Magazine

Table: Energy Advances


Over the past 24 years, the National Renewable Energy Lab (NREL) has helped to bring a variety of green energy technologies to market

SOLAR

Photovoltaic modules have tumbled to $3 per watt of generating capacity from $20, while the modules have more than doubled in efficiency

WIND

Generation costs have fallen 90%, to 4 cents per kilowatt hour from 40 cents, in large part due to research at the largest turbine testing facility in the U.S.

BUILDING EFFICIENCY

Advances in building design, heating and air-conditioning systems, lighting, and insulation can slash energy usage by 40% to 80%


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