Charging documentation
Our charging documentation page is where you can now find all of our charging statements and policy developments along with all the guidance documents and webinars you need if you're new to charging.
In this section you will find guidance materials to help you understand how, when and what you'll be charged.
The methodology we use to set tariffs and calculate charges is in the Connection and Use of System Code (CUSC), Section 14.
TNUoS guidance
| Name | Published Sort ascending |
|---|---|
| Guidance - TNUoS Onshore Locational Security Factor | 21 Dec 2020 |
| TNUoS DCLF ICRP (TnT) Model Training - Presentation | 12 Oct 2020 |
| TNUoS tariffs for suppliers (includes link to recorded webinar) | 12 Jul 2019 |
| TNUoS charges for generators | 4 Apr 2019 |
| TNUoS for offshore generators and the OFTO regime | 20 Dec 2018 |
| TNUoS for new suppliers | 13 Dec 2018 |
| TNUoS charging and billing timeline | 7 Nov 2018 |
BSUoS guidance
Connection charging guidance
AAHEDC guidance
General charging guidance
STAR Billing System Guidance
Archive forum materials
Archive documents
Archive forum materials
Archive forum materials
Archive forum materials
The charging statements describe our charges and the methodologies behind them.
Further information on the methodologies that underpin the charging statements can be found in two statements:
- The Use of System Charging Methodology Statement and the Connection Charging Methodology Statement.
- These statements are both included within Section 14 of the Connection and Use of System Code (CUSC).
Current Charging Statements
Archive
| Name | Published Sort ascending |
|---|---|
| Issue 10 Revision 1 - 1 April 2014 | 31 Mar 2014 |
| Issue 6 Revision 1 | 23 Sep 2013 |
| TNUoS Demand Zones Map - Geographical | 23 Sep 2013 |
| Issue 9 Revision 0 - 2nd May 2013 | 23 Sep 2013 |
| National Grids request to amend the form of the Statement of Use of System Charges | 23 Sep 2013 |
| Issue 6 Revision 0 | 23 Sep 2013 |
| Issue 7 Revision 0 | 23 Sep 2013 |
| TNUoS Generation Zones Map - Geographical | 23 Sep 2013 |
| Ofgem letter of approving the form of the Statement of Use of System Charges | 23 Sep 2013 |
| Issue 9 Revision 1-9 August 2013 Updated from 1 April | 23 Sep 2013 |
In this section you will find consultation documents and policy developments and decisions.
The methodology we use to set tariffs and calculate charges is in the Connection and Use of System Code (CUSC), Section 14.
Charging methodology policy decisions
These are policy decisions documents relating to TNUoS charging methodology that are not codified within the CUSC.
Open letters, consultations and notices
These documents are open letters and informal consultations relating to TNUoS charges.
Tertiary Open Letter
More from charging
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