The purpose of the program is the energy upgrade of buildings and non-building facilities of existing enterprises - very small, small, medium, large and very large - in the Greek Territory, which operate in eligible Activity Code Numbers (ACNs) from the sectors of trade, services, catering, production of bakery products and confectionery, as well as tourism, with the aim of saving energy in the tertiary sector (trade and services and the tourism sector), reducing pollutant emissions that contribute to the worsening of the greenhouse effect and achieving a cleaner environment.