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>) has signed a deal to acquire 88% of UK power network operator Electricity North West (ENW) for an equity value of GBP 2.1 billion (USD 2.7bn/EUR 2.5bn) in line with its strategy to invest in electricity networks and countries with strong credit ratings.