The rules governing banks — not just the macroeconomic forces underpinning them — are markedly different from several years ago, claims Dominik Thumfart, managing director of the renewables unit at Deutsche Bank Asset Finance & Leasing.

Basel 3, a set of global rules agreed in the wake of the financial crisis that imposes higher capital requirements on banks, “will have a significant impact on the ability and willingness of banks to lend into transactions, including renewables”, says Thumfart.

“There’s