Ventilation and climate control account for most of the electricity consumption in a poultry farm. Constant temperature and excellent air quality are essential for the optimal development of birds, and need to be carefully controlled throughout the year. In a warm climate, like Spain’s, the summer season brings a considerable increase in electricity consumption – particularly at night, so that a reliable electricity supply is an absolute must. The good news for poultry farmers is that the hot season is also the time when their solar modules will generate most power. The real challenge is designing a system which supplies the farm’s energy needs 24 hours a day – plus contingency. This is the challenge that Cambio Energetico decided to take up for their client JAVEPA S.L. – a modern turkey farmer in Zamora with a 2480m2 unit under a thermal ‘sandwich’ construction roof.