If Martin Keller’s prediction comes true, in 50 years the U.S. won’t be using nearly the amount of crude oil, refined petroleum products, natural gas or coal as the legacy energy industry has been supplying for the past 100 years - Part One
The National Renewable Energy Laboratory, Golden, Colorado

The National Renewable Energy Laboratory, or NREL, is a place you might label as the federal government’s showcase for all things energy-efficient and renewable. It is a beautifully sited facility, a cluster of passive solar structures that seem ...

U.S. Power Generation by Fuel Source - 2015

In 2015, the United States generated about 4 trillion kilowatthours of electricity, according to the EIA. About 5% of the electricity generated was from wind and solar.

Major energy sources and percent share of total U.S. electricity generation in 2015:

Coal = 33%

Natural gas = 33%

Nuclear = 20%

Hydropower = 6%

Biomass = 1.6%

Geothermal = 0.4%

Solar = 0.6%

Wind = 4.7%

Petroleum = 1%

Other gases = <1%

(Source: EIA –based on generation by utility-scale facilities)  


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