LED bulbs hit 100 watts as federal ban looms

Two leading makers of lighting products are showcasing LED bulbs that are bright enough to replace energy-guzzling 100-watt light bulbs set to disappear from stores in January.

NREL demonstrates 45.7% efficiency for concentrator solar cell

The Energy Department's National Renewable Energy Laboratory has announced the demonstration of a 45.7 percent conversion efficiency for a four-junction solar cell at 234 suns concentration. This achievement represents one ...

Antonov creates a 3-speed transmission for electric cars

(PhysOrg.com) -- There are a surprising number of designs out there for electric cars. Most of the design innovations are about creating a more efficient design. While this has meant, for the most part, that design innovations ...

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