ECA has been a driving force in the electrotechnical and engineering services industry since the Association's formation in 1901. ECA continues to work on improving standards, supporting the industry and creating a sustainable business environment. Founded in 1901, ECA was established to represent the interests of contractors who designed, installed, inspected, tested and maintained electrical and electronic equipment and services. ECA was officially incorporated on the 19th April 1916. ECA played a particularly important part in the 1920s and 1930s when electric power was introduced to most houses. Before this time, and the formation of the National Grid, electricity was supplied at different voltages and frequencies.