Overview:

We are seeking a skilled Operations & Maintenance (O&M) Technician to support the performance and reliability of solar photovoltaic (PV) systems. This role involves hands-on fault diagnosis and repairs, ongoing site inspections, inverter and communications troubleshooting, and the upkeep of overall system performance. The successful candidate will have a strong background in electrical systems, solar technology, and communication infrastructure within renewable energy environments.


Key Responsibilities:

String-Level Work:

  • Diagnose and repair faults within PV module strings on site.

  • Proficient use of string testers to identify issues, interpret results, and communicate findings effectively to supervisory staff.

  • Navigate monitoring portals to locate underperforming strings and perform physical repairs including fault tracing and panel replacement.

  • Replace string home runs when necessary and handle DC cable terminations using MC4 connectors.

Communications and Monitoring:

  • Conduct detailed diagnostics on communications hardware to determine fault causes and component health.

  • Understand the interplay between communications devices such as routers, data loggers, and monitoring systems.

  • Verify 3G SIM card functionality and remotely monitor inverters using online platforms.

  • Interpret inverter alarm data and yield deviations, taking into account environmental and array design variables.

  • Identify and diagnose inverter faults using error codes and system analytics.

Inverter Maintenance:

  • Work safely with various inverter brands (e.g., SMA, Huawei), performing tasks like firmware updates via multiple connectivity methods (Wi-Fi, Ethernet, RS485).

  • Download and interpret event logs from inverter interfaces.

  • Troubleshoot alerts from inverter managers and monitoring platforms (e.g., Weblog, Bluelog).

  • Log faults with manufacturers' support and follow up until resolution.

  • Perform on-site physical inverter replacements and manage case escalation with support teams.

General O&M Tasks:

  • Conduct visual inspections twice per year per site (including one detailed mechanical inspection).

  • Replace damaged panels, breakers, and AC cables as needed.

  • Safely work within electrical distribution boards and troubleshoot electrical faults sitewide.

  • Take responsibility for the O&M vehicle, including fueling and maintenance scheduling.

  • Troubleshoot breaker mechanisms and understand control systems involving grid monitoring relays for automated load control during outages.


Candidate Profile:

Essential Skills & Attributes:

  • Registered or in-training electrician with relevant solar PV experience.

  • Deep understanding of communications equipment used in PV systems (e.g., routers, switches, inverter managers).

  • Experience using tools like multimeters and solar string testers.

  • Comfortable using and troubleshooting various inverter software platforms.

  • Valid Working at Heights certificate (or willingness to obtain one).

  • Proficient in Microsoft Office and general computer systems; strong digital literacy is a must.

  • High attention to detail, self-motivation, and a proactive approach to problem-solving and efficiency improvements.

Soft Skills:

  • Strong problem-solving and analytical abilities.

  • Effective verbal and written communication.

  • Comfortable working in dynamic and fast-paced environments.

  • Technically adaptable with a proactive mindset.

  • Strong critical thinking and initiative.

Experience and Qualifications:

  • Qualified Electrician with a Wireman's License and 2-3 years of hands-on experience in PV systems.

  • National Diploma in Engineering is advantageous.

R50,000 - R55,000
Per month
Negotiable

Johannesburg

Permanent

Added 25/04/2025

O&M Technician

Johannesburg
Permanent
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