.
What to do if ... you want to live off-grid
"...Michael Rea, 64, and his wife Dot retired to the Shetland island of Unst in 2001 and now live in a zero-carbon house. In the past year, the couple have lived near off-grid, with heating costs of just 50p a day for their 180sq m home in the most northerly part of the British Isles ..."
Reference: www.independent.co.uk