Babcock & Brown, the Australian infrastructure investor, is planning to sell its European wind farms in a deal that could be worth between €3.5bn ($5.5bn) and €4bn.

The group will say Monday that it has appointed Deutsche Bank and JPMorgan to sell its European wind energy assets and those owned by Babcock & Brown Wind Partners, its quoted wind energy fund. These include wind farms in Spain, Portugal, Germany, Italy and France.