based on the results of the energy audit, appropriate measures can be identified and implemented to improve energy efficiency and also reduce energy costs. Such measures include, in particular, building renovation measures, the
replacement or modernisation of technical equipment and devices to use energy-efficient technologies, for example to heat buildings, heat water, provide cooling, manufacture goods, operate lighting and drivetrain technology or implement a company energy or environmental management system.