Talking to The Guardian about the new Glastonbury solar array, Eavis explained that the recent introduction of feed-in tariffs played a major role in making the project viable:
"He has been impressed by how easy it has been. The bank lent him most of the money and the government's feed-in tariff - a subsidy for small-scale renewable energy generation - has meant it makes economic sense to launch the project. He should earn £60,000 a year from the project.
Eavis's cow shed, which enjoys a fine view of the pyramid stage - skeletal at this time of year - and Glastonbury Tor in the far distance, now generates up to 200 kilowatts of power. It should also save around 100 tonnes of carbon a year. He expects to make the money he has invested back in nine years."
Massive forces of darkness may be lining up against solar in the UK, but at least the ever cheerful Michael Eavis is willing to keep fighting for the light.