PM0154: STCP16-1 System Access Reform. Investment Planning Process - Data on Constraint Costs.

The proposal seeks to amend STCP 16-1 Paragraphs 4.2.7 and 4.2.8 aims to enhance investment planning for UK electricity transmission projects. Key improvements include clearer data requirements, incorporation of constraint costs, defined response times, and a streamlined Project Listing Document (PLD) in Appendix C. These changes promote efficiency, transparency, and regulatory compliance, supporting cost-effective, timely delivery and system reliability, while aligning with national decarbonisation goals and benefitting both industry stakeholders and consumers.