In 2025, National Grid completed a corporate carbon footprint assessment and publicly disclosed its greenhouse gas (GHG) emissions according to the GHG Protocol, covering Scope 1 (direct emissions from owned or controlled sources), Scope 2 (indirect emissions from purchased energy) and Scope 3 (indirect emissions across the value chain).
National Grid has also provided a category-level breakdown for 6 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.
Metric (tCO2e) | 2025 | 2024 | 2023 | 2022 - 2017 |
---|---|---|---|---|
Total Scope 1 | 0000000 | Copy restricted. Please purchase to unlock this data. | Copy restricted. Please purchase to unlock this data. | 0000000 |
Total Scope 2 | ||||
Market-Based | 0000000 | Copy restricted. Please purchase to unlock this data. | Copy restricted. Please purchase to unlock this data. | 0000000 |
Location-Based | 0000000 | Copy restricted. Please purchase to unlock this data. | Copy restricted. Please purchase to unlock this data. | 0000000 |
Unspecified Calculation Method | 0000000 | Copy restricted. Please purchase to unlock this data. | Copy restricted. Please purchase to unlock this data. | 0000000 |
Total Scope 3 | 0000000 | Copy restricted. Please purchase to unlock this data. | Copy restricted. Please purchase to unlock this data. | 0000000 |
This table provides a simplified preview of selected GHG emissions data points. To access the complete dataset with full disclosures, detailed breakdowns, and source traceability, create a free account to view purchase options.
In 2025, the total operational greenhouse gas (GHG) emissions of National Grid amounted to 7,422,000 metric tons of CO2 equivalent. This figure includes both direct emissions from owned or controlled sources (Scope 1) and indirect emissions from purchased energy (Scope 2).
Compared to 2024, the total operational greenhouse gas (GHG) emissions of National Grid increased by 8.32%, suggesting that the company faced challenges in reducing its emissions from its core operations.
In 2025, the total Scope 1 emissions of National Grid were 4,467,000 metric tons of COâ‚‚ equivalent (tCOâ‚‚e).
Since 2019, National Grid's Scope 1 emissions have remained relatively, stable, indicating that National Grid's emissions have plateaued with no significant change in its operational footprint.
Compared to the previous year (2024), National Grid's Scope 1 emissions increased by 12.01%, suggesting that the company faced challenges in reducing emissions from its directly owned or controlled operations.
In 2025, National Grid reported Scope 2 greenhouse gas (GHG) emissions of 2,952,000 tCOâ‚‚e using the market-based method and 2,955,000 tCOâ‚‚e using the location-based method.
Compared to the previous year (2024), National Grid's Scope 2 emissions (Location-Based) have remained relatively stable, indicating that National Grid 's emissions have plateaued with no significant change in its energy consumption footprint.
In 2025, National Grid reported its Scope 2 emissions using the market-based method and using the location-based method.
In 2025, National Grid reported 28,435,000 metric tons of COâ‚‚ equivalent (tCOâ‚‚e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.
The 2025 disclosure of National Grid includes a breakdown across 5 of the 15 Scope 3 categories defined by the GHG Protocol, matching the level of disclosure in 2024, demonstrating consistent Scope 3 emissions reporting coverage year over year.
In 2025, National Grid reported total Scope 3 emissions of 28,435,000 metric tons of COâ‚‚ equivalent (tCOâ‚‚e).
Approximately 22.47% of these emissions originated from upstream activities such as purchased goods and capital goods, while 77.53% came from downstream activities like product use, distribution, and end-of-life treatment.
Since 2019, National Grid's Scope 3 emissions have decreased by 11.97%, reflecting a declining long-term trend in Scope 3 emissions over time.
Compared to the previous year (2024), National Grid's Scope 3 emissions remained relatively stable, indicating that National Grid 's emissions have plateaued with no significant change in its value chain footprint.
In 2025, National Grid reported emissions for 5 out of the 15 Scope 3 categories defined by the GHG Protocol.
This partial disclosure allows for some insight into the company's indirect impacts.
In 2025, the largest contributors to National Grid's Scope 3 emissions were:
In 2025, National Grid reported a total carbon footprint of 35,857,000 metric tons of COâ‚‚ equivalent (tCOâ‚‚e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 4.73% increase compared to 2024, suggesting a rise in emissions across its operations or value chain.
The largest contributor to National Grid's total carbon footprint was Scope 3 emissions, accounting for 79.3% of the company's total carbon footprint, followed by Scope 1 emissions at 12.46%.