Skip to main content

TNUoS Charges Change Calculator

Calculate how the incoming TNUos changes will impact your business with the below Calculator

In September 2025, the National Energy System Operator (NESO) published its forecast outlining expected changes to Transmission Network Use of System (TNUoS) charges for the 2026–2030 period. The projections indicate that NESO aims to recover approximately £3.5 billion through customer billing to support essential upgrades and expansion of the transmission network. As a result, customers are likely to see a notable rise in standing charges over the coming years.

TNUoS Calculator

Enter your supply information below

This calculator is to be used for guidance only and is subject to change in line with future publications & amendments.

Band –
Daily Cost Increase –
Estimated Annual Cost Increase –

Unsure how this will inpact your business? Contact us today using our Chat