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Octopus Energy Limited

octopus.energycareers

Explore carbon emissions data for Octopus Energy Limited. Mycelium helps you review reported emissions, disclosure status, Scope 1, Scope 2 and Scope 3 data, climate targets and sustainability information in one company profile.

This profile brings together available carbon emissions data for Octopus Energy Limited, including reported figures, modelled estimates, disclosure documents and sustainability indicators, so you can review its emissions and compare its performance against similar companies. Read how we source and check this data.

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Emissions

Carbon emissions

Structured data JSON-LD, Open Corporate Carbon Footprint Data Model Spreadsheet CSV

Open Corporate Carbon Footprint Data Model, by the Carbon Accounting Alliance with Murmurate Digital, Mycelium and Roundarc.

Total yearly emissions across all scopes

1,437,418 tCO2e

Scope 1

tCO2e

719,940

Scope 2

tCO2e

18,248

Scope 3 total

tCO2e

699,230

Scope 3 reported

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
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view full emissions profile

Provenance

Review the sources and documents behind Octopus Energy Limited's emissions data. Provenance matters because it shows where the information comes from, how recent it is and how complete the disclosure appears to be.

Documents

No source document on file.

Carbon accountant

–

Emissions
Factors

Modelled emission factor Total, all scopes including all Scope 3
– kgCO2e / £M

Supplier specific emission factors (kgCO2e / £M)

Modelled
Reported
Scope 1 + 2 Direct + purchased energy
–
–
Upstream + upstream Scope 3
–
–
Total + all Scope 3
–
–

Which figure should I use?

Use Modelled. It is the most complete view: any categories the company hasn't disclosed are filled with industry-typical estimates, so a transparent company isn't unfairly penalised against one that simply hasn't reported.

Reported counts only emissions the company has filed itself. A blank or low Reported cell doesn't mean those emissions don't exist, just that the company hasn't disclosed them.

When Reported sits close to Modelled, that is a positive signal. The company has disclosed most of its salient emissions and there's little gap for the model to fill. Even then, Modelled is the right figure to use for a like-for-like comparison across companies.

Sustainability
Snapshot

Based on reported data, retrieved with AI

  • Octopus Energy Limited reported 1,437,418 tCO₂e in 2024.
  • Scope 3 accounted for 49% of emissions.
  • Reported across 5 of 15 GHG Protocol Scope 3 categories.
  • Total emissions increased 101.9% from 2023.
  • Disclosures available for 4 reporting years (since 1954).

According to available emissions disclosures, Octopus Energy Limited reported total yearly emissions of 1,437,418 tCO₂e in 2024. Scope 1 emissions accounted for 50% of reported output, indicating direct emissions from owned facilities, fleet vehicles, and on-site fuel combustion were the leading contributors to the company's footprint.

The company achieved a Mycelium Score of –, pending a benchmark for its sector for sustainability performance.

Total Emissions across all scopes

1,437,418 tCO2e

Scope 1 emissions

Direct emissions from sources the company owns or controls, such as fuel use, facilities and vehicles.

ESTIMATED

Direct emissions

719,940

tCO2e

Scope 2 emissions

Indirect emissions from purchased energy, including electricity, heating and cooling.

ESTIMATED

Location based

18,248

tCO2e

Market based

–

tCO2e

Scope 3 emissions

Wider value chain emissions across the 15 GHG Protocol categories, from purchased goods and business travel to investments, where reported.

ESTIMATED

Cat 1

Purchased goods & services

31,862

tCO2e
ESTIMATED

Cat 2

Capital goods

2,028

tCO2e
ESTIMATED

Cat 3

Fuel & energy related activities

274,015

tCO2e
ESTIMATED

Cat 4

Upstream transportation & distribution

29,979

tCO2e

Cat 5

Waste generated in operations

0

tCO2e
ESTIMATED

Cat 6

Business travel

2,028

tCO2e
ESTIMATED

Cat 7

Employee commuting

2,028

tCO2e

Cat 8

Upstream leased assets

0

tCO2e

Cat 9

Downstream transportation & distribution

0

tCO2e

Cat 10

Processing of sold products

0

tCO2e
ESTIMATED

Cat 11

Use of sold products

288,787

tCO2e
ESTIMATED

Cat 12

End-of-life treatment of sold products

2,462

tCO2e
ESTIMATED

Cat 13

Downstream leased assets

2,462

tCO2e

Cat 14

Franchises

0

tCO2e
ESTIMATED

Cat 15

Investments

63,579

tCO2e

12 values were derived via Mycelium's normalisation process rather than reported by the company. Cells marked “–” were not disclosed.

Structured data JSON-LD, Open Corporate Carbon Footprint Data Model Spreadsheet CSV

Open Corporate Carbon Footprint Data Model, by the Carbon Accounting Alliance with Murmurate Digital, Mycelium and Roundarc.

Contact Info

Address

UK House, 5th Floor
164-182 Oxford Street
London
London
Greater London (Westminster)
W1D 1NN

Country

United Kingdom

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How scoring works

How the Mycelium Score is calculated

The Mycelium Score is out of 10. Up to 6.5 points reflect carbon intensity vs sector peers (emissions normalised against revenue). The remaining 3.5 reflect data quality: third-party verified, profile claimed by the company, and full disclosure across all reporting categories.

A higher score means lower carbon intensity than sector peers, backed by data that's third-party verified, claimed by the company, and fully disclosed. Octopus Energy Limited's score sits at the top of this page and in the score panel.

How the Transparency Score is calculated

The Transparency Score measures how much of a company's key emissions data is publicly disclosed, graded from A (very high) down to F (very low). Crucially, it weights each gap by how material that bucket is for the company's industry, so an undisclosed category where the bulk of emissions sit hurts far more than a minor one.

For Octopus Energy Limited, the single biggest gap is Scope 1 (direct emissions). Mycelium estimates it accounts for around 50% of the company's total footprint, typically the largest source of emissions for a Services company, yet it hasn't been disclosed. Leaving a bucket this large unreported is what's holding the transparency score down.

Other material categories Octopus Energy Limited hasn't disclosed:

  • Use of sold products (Scope 3 Category 11), around 20% of the estimated footprint
  • Fuel & energy related activities (Scope 3 Category 3), around 19% of the estimated footprint
  • Investments (Scope 3 Category 15), around 4% of the estimated footprint

In total, roughly 93% of Octopus Energy Limited's estimated emissions sit in categories it hasn't reported. Disclosing these would be the fastest way to raise the transparency score.

Cover of Mycelium's scoring methodology white paper Read the full scoring methodology Our white paper covers exactly how the Mycelium Score and Transparency Score are calculated, including the normalisation process and what earns a 10/10. Download the white paper (PDF)

Octopus Energy Limited carbon emissions FAQs

What are Octopus Energy Limited's carbon emissions?

In its 2024 reporting year, Octopus Energy Limited disclosed total emissions of 1,437,418 tCO2e across all scopes. Scope 1 accounted for the largest share, around 50% of the total.

Does Octopus Energy Limited report Scope 1, Scope 2 and Scope 3 emissions?

For 2024, Octopus Energy Limited's available disclosure covers Scope 3 across 5 of the 15 GHG Protocol categories. Figures not reported by the company are shown as modelled estimates and labelled as such.

Learn more about our methodology and where this data comes from.