Direct emissions
29,803
tCO2e
P
Pennon Group PLC
Explore carbon emissions data for Pennon Group PLC. 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 Pennon Group PLC, 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.
Emissions
Carbon emissions
Total yearly emissions across all scopes
429,362 tCO2e (Market Based)
Scope 1
tCO2e
29,803
Scope 2 (Market Based)
tCO2e
26,975
Scope 3 total
tCO2e
372,584
Scope 3 reported
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
Provenance
Emissions
Factors
409,775
kgCO2e / £M
Supplier specific emission factors (kgCO2e / £M)
Modelled
Reported
Scope 1 + 2
Direct + purchased energy
54,188
54,188
Upstream
+ upstream Scope 3
54,244
54,188
Total
+ all Scope 3
409,775
339,831
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
- Pennon Group PLC reported 429,362 tCO₂e in 2025.
- Scope 3 accounted for 87% of emissions.
- Scope 2 reported under the market based methodology.
According to available emissions disclosures, Pennon Group PLC reported total yearly emissions of 429,362 tCO₂e in 2025. Scope 3 emissions accounted for 87% of reported output, indicating supply chain activity, purchased goods and services, business travel, and wider operational dependencies were the most significant contributors to the company's carbon footprint.
The company achieved a Mycelium Score of 0.0, placing it well below average for its sector for sustainability performance, and received a transparency score of 0.0, pointing to very little public detail on their key emissions.
Total Emissions across all scopes
429,362 tCO2e (Market Based)
Scope 1 emissions
Direct emissions from sources the company owns or controls, such as fuel use, facilities and vehicles.
Scope 2 emissions
Indirect emissions from purchased energy, including electricity, heating and cooling.
Location based
89,432
tCO2eMarket based
26,975
tCO2eScope 3 emissions
Wider value chain emissions across the 15 GHG Protocol categories, from purchased goods and business travel to investments, where reported.
Cat 1
Purchased goods & services
7
tCO2eCat 2
Capital goods
7
tCO2eCat 3
Fuel & energy related activities
7
tCO2eCat 4
Upstream transportation & distribution
7
tCO2eCat 5
Waste generated in operations
7
tCO2eCat 6
Business travel
7
tCO2eCat 7
Employee commuting
7
tCO2eCat 8
Upstream leased assets
7
tCO2eCat 9
Downstream transportation & distribution
0
tCO2eCat 10
Processing of sold products
0
tCO2eCat 11
Use of sold products
0
tCO2eCat 12
End-of-life treatment of sold products
0
tCO2eCat 13
Downstream leased assets
0
tCO2eCat 14
Franchises
0
tCO2eCat 15
Investments
73,229
tCO2e15 values were derived via Mycelium's normalisation process rather than reported by the company. Cells marked “–” were not disclosed.
Climate targets
Science Based Targets initiative
Near-term target
Targets set (1.5°C), target year 2032
Net zero
Commitment removed
Source: Science Based Targets initiative, Companies Taking Action.
Contact Info
Website
www.pennon-group.co.ukAddress
Peninsula House
Rydon Lane
Exeter
Exeter
Devon
EX2 7HR
Country
United Kingdom
Phone
+44 1392 446677Browse carbon emissions data by industry
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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. Pennon Group PLC'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 Pennon Group PLC, the single biggest gap is Investments (Scope 3 Category 15). Mycelium estimates it accounts for around 56% of the company's total footprint, typically the largest source of emissions for a Financial Services company, yet it hasn't been disclosed. Leaving a bucket this large unreported is what's holding the transparency score down.
In total, roughly 56% of Pennon Group PLC's estimated emissions sit in categories it hasn't reported. Disclosing these would be the fastest way to raise the transparency score.
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)
Pennon Group PLC carbon emissions FAQs
What are Pennon Group PLC's carbon emissions?
In its 2025 reporting year, Pennon Group PLC disclosed total emissions of 429,362 tCO2e across all scopes. Scope 3 accounted for the largest share, around 87% of the total.
Does Pennon Group PLC report Scope 1, Scope 2 and Scope 3 emissions?
For 2025, Pennon Group PLC's available disclosure covers Scope 1 (29,803 tCO2e), Scope 2 (26,975 tCO2e). Figures not reported by the company are shown as modelled estimates and labelled as such.
How transparent is Pennon Group PLC's emissions reporting?
Pennon Group PLC has a Mycelium transparency score of 0 out of 100. The score weights each emissions category by how material it is for the company's industry, so it reflects whether the disclosures that matter most have been made.
Is Pennon Group PLC sustainable?
Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. Pennon Group PLC has a Mycelium Score of 0 out of 10, which reflects its emissions intensity against sector peers together with how transparent and well-verified its reporting is. The emissions figures, disclosure documents and climate targets on this page give the fuller picture.
Is Pennon Group PLC environmentally friendly?
Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. Pennon Group PLC disclosed 429,362 tCO2e for 2025, and its Mycelium Score of 0 out of 10 shows how that performance compares with similar companies in its sector.
Learn more about our methodology and where this data comes from.
