National Grid operates electricity transmission and distribution networks across the UK and northeastern US, serving millions of customers.
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National Grid publishes comprehensive emissions data with external assurance but its absolute emissions are rising across all scopes. The group is severely off-track against its 2030 target, achieving only 4.4% reduction where 60% is required. US lobbying against clean energy regulation and board roles at obstructive gas associations undermine climate credibility.
National Grid scores 37/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified October 2026.
That places National Grid joint 435th of 847 companies scored, and 12th of 20 in Energy Supply / Utilities.
Where National Grid sits among energy supply / utilities peers.
Among the 20 major energy supply / utilities brands we've scored, National Grid sits 12th of 20.
Its three lowest-scoring questions, and what the evidence didn't show.
Against 2018/19 baseline, Scope 1+2 achieved only 4.4% reduction versus 60% target by 2030.
However, Long Island gas generation assets drive majority of Scope 1 emissions and remain central to business model.
No TNFD-aligned disclosure found; group-level nature footprint not quantified; outcomes primarily at UK sub-entity level.
A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.
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Get in touch →Strongest on Carbon Footprint — Operations and Transparency & Accountability (8/10, 7/10). Weakest on Emissions Trajectory and Energy Source (2/10, 4/10).
The 3 companies in the sector scoring nearest above National Grid.
Enel has strong emissions reporting and a credible downward trajectory, but weakened near-term ambitions and missed SLB targets undermine credibility.
See the breakdown →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.
See the breakdown →Centrica discloses Scope 1, 2, and 3 emissions with DNV verification limited to operational scopes.
See the breakdown →National Grid's score has moved from 39 to 37 across 2 recorded reviews, down 2 points.
Aggregator-citation sweep: broker citations replaced with the primary disclosures they mirror, re-scored through the guarded pipeline under pinned code 9196601.
Initial score at platform launch
The formula and all 12 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale12 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
“Scope 1 and 2 greenhouse gas emissions (ktonnes CO2e): 7,422 (2025) vs 6,852 (2024), change 8%”
“Gross global Scope 1 emissions (ktCO2e): 4,467”
“Scope 1 and 2 greenhouse gas emissions (ktonnes CO2e): 7,422 (2025), 6,852 (2024)”
“Our Scope 3 emissions are calculated and reported in line with the GHG Protocol Corporate Value Chain (Scope 3) Accounting and Reporting Standard”
“100% of purchased electricity is certified renewable”
“In 2025/26 we achieved 62% (2024/25: 36%) of renewable electricity purchased with renewable certification globally”
“22 substation sites surveyed for biodiversity net gain”
“we transported 220,000 tonnes of tunnelling spoil to Pitsea to support habitat restoration”
“All our construction projects that have an impact on the natural environment have made commitments and developed plans that will deliver a measurable improvement to biodiversity by at least 10 per cent”
“it was agreed that the Group was unable to align to the SBTi long-term net zero standard”
“National Grid serves on the 2026 Board of Directors for American Gas Association, a highly obstructive group that continues to oppose building electrification measures”
“National Grid, National Fuel, and NOCO Energy spent a combined $738,863 on lobbying in 2022, including on lobbying against the All-Electric Building Act”
If you believe a source has been misread or a newer version exists, submit a challenge.
National Grid operates electricity transmission and distribution networks across the UK and northeastern US, serving millions of customers. Founded in 1990, it is a major listed utility managing critical energy infrastructure. The company owns gas generation assets on Long Island and operates regulated transmission and distribution businesses, making it a hybrid energy and infrastructure business.
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