Spanish utility Iberdrola SA (<a href="https://www.bolsasymercados.es/bme-exchange/es/Mercados-y-Cotizaciones/Acciones/Mercado-Continuo/Ficha/Iberdrola-ES0144580Y14" target="_blank">BME:IBE</a>) said on Wednesday it is launching a EUR-5-billion (USD-5.87bn) capital increase through an accelerated bookbuilding offering targeting qualified investors, to support an expanded investment programme focused on electricity networks.