Question to the Department for Transport:
To ask the Secretary of State for Transport, how many kilometres/miles of the rail network have been electrified in (a) England, (b) Wales, (c) Scotland, (d) Northern Ireland and (e) the UK in each year of the last 10 years.
The Office of Rail and Road publishes information about delivered electrification, which can be found here: https://dataportal.orr.gov.uk/statistics/infrastructure-and-emissions/rail-infrastructure-and-assets/table-6320-infrastructure-on-the-mainline/.
Responsibility for rail infrastructure in Scotland and Northern Ireland is a devolved matter.