Iberdrola scores 38/100 (Below expectations) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified May 2026.
That places Iberdrola joint 324th of 691 companies scored, and joint 12th of 22 in Energy Supply / Utilities.
Iberdrola leads European utilities on emissions and renewables—84% zero-carbon generation, SBTi-validated net-zero by 2039—but absolute emissions exceed 50 Mt CO₂e and gas operations remain material. Corporate espionage investigation and regulatory fines in US subsidiaries expose governance gaps. Transparency is strong; the transition pathway is real but incomplete.
This score is built from public data only. If your practice is stronger than your disclosure, submit evidence for review — or challenge any question, free.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Carbon Footprint — Operations and Targets & Commitments (8/10, 8/10). Weakest on Controversies & Red Flags and Resource Use & Waste (5/10, 5/10).
21 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.
If you believe a source has been misread or a newer version exists, submit a challenge.
Where Iberdrola sits among energy supply / utilities peers.
Among the 22 major energy supply / utilities brands we've scored, Iberdrola is tied =12th of 22, with 1 other.
Score history begins 4 April 2026.
As Iberdrola's score updates, the trajectory will appear here.
We're backfilling historical scores for FTSE 100 and S&P 100 companies over the coming weeks.
This score is not currently being contested.
Every challenge is published. We'd rather be corrected than wrong — that's the whole point.
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.
Iberdrola is Spain's largest electricity utility and Europe's leading renewable energy producer, with 40,721 employees and €54B annual revenue. The company generates, distributes, and retails electricity and gas across Spain, Portugal, the UK, US, Brazil, and Mexico. Founded in 1992 as a regional consolidator, it is now a major player in offshore wind and solar development.
Peer utility with higher renewable penetration and cleaner governance track record; useful renewable transition comparison.
View breakdown →Italian utility with similar scale and geographic diversification; comparable SBTi targets and biodiversity initiatives.
View breakdown →Oil major attempting energy transition; highlights contrast between incumbent fossil presence and renewable pivot commitment.
View breakdown →Integrated energy company with gas business overlap; similar portfolio tension between fossil fuels and green investment.
View breakdown →Email alerts when a rubric question is verified, a challenge is resolved, or the overall score changes.
One email, every Sunday. Score changes, new research, the stories behind the numbers. Free.
No spam. Unsubscribe in one click.
Checking a company?
Search free →Been scored?
See what's behind your number →Nobody can pay us to change a number.