New York was National Grid’s largest segment in fiscal 2026, bringing in $7.62B of $21.78B (35%).
| Segments [axis] | FY 2016 | FY 2017 | FY 2018 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2026 |
|---|---|---|---|---|---|---|---|---|---|
| Us Regulated | — | — | |||||||
| New York | $6.99B | $7.62B | |||||||
| New England | $4.43B | $4.17B | |||||||
| Uk Electricity Transmission | $1.99B | $5.71B | |||||||
| Uk Electricity System Operator | $4.66B | — | |||||||
| Uk Electricity Distribution | $2.05B | $1.94B | |||||||
| National Grid Ventures | $1.34B | $2.16B | |||||||
| Ngv & Other | — | — | |||||||
| Ng Ventures & Other | — | — | |||||||
| Uk Gas Transmission | — | — | |||||||
| Ng Ventures | — | — | |||||||
| Other | — | $187.00M | |||||||
| Total | $21.45B | $21.78B |
National Grid brought in $21.78B from its six segments in fiscal 2026, the year ended March 31, 2026. National Grid regrouped these segments after fiscal 2023, so the total does not compare directly with that year's $21.45B. New York was the largest at $7.62B (35.0%), ahead of Uk Electricity Transmission at $5.71B (26.2%) and New England at $4.17B (19.2%). The other three segments brought in $4.28B combined.
Compared with fiscal 2023, the previous year with figures, Uk Electricity Transmission grew fastest, up 187.3% to $5.71B, while New England fell the most, down 5.7% to $4.17B.
National Grid stopped reporting Uk Electricity System Operator as a separate segment after fiscal 2023, when it brought in $4.66B.
Us was National Grid’s largest region in fiscal 2026, bringing in $12.22B of $17.69B (69%).
| Geography | FY 2016 | FY 2017 | FY 2018 | FY 2019 | FY 2020 | FY 2022 | FY 2025 | FY 2026 |
|---|---|---|---|---|---|---|---|---|
| Us | $11.67B | $12.22B | ||||||
| Uk | $6.71B | $5.47B | ||||||
| Total | $18.38B | $17.69B |
National Grid brought in $17.69B from its two regions in fiscal 2026, the year ended March 31, 2026. That is less than the $21.78B it reports by segments [axis], so these regions do not cover all of its revenue. Us was the largest at $12.22B (69.1%), ahead of Uk at $5.47B (30.9%).
Compared with fiscal 2025, Us grew 4.7% to $12.22B, while Uk fell 18.4% to $5.47B.
Other Subsidiaries was National Grid’s largest revenue line in fiscal 2017, bringing in $11.44B of $15.04B (76%).
| Consolidated and separate financial statements [axis] | FY 2016 | FY 2017 |
|---|---|---|
| Other Subsidiaries | $10.07B | $11.44B |
| Niagara Mohawk Power Corporation | $2.03B | $2.39B |
| National Grid Gas Plc | $1.24B | $1.38B |
| Consolidation Adjustments | -$128.00M | -$164.00M |
| Total | $13.21B | $15.04B |
National Grid brought in $15.04B from its four revenue lines in fiscal 2017, the year ended March 31, 2017. That was up 13.8% from $13.21B in fiscal 2016. Other Subsidiaries was the largest at $11.44B (76.1%), ahead of Niagara Mohawk Power Corporation at $2.39B (15.9%) and National Grid Gas Plc at $1.38B (9.2%).
Compared with fiscal 2016, Niagara Mohawk Power Corporation grew fastest, up 17.8% to $2.39B. Every revenue line above 2% of revenue grew.
The total is net of Consolidation Adjustments, which took $164.00M off revenue in fiscal 2017.
National Grid (NGG) reports its revenue by segments [axis], by geography and by consolidated and separate financial statements [axis]. In fiscal 2026, New York was its largest segment, bringing in $7.62B (35.0% of the total), followed by Uk Electricity Transmission at $5.71B (26.2%).
New York was National Grid's largest segment in fiscal 2026, bringing in $7.62B, or 35.0% of the $21.78B total across its six segments.
Us was National Grid's largest region in fiscal 2026, bringing in $12.22B, or 69.1% of the $17.69B total across its two regions.
Other Subsidiaries was National Grid's largest revenue line in fiscal 2017, bringing in $11.44B, or 76.1% of the $15.04B total across its four revenue lines.
Us grew faster than Uk in fiscal 2026, up 4.7% from $11.67B to $12.22B. Uk fell 18.4% to $5.47B.
Every figure comes from National Grid's annual financial filings, as reported. Each line keeps the name National Grid gives it, and years follow its fiscal calendar.
National Grid's revenue by segments [axis] goes back to fiscal 2016, with figures through fiscal 2026. The latest four fiscal years are free to view, and the full history is available with a Business Quant subscription.