Spanish renewables firm Grenergy Renovables SA (<a href="https://www.bolsasymercados.es/bme-exchange/es/Mercados-y-Cotizaciones/Acciones/Mercado-Continuo/Ficha/Grenergy-ES0105079000" target="_blank">BME:GRE</a>) said on Wednesday it will invest EUR 3.5 billion (USD 3.96bn) through 2027 to expand its battery energy storage systems (BESS) and hybrid solar-plus-storage operations in Chile and Europe.