In the frame of CO-CLEAN Project, the Municipality of Racale carried out its pilot action which consisted in the installation of a photovoltaic system on the roof of the public swimming pool and connected to the public electricity network, capable of making the building much more efficient from an energy point of view. The new photovoltaic system allows the exploitation of renewable resources for the self-production of electricity, which will serve to partially cover the energy consumption of the structure. The intervention also envisaged the installation of an electrical storage system, capable of accumulating the energy produced in excess of the needs for self-consumption, and then returning it to the user when the solar system is inactive, for example during of low insolation, using the traditional electricity network only in case of emergency.

Particular attention was paid to the operating logic of the electricity absorption plant and to the real possibility of having large energy and economic savings through the exploitation and production of this energy vector on site through production from renewable sources (RES). This system makes it possible to use the energy stored in particular hours of the day when the scarce or absent solar radiation will not allow the self-production of quantities of electricity, such as to cover all the needs of the building.

The storage system consists of 16 high-performance 200 Ah batteries for photovoltaic systems. The goal is to exploit all the energy produced by the PV system, making the system autonomous and more efficient and is integrated with an intelligent wireless network that allows you to monitor the performance of the system at any time and to manage intelligent connected loads. The system is also monitored by means of wireless devices applied to electrical appliances (heat pumps, air conditioners, lighting, etc…) which allow, based on energy availability, to decide when and which loads to connect in order to reduce the use of the accumulation. The concept behind storage solutions consists in creating an energy buffer to better respond to the demands of the connected loads.