Octopus Energy Group scores 39/100 (Below expectations) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified May 2026.
That places Octopus Energy Group joint 376th of 809 companies scored, and 9th of 21 in Energy Supply / Utilities.
Octopus Energy has built comprehensive baseline emissions data and SBTi-verified net-zero targets covering all scopes, yet operational emissions are rising due to rapid growth. The company sources 100% renewable electricity via REGOs and PPAs, but relies on tradable certificates for 80% of supply—undermining additionality claims. Weak spots: no quantified nature footprint, minimal waste reporting, and unresolved incinerator controversy in Scotland.
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SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Targets & Commitments and Carbon Footprint — Operations (9/10, 7/10). Weakest on Water Impact and Resource Use & Waste (3/10, 3/10).
13 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.
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Where Octopus Energy Group sits among energy supply / utilities peers.
Among the 21 major energy supply / utilities brands we've scored, Octopus Energy Group sits 9th of 21.
Score history begins 8 February 2026.
As Octopus Energy Group's score updates, the trajectory will appear here.
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Octopus Energy Group is a UK-based energy retailer and generator founded in 2010, headquartered in London. The company supplies electricity and gas to over 3 million UK households and businesses, operates 4.9GW of renewable generation capacity, and manufactures heat pumps through its RED subsidiary. It is a major player in the UK energy transition and a prominent investor in distributed renewables infrastructure.
Direct competitor in UK renewable energy retail; vocal critic of Octopus's REGO-reliance strategy.
View breakdown →UK renewable energy supplier with stricter PPA-first sourcing; competitor on additionality claims.
View breakdown →European renewable generation leader; comparable offshore wind portfolio and net-zero target.
View breakdown →Utility-scale energy transition peer; higher operational emissions baseline but mature decarbonization reporting.
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