After yesterday’s Tweet-a-watt socially-talkative energy monitor, now comes a somewhat more comprehensive version. Rather than measuring electricity use of a single appliance, Jason’s system monitors the whole house’s energy supply: AC clamps mean there’s no dangerous wiring into the mains to be done, and the measurements are updated to a webpage automatically every ten seconds.





We’re still waiting for a truly compact, domestic wind turbine in the manner of the 







