CMP460: Improving Transmission Connection Asset Charging
What is being proposed
This modification proposes improvements to the framework for charging Transmission Connection Assets. The proposal seeks to socialise costs and cap customer contributions to create a more certain and fair charging methodology.
Current status
Proposal raised on 08 August 2025. CMP460 will be presented to the CUSC Panel on 26 September. The Panel unanimously agreed that CMP460 should follow the Standard Governance route and proceed to a Workgroup. The Panel agreed the Terms of Reference for the Workgroup. Nominations opened on 26 September and closed on 17 October. CMP460 proceeded to Workgroup Consultation which opened on 28 January 2026 and closes 18 February 2026
Details
Timeline
Analysis
NESO proposes to socialise transmission connection asset costs and cap customer contributions through CUSC modification CMP460. The modification seeks to create more certain charging by reducing direct customer charges for connection infrastructure. Workgroup consultation runs 28 January to 18 February 2026.
Why it matters
This shifts connection costs from individual developers to general network users — socialising private benefits while claiming to improve 'fairness'. As such it reduces price signals that would otherwise allocate scarce grid capacity to highest-value users, favouring marginal projects that cannot justify their full infrastructure costs.
Key facts
- •CMP460 proposes socialising transmission connection asset costs
- •Customer contributions would be capped under new methodology
- •Workgroup consultation: 28 January - 18 February 2026
- •Cross-code impact with DCP461
- •Standard governance route approved by CUSC Panel