ScottishPower has structurally exited fossil fuel generation and now sources 100% renewable electricity, with parent Iberdrola holding SBTi-validated net-zero targets. However, the company consolidates emissions reporting into Iberdrola's group figures, obscuring UK-specific transparency. Biodiversity targets are forward-looking, waste circularity unverified, and subsidiary-level data gaps limit independent scrutiny.
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SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Energy Source and Targets & Commitments (9/10, 8/10). Weakest on Water Impact and Resource Use & Waste (4/10, 5/10).
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Among the 17 major energy supply / utilities brands we've scored, ScottishPower sits 2nd of 17.
Score history begins 5 April 2026.
As ScottishPower's score updates, the trajectory will appear here.
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ScottishPower is a major UK electricity supplier and network operator owned by Spanish utility Iberdrola. Founded in 1990 and headquartered in Glasgow, it operates generation assets (predominantly offshore and onshore wind), distribution networks across central and southern Scotland, and retail energy services for 3+ million customers.
Parent company holding SBTi validation and consolidated group reporting that obscures UK subsidiary performance.
View breakdown →Scottish peer utility with comparable renewable transition trajectory and network operation model.
View breakdown →UK transmission and distribution network operator facing similar biodiversity and transparency accountability standards.
View breakdown →European utility peer with group-level SBTi targets and subsidiary reporting consolidation challenges.
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