PW4 Technician – Solar Installation

About the role

The PW4 Technician is responsible for electrical installation, testing, commissioning, troubleshooting, and maintenance works for solar photovoltaic (PV) systems. The role requires a valid Suruhanjaya Tenaga (ST) PW4 competency certificate and practical experience in solar PV installation, with strong emphasis on electrical safety, workmanship quality, and regulatory compliance.

Key responsibilities

• Carry out electrical installation works for solar PV systems, including AC and DC cabling, isolators, distribution boards, protection devices, earthing, and related electrical components.
• Perform installation and termination of solar PV panels, inverters, combiner boxes, switchboards, meters, and associated equipment.
• Conduct cable pulling, cable routing, termination, testing, labelling, and verification according to approved drawings and specifications.
• Perform electrical testing and commissioning, including insulation resistance, continuity, polarity, earthing, voltage, and other required tests.
• Assist in inverter configuration, system start-up, commissioning, and verification of solar PV system performance.
• Carry out troubleshooting and rectification of electrical faults involving solar PV systems and associated electrical installations.
• Perform preventive and corrective maintenance for solar PV installations.
• Read and interpret single-line diagrams (SLD), electrical drawings, layout drawings, schematics, and technical specifications.
• Ensure all electrical works comply with Suruhanjaya Tenaga requirements, Electricity Supply Act and Regulations, relevant Malaysian Standards, safety requirements, and project specifications.
• Conduct site inspections and identify electrical defects, installation issues, and safety risks.

About you

• Minimum SPM/SKM/Certificate in Electrical Engineering, Electrical Installation or equivalent.

• Must possess a valid PW4 competency certificate issued by Suruhanjaya Tenaga (ST).

• Minimum 2–3 years of hands-on electrical installation experience, preferably involving solar PV projects.

• Practical experience in rooftop and/or ground-mounted solar PV installation is highly preferred.

• Experience with solar inverters, AC/DC electrical systems, protection systems, earthing, DBs and associated PV equipment.

• Able to understand electrical drawings, SLDs and technical documentation.

• Familiar with electrical testing equipment such as multimeters, insulation resistance testers and earth testers.

• Knowledge of electrical and solar installation safety requirements.

• Possess good troubleshooting and problem-solving skills.