Electrical Services
Domestic, Commercial and Industrial maintenance
Scheduled preventative maintenance keeps your solar plant and your electrical installation safe, compliant and producing what it was designed to produce. Our technicians work from the same checklists they have used for years, record every check, and hand you a written report after each visit.
- Service levels
- Minor and major O&M
- Every check
- Pass, Attention or N/A
- After each visit
- Written report with photos
- Visit frequency
- Agreed per site
Why maintenance matters
A solar PV system is engineered to perform for more than 25 years, but only if it is looked after. Loose clamps, a blown fuse, a failed surge arrester, a blocked inverter filter or a nest in a junction box will not always stop a system outright. More often they quietly reduce yield, shorten equipment life or create a fire and safety risk that nobody sees until something fails.
Preventative maintenance finds those problems early, while they are small and planned, rather than as a breakdown. The outcome is lower operational risk, more reliable production, and equipment that reaches the end of its design life.
How every visit is recorded
Each item on the checklist is marked Pass, Attention or N/A (not applicable to that site), with a comment and photographs where they help. Our technicians capture this on site, so the record is made while they are standing at the equipment.
The visit produces a written report for you: what was checked, what was found, and the photographs that show it. Any item marked Attention is followed up as remedial work, which we quote separately so you can approve it before it is done.
Every service: the minor checklist
A minor service is the routine visit. These are the checks it covers, grouped the way they appear on our technicians' checklist.
Modules
- Integrity inspection of the PV modules for burn marks, discolouration, delamination or broken glass, with any defect documented and reported.
- Mounting and racking check for rust, corrosion, sagging and missing or broken clips or bolts; loose clamps are tightened and broken parts repaired.
- Cleaning of the array and rack area: sprouting seeds, vegetation, bird and vermin nests, leaves and debris removed.
DBs and cabinets (junction boxes, generator boxes, PVDBs, weather station boxes, communication boxes and related cabinets)
- Integrity check of cabinets, switchboards and boxes for corrosion and moisture or insect intrusion, with boxes sealed where required.
- Visual inspection of electrical protection: disconnect switches and breakers in their correct positions, and any damage or visible defect reported.
- Fuse status check, with any broken or blown fuses reported for repair.
- Surge protection status check, confirming the surge protection devices are still in working condition.
- Lightning protection status check, where the site has lightning protection.
- Cable and terminal integrity: cracks, connections pulling out, overheating, arcing, and short or open circuits.
- Functional verification of sensors such as irradiation sensors, where fitted.
DC and AC cables
- Integrity check of DC and AC cabling for cracks, damage, overheating, arcing, and short or open circuits.
- Inspection of cable trays and their mounting structures for defects.
- Inspection of cable terminals for cracks, loose or pulled connections, overheating and arcing.
Inverters
- Integrity check of the inverter and its mounting, with dust and bird nests cleaned out.
- Visual inspection of the inverter's electrical protection.
- Fuse check on the inverter.
- Functional test of the ventilation system, confirming the fans run properly.
- Filter cleaning, according to the manufacturer's user manual.
- Inverter cage check for rust, broken locks or loose sheets, where a cage is fitted.
Energy meter
- Integrity check of the meter mounting, and cleaning of the meter.
- Meter values and parameters recorded.
- Check of the meter's Modbus communication device, which carries readings to the monitoring system.
Vegetation
- Vegetation cleared from around the equipment.
What a major service adds
A major service includes every check above and adds the deeper inspections and scheduled replacements below. Electrical protection on DBs, cabinets and inverters is also inspected in full rather than visually only.
Thermal inspection
- Infrared thermal scan of the modules to find hotspots, failed strings, failed modules or cells, and hot module junction boxes.
- Infrared thermal scan of DBs and cabinets for hotspots and failing equipment.
- Infrared thermal scan of DC and AC cabling and terminations.
- Infrared thermal scan of the inverters.
- Every defect found is documented and reported for replacement.
Inverters
- Fan replacement, scheduled to the manufacturer's specification and carried out during one of the visits.
- Filter replacement, scheduled to the manufacturer's specification and carried out during one of the visits.
Cables and labelling
- Cable management: cables underneath the panels neatened and secured with cable ties.
- Safety labels and equipment labels on cabling and inverters inspected, and replaced or renewed where needed.
Training
- A refresher on the system's shutdown procedures with the responsible contact person on site.
Minor and major at a glance
| Aspect | Minor service | Major service |
|---|---|---|
| Module inspection, clamps and cleaning | Included | Included |
| DBs, cabinets, fuses, surge and lightning protection | Included | Included |
| Electrical protection | Visual inspection | Full inspection |
| Infrared thermal inspection | Not included | Modules, DBs, cables and inverters |
| Inverter fans | Functional test | Functional test and scheduled replacement |
| Inverter filters | Cleaned | Cleaned and scheduled replacement |
| Cable management | Not included | Included |
| Label inspection and renewal | Not included | Included |
| Energy meter and Modbus communication | Included | Included |
| Vegetation clearing | Included | Included |
| Shutdown-procedure refresher | Not included | Included |
| Written report with photos | Included | Included |
Electrical preventative maintenance beyond solar
The same discipline applies to the rest of your electrical installation, on commercial, industrial and residential sites.
Switchboards and DBs
Inspection of distribution boards and switchboards for heat damage, loose terminations, damaged covers and correct labelling, with protection devices checked and earth leakage units trip tested.
Standby generators
Scheduled checks of the generator and its changeover, so it starts and takes the load when the supply fails rather than when it is tested for the first time in an outage.
UPS
Checks on uninterrupted power supply units and their batteries, so critical loads such as servers, tills and control systems ride through an interruption.
Exit and emergency lighting
Function tests of emergency luminaires and exit signs, confirming they light up on loss of supply and stay lit for their rated duration.
Lightning, surge and earthing
Inspection of lightning protection, surge and overvoltage protection and the earthing system, which together carry fault and surge currents safely to ground.
24/7 emergency breakdown
An emergency breakdown service for when something fails outside a scheduled visit: on-site diagnosis, a safe repair, and the premises left as we found them.
Property management maintenance
Electrical maintenance and new installations for managed residential and commercial property, with one team that knows the buildings.
Scheduled to meet statutory requirements, tailored per site
The Occupational Health and Safety Act places a duty on employers and users to keep their electrical installations and machinery safe, and the Electrical Installation Regulations, 2009 require a valid Certificate of Compliance for the installation. A documented maintenance programme is how you show that duty is being met.
There is no single correct visit frequency. We agree it with you per site, based on the equipment installed, the environment it works in (dust, coastal air, agricultural activity, birds) and the manufacturers' maintenance requirements. Programmes are tailored to the site and kept cost-efficient: you pay for the attention your installation needs, not a generic schedule.
Questions about maintenance
What happens when an item is marked Attention?
It is described and photographed in your report, and the remedial work is quoted separately. Work only goes ahead once you approve it.
How often should a solar system be serviced?
It depends on the equipment, the site and the manufacturers' requirements. Dusty, coastal or agricultural sites usually need more attention than a clean urban roof. We agree the frequency with you per site rather than applying a fixed schedule.
Why does a major service include thermal imaging?
An infrared camera shows heat that the eye cannot see. A hotspot on a module, a hot cable termination or a warm breaker often points to a fault before it causes a failure or a fire, so it can be dealt with while it is still a planned repair.
Put your installation on a maintenance programme
Tell us about your site and the equipment on it. We will propose a programme and visit frequency that fit your installation, and quote it for you.
Power On!