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Glas Cymru Holdings Cyfyngedig

dwrcymru.com 1.7

Explore carbon emissions data for Glas Cymru Holdings Cyfyngedig. 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 Glas Cymru Holdings Cyfyngedig, 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

1,071,186 tCO2e (Location Based)

Scope 1

tCO2e

64,200

Scope 2 (Location Based)

tCO2e

92,500

Scope 3 total

tCO2e

914,486

Scope 3 reported

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view full emissions profile

Provenance

Review the sources and documents behind Glas Cymru Holdings Cyfyngedig'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

Cover of the source filing PDF Load PDF

Carbon accountant

–

Emissions
Factors

Modelled emission factor Total, all scopes including all Scope 3
1,121,660 kgCO2e / £M

Supplier specific emission factors (kgCO2e / £M)

Modelled
Reported
Scope 1 + 2 Direct + purchased energy
164,084
164,084
Upstream + upstream Scope 3
674,967
292,670
Total + all Scope 3
1,121,660
292,670

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

  • Glas Cymru Holdings Cyfyngedig reported 1,071,186 tCO₂e in 2025.
  • Scope 3 accounted for 85% of emissions.
  • Reported across 2 of 15 GHG Protocol Scope 3 categories.
  • Scope 2 reported under the location based methodology.

According to available emissions disclosures, Glas Cymru Holdings Cyfyngedig reported total yearly emissions of 1,071,186 tCO₂e in 2025. Scope 3 emissions accounted for 85% 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 1.7, placing it well below average for its sector for sustainability performance, and received a transparency score of 53.3, pointing to fairly limited disclosure, with notable gaps in key areas.

Total Emissions across all scopes

1,071,186 tCO2e (Location Based)

Scope 1 emissions

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

Direct emissions

64,200

tCO2e

Scope 2 emissions

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

Location based

92,500

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.

Cat 1

Purchased goods & services

96,500

tCO2e

Cat 2

Capital goods

26,300

tCO2e
ESTIMATED

Cat 3

Fuel & energy related activities

320,537

tCO2e
ESTIMATED

Cat 4

Upstream transportation & distribution

35,069

tCO2e
ESTIMATED

Cat 5

Waste generated in operations

2,372

tCO2e
ESTIMATED

Cat 6

Business travel

2,372

tCO2e
ESTIMATED

Cat 7

Employee commuting

2,372

tCO2e
ESTIMATED

Cat 8

Upstream leased assets

2,372

tCO2e
ESTIMATED

Cat 9

Downstream transportation & distribution

2,880

tCO2e
ESTIMATED

Cat 10

Processing of sold products

2,880

tCO2e
ESTIMATED

Cat 11

Use of sold products

337,817

tCO2e
ESTIMATED

Cat 12

End-of-life treatment of sold products

2,880

tCO2e
ESTIMATED

Cat 13

Downstream leased assets

2,880

tCO2e
ESTIMATED

Cat 14

Franchises

2,880

tCO2e
ESTIMATED

Cat 15

Investments

74,374

tCO2e

13 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

Dwr Cymru Welsh Water
Linea, Fortran Road
St. Mellons
St. Mellons
Cardiff
CF3 0LT

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. Glas Cymru Holdings Cyfyngedig'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 Glas Cymru Holdings Cyfyngedig, the single biggest gap is Use of sold products (Scope 3 Category 11). Mycelium estimates it accounts for around 32% of the company's total footprint, typically the largest source of emissions for a Infrastructure company, yet it hasn't been disclosed. Leaving a bucket this large unreported is what's holding the transparency score down.

Other material categories Glas Cymru Holdings Cyfyngedig hasn't disclosed:

  • Fuel & energy related activities (Scope 3 Category 3), around 30% of the estimated footprint
  • Investments (Scope 3 Category 15), around 7% of the estimated footprint
  • Upstream transportation & distribution (Scope 3 Category 4), around 3% of the estimated footprint

In total, roughly 72% of Glas Cymru Holdings Cyfyngedig'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)

Glas Cymru Holdings Cyfyngedig carbon emissions FAQs

What are Glas Cymru Holdings Cyfyngedig's carbon emissions?

In its 2025 reporting year, Glas Cymru Holdings Cyfyngedig disclosed total emissions of 1,071,186 tCO2e across all scopes. Scope 3 accounted for the largest share, around 85% of the total.

Does Glas Cymru Holdings Cyfyngedig report Scope 1, Scope 2 and Scope 3 emissions?

For 2025, Glas Cymru Holdings Cyfyngedig's available disclosure covers Scope 1 (64,200 tCO2e), Scope 2 (92,500 tCO2e), Scope 3 across 2 of the 15 GHG Protocol categories. Figures not reported by the company are shown as modelled estimates and labelled as such.

How transparent is Glas Cymru Holdings Cyfyngedig's emissions reporting?

Glas Cymru Holdings Cyfyngedig has a Mycelium transparency score of 53.3 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 Glas Cymru Holdings Cyfyngedig sustainable?

Mycelium measures sustainability through carbon emissions data rather than giving a yes or no verdict. Glas Cymru Holdings Cyfyngedig has a Mycelium Score of 1.7 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 Glas Cymru Holdings Cyfyngedig environmentally friendly?

Carbon emissions are one measurable part of environmental impact, and the part Mycelium tracks. Glas Cymru Holdings Cyfyngedig disclosed 1,071,186 tCO2e for 2025, and its Mycelium Score of 1.7 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.