The governments of Germany and Denmark have reached an agreement to expand the capacity of Bornholm Energy Island, an offshore wind hub in the Danish part of the Baltic Sea.

Under the terms of the agreement, the energy island’s capacity will be increased from 2GW to 3GW to enable clean energy to be transferred to the German grid via a 470km underwater cable.

Danish Climate, Energy and Utilities Minister Dan Jørgensen said: “The agreement reinforces the already close Danish-German energy cooperation and literally strengthens our bonds by adding another electricity connection between our countries.

“The Energy Island is truly a landmark in energy history and comes at a time where international cooperation is more urgent than ever before.”

Bornholm Energy Island will supply enough clean energy to power nearly 4.5 million homes in Germany while increasing the electricity trade between the two countries.

The move is also expected to reduce their energy dependence on Russia.

Denmark and Germany will jointly develop the offshore wind hub and share both its cost and benefits as much as possible.

The two countries will also work together on possible future connections to the energy island, which is scheduled to come on line in 2030.

Bornholm Energy Island is part of Denmark’s plan to increase its offshore wind power production capacity fivefold by the end of the decade.

German Minister for Economic Affairs and Climate Action in Germany Robert Habeck said: “The cross-border energy cooperation project with Denmark is a flagship project.

“The green power from Bornholm Energy Island will supplement national power generation and reduce our dependence on fossil energy imports.

“With such projects among European partners, we achieve two key goals at the same time: European energy security and climate neutrality.”

Last month, Germany and the UK reached financial close on the NeuConnect project, which aims to create the first direct power link between the two countries.