Bank lending over fossil fuel miners and generators has reduced, and continues to fall, with major banks forcing select customers to seek finance elsewhere.A couple of major bank chief executives delved into the topic at yesterday's periodic hearings of the House of Representatives Standing Committee on Economics.In essence, CBA's Ian Narev and ANZ's Shayne Elliott reinforced analysis from the public sector financier, CEFC, that coal assets, at least, are no longer 'bankable"."New fossil fuel assets in Australia would be unlikely to find finance at an acceptable cost," the Clean Energy Finance Corporation said in a submission to the Independent Review into the Future Security of the National Electricity Market - commonly referred to as the Finkel Review.Coal, at least, is less of an acceptable credit to two big banks."There have been loans we decided not to take or to not renew, as they do not meet our policies," Ian Narev, managing director of Commonwealth Bank said yesterday, responding to an inevitable series of questions on the theme from Greens MP Adam Bandt.Shayne Elliott, from ANZ, told MPs "our exposure to coal today is much less than it used to be; A$1.5 billion. It's been coming down, it'll keep coming down over time."The CEFC, in its submission for the Finkel review wrote that "while the range of cost estimates for new coal-fired generation capacity are broadly comparable with new renewable energy capacity (excluding any cost for carbon emissions), negative investor perceptions mean that new investment in coal-fired capacity would be unlikely to be financed by Australian or international capital markets. "Investors perceive that new fossil-fuel generation capacity has carbon risk, which is the risk that a new asset would be stranded if a future government were to adopt tighter emissions constraints. Further, there is arguably no longer a social licence for new coal-fired power stations in Australia."Market Forces, one monitor of Australian bank lending to the out of fashion fossil fuel sector, this week shared updated research which at a glance is inconsistent with the answers given by Narev and Elliott to MPs.Market Forces, an associate of Friends of the Earth, put CBA's fossil fuel lending in 2016 at $3.9 billion, compared with $850 million for renewables.For ANZ, Market Forces estimated fossil fuel lending at $3.3 billion, around 15 times the level of lending for renewables.Narev had data that might surprise Market Forces."Our exposure to renewables is about five times our exposure to coal," the CBA CEO said.