Photon - Spanish solar project developer Iberdrola has signed a Power Purchase Agreement (PPA) with the food distribution company Uvesco Group (BM Supermarcados) for the supply of electricity produced from renewable sources on a long-term basis. All of the energy supplied will come from the 391 MW »Nuñez de Balboa« solar plant that Iberdrola will build in Usagre (Badajoz-Extremadura).