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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Plan to install PV power system
   • Nature and location of the PV work is determined from documentation, diagrams or relevant person/s to determine the scope of work to be undertaken
2. WHS/OHS requirements and workplace procedures for a given work area are obtained and applied
3. Hazards are identified, risks assessed, control measures and workplace procedures implemented
4. Installation and/or alteration of the PV system is planned in consultation with persons effected by the work and sequenced appropriately
5. PV array mounting methods and roof orientation is determined in accordance with relevant industry standards
6. Location of PV system components is planned within the constraints of the building structure, significants and regulations
7. Material for the PV installation work is obtained in accordance with workplace procedures and checked against relevant diagrams and job requirements prior to installation
8. Need to test or measure live electrical work is determined in accordance with workplace safety procedures
9. Tools, equipment and measuring devices required for the PV installation work are obtained in accordance with workplace procedures and checked for correct operation and safety
10. Install LV PV power system
    • Electrical WHS/OHS risk control measures and workplace procedures associated with extra-low voltage (ELV) and LV PV power system are followed
11. Circuits/machines/plant are checked as isolated in accordance with WHS/OHS requirements and workplace procedures
12. PV system components are installed to comply with industry technical standards, job specifications and system requirements and with sufficient access to affect terminations, adjustment and maintenance
13. Wiring is terminated at components and associated equipment in accordance with manufacturer specifications and functional and regulatory requirements
14. Unplanned situations are dealt with safely in accordance with workplace procedures in a manner that minimises risk to personnel and equipment and with the approval of an authorised person
15. PV system installation is carried out efficiently without waste of materials or damage to apparatus, circuits, the surrounding environment or services using sustainable energy principles
16. Checks of installed apparatus quality and components are undertaken in accordance with workplace procedures
17. Complete and report PV installation activities
    • Worksite is cleaned and made safe in accordance with workplace procedures
18. Final inspections and tests are made to the installed apparatus to ensure installation conforms to job requirements, industry technical standards and manufacturer specifications

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment. Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.
Install, configuring and commissioning LV grid-connected PV power systems must include:	installing PV power systems in at least two different types of premises, construction or environment

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least two occasions and include:

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including: checking tools, materials, equipment and testing devices for correct operation and safety ensuring circuits are isolated terminating wiring correctly and safety testing or measuring low voltage (LV) photovoltaic (PV) power and operating systems safely using risk control measures dealing with unplanned events/situations in accordance with workplace procedures in a manner that minimises risk to personnel and equipment installing and setting up grid-connected PV system, including: applying appropriate array mounting methods for roof sections connecting grid inverter and measuring inverter parameters for various loads placing and securing system components, including PV array reading and interpreting drawings/diagrams related to apparatus locations and circuit connections tilting and adjusting angle of roof mounted and free-standing PV array frame construction connecting and commissioning at least one PV product in accordance with industry standards and regulations.

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Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

PV array installation requirements, including: WHS/OHS requirements and methods for working on roofs common methods of roof construction (rafters and tile battens) and methods to ensure integrity of waterproofing common types of roof mounted and free-standing PV array frame construction and methods of tilt angle adjustment fixing methods for different roof types array mounting methods for north orientation roof sections and non-north facing roof sections aesthetic considerations in choosing an appropriate array location and type of mounting the mounting and fixing methods for at least one type of commercially available building integrated PV product

electrical PV array installation requirements, including: methods used in wiring and connecting PV arrays in accordance with relevant industry standards considerations involved in wiring of series connected PV modules to minimise power losses due to shading PV array wiring diagram including the placement of blocking and bypass diodes considerations involved in choosing the location of associated system equipment, including regulators, direct current (d.c.) control board, inverters and inverters for grid-connected systems cable route from PV array/s to inverters to minimise the route length

system installation and maintenance including: installation work on a PV power system in accordance with relevant industry standards and WHS/OHS guidelines correct isolation and shutdown procedures prior to carrying out maintenance tasks routine maintenance tasks on PV arrays required vegetation control to remove or reduce shading or soiling on a PV array

inverters, including: types of inverters used in grid-connected systems industry standard symbol for a LV inverter the basic function of an inverter simple block diagram of a typical inverter used in grid-connected system

inverter operation, including: the basic principle of operation of a single phase inverter (using switch analogue) the operation of a field effect transistor (FET) inverter, an inverter bridge and half-bridge configuration connection of a grid inverter and measurement of the inverter parameters for various loads

inverter characteristics, including: the characteristics which distinguish inverters suitable for grid-connected PV array application from standard inverters using waveform diagrams, the function of pulse width modulator (PWM) techniques in square wave, modified square wave and synthesised sine wave inverters output voltage waveforms for square wave, modified square wave and synthesised sine wave inverters showing typical voltages and periodic times the six (6) essential inverter specifications

PV grid-connected system operation, including: block diagram of a PV grid-connected system operation of grid interactive PV systems, including synchronisation, safety feature, power flow control, passive and active anti-islanding, and metered energy for systems schematic diagrams of common grid-connected inverter circuit configurations, including metering arrangements, isolation and connection with respect to residual current devices (RCDs) in accordance with relevant industry standards

installation of grid-connected inverters, including: major installation requirements for all system components which will ensure correct operation, long life, safety and ease of maintenance consistent with relevant industry standards and WHS/OHS guidelines selection of a suitable location for the PV array, inverter and other components, at a given installation site in accordance with relevant industry standards typical installation configurations for grid connection of energy systems via inverters the function and operation of a grid protection device as specified by relevant industry standards array wiring plan for series connected modules to minimise power loss due to shading at a particular site installation requirements for a grid-connected system labelling and signage requirements for switchboards supplied with power from grid connected inverters, as set out in the relevant industry standards the additional requirements for UPS systems as specified in the relevant industry standards installation of a PV grid-connected system

system commissioning and maintenance, including: the isolation procedures required for grid-connected inverters relevant commissioning procedures, including start-up and shutdown procedures for grid-connected inverter systems in accordance with relevant industry standards testing a grid-connected inverter system for correct operation location and rectification of an electrical fault within a PV array/inverter and wiring maintenance schedule for a grid-connected PV power system performing commissioning work on a PV power system in accordance with relevant industry standards.

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