Image credit: Iberdrola

Iberdrola, through its subsidiary SP Energy Networks, has awarded contracts worth over $3.8 billion (£3 billion / €3.5 billion) for the development of the Eastern Green Link 4 (EGL4) subsea electricity interconnector between Scotland and England.

The project is designed to strengthen the United Kingdom’s energy system, improving energy security, self-sufficiency, and cross-regional electricity transmission.

As part of the agreement, Siemens Energy will deliver two high-voltage direct current (HVDC) converter stations, enabling efficient long-distance electricity transmission at 525 kV. The link will span approximately 640 km, the majority of it subsea, before connecting to the onshore grid.

This follows a separate $2.5 billion (£2 billion / €2.3 billion) contract awarded to Prysmian for the supply of over 640 km of cable, including 530 km subsea and 116 km underground.

With a capacity of 2,000 MW, EGL4 will connect Fife in Scotland and Norfolk in England, delivering enough renewable electricity to power more than 1.5 million homes. Construction is expected to begin in 2028, with commissioning scheduled for 2033.

The project complements Eastern Green Link 1, another 2,000 MW interconnector currently under development.

Iberdrola plans to invest $15.2 billion (€14 billion) in UK transmission networks by 2031 and up to $21.7 billion (€20 billion) by 2028, supporting renewable integration and reducing reliance on fossil fuel imports.

Source: iberdrola.com