Refrigeration Battery is a cool idea for saving energy at the supermarket


Supermarket-refrigerator.jpg.662x0_q70_crop-scaleElon Musk gets all the pixels for his new Powerwall battery system, but here's another cool battery that is making a splash. It's the Refrigeration Battery from Axiom. Apparently those giant coolers and fridges full of all that unhealthy frozen prepared food eat up 56 percent of a grocery store's electricity. The refrigeration battery, like the Powerwall, works by storing energy when power is cheap, smoothing out the demand curve. However it does it with water, not lithium.


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Lighting facts: Did you know that 70% of lightbulbs in the U.S. are still inefficient models?

Energy Star lighting facts

Those of us who are conscious about not wasting energy might thing that the energy-efficient lightbulb revolution is over. We switched to CFLs a few years ago, and are getting even better LEDs now. But according to Energy Star, the government agency that tracks that kind of thing, around 70% of light sockets in the U.S. still contain inefficient lightbulbs (meaning mostly: incandescent). (more…)