Decision on urgency treatment of CMP430: Adjustments to TNUoS Charging from 2025 to support the Market Wide Half Hourly Settlement (MHHS) Programme
Summary
Ofgem decision on urgency for CMP430, which adjusts TNUoS charging from 2025 to support Market-Wide Half-Hourly Settlement implementation. Changes how transmission charges interact with the move to half-hourly settlement.
Why it matters
TNUoS is the largest component of network charges. Adjusting it for MHHS implementation affects how costs are allocated across demand and generation. Getting this wrong could distort locational signals or create unintended cost shifts.
Areas affected
Related programmes
Memo
Decision on urgency treatment of CMP430: Adjustments to TNUoS Charging from 2025 to support the Market Wide Half Hourly Settlement (MHHS) Programme | Ofgem Please enable JavaScript in your web browser to get the best experience. BETA This site is currently in BETA. Help us improve by giving us your feedback . Close alert: Decision on urgency treatment of CMP430: Adjustments to TNUoS Charging from 2025 to support the Market Wide Half Hourly Settlement (MHHS) Programme Publication type: Code modification Publication date: 1 March 2024 Topic: Energy codes Subtopic: Connection and use of system code (CUSC) Print this page Share the page Share on Facebook Share on Twitter Share on LinkedIn We have agreed with the Panel's view that CMP430 satisfies Ofgem's urgency criteria and should be treated as an urgent code modification. Main document CMP430: Adjustments to TNUoS Charging from 2025 to support the Market Wide Half Hourly Settlement (MHHS) Programme – decision on urgency [PDF, 158.89KB] Print this page Share the page Share on Facebook Share on Twitter Share on LinkedIn Close