Judging by its energy usage, the School Without Walls in the District of Columbia may actually have no walls: It scores a 16 out of 100 on the EnergyStar scale, which ranks buildings by energy ...

When shopping for laptops, you’ll notice that some have Energy Star in their product listings. In person, you may even see Energy Star stickers on the laptops themselves. But what exactly is it? How ...

Recent cooler weather is now making way for summer-like temperatures, which means you'll probably be kicking your air conditioner into high gear very soon, if you haven't already. The National Energy ...

NREL has updated its Best Research-Cell Efficiency Chart. The tool highlights the highest confirmed conversion efficiencies of research cells for a range of PV technologies. “Everything up to the end ...

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Asma Aziz does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Electric HVAC systems can help you keep your home comfortable using a fraction of the energy. We spoke to experts to find out just how efficient they are. Mike De Socio is a CNET contributor who ...

Home energy systems are fantastic add-ons to your house. In the long run, they can help you save on utility bills, but they're not perfect. That's because no system is 100% efficient. The reality of ...

Despite numerous advances, energy efficiency is often misunderstood. Too frequently, it’s equated with cost-cutting or making do with less. But for today’s commercial leaders, efficiency is about ...