I was reading through the engineers news paper today and found an article about home generation. Not the usual portable generator, but micro co generation plants. In short, someone figured out you could put a generator on the boiler. The efficiency is horrible, 10-20%, but the tax man can't reach you. Yet.
The leading company at the moment appears to be
WhisperGen in Christchurch, NZ who just began commercial sales in the UK.
1200W of power isn't very much, but it would still take a lot of load off the grid if all homes had something like this.
Has anyone heard about this before?