The increasing demand for quality energy supply coupled with the need to develop alternative energies with a reduced impact on the environment are some of the driving forces behind the development and progress of this sector. Accredited conformity assessment services have accompanied this development by responding to its needs. A considerable number of accredited testing, inspection and certification services now create confidence among public authorities, business and consumers in the safety and quality of the generation, transmission, distribution and marketing of energy both from non-renewable (coal, oil, natural gas and nuclear) and renewable sources (wind, solar, biomass, etc.).

ESYD accredits according to the standards ISO 17021-1 and ISO 50003 Certification Bodies of Management Systems, which provide certification services in the standard ISO 50001 Energy Management Systems – Requirements and instructions for use.