Spanish renewables company Grenergy Renovables SA (<a href="https://www.bolsasymercados.es/bme-exchange/es/Mercados-y-Cotizaciones/Acciones/Mercado-Continuo/Ficha/Grenergy-Renovables-ES0105079000" target="_blank">BME:GRE</a>) said on Wednesday that it has signed a 15-year power purchase agreement (PPA) linked to the fourth phase of its USD-1.4-billion (EUR 1.28bn) Oasis de Atacama solar-plus-storage development in Chile.