We are becoming a separate company

In April 2019, the Electricity System Operator is becoming a separate company within the National Grid Group. Find out more about what this change will mean.

Connection and Use of System Code (CUSC)

The Connection and Use of System Code (CUSC) is the contractual framework for connection to, and use of, the National Electricity Transmission System (NETS).

ID Name Status Last updated Sort ascending
CMP285 CUSC Governance Reform – Leveling the Playing Field Current 18 Jan 2019
CMP295 Contractual Arrangements for Virtual Lead Parties (Project TERRE) Current 18 Jan 2019
CMP289 Consequential change to support the introduction of explicit charging arrangements for customer delays and backfeeds via CMP288 Current 11 Jan 2019
CMP288 Explicit charging arrangements for customer delays and backfeeds Current 11 Jan 2019
CMP280 ‘Creation of a New Generator TNUoS Demand Tariff which Removes Liability for TNUoS Demand Residual Charges from Generation and Storage Users' Current 7 Jan 2019
CMP303 Improving local circuit charge cost-reflectivity Current 21 Dec 2018
CMP292 Introducing a Section 8 cut-off date for changes to the Charging Methodologies Current 20 Dec 2018
CMP294 National Grid Legal Separation changes to CUSC Section 14 Current 6 Dec 2018
CMP293 National Grid Legal Separation changes to CUSC sections, Exhibits & Schedules (non charging) Current 6 Dec 2018
CAP008 Codification Errors Concluded 28 Nov 2018