New submitter MarcAuslander sends this Associated Press report: Eneco, a Dutch-based energy company with more than 2 million customers, said Tuesday it is installing 'e-Radiators' — computer servers that generate heat while crunching numbers — in five homes across the Netherlands in a trial to see if their warmth could be a commercially viable alternative for traditional radiators. The technology is the brainchild of the Dutch startup company Nerdalize, whose founders claim to have developed the idea after huddling near a laptop to keep warm after their home's thermostat broke and jokingly suggesting buying 100 laptops. Nerdalize says its e-Radiators offer companies or research institutes a cheaper alternative to housing servers in data centers. And because Nerdalize foots the power bill for the radiators, Eneco customers get the warmth they generate for free. The companies said the environment wins, too, because energy is effectively used twice in the new system - to power the servers and to heat rooms.