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Session 1

Grid Connect

Session 1

  • What is grid-connect?

  • Is there money to made?

  • Why do this skill-set?

  • Risk management?

J.P. Teasel version 27/11/2011


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J.P. Teasel version 27/11/2011


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What is grid connect?

Source http://www.google.com.au/imgres?imgurl

J.P. Teasel version 27/11/2011


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What part of the Grid connected PV System is considered to be prescribed electrical installation work?

Those parts of the generation system operating at or above 120 Volt dc, cables installed between panels and between the array and inverter and the ac cables installed between the inverter and the switchboard to which the generation system is connected along with all the required isolation and protection devices, are prescribed electrical installation work.

For the purpose of section 45 of the Electricity Safety Act 1998, prescribed electrical Installation work means work on all or any part of the following electrical installations if they ordinarily operate at low voltage or a voltage exceeding low voltage.

(f) Wiring systems, switchgear, control gear and accessories installed to provide control and protection of generation systems (excluding stand alone power systems with a power rating that is less than 500 volt-amperes)

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The following activities are considered to be prescribed electrical installation work;

Adding panels to an existing solar grid connected PV where the open circuit voltage (Voc Array) exceeds Extra Low Voltage.

Upgrading the inverter due to increase in generation capacity

The replacement of one component part of prescribed electrical installation work ‘like for like‗ such as an inverter or isolator can be entered on a non-prescribed certificate without the mandatory inspection.

Reference – Electricity Safety (Installations) Regulations 2009 – Regulation 238(3)

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IMPORTANT: The NSW Government announced on May 13, 2011 that the NSW Solar Bonus Scheme is closed to new applications retrospectively from midnight 28 April 2011 and also plans to cut the feed in tariff rate for those who signed up to the Scheme under the original 60c rate. There will be no change for people participating in the program under the subsequent 20c per kilowatt hour arrangement

http://www.energymatters.com.au/government-rebates/solar-bonus-scheme.php

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How does the NSW Solar Bonus Scheme work?

Under the Solar Bonus Scheme, all households and eligible small business and community groups installing solar power systems will be paid 20 cents per kilowatt hour for all electricity produced! In most other states, a premium is only paid on surplus electricity generated.

The NSW Solar Bonus scheme will allow for a system size of up to 10kW - far larger than most households need to supply all their electricity needs

http://www.energymatters.com.au/government-rebates/solar-bonus-scheme.php

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Can an electrician still make a business out of grid connect?

The following slides may offer some incite

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Data Source: PV-GC spreadsheet based on the CEC GC Design Guidelines

The rated output is that achieved in perfect laboratory conditions. The CEC design summary software takes these deratings into account when predicting average for any given system.

A typical Australian house consumes around 18 kilowatt hours (kWh) per day so a 1-2kW system displaces an average of 25-40% of your average electricity bill. Solar panels produce more energy in summer than they do in winter.

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What government schemes are in place to lower the cost of purchasing a solar PV system?

There are currently four types of financial assistance offered for solar PV systems in Australia:

• Small-scale Technology Certificates (STCs)

• Solar Credits

• Rebates (applications for rebates must have been received by June 2009)

• Feed-in tariffs

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STC prices Small-scale Technology Certificates (STCs)

The financial benefit supplied to you by an agent, or the total price given to you by a certificate broker/trader, can vary from day to day. This is because STCs are traded in the STC market (like the stock market) and so prices vary depending on supply and demand.

The only time the STC price is fixed is if it is to be traded through the ORER-managed STC Clearing House. Prices of STCs are fixed at $40 (excluding GST), regardless of what the STC market is doing.

In the past decade, when the certificates were traded via a market, the spot price of a certificate has varied between AUD$15 and AUD$60. This information is based on data provided to ORER by certificate brokers. Brokers monitor the price of certificates and their information can be found on the web.

http://www.orer.gov.au/sgu/solarcredits.html

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Consumer guide to buying household

solar panels (photovoltaic panels)

Solar Credits

The Solar Credits scheme6 for solar PV systems is based on the REC scheme, but multiplies by five the number of STCs able to be created for your solar PV system. These extra credits only apply to the first 1.5kW of system capacity. So if your system is larger than 1.5kW, you will receive Solar Credits plus an additional STC for every one megawatt hour of electricity able to be generated by your solar PV system.

The table below shows the level of financial support available from Solar Credits on solar PV systems in the major capital cities of Australia:

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The current SRES Legislation multiplier is as follows.

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http://www.orer.gov.au/sgu/solarcredits.html

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Feed-in tariffs Several states have introduced, or are in the process of introducing, feed-in tariffs. A feed-in tariff pays you for electricity generated by your solar PV system.

Under a net feed-in tariff, a premium is paid for any solar energy that goes back into the grid from your house. So if you have surplus energy generated by your solar panels, you get paid for it; and if you use all of the energy you generate it will be offset against your normal electricity bill.

Under a gross feed-in tariff you get paid for every unit of electricity generated by your solar panels, regardless of whether it goes into the grid or is used by your household.

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Do you need accreditation with the CEC?

SOURCE

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Solar PV accreditation is a qualification that demonstrates competence in design and/or installation of solar power systems. To be eligible to give your solar customer government incentives such as RECs, solar credits and feed-in tariffs the installer must be accredited by the Clean Energy Council

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Source :http://www.google.com.au/imgres


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Do want a 1.5kW system?/or do you want your system to produce 1.5kW?

An accredited designer/installer will provide the customer a solar PV system design and specification. This will include things such as:

• establishing your electrical loads over an average day using a load analysis

• determining the type of panels

• determining the size of your solar PV system

• deciding the type of inverter

• establishing the location of solar panels in relation to angles, available sunlight, shading and temperature.

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Safety Inspections Following the installation of your solar PV system, safety inspections may be carried out by your relevant electrical authority.

The Clean Energy Council, the Department of Climate Change and Energy Efficiency and the Office of the Renewable Energy Regulator also conduct its own inspection program.

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Small claims courts and tribunals If you have been unable to resolve your dispute to your satisfaction with assistance from either the Clean Energy Council or the Office of Fair Trading,

NSW Consumer, Trader & Tenancy Tribunal (CTTT) 1300 135 399

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Industry Ombudsman If you have a complaint about your electricity retailer or electricity distributor, you can contact the Energy Ombudsman in your state or territory. For example, the Energy Ombudsman may be able to help if your complaint is about:

• The provision and supply of electricity

• Failure to provide or supply electricity services

• Quality of electricity supply

• Billing

• Credit and payment services

• Electricity disconnections

• Connection or transfer issues

• Actions of a supplier which affect your property

• Metering not working

• Billing unfair

NSW Energy and Water Ombudsman NSW 1800 24 65 45

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1. Clean Energy Council - solaraccreditation.com.au/acccec/approvedproducts

2. Office of the Renewable Energy Regulator - www.orer.gov.au

3 aus grid

4. Department of Climate Change and Energy Efficiency www.climatechange.gov.au/government/initiatives/renewable-target/need-ret/solar-credits-faq.aspx

5. Office of Fair Traing

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The Training Program in Design, Install, Grid Connect Renewable Energy Technologies provides training to electricians to gain Clean Energy Council Accreditation (CEC) in designing and installing grid connect renewable energy systems.

UNITS OF COMPETENCY DELIVERED

CODE TITLE

UEENEEK025C Solve basic problems in photovoltaic energy apparatus

UEENEEK035C Design grid connected power supply systems

UEENEEK048A Install, configure and commission grid connected photovoltaic power systems

ENTRY REQUIREMENTS:

Applicants must have a current A grade Electrical License; proof must be provided on enrolment

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STANDARDS for INSTALLATION

The following standards SHALL be complied with where applicable …

AS/NZS 3000 Wiring Rules AS 4777.1 Grid connect - Installation

AS/NZS5033 Installation of Photovoltaic (PV) Arrays AS 1768 Lightning Protection

AS 4509 Stand-alone Power Systems AS/NZS 3008 Selection of cables

AS 1170.2 part 2: Wind Loads AS2050 Installation of roof tiles

AS/NZS 1562.1 Design and installation of sheet roof and wall cladding.

The grid-interactive inverter shall be tested in accordance with the AS 4777 parts 2 and 3 and listed on the

Clean Energy Council’s approved inverter list. The system shall comply with the relevant electrical service and

installation rules for the State where the system is installed.

Note that the local electricity distributor may have additional requirements.

These guidelines set additional requirements to the Standards. An accredited installer or supervisor is

expected to follow these guidelines in addition to the requirements within the relevant standards.

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LOW VOLTAGE (LV)

All low voltage work : >120V d.c.; >50V a.c.,

must be performed by a licensed electrician.

A licensed electrician is required to be responsible for

the safety of the system wiring prior to connection of the

system to the grid.

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Occupational Health and Safety Regulation 2001

[2001-648]

Status Information

Currency of versionCurrent version for 7 June 2011 to date (accessed 27 November 2011 at 08:57). Legislation on this site is usually updated within 3 working days after a change to the legislation.

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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5Meaning of “control” of risks

(1) For the purposes of this Regulation, an obligation to control a risk to health or safety (in any case in which the elimination of the risk is not reasonably practicable) is an obligation to take the following measures (in the order specified) to minimise the risk to the lowest level reasonably practicable:(a) firstly, substituting the hazard giving rise to the risk with a hazard that gives rise to a lesser risk,(b) secondly, isolating the hazard from the person put at risk,(c) thirdly, minimising the risk by engineering means,(d) fourthly, minimising the risk by administrative means (for example, by adopting safe working practices or providing appropriate training, instruction or information),(e) fifthly, using personal protective equipment.(2)).

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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Chapter 2 Places of work—risk management and other matters

Note. This Chapter imposes obligations on an employer to identify foreseeable hazards that may arise from the conduct of the employer’s undertaking, to assess the risks of those hazards and to eliminate the risks or, if not reasonably practicable to do so, to control the risks.

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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10Employer to assess risks

(1) An employer must assess the risk of harm to the health or safety of the following persons arising from any hazard identified in accordance with this Chapter:(a) any employee of the employer, or(b) any other person legally at the employer’s place of work, or both

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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11Employer to eliminate or control risks

(1) Subject to subclause (2), an employer must eliminate any reasonably foreseeable risk to the health or safety of:(a) any employee of the employer, or(b) any other person legally at the employer’s place of work, or both, that arises from the conduct of the employer’s undertaking.

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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12Employer to review risk assessments and control measures

An employer must review a risk assessment, and any measures adopted to control the risk, whenever:(a) there is evidence that the risk assessment is no longer valid, or(b) injury or illness results from exposure to a hazard to which the risk assessment relates, or(c) a significant change is proposed in the place of work or in work practices or procedures to which the risk assessment relates.

Maximum penalty: Level 4.

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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15Provision by an employer of personal protective equipment

  • If measures taken by an employer under clause 11 (2) to control a risk include the use of personal protective equipment, the employer must provide each person at risk with personal protective equipment and ensure that:

  • the equipment provided is appropriate for the person and controls the risk for that person, and

  • (b) the person is informed of any limitations of the equipment, and

  • (c) the person is provided with the instruction and training necessary to ensure that the equipment controls the risk for the person, and

  • (d) the equipment is properly maintained and is repaired or replaced as frequently as is necessary to control the risk for the person, and

  • (e) the equipment is provided in a clean and hygienic condition to the person, and

  • (f) the equipment is stored in a place provided by the employer for the purpose, and

  • (g) areas in places of work where personal protective equipment must be used are clearly identified

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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Division 2Fall prevention

39Fall prevention—particular risk control measures

A controller of premises must ensure that:(a) safe access is provided to all parts of a place of work to which a person may require access and from which the person may fall, and(b) if the whole or any part of the roof of a building or structure comprises or includes any brittle or fragile roofing material, warning signs are provided that:(i) contain the words “DANGER—BRITTLE ROOF”,and

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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Division 3Electricity

40Application

In the event of an inconsistency between the requirements of this Division and the Electricity (Consumer Safety) Regulation 2006, the requirements of that Regulation prevail.Note. The Electricity (Consumer Safety) Regulation 2006 requires all electrical installation work (within the meaning of the Electricity (Consumer Safety) Act 2004) to be carried out in accordance with AS/NZS 3000:2000 Electrical installations (known as the Australian/New Zealand Wiring Rules).

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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41Electricity—particular risk control measures

(1) A controller of premises must ensure that:(a) any electrical installation at the premises:(i) is safe at the time it is made available for use by an employer, or(ii) if not safe, is disconnected from the electricity supply and secured and the employer is informed that it is not safe, and(b) electrical installations containing live electrical components (such as control panels, switchrooms, switchyards and substations) are suitably secured to prevent inadvertent access, and

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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Division 8Electricity

63Application

In the event of an inconsistency between the requirements of this Division and the regulations under the Electricity (Consumer Safety) Act 2004, the requirements of those regulations prevail.

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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  • 64Electricity—particular risk control measures

  • (1) An employer must ensure that any risk of injury from electricity at a place of work is eliminated or, if elimination is not reasonably practicable, the risk is controlled.(2) An employer must ensure that:(a) Electrical installations at places of workall electrical installations at a place of work are inspected and tested, after they are installed and prior to their energising for normal use, by a competent person to ensure they are safe for use, and……….

source

http://www.legislation.nsw.gov.au/fullhtml/inforce/subordleg+648+2001+cd+0+N#ch.2-sec.10

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http://www.google.com.au/#sclient=psy-ab&hl=en&source=hp&q=list+cec+rto+grid+connect&pbx=1&oq=list+cec+rto+grid+connect&aq=f&aqi=&aql=1&gs_sm=e&gs_upl=2631l18259l0l18792l25l25l0l0l0l0l398l6715l2-15.9l25l0&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=9b3f8c5475d07fa8&biw=1280&bih=892

J.P. Teasel version 27/11/2011


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