With the aim of implementing energy-saving measures, backed by previous energy audits, it is proposed that a series of heat production thermal plants be adapted in hospitals and health centers under the Department of Universal Health and Public Health. _x000D_ These actions make it possible to optimise existing power plants to improve energy efficiency by installing high-performance equipment and adapting the thermal power plant as a whole to a main objective:increased efficiency and reduction of emissions of CO2 and other pollutants containing nitrogen and oxygen in various proportions (NOx).