Population saviour as 'people's turbine' set to make £200k a year Westray's turbine cost £1.6 million, with £761,000 coming from the Big Lottery Fund and the rest from community funds and a loan from the sustainable bank, Triodos. Will Ferguson, communications officer with Triodos Bank said the attractions of such schemes are financial, environmental and social. "The beauty of it is that it's sustainable financially as well as environmentally, while helping to keep the lifeblood of the community, its people, there," he said. Financially sustainable according to the bank expert, who could doubt it?