NATIONAL ENERGY SYSTEM OPERATOR LIMITED
Company number: 11014226
Reporting period:
1 April 2025 to 1 September 2025
Report filed on:
30 October 2025
Approved by:
Charles Pate
Contracts and payments
Do any of this business's construction contracts with its suppliers include retention clauses? No
Payment statistics
Average time taken to pay invoices: 20 days
Total value paid:
- within 30 days: £3,325,000,000 (79%)
- in 31 to 60 days: £800,000,000 (19%)
- in 61 days or more: £84,000,000 (2%)
Invoices paid:
- within 30 days: 79%
- in 31 to 60 days: 19%
- in 61 days or more: 2%
Late and disputed:
- total value of payments due in the reporting period which have not been paid within the agreed period: £43,000,000
- payments due in the reporting period which have not been paid within the agreed period: 11%
Payment terms
Shortest standard payment periods
0 days
Longest standard payment period
42 days
Standard payment terms
30 days
Were there any changes to the standard payment terms in the reporting period?
Reduced standard terms from 42 days to 30 days.
Were suppliers notified or consulted about these changes before they were made?
No
Maximum contractual payment period agreed
42 days
n/a
Any other information about payment terms
n/a
Dispute resolution process
All disputes raised will be handled by a combination of the dedicated Purchase to Pay team, the Procurement team and the business unit working with the supplier.
Other payment information
Has this business signed up to a code of conduct or standards on payment practices? If so, which?
For example, signatories to The Fair Payment Code must commit to paying 95% of their invoices within 60 days.
Yes, this business has signed up to: Prompt Payment Code
Does this business offer e-invoicing in relation to qualifying contracts?
This is where suppliers can electronically submit and track invoices. It's not just allowing suppliers to email them an invoice.
Yes
Does this business offer supply chain finance?
This is where a supplier who has submitted an invoice can be paid by a third-party finance provider earlier than the agreed payment date. The business would then pay the finance provider the invoiced sum.
No
Under its payment practices and policies, can this business deduct sums from payments under qualifying contracts as a charge for remaining on a supplier list?
No
During the reporting period, did the business deduct sums from payments as a charge for remaining on a supplier list?
No