THE energy company behind Walney offshore wind farm could be valued as highly as 106.5bn kroner (£10.9bn) when it floats on the Danish stock market.

The flotation is set to be Denmark's biggest public share sale in decades.

Dong plans to sell between 15.1 and 17.4 per cent of its existing shares in an initial public offer, with trading to start in the second week of June. The target share price of between 200 and 255 kroner values the company at between 83.5bn and 106.5bn kroner, it said.

Dong is working on an extension to Walney wind farm, which is due to be completed by 2019. The electricity output of the enlarged wind farm will be 660MW, enough to supply at least 460,000 homes.