DIY electricity

摘要

You may keep yours in the loft, in an innocuous cupboard in a bedroom, or in your kitchen. You probably only look at it when it's not working. But next time you prise open that white fascia to relight the pilot light, remember that inside your boring old boiler is a revolution waiting to happen. Within 10 years, your gas water heater may well have been replaced by a fuel cell and combined heat and power (CHP) generator, and not only will you be generating electricity from gas in your own home, but you will also be selling any surplus to the grid.