It is intended to evaluate the environmental impact generated by the use of conventional energy in a hospital level 4, and the mitigation obtained with the implementation of a photovoltaic system. The above taking into account that, in order to guarantee compliance with health services, the institutions can use different conventional and some renewable energy sources from the country's electricity grid. In this study, the institution supplements its high daily energy demands using mains electricity and steam boilers. The latter contribute to worsen environmental health problems by emitting greenhouse gases (determined in tonnes of CO2 equivalent) daily into the environment. As a possible solution to the above problem, the specific and overall energy demands of the institution are analyzed. With this information, the carbon footprint, through ISO 14064-1, will be calculated over a period of one year, identifying the direct and indirect sources and their respective emissions. Subsequently, environmental management strategies were established to mitigate the carbon footprint generated. As a result, we identify and present in this article, the co-benefits for the implementation of a solar photovoltaic system, considering national and international regulations.