Skip to main navigation

Our response to coronavirus

Find out how we're working to keep the lights on in Great Britain throughout COVID-19.
Read more
Home
ESO
  • ESO
  • Group PLC
  • NG in the UK
  • NG in the US
  • About us
  • Careers
  • Investors
  • Data Portal
  • News
  • Contact us
  • Back
  • Who we are
    • Back
    • Home
    • Who we are
    • What we do
    • Our people
    • How we're organised
    • Meet the board
  • Electricity explained
    • Back
    • Home
    • Electricity explained
    • Monthly Insights
    • Zero carbon explained
    • Carbon intensity explained
    • Electric cars explained
    • Power cuts explained
  • Future of energy
    • Back
    • Home
    • Future of energy
    • Future Energy Scenarios (FES)
    • Innovation
      • Back
      • Future of energy
      • Innovation
      • Strategy
      • News and events
      • Get involved
    • Projects
      • Back
      • Future of energy
      • Projects
      • Early Competition Plan
      • Offshore Coordination Project
      • Distributed ReStart
  • Industry information
    • Back
    • Home
    • Industry information
    • Connections
      • Back
      • Industry information
      • Connections
      • Our role in connections
      • The connections offer process
      • Your connections journey
      • Reports and registers
      • Use of System (UoS) and Virtual Lead Party (VLP)
      • Connections help and support
    • Balancing Services
      • Back
      • Industry information
      • Balancing Services
      • Frequency response services
      • Reserve services
      • System security services
      • Reactive power services
      • Trading
      • Settlements
      • Balancing Mechanism Wider Access
      • Get involved
    • Charging
      • Back
      • Industry information
      • Charging
      • Balancing Services Use of System (BSUoS) charges
      • Transmission Network Use of System (TNUoS) charges
      • Assistance for Areas with High Electricity Distribution Costs (AAHEDC)
      • Connection charges
      • Charging guidance
      • Charging policy developments
      • Charging statements
      • Submit a charging query
    • Codes Homepage
      • Back
      • Industry information
      • Codes Homepage
      • Connection and Use of System Code (CUSC)
      • Grid Code (GC)
      • System Operator Transmission Owner Code
      • Security and Quality of Supply Standard (SQSS)
      • Balancing Settlement Code (BSC)
      • European Network Codes (ENC)
      • Codes calendar
      • Code changes: Beginner's Guide
      • About the Codes Team
    • Industry Data and Reports
      • Back
      • Industry information
      • Industry Data and Reports
      • System Incidents Report
      • Balancing services performance monitoring report
      • Data finder and explorer
      • Forecast volumes and costs
      • GB Electricity System Operator Daily Reports
      • System balancing reports
      • Monthly transmission loss data (4l)
      • System constraints
      • Voltage costs
    • Keeping the lights on throughout coronavirus
    • Accelerated Loss of Mains applications
    • Our consultation responses
  • Our strategy
    • Back
    • Home
    • Our strategy
    • Forward Plan
      • Back
      • Our strategy
      • Forward Plan
      • How we're performing
    • Annual report and accounts
      • Back
      • Our strategy
      • Annual report and accounts
      • Annual report 2019/20
    • RIIO
      • Back
      • Our strategy
      • RIIO
      • RIIO-2 final business plan
      • Future planning 2021 onwards
      • Have your say on our future plan
      • RIIO-2 Stakeholder Group
  • Research & publications
    • Back
    • Home
    • Research & publications
    • Whole electricity system
    • Summer Outlook
    • Winter Outlook
    • ​Electricity Ten Year Statement (ETYS)
    • Network Options Assessment (NOA)
      • Back
      • Research & publications
      • Network Options Assessment (NOA)
      • Network Development Roadmap
    • System Operability Framework (SOF)
    • Future of balancing services
    • Transmission performance reports
    • Regional Development Programmes

Breadcrumb

  • Industry information
  • Codes Homepage

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).

Further enquiries

  • [email protected]
Overview Mods Calendar Meeting docs Panel Code Documents
The CUSC Exhibits to the CUSC Schedules to the CUSC

The CUSC

PublishedName
23 Dec 2020Complete CUSC
1 Apr 2019CUSC Table of Contents v1.16
23 Dec 2020CUSC Index of Revisions v1.126
6 Dec 2019CUSC Section 1- Applicability of Sections and Related Agreements Structure v1.14
23 Dec 2020CUSC Section 2 - Connection v1.16
23 Dec 2020CUSC Section 3 - Use Of System v1.21
25 Jun 2020CUSC Section 4 - Balancing Services v1.24
6 Dec 2019CUSC Section 5 - Events of Default, Deenergisation, Disconnection v1.12
8 Sep 2020CUSC Section 6 - General Provisions v1.27
1 Aug 2014CUSC Section 7 - CUSC Dispute Resolution v1.3
25 Jun 2020CUSC Section 8 - CUSC Modification v1.31
1 Apr 2019CUSC Section 9 - Interconnectors v1.12
1 Apr 2019CUSC Section 10 - Transition Issues v1.7
14 Dec 2020CUSC Section 11- Interpretation and Definitions v1.82
14 Jan 2014CUSC Section 12 - BETTA Transition Issues v1.4
14 Jan 2014CUSC Section 13 - Enabling Works v1.0
14 Aug 2020CUSC Section 14 - Charging Methodologies v1.29
23 Dec 2020CUSC Section 15 - User Commitment Methodology v1.7
18

Exhibits to the CUSC

PublishedName
1 Apr 2019CUSC Exhibit A - Accession Agreement v1.3
1 Apr 2019CUSC Exhibit R - BELLA Offer v1.4
1 Apr 2019CUSC Exhibit M - Secured Amount Statement v1.2
1 Apr 2019CUSC Exhibit B - Connection Application v1.16
1 Apr 2019CUSC Exhibit C - Connection Offer v1.9
1 Apr 2019CUSC Exhibit D - BEGA Application v1.10
1 Apr 2019CUSC Exhibit E - Use of System Offer v1.7
6 Dec 2019CUSC Exhibit F - Use of System Application v1.12
1 Apr 2019CUSC Exhibit G - Use of System Supply Offer and Confirmation Notice v1.5
1 Apr 2019CUSC Exhibit H - Use of System Interconnector Offer and Confirmation Notice v1_6
1 Apr 2019CUSC Exhibit I - Modification Application v1.13
1 Apr 2019CUSC Exhibit J - Modification Offer v1.6
1 Apr 2019CUSC Exhibit K - Modification Notification v1.5
10 Dec 2013CUSC Exhibit L - Bi-Annual Estimate for Bilateral Agreement v1.1
1 Apr 2019CUSC Exhibit MM1 - Cancellation Charge Statement v3.0
1 Apr 2019CUSC Exhibit MM2 - Cancellation Charge Secured Amount v2.0
11 Jan 2014CUSC Exhibit MM3 - Notification of Fixed Attributable Works Cancellation Charge V1.1
1 Apr 2019CUSC Exhibit N - Notice of Drawing v1.2
1 Apr 2019CUSC Exhibit O - Interface Agreements Part I B - Relevant Transmission Licensee Assets on User Land in Scot
1 Apr 2019CUSC Exhibit O - Interface Agreements Part II B - User Assets on Relevant Transmission Licensee Land v1.2

Pagination

  • Current page 1
  • Page 2
  • Next page
  • Last pageLast
30

Schedules to the CUSC

PublishedName
7 Sep 2020CUSC Schedule 1 List of Users - September 2020
1 Apr 2019CUSC Schedule 2 Exhibit 3A - Offshore Construction Agreement v1.6
1 Apr 2019CUSC Schedule 2 Exhibit 1 - Bilateral Connection Agreement v1.9
1 Apr 2019CUSC Schedule 2 Exhibit 2 - Bilateral Embedded Generation Agreement v1.6
23 Dec 2020CUSC Schedule 2 Exhibit 3 – Construction Agreement v1.13
1 Apr 2019CUSC Schedule 2 Exhibit 4 - Mandatory Services Agreement v1.7
1 Apr 2019CUSC Schedule 2 Exhibit 5 - Bilateral Embedded Licence exemptable Large power station Agreement v1.8
1 Apr 2019CUSC Schedule 2 Exhibit 6 - Transmission Related Agreements regarding Bid Price v1.2
10 Dec 2013CUSC Schedule 3 Part 1 - Balancing Services Market Mechanisms - Reactive Power v1.7
13 Jan 2020CUSC Schedule 2 Exhibit 7 - Virtual Lead Party Agreement v2.0
10
National Grid ESO
© National Grid 2021

Connect with us

  • Twitter
  • LinkedIn
  • Youtube
  • Connect with us
    • Media centre
    • Work for us
  • About us
    • Compliance Statements
  • Privacy policy
    • Cookie policy
    • Terms and conditions
    • Security
    • Modern Slavery Statement
© National Grid 2021
Top