KKR and RWE are rich firms. Why do they need a UK state loan for their windfarms?

Summary

National wealth fund is to lend £1bn towards the Vanguard projects – but whether the private equity giant needed help is debatable “This major investment in UK renewables is a vote of confidence for building in Britain,” declared the prime minister. Andy Burnham is obviously correct that the two Vanguard windfarms off the coast of Norfolk are huge investments . Together, they require almost £13bn of debt financing. But he can’t claim they represent a fresh expression of confidence. The project has been on the runway since the German utility RWE, the developer, was awarded a contract to build…

Description from The Guardian.