Anglian Water Services

Does the core business genuinely avoid or reduce emissions, or build climate resilience? Share of revenue that is actually 'green'. Fossil-dependent models score low.

Anglian Water operates in the UK's driest region, making water resilience intrinsically climate-critical, and has achieved a 63% reduction in capital carbon since 2010 and raised over £1.6bn in green finance, but its core operations remain highly energy-intensive and its sewage spill record actively degrades the water environment it claims to protect.

Credible, science-based targets (SBTi), a real net-zero plan with progress to date, and CDP disclosure — not just a dated press release.

Anglian Water has a stated net-zero by 2030 ambition backed by £1.6bn in green finance and TCFD-aligned disclosures, and received a CDP A- (Leadership band), but no independently SBTi-validated targets were confirmed in publicly available sources, limiting the credibility of the headline pledge.

Operational footprint, labour and social practices, and governance quality across the company's own operations and supply chain.

The company publishes integrated ESG reports, holds a GRESB 5* infrastructure rating and 100% BITC purpose score, but Ofwat's 2025 investigation found Anglian Water failed to operate, maintain and upgrade wastewater assets adequately with inadequate senior management oversight, and the Environment Agency separately flagged a notable leakage increase of 2.7% in 2024-25, undermining the social and environmental pillars of its ESG narrative.

Quality of disclosure, independent third-party verification, and how much hard data backs the company's claims.

Anglian Water publishes annual integrated reports with TCFD disclosures, holds a CDP A- rating placing it in the top 5.5% of disclosers, and participates in the Toitū Carbon Reduce supply-chain programme with third-party verification, representing a meaningfully above-average disclosure standard for the UK water sector.

Controversies, litigation, pollution, fossil-fuel lobbying, conflict-zone involvement and governance scandals. Higher means cleaner.

Ofwat proposed a £62.8m enforcement package in July 2025 after finding Anglian Water breached legal obligations through excessive sewage spills from storm overflows, with investigators concluding the company failed to maintain adequate board-level oversight; Ofwat had opened its enforcement case as far back as 2022, indicating persistent and systemic — not isolated — failures.