Vattenfall Wins 1,800 MW in Danish Offshore Wind Auction

Vattenfall AB won offshore wind projects totalling 1,800 MW in Denmark's offshore wind auction, taking two sites in separate seas with permits running 30 years.

The awards cover Hesseloe and North Sea I Mid, which strengthen a Danish offshore portfolio of roughly 1.5 GW. Hesseloe sits in the Kattegat between Denmark and Sweden, about 30 km from the coast, with a minimum capacity of 800 MW. North Sea I Mid lies in the North Sea about 20 km offshore near Hvide Sande, with a minimum capacity of 1,000 MW.

Grid connection is reserved for both projects, with the connection point about 50 km inland. That places the transmission burden on a defined onshore route rather than leaving interconnection unresolved at award, a structural detail developers weigh when bidding into capacity that must reach load centres.

The permit term runs 30 years, extendable by a further 10 years. A 40-year outer horizon changes how a bidder amortises capital against turbine replacement and repowering assumptions.

David Flood, head of Vattenfall's offshore wind unit, framed the awards around cost discipline rather than volume, saying such projects show how the company is expanding offshore wind while focusing strongly on affordability and long-term value. Flood is cited as head of the offshore wind unit in a statement on expanding offshore wind in Europe.

Affordability language at the point of award is the part global developers will read. Offshore wind bidders in the United Kingdom, the United States and across Asia have spent recent auction rounds arguing that cost inflation forces higher strike prices or outright withdrawal. A winning bid framed on affordability and long-term value, at 1,800 MW across two sites, sets a reference point for what a large European incumbent judges bankable.

Vattenfall currently operates five offshore wind farms in Denmark producing about 6.5 TWh of electricity a year, equivalent to the consumption of roughly 1.5 million households. The two new sites therefore build on an installed base rather than opening a new market for the company, which lowers the development, supply chain and operations risk carried in the bid.

In Finland, Vattenfall is developing an industrial-scale offshore wind farm at Korsnaes near Vaasa in cooperation with Metsahallitus. The planned capacity is 1.3 to 2.5 GW, with expected output of 5 to 7 TWh of fossil-free electricity a year. That annual production corresponds to the consumption of more than two million apartments or more than 350,000 electrically heated single-family homes.

The Finnish project supports Finland's target of carbon neutrality by 2035 and is intended to improve the country's energy self-sufficiency. At the upper end of its range, Korsnaes alone would exceed the combined minimum capacity of the two Danish awards.

The two auctions describe different stages of the same portfolio. Denmark delivers permitted capacity with reserved grid access and a defined 30-year term. Finland offers scale, with a capacity band wide enough that the final configuration remains open.

For developers pricing offshore projects outside Europe, the specifics that matter are the reserved connection, the permit length, and the fact that a bidder with five operating Danish wind farms judged 1,800 MW worth taking on affordability grounds.