Greencore Semi-Solar-Powered Units Use Both the Sun and the Grid

AC manufacturer Greencore has come up with a long-awaited solution to the inherent problem » 8/16/08 1:00pm 8/16/08 1:00pm in solar-powered air conditioning units-solar panels are still not efficient enough to power the energy-gobbling machines on their own. The company's 10200 model uses a single 170-watt solar panel during the day and electricity…