AC manufacturer Greencore has come up with a long-awaited solution to the inherent problem 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 from the power grid during the night to charge its batteries, leading to massive energy savings even if the solution isn’t 100% solar.
