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    Large customer standards, manuals & fact sheets

    Read our range of reference documents and fact sheets for information about Large Customer electricity connections.

    You can find more technical documents in our Document library.

    Manuals and policies

    Connection Policy 2025-2030

    01/07/2025 .pdf 659.6 KB

    Major Customer Connection Manual

    25/10/2022 .pdf 593.7 KB

    Enquiry and application forms

    Major Customer Connection Enquiry Form (MCF003)

    05/06/2024 .pdf 300.2 KB

    Major Customer Connection Application Form (MCF004)

    03/06/2025 .pdf 272.4 KB

    Standards

    STNW1174 Standard for Low Voltage EG Connections

    27/02/2025 .pdf 2.0 MB

    STNW1175 Standard for HV EG Connections

    14/03/2025 .pdf 2.3 MB

    STNW1179 Standard for Plant Energisation

    20/08/2025 .pdf 1.3 MB

    STNW3510 Dynamic Standard for Small IES Connections

    21/02/2025 .pdf 654.5 KB

    STNW3511 Dynamic Standard for Low Voltage EG Connections

    27/02/2025 .pdf 2.1 MB

    STNW3522 Standard for Major Customer Connections (9148501)

    04/02/2025 .pdf 1.5 MB

    Large DER references

    Approved Grid Protection Relays

    20/11/2024 .pdf 197.9 KB

    Connecting to the Ergon Energy Network Fees and Charges 2025-26

    22/07/2025 .pdf 190.2 KB

    Customer Application Checklist and GPS Issues Register - EGs over 5MW

    03/06/2025 .xlsx 93.9 KB

    Customer R1 Checklist and Issues Register EGs over 5MW

    20/08/2025 .xlsx 92.3 KB

    Design Compliance Report Bumpless Class A1 (sample letter)

    20/05/2025 .pdf 221.5 KB

    Design Compliance Report Solar Class A1 (sample latter)

    20/05/2025 .pdf 226.6 KB

    Design Compliance Report Standby or Continuous Parallel Class A1 (sample letter)

    20/05/2025 .pdf 236.7 KB

    Embedded Generation Information Pack

    25/02/2025 .pdf 1.6 MB

    Electro Magnetic Transient (EMT) Modelling

    24/07/2024 .pdf 116.7 KB

    Fact Sheet HV Metering Unit Specification 11kV, 22kV & 33kV

    08/09/2023 .pdf 551.9 KB

    Modelling Information for Non Registered Generators

    03/06/2025 .pdf 493.0 KB

    Power Quality Reporting Guideline for EG 30kVA to 1500kVA

    03/07/2024 .pdf 655.3 KB

    Register of Completed Embedded Generation Projects

    12/08/2025 .pdf 1.8 MB

    RPEQ Compliance Reporting Form - EG via Bumpless Transfer Class A1

    23/11/2023 .pdf 231.9 KB

    RPEQ Compliance Reporting Form - EG via IES Class A1

    23/11/2023 .pdf 1005.6 KB

    RPEQ Compliance Reporting Form - EG via RM Class A1

    23/11/2023 .pdf 1014.1 KB

    Under 5MVA Application Checklist A2

    04/06/2025 .xlsx 135.0 KB

    Fact sheets and other information

    Application Checklist for Load Connections

    29/05/2025 .xlsx 107.9 KB

    FAQs for AS/NZS 4777.1:2024 Standard

    21/02/2025 .pdf 1.1 MB

    FAQs for STNW3522 Standard

    01/11/2022 .pdf 377.0 KB

    Information about dedicated connection assets to be transferred to Ergon

    08/09/2023 .pdf 255.9 KB

    Interlocking Requirements Guideline

    23/10/2024 .pdf 1.3 MB

    Management of Disputes

    01/12/2022 .pdf 347.2 KB

    Metering Installation Design

    30/10/2024 .pdf 768.0 KB

    Operating Protocol

    06/12/2022 .pdf 716.3 KB

    Security Requirements for Major Customer Connections

    14/10/2022 .pdf 279.1 KB

    Tenure Requirements

    20/10/2022 .pdf 493.7 KB

    Get in touch

    Do you have a specific question about Large Customer electricity connections? If so, please contact our Large Customer connections support team.