Gas transmission price control financial model: RIIO-2
Related links
- ESO Price Control Financial Model
- GD2 Price Control Financial Model
- ET2 Price Control Financial Model
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This model is used to calculate the amount of money network companies can collect under the RIIO-2 price control for the period 1 April 2021 to 31 March 2026.
Access the latest and historical versions for the RIIO-GT2 price control period.
Ofgem is required to update and publish the model annually as part of the Annual Iteration Process (AIP), under Part D of the electricity transmission special condition 8.1. We name these ‘GT2 PCFM for AIP 202X’ for each respective year.
Part C of special condition 8.1 provides for Ofgem to make modifications to the GT2 PCFM. These modifications are published during each regulatory year and are shown in the subsidiary documents list with the suffixes ‘C01,’ ‘C02,’ and so on.
The version of the PCFM published following an AIP is titled ‘GT2 PCFM November 202X’ until regulatory year 2022. Starting from regulatory year 2023, the version of the PCFM published following an AIP is titled ‘GT2 PCFM AIP 202X’.
Main document
[GT2 PCFM C06 (published 1 July 2025) [XLSM, 1.21MB]
](https://www.ofgem.gov.uk/sites/default/files/2025-07/GT2-PCFM-C06.xlsm)
Subsidiary documents
[GT2 PCFM AIP 2024 (published 31 January 2025) [XLSM, 1.21MB]
](https://www.ofgem.gov.uk/sites/default/files/2025-02/GT2-PCFM-AIP-2024.xlsm)
[Republished GT2 PCFM following the Annual Iteration Process 2024 (published 25 May 2025) [XLSM, 1.22MB]
](https://www.ofgem.gov.uk/sites/default/files/2025-07/Republished-GT2-PCFM-AIP-2024.xlsm)
[GT2 PCFM for use in AIP2024 (published on 26 July 2024) [XLSM, 1.21MB]
](https://www.ofgem.gov.uk/sites/default/files/2024-07/GT2_PCFM_for_use_in_AIP2024_0.xlsm)
[GT2 PCFM CO5 (published 31 May 2024) [XLSM, 1.19MB]
](https://www.ofgem.gov.uk/sites/default/files/2024-07/GT2_PCFM_C05_published_31_May_2024.xlsm)
[Re-published GT2 Price Control Financial Model following the Annual Iteration Process 2023 (published 30 May 2024) [XLSM, 1.21MB]
](https://www.ofgem.gov.uk/sites/default/files/2024-07/Republished_GT2_PCFM_AIP_2023.xlsm)
[GT2 PCFM (published 30 January 2024) [XLSM, 1.20MB]
](https://www.ofgem.gov.uk/sites/default/files/2024-02/GT2%20PCFM%20AIP%202023.xlsm)
[GT2 PCFM AIP 2023 (published 11 Aug 2023) [XLSM, 1.15MB]
](https://www.ofgem.gov.uk/sites/default/files/2023-08/GT2%20PCFM%20for%20AIP%202023.xlsm)
[GT2 PCFM C04 (published 05 June 2023) [XLSM, 1.15MB]
](https://www.ofgem.gov.uk/sites/default/files/2023-08/GT2%20PCFM%20C04.xlsm)
[Re-published GT2 Price Control Financial Model following the Annual Iteration Process 2022 (published 30 May 2023) [XLSM, 1.16MB]
[GT2 PCFM November 2022 (published 13 December 2022) [XLSM, 1.15MB]
](https://www.ofgem.gov.uk/sites/default/files/2023-01/GT2%20PCFM%20November%202022.xlsm)
[GT2 PCFM C03 (published 11 November 2022) [XLSM, 1.14MB]
[GT2 PCFM for AIP 2022 (published 22 July 2022) [XLSM, 1.66MB]
](https://www.ofgem.gov.uk/sites/default/files/2022-07/GT2%20PCFM%20for%20AIP%202022.xlsm)
[GT2 PCFM C02 (published June 01 2022) [XLSM, 1.65MB]
](https://www.ofgem.gov.uk/sites/default/files/2022-06/GT2%20PCFM%20C02_0.xlsm)
[Re-published GT2 Price Control Financial Model following the Annual Iteration Process 2021 (published 4 February 2022) [XLSM, 1.65MB]
[GT2 PCFM (published 30 November 2021) [XLSM, 1.65MB]
](https://www.ofgem.gov.uk/sites/default/files/2022-02/GT2%20PCFM%20November%202021_0.xlsm)
[GT2 PCFM for AIP 2021 (published 3 September 2021) [XLSM, 1.72MB]
](https://www.ofgem.gov.uk/sites/default/files/2021-11/GT2%20PCFM%20for%20AIP%202021.xlsm)
[GT2 PCFM C01 (published 30 July 2021) [XLSM, 1.72MB]
](https://www.ofgem.gov.uk/sites/default/files/2021-11/GT2%20PCFM%20C01.xlsm)
[GT2 PCFM C00 (published 28 May 2021) [XLSM, 1.71MB]
](https://www.ofgem.gov.uk/sites/default/files/2021-11/GT2%20PCFM%20C00.xlsm)
[GT2 PCFM Final Determinations (published 3 Feb 2021) [XLSM, 1.70MB]
](https://www.ofgem.gov.uk/sites/default/files/2021-11/GT2%20PCFM%20Final%20Determinations.xlsm)
Related links
- ESO Price Control Financial Model
- GD2 Price Control Financial Model
- ET2 Price Control Financial Model