How to specify and deploy an off-grid system in the UK. Covers power requirement calculations and performance tradeoffs in the real world. How to handle low production near winter solstice. Touches on battery selection, care and feeding and dimensioning for a given power demand. How Inverters were selected. Reliability issues. Aimed at people wanting to deploy their own systems. I've been running off grid for the last 5 years in the West Midlands, and will share the what I have learnt during that time.