United Utilities Group PLC

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.

Water/wastewater operations are inherently energy-intensive and emit process GHGs (N₂O, methane), but the core business also delivers genuine climate-adaptation value through catchment management, water-security infrastructure (e.g., the £4.3bn Haweswater Aqueduct Resilience Programme), and storm-overflow reduction — a mixed picture that sits firmly in the adaptation rather than mitigation bucket.

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

United Utilities achieved CDP A- on climate change and A on supplier engagement in 2023, discloses under both TCFD and TNFD, and has GHG reduction ambitions; however, no confirmed SBTi-validated near-term or net-zero targets were found in public records for United Utilities Group PLC specifically, which caps this score materially below best-in-class.

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

MSCI AA (Leader), Sustainalytics risk 13 (negligible, 5th out of 682 utilities), ISS Prime, and a maximum four-star Environment Agency environmental performance rating in 2023 place United Utilities at the top of its UK peer group; Ofwat's £13bn AMP8 allowance funds major environmental upgrades, but executive bonus blocks for pollution failings and sector-wide criticism of storm-overflow performance temper the score.

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

GHG inventory and underlying energy data are independently assured for 2024/25; the Annual Report has followed the International <IR> Framework since 2015; disclosures align with TCFD, TNFD, WEF, and SASB frameworks; CDP participation is active and at leadership level — this is among the strongest disclosure stacks in the UK utility sector.

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

Ofwat mandated executive bonus blocks at United Utilities Water in November 2025 for pollution-related performance failures, and Surfers Against Sewage caution that even its best-in-class 4-star EA rating 'isn't saying much' in a structurally broken privatised sector — material reputational and regulatory risk remains despite relative outperformance versus peers.