Spanish multi-energy major Repsol SA (<a href="https://www.bolsasymercados.es/bme-exchange/es/Mercados-y-Cotizaciones/Acciones/Mercado-Continuo/Ficha/Repsol-ES0173516115" target="_blank">BME:REP</a>) said on Tuesday it has agreed to sell a 46.3% stake in a portfolio of operational solar and battery storage assets in the United States to infrastructure investor Stonepeak for USD 340 million (EUR 297.9m), marking its first partnership in the country’s renewables market.