A Comparison of Electricity Generation Sources by State Over the Past 10 Years

According to the US Energy Information Administration (EIA), coal is the most used electricity generation source by state in 2017, followed by natural gas.
A Comparison of Electricity Generation Sources by State Over the Past 10 Years - News

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www.eia.gov

In 2017, natural gas provided 32% of the total electricity generation in the United States, taking over coal with 30% of the share. When comparing electricity generation sources by state, fossil fuels continue to be the most common source in 35 states in 2017. Compared to 2007, this number is down from 40 states using the mainly fossil fuels for power generation.

The following chart shows the changes in the number of states and the most common sources of electricity generation for each state:

Number of States Using Main Electric Generation Sources

Electricity Generation Source20072017
Coal2818
Natural Gas1116
Petroleum11
Nuclear69
Hydro46

With the retirement of coal-fired power plants, the 10 states that were primarily generating electricity from coal in 2007 converted either to natural gas or nuclear. Vermont ‘s sole nuclear power plant was retired in 2014, and hydro and biomass became the state’s power generation sources. In Maine, the decreased use of the state’s natural gas-fired generator resulted in hydro becoming the state’s most common power generation source. New Jersey increased their natural gas power generation by more than 25%, thus surpassing nuclear as the main power generator.

States that Changed in Electric Generation Source from 2007 to 2017

StateChange From:Change To:
ALCoalNatural Gas
AZCoalNuclear
DECoalNatural Gas
GACoalNatural Gas
MENatural GasHydro
MDCoalNuclear
NCCoalNuclear
NJNuclearNatural Gas
OKCoalNatural Gas
PACoalNuclear
TNCoalNuclear
VACoalNatural Gas
VTNuclearHydro

More information on electric power can be found on EIA's website.