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Thames Water Utilities Limited, commonly known as Thames Water, is a pivotal water and wastewater services company headquartered in Great Britain. Formed in 1989, it operates across a significant portion of the UK, primarily serving London and the Thames Valley region. The company's industry focus is on comprehensive water and wastewater treatment.
Thames Water is the UK's largest water and sewerage company, responsible for supplying clean, safe drinking water to over 15 million customers daily. Its core services include extensive water abstraction, treatment, and distribution, alongside the crucial collection and advanced treatment of wastewater. This critical infrastructure management underscores its unique position in maintaining public health and environmental standards.
43
DitchCarbon score
+26 vs industry average
Thames Water Utilities’s score of 43 is higher than 65% of the industry. This can give you a sense of how well the company is doing compared to its peers.
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Industry Intensity
High
Wastewater Treatment has above-average carbon intensity
Industry performance
1.067
20182025
The Wastewater Treatment industry has reduced its overall emissions by 32% since 2018
Emissions trajectory 2020 – 2028
202020212022202320242025202620272028
Reported emissions
Scope 1
•••kg CO₂e
Scope 2
•••kg CO₂e
Scope 3
•••kg CO₂e
Total reported
•••kg CO₂e
Scope 3 accounts for ••• of total emissions.
Thames Water Utilities's reported carbon emissions
Thames Water Utilities reported total emissions of approximately 352.4 million kg CO2e in 2025. This includes Scope 1 emissions of about 229.9 million kg CO2e, Scope 2 emissions (market-based) of approximately 1.9 million kg CO2e, and Scope 3 emissions of around 283.4 million kg CO2e. In the previous year, 2024, the company's total emissions were approximately 355.9 million kg CO2e.
Thames Water Utilities is committed to achieving net zero emissions from its operations (Scope 1 and 2) by 2030, with a further ambition to go beyond by 2040. The company has also pledged to meet its share of the UK Government's sixth carbon budget, aiming to limit operational and capital greenhouse gases by 78% by 2035 compared to 1990 levels, and to achieve net zero across all scopes by 2050. Previously, it had reduced emissions by 68% compared to its 1990 baseline, representing a 576,000 metric tons CO2e absolute reduction. Data regarding emissions and climate commitments is cascaded from its parent company, Thames Water Utilities Limited.
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Thames Water Utilities’s Climate Goals (2030 & 2050)
2025
Near-zero scope 1 & 2
Target to achieve near-zero emissions for direct operations and purchased energy
On track94%
2030
62% reduction in total GHG
Vs 2019 baseline. Validated by SBTi. Includes full supply chain.
At risk48%
2040
50% reduction in Scope 3 intensity
Across purchased goods and services and logistics.
Behind target22%
Showing SBTi-validated targets only. Sign up or sign in to see all disclosed climate targets.
Scope 3 top emissions categories
4 of 15 categories disclosedSee all scope 3 categories
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Climate initiatives
Science Based Targets Initiative
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Not active
Carbon Disclosure Project
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Not active
The Climate Pledge
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Not active
UN Global Compact Climate Champions initiative
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Not active
RE 100
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Not active
Climate Action 100
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Not active
Emissions comparison with industry peers
View similar organisationsCompanyCountryIndustryLast updatedScoreDetails
Thames Water Utilities7 days ago
43
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