Commonwealth Bank has "unlimited" appetite for lending to renewable energy, Fairfax Media reported over the weekend."Our appetite for lending to the renewables sector is unlimited and we are actively seeking to grow our portfolio, as long as they are good, viable, commercially-backable projects, and they are bankable," group executive for institutional banking and markets Kelly Bayer Rosmarin told a Trans-Tasman Business Circle lunch in Sydney.CBA has A$1.64 billion in business lending exposure to the renewable sector, Fairfax Media reported, and has financed 180 renewable projects, half of them in Australia. "Our exposure to renewables is significantly larger than our exposure to coal, and our exposure to coal has been reducing over the last ten years," Bayer Rosmarin said.