Duke Energy scores 25/100 (Significant gaps) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified May 2026.
That places Duke Energy joint 696th of 809 companies scored, and joint 20th of 21 in Energy Supply / Utilities.
Duke Energy is America's largest coal ash polluter, with criminal convictions for Clean Water Act violations and documented groundwater contamination across multiple states. Its 72Mt annual Scope 1 emissions remain stubbornly high despite 48% cuts from 2005 baseline. The company lobbies against renewable standards while building new gas plants, undermining stated climate commitments.
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SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Carbon Footprint — Operations and Transparency & Accountability (6/10, 5/10). Weakest on Water Impact and Nature & Biodiversity Impact (2/10, 2/10).
17 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.
12 of 17 sources are third-party verified or public record.
If you believe a source has been misread or a newer version exists, submit a challenge.
Duke Energy is tied at the bottom of the energy supply / utilities pack.
Among the 21 major energy supply / utilities brands we've scored, Duke Energy is tied =20th of 21, with 1 other.
Score history begins 4 April 2026.
As Duke Energy's score updates, the trajectory will appear here.
This score is not currently being contested.
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Duke Energy is a regulated utility generating and distributing electricity across the Carolinas, Florida, Ohio, Kentucky, and Tennessee. Founded in 1904 and headquartered in Charlotte, North Carolina, it is one of the largest power producers in the US, with 2022 revenue of $28.7 billion. The company operates coal, nuclear, natural gas, and renewable generation.
Fellow US coal-heavy utility facing similar coal ash liability and climate transition lag.
View breakdown →US utility with higher renewable penetration; benchmark for energy source and emissions trajectory.
View breakdown →Major fossil fuel producer with comparable lobbying obstructiveness and climate deception allegations.
View breakdown →European utility with aggressive renewable build-out and lower coal exposure; comparison on transition pace.
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