Energy Self-Reliant States 2020: The Third Edition

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In 2010, ILSR published the first national overview of state renewable electricity potential with the second edition of Energy Self-Reliant States (ESRS). At the time, only 32 states met the “self-reliant” standard and most states were setting ambitious goals to attain 25 percent renewable electricity. Now, several states and over 100 U.S. cities have made truly ambitious commitments to 100 percent renewable power.

Our maps illustrate nationwide renewable electricity potential from a wide variety of sources. We have mapped out the state-by-state renewable generation potential of rooftop solar, onshore and offshore wind, conventional geothermal, and small hydro.

As before, we’ve also considered energy efficiency, creating a version of our all-resources potential map that considers the difference if all states could match their energy intensity to a state like New York (a decrease in energy use per dollar of GDP for most states). A new layer considers how renewables could meet the increased energy demand required for the electrification of vehicles and buildings. Finally, we present an all-resources potential map that imagines a state of both lower energy intensity and high electrification, where the state taps its renewable electricity potential to power more of the total economy.

The bottom line: improved renewable electricity technology would allow nearly every state to produce 100 percent of its electricity needs from local renewable resources.

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