Severn Trent scores 40/100 (Below expectations) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified August 2026.
That places Severn Trent joint 348th of 790 companies scored, and joint 9th of 23 in Energy Supply / Utilities.
Severn Trent operates ahead of schedule on operational emissions but Scope 3 is rising. Sewage discharge remains systemic: 60,253 storm overflow spills across its network in 2023 (Environment Agency data), a £2.07M criminal fine in 2024, and Ofwat's 'serious and unacceptable' finding. Board pay is tied to carbon targets, but physical ecosystem harm from ongoing spills undermines credibility.
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SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Carbon Footprint — Operations and Transparency & Accountability (7/10, 7/10). Weakest on Carbon Footprint — Supply Chain and Controversies & Red Flags (4/10, 5/10).
10 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.
“Long-term remuneration: 50% on non-financial criteria, including 20% on carbon footprint reduction”
“Based Target commits us to a 46% reduction in our direct operational Scope 1 and 2 emissions by 2031”
“58% of our supply chain by emissions have now committed to science-based targets.”
“Severn Trent has a target to deliver fifteen percent biodiversity net gain for its capital schemes”
“Between its three most active sites...there was a combined spill time of almost 2 years of sewage discharges in 2024.”
“This new solution will use captured carbon dioxide and use it to recover the goodness that's locked inside waste, turning it into sustainable fertiliser.”
“In 2023, the Trent and its tributaries saw over 292,000 hours of sewage being discharged, as part of 42,000+ spills”
“Severn Trent has been fined over £2 million for polluting the River Trent near Stoke with huge amounts of raw sewage”
“MSCI: AA (Leader), Refinitiv: 76/100, Sustainalytics Risk: 15.”
“For the financial year ended 31 March 2025, Severn Trent PLC was compliant with all relevant provisions of the UK Corporate Governance Code 2024”
If you believe a source has been misread or a newer version exists, submit a challenge.
Where Severn Trent sits among energy supply / utilities peers.
Among the 23 major energy supply / utilities brands we've scored, Severn Trent is tied =9th of 23, with 1 other.
As Severn Trent's score updates, the trajectory will appear here.
This score is not currently being contested.
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No challenges submitted yet. If you have evidence that contradicts this score, you can challenge any question above — cite a public source and we'll review it.
Severn Trent Water is a UK-listed utility providing water collection, treatment, and supply across the English Midlands and Wales. Founded in 1989 and headquartered in Birmingham, it serves 8 million people and operates wastewater treatment across its region. It is a statutory monopoly regulated by Ofwat and the Environment Agency.
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