SUPPOSE every time you cooked a meal you could generate extra power and sell it to the national grid. A gas-burning boiler that is being launched in the UK promises to do just that.
The WhisperGen, a small combined heat and power system, is based on the Stirling external combustion engine. Developed by Whisper Tech of Christchurch, New Zealand, the WhisperGen is rather like a tiny domestic version of the combined heat and power plants popular in continental Europe (New Scientist, 2 March 2002, p 36).
British law already gives private generators the right to sell electricity to the…
