Carbon Footprint — Operations: How does Octopus Energy Group score?

Octopus Energy Group completed its first full emissions baseline in FY2024 using GHG Protocol methodology with measurement partner Altruistiq, whose platform is ISO 14064-1 recognised as assured by Lloyd's Register Quality Assurance. Scope 1 (1,922 tCO2e) and Scope 2 market-based (320 tCO2e) are disclosed. Operational control approach used across UK and international facilities. However, FY24 is the first baseline year so there is limited multi-year history for operational emissions at group lev

Carbon Footprint — Supply Chain: How does Octopus Energy Group score?

The FY2024 baseline includes Scope 3 emissions across most material categories (excluding categories 5, 8, 9, 10 & 14), with total market-based emissions of 14,187,154 tCO2e. The dominant Scope 3 source is use of sold products (natural gas combustion by customers). The company has quantified the majority of its value chain emissions using GHG Protocol methodology via Altruistiq. The comprehensive categorisation and quantification is strong, though this is the first year of full Scope 3 measureme

Emissions Trajectory: How does Octopus Energy Group score?

FY2024 is the first baseline year for group-level emissions, so there is no prior-year comparison for total emissions. Operational emissions (Scope 1 & 2 for the UK entity) have risen significantly from ~409 tCO2e in 2022 to ~2,382 tCO2e in 2024, driven by rapid growth including fleet expansion and Shell Energy Retail acquisition. However, fleet emissions per vehicle fell 23% in FY24 through EV electrification (93% BEV by FY25). Market-based building electricity emissions decreased 43% from FY24

Energy Source: How does Octopus Energy Group score?

100% of wholesale electricity sold is from zero-carbon sources, achieved through a combination of REGOs and PPAs from over 850 UK generators. 20% of electricity sold comes directly from Octopus Energy Generation's own renewables arm. Facility electricity from renewable sources increased to 74% in FY25, with a target of 100% by FY30. Fleet electrification reached 93% BEV by end of FY25. However, the reliance on REGOs for ~80% of customer electricity (rather than direct PPAs) is a widely-noted wea

Nature & Biodiversity Impact: How does Octopus Energy Group score?

Octopus Energy Generation has a Biodiversity Mission Statement and actively promotes biodiversity enhancement on renewable sites including wildflower meadows, beehives, wetland creation, bird/bat boxes, and grazing management. All OEGEN UK-based wind and solar projects consider biodiversity net gain and will purchase statutory biodiversity credits where necessary. However, no TNFD-aligned disclosure or quantified nature footprint was found. The incinerator investment at Oldhall in Scotland has d

Resource Use & Waste: How does Octopus Energy Group score?

Octopus Energy is primarily a service and energy retail business, so material throughput is relatively low outside of hardware installations (smart meters, heat pumps, solar panels, EV chargers). The company completed 903,000 meter installations and 65,000 low-carbon tech installations in FY25, implying significant hardware flows. There is mention of recycling and waste awareness in offices but no publicly quantified waste data, circular economy targets, or comprehensive resource use reporting w

Water Impact: How does Octopus Energy Group score?

Energy retail and renewable generation have relatively low direct water impact compared to thermal power generation or heavy industry. No specific water consumption data, water footprint, or water stewardship programme was identified in any Octopus Energy publication. The ESG Risk Matrix for Octopus Energy Generation's renewables funds includes water as a factor alongside biodiversity, but no quantified water metrics are published. The business is not water-intensive, but the lack of any reporte

Targets & Commitments: How does Octopus Energy Group score?

SBTi has verified Octopus Energy Group's net-zero science-based target by FY2040, aligned with 1.5°C for the power sector. Near-term targets include 42% absolute reduction in Scope 1 & 2 by FY2030, 88% per MWh reduction in Scope 3 electricity emissions by FY2030, and 59% absolute reduction in Scope 3 from natural gas by FY2034. Long-term targets include 90% absolute reduction across all scopes by FY2040. These are predominantly absolute targets (not intensity-only), cover all three scopes, and a

Transparency & Accountability: How does Octopus Energy Group score?

Octopus Energy Group publishes annual financial statements (FY24 and FY25) with SECR emissions disclosures. The Carbon Reduction Plan is published in line with PPN 06/21. The parent Octopus Group publishes a Future Generations Report. SBTi targets are publicly disclosed with methodology. TCFD disclosure exists for OE Generation. The Group Board includes investor representatives and founding executives with stated mission alignment. However, Octopus Energy Group is a private company, so there is

Controversies & Red Flags: How does Octopus Energy Group score?

Starting at 8. Deduction of 1 for the ongoing incinerator controversy in Scotland (Oldhall, Irvine) where Friends of the Earth Scotland has criticised Octopus Energy for investing in waste incineration despite local opposition and environmental concerns. Deduction of 0.5 for the historical REGO reliance criticism from competitors (Good Energy, Ecotricity) and industry commentators, and VMI's complaint about the misleading 'Green Gas' tariff name. Deduction of 0.5 for the 2020 Origin Energy inves

Octopus Energy Group Sustainability Score: 39/100

Recently scored: Dentsu, Omnicom, Publicis Groupe, WPP

507 companies scored·4 score updates this week

Octopus Energy Group·Energy Supply / Utilities·London, UK·Founded 2010·Last verified 21 April 2026

out of 100

Below expectationsPending Review+5 since last review

Octopus Energy has established science-based net-zero targets verified by SBTi and completed its first full emissions baseline in FY2024, but remains stuck at early-stage trajectory. Operational emissions rose 483% since 2022 despite growth investments; reliance on REGOs rather than direct renewable PPAs undermines green claims; and an incinerator investment has drawn legitimate environmental criticism.

No challenges currently filed

The calculation

Every score shows its working.

Same formula for every company. No curve. No private weighting.

SINK = (0.3 × Base + 0.7 × Performance) × Scale

Industry base impact

Energy Supply / Utilities sector ceiling.

55 / 100

Performance score

Sum of the 10 rubric questions, scored 0–10 each.

56 / 100

Raw score

Weighted average before scale penalty.

(0.3 × 55) + (0.7 × 56) = 55.7

Scale penalty

Multiplier based on absolute emissions volume — physics-first.

× 0.7

Final score

Rounded. Below expectations.

39 / 100

The ten questions

Where Octopus Energy Group is strong, and where it isn't.

Strongest on Targets & Commitments and Carbon Footprint — Operations (9/10, 7/10). Weakest on Water Impact and Resource Use & Waste (3/10, 3/10).

Where the evidence comes from

Every document used, listed.

13 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.

[1]Self-reported

Carbon Reduction Plan

2024

Q1Q2Q3Q4Q5Q6Q8Q9

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[2]Third-party verified

Octopus Energy — Ditchcarbon Organisation Profile

Ongoing

Q1Q3

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[3]Public record

Carbon Reduction Plan (Electroverse Mirror)

Unknown

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[4]Public record

How Green is Octopus Energy?

Unknown

Q4Q10

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[5]Self-reported

100% Green: What Does it Mean?

Unknown

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[6]Self-reported

Making Green Energy Greener

Unknown

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[7]Self-reported

Octopus Energy Generation — ESG Policy

Unknown

Q5Q6

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[8]Public record

Octopus Energy's Green Reputation Going Up in Smoke

Unknown

Q5Q10

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[9]Self-reported

Octopus Renewables Infrastructure — Sustainability Disclosures

Unknown

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[10]Self-reported

Net Zero Targets

Unknown

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[11]Self-reported

Octopus Energy Group — Financial Statements FY24

2024

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[12]Self-reported

Octopus Group — Reaching Net Zero

Unknown

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[13]Public record

Ecotricity — Octopus Energy Origin Investment Criticism

2020

Q10

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If you believe a source has been misread or a newer version exists, submit a challenge.

Octopus Energy Group in context

Where Octopus Energy Group sits among energy supply / utilities peers.

Among the 17 major energy supply / utilities brands we've scored, Octopus Energy Group sits 8th of 17.

8/17

Octopus Energy Group's rank

Industry average

Industry low

Industry high

8Octopus Energy Group

9National Grid

10Électricité de France (EDF)

13ENGIE

How this score has moved

Octopus Energy Group's score over time.

Score history begins 8 February 2026.

As Octopus Energy Group's score updates, the trajectory will appear here.

We're backfilling historical scores for FTSE 100 and S&P 100 companies over the coming weeks.

What's being contested

This score is not currently being contested.

Every challenge is published. We'd rather be corrected than wrong — that's the whole point.

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.

About Octopus Energy Group

Octopus Energy Group is a UK-based energy retailer and renewable generator supplying electricity and gas to 3+ million customers. Founded 2010, it operates retail supply, generation via Octopus Energy Generation (4.9GW managed), and EV charging and heat pump deployment through subsidiary arms, positioning itself as a decarbonisation enabler across the energy transition.

Founded

2010

Headquarters

London, UK

Employees

~11,000

Annual revenue

~£12.4B

Company website ↗

Check the competitors

Related companies worth a look.

Energy Supply / Utilities

Good Energy

Competitor positioned as pure-play renewables retailer; competitor criticism of Octopus REGO strategy provides transparency lens.

View breakdown →

Energy Supply / Utilities

Ecotricity

Competitor with stricter fossil fuel divestment criteria; 2020 Origin Energy controversy directly cited Ecotricity as critical voice.

View breakdown →

Energy Supply / Utilities

British Gas

Largest UK gas supplier by volume; structural peer for evaluating Octopus's decarbonisation claims against incumbent utility baselines.

View breakdown →

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