I live in a listed house in a conservation area so solar is a no no. However in the Observer this weekend there was an article to say that a company had developed an affordable domestic combined heat and power boiler. When your central heating is on it uses the exhaust heat to generate power. This struck me as very practical (a bit like the wave and tide power mentioned in another thread). It would generate power all year round, independent of wind or sun and would be producing most power in the cold dark days of winter when most power is needed.
Things you find stressful that other people don't notice.
How do you acknowledge Easter.