Transmission Network Use of System (TNUoS) charges recover the cost of installing and maintaining the transmission system in England, Wales, Scotland and Offshore.

TNUoS Tariff Model

(DCLF ICRP Transport Model)

We publish the DC Load Flow Investment Cost Related Pricing (DCLF ICRP) Transport Model which allows users to undertake their own sensitivity analysis of generation and demand tariffs under different scenarios.

If you'd like a copy of the DCLF ICRP Transport Model, please contact us.

For more detailed information on the DCLF ICRP, please see Chapter 2 of The Statement of the Use of System Charging Methodology in Section 14 of the CUSC.

Transport model inputs

Electricity Ten Year Statement (ETYS) annual publications (Appendix G – Week 24 Demand data & Appendix F – Generator TEC register) are used as key inputs for the calculation of TNUoS tariffs.