We buy our electricity on a green tariff from Good Energy, who buy only from renewable sources. They've just written to say they have put the price up, reflecting changes in the wholesale market... or something - there is a bit of gobbledegook about how the market works and how the price increase is nothing to do with them (and there's me thinking there's a direct wire from their windmill to my house).
The letter ends with a splendid piece of rhetoric: 'We hope that increases in price, although unwelcome, will have a positive outcome by helping households across the UK to treat electricity as the precious resource it is and to use it wisely'.
Perhaps they should have gone the whole hog, and entitled the letter: Great news! Electricity prices have gone up!