On Fri, 19 May 2006 22:29:00 +0100, David Hansen wrote:

On Fri, 19 May 2006 20:47:42 GMT someone who may be John Stumbles
wrote this:-

There are also issues of what to do with surplus electricity produced

In the UK the electricity output will largely tie up with maximum
demand, for example lighting demand is highest on winter nights when
central heating is also turned on.

IIRC the electrical output of a microCHP rig is in the order of kilowatts.
That's a lot of lighting, even without using low-energy lamps.