EIA Releases State Electricity Carbon Intensity Rankings
New federal data highlights varied carbon intensity across states based on regional power generation methods.
Updated on Oct. 15, 2026 in Utilities
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The U.S. Energy Information Administration has released its latest rankings on electricity generation carbon intensity. The report details how states rely on different energy mixes to produce power.
Why it matters
Understanding carbon intensity helps track the environmental footprint of regional power sectors. Shifts in energy reliance directly impact the nation's progress in reducing greenhouse gas emissions.
Wyoming ranks 3rd in carbon intensity nationally, while Utah and Montana rank 8th and 14th respectively. Nationwide, U.S. power sector greenhouse gas emissions have fallen by 40% between 2005 and 2024.
The players
U.S. Energy Information Administration
This is the primary statistical agency within the U.S. Department of Energy responsible for collecting and analyzing energy data.
The details
Carbon intensity is measured by the amount of carbon dioxide released per unit of electricity generated, which varies based on a state's use of coal, natural gas, renewables, or hydropower. States like Wyoming experience higher rankings due to a heavy reliance on coal-fired electricity generation, which has become increasingly costly.
Timeline
1990 marks the start of the carbon intensity reduction tracking period.
U.S. power sector greenhouse gas emissions fell 40% between 2005 and 2024.
The latest federal carbon intensity data was published in October 2026.
Market Landscape
This data reflects long-term energy shifts as states move away from traditional coal-fired generation. These rankings position coal-dependent regions against growing national trends toward lower carbon intensity.
Average electricity consumers may see shifts in their local utility rates as power providers pivot away from increasingly expensive coal generation. These regional trends influence how states plan for future energy infrastructure and potential changes to utility pricing models.
The takeaway
Energy generation trends show a consistent national decline in carbon intensity across almost all states since 1990. Consumers interested in their region's impact can monitor these federal updates to track the evolving energy mix.
Further reading
For broader trends in power production, visit the Utilities section.
Source note: This article includes information reported by Wyoming Public Media.
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Should your state prioritize reducing electricity carbon intensity even if it impacts local energy production costs?
