v3.26.3
Exchange rates (Tables)
6 Months Ended
Sep. 30, 2026
Foreign exchange rates [abstract]
Schedule of average and closing foreign exchange rates
The US dollar to pound sterling exchange rates used were:
30 September
2026
2025
Year ended 31 March 2026
Closing rate applied at period end
1.33
1.34
1.32
Average rate applied for the period
1.34
1.35
1.34
X
- References
No definition available.
+ Details
Name:
ifrs-full_ForeignExchangeRatesAbstract
Namespace Prefix:
ifrs-full_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Schedule of Average and Closing Foreign Exchange Rates [Table Text Block]
+ References
No definition available.
+ Details
Name:
nggtf_ScheduleOfAverageAndClosingForeignExchangeRatesTableTextBlock
Namespace Prefix:
nggtf_
Data Type:
dtr-types1:textBlockItemType
Balance Type:
na
Period Type:
duration