Spanish power and gas utility Naturgy Energy Group SA (<a href="https://www.bolsasymercados.es/bme-exchange/es/Mercados-y-Cotizaciones/Acciones/Mercado-Continuo/Ficha/Naturgy-Energy-Group-ES0116870314" target="_blank">BME:NTGY</a>) on Wednesday reported a 5.6% year-on-year increase in first-half EBITDA from its renewables business, reaching EUR 322 million (USD 377.8m) on new installed capacity.