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Wessex Water Services

39Laggard· Provisional
0 followersWater & sewerage utility·Bath, United Kingdom·Founded 1989
corporate.wessexwater.co.uk

Water and sewerage company serving 2.9 million customers across Dorset, Somerset, Wiltshire and the Bristol area, wholly owned by Malaysian conglomerate YTL Corporation since 2002.

39/100
Laggard· Provisional

ClimateTicker Green Score · how it's calculated

Greenwashing risk: mediumData confidence: high

Why it's on ClimateTicker

Wessex Water is a regulated water and sewerage utility with genuine adaptation relevance — supplying and treating water is increasingly climate-critical — and it has published detailed net-zero roadmaps targeting operational carbon neutrality by 2030 and total carbon by 2040, joined the UN Race to Zero, and issued a Sustainable Finance Framework. However, its core operational record is materially undermined by a pattern of serious sewage pollution incidents, criminal convictions, a regulatory bonus ban, and the absence of independently validated (SBTi) or CDP-disclosed targets, making its green credentials more aspirational than verified.

adaptationWessex Water earns revenue through regulated water and sewerage tariffs charged to approximately 2.9 million customers across south-west England, with Ofwat setting allowable price limits every five years; it is wholly owned by Malaysian conglomerate YTL Corporation via YTL Power International.

Commitments & Certifications

other: Member ↗other: Framework published; aligned with ICMA Green Bond Principles, Social Bond Principles, and LMA Social Loan Principles ↗

Controversy & Greenwashing Watch

mediumOfwat bonus ban for 2024–25 due to pollution failures

Wessex Water was one of six companies whose directors were banned from receiving annual bonuses for 2024–25 by Ofwat after triggering the bonus-ban rule, primarily due to category 1 pollution incidents.source ↗

highSerious pollution incidents surged to red-rated status in 2024

Serious pollution incidents rose from 126 (amber) in 2023 to 215 (red-rated) in 2024, equating to 62 per 10,000 km of sewer, prompting Ofwat to also ban the CFO's bonuses in June 2025.source ↗

high£500k criminal conviction for sewage pollution killing 2,000+ fish

Wessex Water pleaded guilty to three charges of causing untreated sewage to enter controlled waters (2018 incidents), was convicted at Swindon Magistrates' Court in November 2024 and fined £500,000 plus £60,000 costs; the Environment Agency flagged its ageing rising mains as a systemic under-investment risk.source ↗

lowASA complaint over greenwashing advertising

The UK Advertising Standards Authority reviewed a Wessex Water ad campaign ('A better way for our waterways is already underway') in the context of the company's two-star EPA rating in both 2021 and 2022, which indicated the company 'requires improvement' on environmental performance.source ↗

mediumExecutive pay circumvention despite Ofwat bonus ban

Despite Ofwat banning performance-related bonuses, Surfers Against Sewage reported that Wessex Water executives received an additional £50,000 from parent company Wessex Water Ltd, raising governance concerns about regulatory intent being circumvented.source ↗

high£280k DWI fine for supplying water unfit for human consumption

Wessex Water was fined £280,000 in May 2023 after failing to follow its own testing procedures, allowing iodinated compounds to reach tap water in the Amesbury area of Wiltshire for three weeks in 2021, making it undrinkable.source ↗

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