British Gas scores 30/100 (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 British Gas joint 587th of 809 companies scored, and 18th of 21 in Energy Supply / Utilities.
British Gas operates as a major energy supplier with significant fossil fuel assets through parent company Centrica. Emissions are externally assured but absolute levels remain massive (~39Mt total). Core weaknesses: near-term emissions projected to rise, unvalidated net-zero targets, junk carbon offsets from controversial projects, and active lobbying against climate-aligned energy policy.
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SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Carbon Footprint — Operations and Transparency & Accountability (7/10, 6/10). Weakest on Nature & Biodiversity Impact and Water Impact (1/10, 2/10).
12 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.
6 of 12 sources are third-party verified or public record.
If you believe a source has been misread or a newer version exists, submit a challenge.
Where British Gas sits among energy supply / utilities peers.
Among the 21 major energy supply / utilities brands we've scored, British Gas sits 18th of 21.
Score history begins 8 February 2026.
As British Gas's score updates, the trajectory will appear here.
This score is not currently being contested.
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No challenges submitted yet. If you have evidence that contradicts this score, you can challenge any question above — cite a public source and we'll review it.
British Gas is a major UK energy supplier providing gas and electricity to millions of residential and business customers. Founded in 1973 and headquartered in Windsor, it is owned by Centrica, which also operates oil and gas production (Spirit Energy), LNG assets, and renewable energy capacity across 16.7GW. The company serves customers in the UK and Ireland.
Major integrated energy company with fossil assets, renewable capacity targets, and unvalidated net-zero commitments under pressure
View breakdown →Oil and gas major transitioning renewable energy mix while maintaining carbon-intensive upstream production
View breakdown →UK energy supplier with stronger renewable focus and lower absolute emissions profile; useful peer for retail energy model comparison
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