15 Siliken 250W pannels + PowerOne Aurora PVI-3.6 inverter on South facing (within 2 degs) 30degs to horiz. slope.
Seems to be producing very well but doesn't seem to have a startling effect on grid use. However, when the gen. goes up the grid use goes down by 1 or 2 units per day. I'm glad I invested rather than go for 'free' pannels. :-)
Wood burning stove to suplement the gas CH in coldest weather - when it gets going it shuts the heating off even on really cold evenings and I open doors to send the hot air round the house. Most of the wood used in the last three years was aquired for nothing. :-)