It's not a good day to be a green or a crony capitalist: the government has announced its proposals on feed-in-tariffs and it makes pretty ugly reading for all those who feed at the trough of government subsidies.
The headline news is that rooftop solar subsidies are going to be slashed from 12.6p to a token 1.6p per kWh. All those claims that solar is close to being cost-competitive with traditional forms of electricity are therefore now going to be given a fairly rigorous testing. If the claims are true then we can look forward to solar panels spreading to every rooftop.
And if they are not, it will mean the end of all those cold calls.
[Updated to reflect that these are proposals rather than commitments]