Thanks to SOLE, several energy requalification interventions on public buildings across the Mediterranean have been carried out: the annex building of the headquarters of the Andalusian Energy Agency, in Seville, Spain, was one among the pilot sites to benefit from SOLE and improve its energy performance.

The improvement actions that were carried out in the annex building of the Andalusian Energy Agency have focused on optimising energy consumption, through the thermal insulation of walls, floors and false ceilings. In addition, the doors and windows have been replaced to reinforce the thermal insulation, while improving the use of natural lighting.

The air conditioning has also been improved by optimising the heat recovery of the ventilation air and by applying free cooling according to the external conditions, ensuring minimal energy consumption and the users' comfort. 

A new installation with LED technology has been integrated into a centralised control system that allows the use of natural lighting and regulates the luminous flux according to the actual needs at all times.

In addition, a new solar photovoltaic installation has been set up to reduce the consumption of energy of non-renewable origin and will allow the annex building to have a high degree of self-consumption, since it also has batteries that allow to accumulate the surplus of energy.

Finally, two external electric charging points have been located in the parking area next to the building for 100 % renewable mobility with energy generated in the building itself.

With these actions, an energy saving of more than 50% is expected. These actions have involved an investment of 275.000 €, with 90% of the overall amount financed by the ENI CBC MED Programme.