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Transmission Network Use of System (TNUoS) Tariff Model

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.


Get involved in our TNUoS Tariff Model Training sessions

We run regular in-house training sessions, to give participants hands-on experience at changing the model inputs and generating their own scenarios.

Who are the sessions aimed at?

Users who have some understanding of the TNUoS tariffs, and have little or no previous experience at using the DCLF-ICRP model.

When are our sessions?

Our sessions run from 10:00am-3:00pm

Use the links below to register (password is NGeso504_001)
Wednesday 11 DecemberRegister
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Connection and Use of System Code (CUSC)

The CUSC is the contractual framework for connection to, and use of, the National Electricity Transmission System (NETS).

Find out more

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Balancing Services Use of System (BSUoS) charges

BSUoS recovers the cost of day-to-day operation of the transmission system. These charges apply to suppliers and generators.

Find out more