The document summarizes the Deputación de Ourense's experience developing sustainable energy action plans (SEAPs) according to ISO 50001. It describes analyses of the province's public lighting and vehicle fleet that identified opportunities to reduce energy consumption and emissions. As a result of measures taken, CO2 emissions have been reduced by 16-25% in recent years. The methodology used to create baseline emissions inventories and SEAPs for 19 municipalities is also outlined. The training provided an overview of developing SEAPs integrated with energy management systems based on best practices from Ourense.