Vattenfall has secured a contract to develop the Nordsøen Midt (North Sea I Mid) and Hesselø offshore wind farms in Denmark’s recent tender.
The projects are set to be operational by 2032, boasting a combined capacity of at least 1.8 GW. This capacity can power over 1.8 million Danish and European households annually, according to the Danish Energy Agency.
Vattenfall states the Hesselø project, in the Kattegat Sea, will have a minimum installed capacity of 800 MW. The North Sea I Mid project, located about 20 km off Hvide Sande, will provide at least 1 GW. Grid connections are secured for both, with connection points around 50 km inland.
Vattenfall offered the lowest bids, securing a Contract for Difference (CfD) strike price of DKK 504 (EUR 67.60) per MWh for North Sea I Mid, and DKK 542 (EUR 72.70) per MWh for Hesselø. These prices are guaranteed for 20 years post-commissioning.
The Danish Energy Agency received two bids for North Sea I Mid and five for Hesselø. Vattenfall Vindkraft A/S was awarded the North Sea I Mid contract, while Vattenfall Vindkraft Offshore Wind DK P/S secured the Hesselø contract. The consent duration is 30 years, with a possible 10-year extension.
Formal verification, including documentation checks and adherence to procurement requirements, is pending before contract signing.
This tender marks Denmark’s first contract awards under its new offshore wind procurement framework. The previous 3 GW tender in 2024 did not attract bids, prompting the government to revamp their support scheme. The redesign includes two-sided CfDs with state aid and extended project timelines to improve investment conditions.
Launched in November 2025, this revised tender covers three offshore wind projects totaling 2.8 GW. While North Sea I Mid and Hesselø have been awarded, the 1 GW Nordsøen Syd (North Sea South) project remains open for bids, with submissions due by October 2028.
Original Story at www.offshorewind.biz