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>) has signed a deal to sell 390 GWh of solar power annually to an unnamed investment-grade global energy company in Chile, the Spanish renewables developer-operator said on Monday.