Renewable energy
In autumn 2008 we of the’Peretti Farmhouse We have remediated the 730 sqm Eternit roof of our stable and replaced it with a new Aluzinc roof. On the south-facing part of the roof, we have installed a photovoltaic system with 108 Unisolar triple-junction amorphous silicon panels, each producing 136 W, for a total of 14.14 kW.
The plant has been connected to the electricity grid since 30 December 2008 and in the first year produced approximately 19,000 kWh, avoiding around 8,900 kg/year of carbon dioxide and 5.80 kg/year of nitrogen oxide.
At the end of 2009, we also installed a Tatano biomass boiler, the Kalorina BK35PV with 29,000 Kcal/h, for the production of domestic hot water and for heating our home, the 5 bedrooms and an apartment. This boiler is fuelled by wood (our own production) and by olive kernel (ground olive pits, a waste product from olive presses) mixed with corn in a 2:1 ratio. These fuels are local or nearly local and are purchased in bulk, also saving on packaging.
At the beginning of 2011, in the three bathrooms of the rooms that do not have a window, we installed skylights... in order to utilise natural light during the day, saving energy.
