Guide to Connecting a Distributed Generator - Sustainability Victoria

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Appendix 3: Additional matters to coordinateRegulation of generating plant fuelled by gases or inflammable liquids 8Where applicable, applicants are obliged to comply with the following regulations, among related requirements, if theinstallation uses an engine, gas turbine, fuel cell or other equipment which is fuelled by natural gas, LPG, biogas, petrol,diesel fuel, distillate or other inflammable source:• Gas installation code (AG601)• Code for industrial and commercial gas-fired appliances (AG501) (www.blis.tas.gov.au)• EPA policy on noise emissions (www.epa.vic.gov.au)• EPA policy on atmospheric emissions (www.epa.vic.gov.au)• MFB and CFA requirements• Local municipal planning and building regulationsWhere electrical equipment (including generators) is located at, or close to, sources of inflammable gas or vapour, it is alsonecessary to follow the Hazardous Area Standards (see Standards Association of Australia HB13) in order to mitigate risksof explosion. It is common to provide protection ventilation (AS1482) and to exclude as many electrical accessories aspossible from the hazardous area.Metering arrangementsThe applicant is responsible for appointing a metering provider to install and maintain metering equipment at the locationagreed with their DNSP. The type of metering installation required and its accuracy requirements should be in accordance withthe National Electricity Rules (Chapter 7) unless otherwise agreed with the electricity retailer or metering provider. Proponentsshould ensure that they understand their responsibilities with regard to these functions.Minimum standards for new metering equipment 9 (for a non-market generator)• Metering equipment for medium DG operating as a non-market generator must comply with the minimumstandards for metering installations as prescribed in the Rules for market generators.• Metering equipment for small DG operating as non-market generators must comply with the minimum standardsof accuracy for new metering equipment for electrical installations with consumption of less than 100 GWh perannum, in accordance with the Victorian Electricity Customer Metering Code.• Metering equipment for medium DG non-market generators must be able to measure active energy andreactive energy.• A distributor may require the metering equipment for small DG or micro DG operating as non-market generatorsto measure active energy and reactive energy taking into account the size of the generator, its proposed role andits location in the network.• Metering equipment for non-market generators must be able to measure positive and negative flows separatelyand for the avoidance of doubt this metering requirement allows the customer load and the non-market generatorto be connected together on the customer’s side of the meter so that any exports are ‘net metered’.• Where avoided cost payments or tariffs for the purchase of electricity from the non-market generator are basedon different rates according to the time of day, interval metering equipment must be installed.It is in the best interests of the applicant to refer to the Electricity Customer Metering Code published by the ESC.8. Extract from the Customer Guidelines for embedded generation of rating up to 1MW, Powercor Australia.9. Extract from Draft National Code of Practice for Embedded Generation, DRET 2006.30 - Guide to Connecting a Distributed Generator in Victoria
Environmental considerationsConnection by the DNSP may be subject to EPA Victoria 10 and planning approvals for any necessary networkaugmentations or extension works. Early consultations, possibly during Step 3 or even earlier with the DNSPon these issues can help avoid delays at the connection stage. Potential issues include:• Footprint of distributed generation, especially wind and solar• Community expectations and objections• Construction of electrical grid infrastructure to integrate into existing grid• Overhead versus underground causing capital cost escalation• Heritage areas• Native flora and fauna• Noise impact• Aesthetic impact.Connection charges and provisionsConnection charge means a charge made by a DNSP for a connection service. In Victoria, the connection chargingprinciples are set according to the distributed or embedded generator unit size classification. The principle is that anycustomer pays for the costs it causes to be incurred (less any incremental revenue). Where there are multiple beneficiaries(such as plans to augment the network in future to accommodate load growth) the DG pays only a share, such as the costto bring forward planned works.A limit has been placed on charging for deep augmentation costs, with the limit set at the cost of works up toand including the first transformation in the distribution system.The Draft National Code of Practice for DG notes that: “The Distributor (DNSP) shall be entitled to levy a fair andreasonable charge on the DG for connection and integration to the distribution system”.Also:The Distributor must provide in the connection offer a disaggregation of the proposed charges. As a minimumthis disaggregation must, where applicable and where this information is available to the distributor, indicate thecontribution to total cost of the following items:• Dedicated connection assets• Extension assets• Augmentation (reinforcement) of the existing network (including any protection).• Metering and data collection costs• Any provision for operation, repair and maintenance of relevant network assets (including any allowancefor ongoing requirements).In the context, network augmentation costs are called the shallow connection costs as they impact on the distributionside of the network or the first transformation in the distribution system. The nature and cost of augmentation will varydepending on the site and this will be part of the negotiation that the applicant will need to undertake with their DNSP.The augmentations generally include voltage controls, switchboards, circuit breakers, relays and isolators.For more information on the connection charge principles and guidelines refer to Part E of the National Electricity (RetailConnection) Amendment Rules 2010 and the Draft National Code of Practice for Embedded Generation (MCE, Feb 2006).10. Under Victoria’s EPA, no emission license is required for generator capacity below 20MVA, but a Works Permit is required for generator capacity morethan 1MVA.Guide to Connecting a Distributed Generator in Victoria - 31
Page 2 and 3: AcknowledgementsSustainability Vict
Page 5 and 6: 1. IntroductionThis guide aims to h
Page 7: Figure 1: Victorian DNSP operationa
Page 11 and 12: Power FactorPower factor is a measu
Page 13 and 14: 4.5 Generator size or power outputT
Page 15 and 16: 4.7 Connection voltageThe generator
Page 17 and 18: 5.1 National Electricity Rules and
Page 19 and 20: Step 2: Connection studies and enqu
Page 21 and 22: CHECKLIST - Step 2: Connection enqu
Page 23 and 24: Step 4: Connection agreement and ge
Page 25 and 26: Applicant tasks and milestonesDNSP
Page 27 and 28: Appendix 1: GlossaryTechnical terms
Page 29: Appendix 2: Setting the contextThe
Page 33 and 34: Protective systemsProtective device
Page 35: Guide to Connecting a Distributed G

Guide to Connecting a Distributed Generator - Sustainability Victoria

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