ALL INVERTER ENERGY SYSTEM INSTALLATIONS INCLUDING BATTERY AND PHOTOVOLTAIC SYSTEMS

Transcription

1 ALL INVERTER ENERGY SYSTEM INSTALLATIONS INCLUDING BATTERY AND PHOTOVOLTAIC SYSTEMS The rating of a system is the total, of the storage and the PV system as described below; Solar system rating of the panels, Storage dc coupled the maximum of; the PV panel rating or the common inverter nominal rating For all limited export and storage systems including alterations to an existing system, the Pre-Approval form and the Connection Agreement should include the following: Single Line Diagram Confirmation that the system is either an ac or dc coupled system Confirmation that the system complies with Export Limits for Embedded Generators SOP 33-06, documenting relevant clause number on Pre-Approval application form FEES The following fees recover the minimum cost in reviewing the system proposal, other fees and charges might be incurred depending upon the complexity of the proposal and the impact to the existing electricity network assets at the proposed location. Other Regulated charges associated with metering alterations or testing are not included in these fees.

2 Maximum Net Capacity of Embedded Generating Unit Systems less than 4.6kVA (excluding SWER, Limited Export and Storage Systems) Pre-approval of PV connected to a SWER line, Limited Export or Battery Storage System- up to 4.6kVA Pre-approval of PV and small generator installations, including Limited Export, Battery Storage or Systems connected to a SWER line (4.6kVA to 15kVA) Pre-approval of PV and small generator installations, including Limited Export, Battery Storage or Systems connected to a SWER line (15kVA to 30kVA Fee (not including GST) Nil $ $ $ Project fee* for systems 30kVA - 200kVA $2,000 MINIMUM TECHNICAL REQUIREMENTS A Pre- Approval application for technical review is required for all Limited Export and Storage Systems or where the total rating of the Inverter Energy System (IES) exceeds 4.6 kva. This review is required to assess the impact of the installation on AusNet Services network and takes into consideration many factors including the transformer rating, and the size of IES. If any adverse impacts to the network are identified, the capacity of the system proposed might need to be reduced, connection may be refused, or a financial contribution may be required to upgrade the electricity network. Inverter Energy Systems less than 4.6 kva which do not meet the minimum requirements will not be accepted, and when identified will be required to disconnect until modified to comply. In order to assist installers the table below has been completed to outline AusNet Services minimum requirements for Inverter Energy Systems up to 7.0kVA (SWER System), up to 9.2kVA (on a Single Phase) and15kva (on a Three Phase System)

3 Please note that meeting the requirements below does not guarantee approval as there are other factors that must be considered when assessing an application. This table simply outlines the minimum requirements which must be met in the first instance before the IES will even be considered for approval; 1. SYSTEMS CONNECTED BACK TO A SWER TRANSFORMER (APPENDIX 1) Systems less than (or equal to) 3.5kVA System greater than 3.5kVA (up to 7.0kVA) Can permit up to 3.5kVA before second phase must be utilised. Required to split the PV system evenly across TWO PHASES (maximum 3.5kVA per phase). 2. SYSTEMS CONNECTED BACK TO A SINGLE PHASE TRANSFORMER (APPENDIX 2) Systems less than (or equal to) 4.6kVA System greater than 4.6kVA (up to 9.2kVA) Can permit up to 4.6kVA before second phase must be utilised. Required to split the PV system evenly across TWO PHASES (maximum 4.6kVA per phase). 3. SYSTEMS CONNECTED BACK TO A THREE PHASE TRANSFORMER (APPENDIX 3) Systems less than (or equal to) 5kVA Systems greater than 5kVA (up to 10kVA) Systems greater than 10kVA(up to 15kVA) Can permit up to 5kVA before second phase must be utilised. Required to split the PV system evenly across MINIMUM TWO PHASES (maximum 5kVA per phase) Required to split the PV system evenly across THREE PHASES (maximum 5kVA per phase) NOTES: 1 The above table is not applicable to larger systems. 2 All assessments and values used above are based on system, photovoltaic panel or prime energy source ratings. 3 Multiple phases may not be available at all installations and may require a supply upgrade request to be submitted to upgrade the electricity network. 4 Systems greater than 15kVA are more likely to require a system upgrade and hence a financial contribution by the Applicant. For enquiries relating to this advice, please us at solar.connections@ausnetservices.com.au or telephone us on

4 Modified pre-approval forms to reflect these requirements are available at the AusNet Services website and should be submitted either by to or by mail to Locked Bag 14051, Melbourne City Mail Centre, Victoria 8001 Australia. Ver 23/02/17

5 APPENDIX 1 TYPICAL SWER TRANSFORMER

6 APPENDIX 2 TYPICAL SINGLE PHASE TRANSFORMER

7 APPENDIX 3 TYPICAL THREE PHASE TRANSFORMER Ver 23/02/17

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