Solar Operations & Maintenance
Your solar system should produce what you paid for, every month, for the next 25 years.
RobCon Electrical looks after residential, commercial, industrial and agricultural solar PV systems across Gauteng and surrounding provinces. We monitor, clean, test and repair your system so small faults never become big losses.
What is solar O&M?
Ongoing care that keeps your system safe, compliant and at full output.
Panels, inverters and batteries are built to last, but they do not look after themselves. Dust and bird droppings cut output. Connections loosen with daily heating and cooling. Fuses blow, breakers trip and inverters throw errors that go unnoticed for weeks.
A good O&M plan catches these early, protects your warranties and keeps your savings on track. At RobCon, O&M builds on what we already do best: professional panel cleaning and full system maintenance, backed by 20+ years of construction and renewable energy experience as a registered electrical contractor.
Benefits of an O&M plan
More energy, every month
Clean panels and healthy connections keep output close to what your system was designed to produce.
A longer system life
Catching wear early protects inverters, batteries and cabling from damage that shortens their working life.
Less downtime, lower costs
Planned maintenance costs far less than emergency repairs and the electricity you pay for while the system is down.
Protected investment
A documented service history supports warranty claims and adds value if you sell the property or business.
The cost of skipping maintenance
Up to 30% lost output
Bird droppings and panels mounted too flat can cut output by up to 30%. Droppings stick to the glass and cause hot spots, and on low-slope roofs dirt never washes off with the rain.
Faster wear
Loose connections and overheating parts age quickly and can fail without warning.
Warranty risk
Many manufacturers expect proof of regular maintenance before they approve a claim.
"The cost of regular care is small next to the value of the system it protects."
What our O&M service covers
- 01
Remote performance monitoring
We link to your inverter's online platform and check production against expected yield. If output drops or the system goes offline, we often know before you do.
- 02
Professional panel cleaning
Soft brushes and a safe method remove dust, pollen, bird droppings and Highveld grime without scratching the glass or voiding panel warranties.
- 03
Scheduled preventive maintenance
Planned visits at an interval that suits your system and site. Panels, mounting, cabling, DB boards, inverters and batteries checked in one visit.
- 04
Electrical testing and safety checks
String voltage and current, insulation resistance, earthing and bonding, surge protection, and torque checks on terminals and isolators.
- 05
Thermal imaging inspections
Infrared scans reveal hot spots, failing cells, overheating connectors and weak diodes invisible to the naked eye.
- 06
Inverter and battery health checks
Firmware updates, error-log review, ventilation and fan checks, and battery state-of-health so your backup is there when the power goes.
- 07
Fault finding and repairs
Blown fuses, tripped breakers, damaged cables, faulty connectors, failed inverters or optimisers — we find the cause and fix it.
- 08
Mounting and roof checks
Rails, clamps and roof penetrations checked for loose fixings, corrosion and leaks, especially after storms and hail.
- 09
Compliance and certification
Electrical work by a registered electrical contractor, with support for Certificates of Compliance (CoC) where required.
- 10
Reporting you can understand
After every visit: what we checked, what we found, before-and-after photos and recommended next steps.
- 11
Emergency call-out
Priority response when your system fails outright, so you are not left without power or paying full grid rates for long.
Who we look after
- Homes with rooftop solar, inverters and backup batteries
- Businesses such as offices, retail, warehouses and factories
- Farms and agricultural sites with ground-mount or carport arrays
- Schools, churches, estates and complexes
- Installers and EPC partners who want to hand over after-sales maintenance to a trusted team
We also service existing systems
Inherited a system, or lost touch with your installer? We assess, repair and optimise solar and battery systems no matter who installed them. Every new client starts with a full system audit so we know exactly what we're working with.
Request a system auditService plans
Audit first. Then a plan priced for your system.
Visit frequency and pricing depend on system size, roof and site conditions, so every plan is quoted after your audit.
| Included | EssentialHomes | Most popularStandardLarger homes, small businesses | PremiumCommercial, industrial and agricultural |
|---|---|---|---|
| Site visits & panel cleaning | Set after audit | Set after audit | Set after audit |
| Visual inspection and safety checks | Yes | Yes | Yes |
| Electrical testing | Basic | Full | Full |
| Inverter and battery health check | Yes | Yes | Yes |
| Thermal imaging | — | Annual | Every visit |
| Remote monitoring | — | Monthly review | Ongoing, with alerts |
| Visit report with photos | Yes | Yes | Yes |
| Performance and savings report | — | Annual | Monthly |
| Annual optimisation review | — | — | Yes |
| Fault response | Standard | Faster | Priority call-out |
| Enquire now → | Enquire now → | Enquire now → |
Once-off services (no contract needed): Panel cleaning · Solar system audit · Thermal inspection · Fault call-out and repair · CoC inspection
How it works
- 1
Solar system audit
We visit, inspect and test your system, and review its history and warranties.
- 2
Your maintenance plan
We recommend a plan based on system size, roof type, location and how much you rely on it.
- 3
Regular care
We clean, inspect and test on schedule, and keep an eye on performance in between.
- 4
Report and recommend
A clear report after every visit, with any repairs or upgrades quoted upfront.
Why RobCon Electrical
- 20+ years of experience in construction, engineering and renewable energy
- Registered electrical contractor for safe, compliant electrical work
- One team for cleaning, solar electrical work and maintenance, so every part of your system gets proper care
- Based in Pretoria, serving Gauteng and surrounding provinces
- No surprises: clear reports, photos of every finding and repairs quoted before we start
What our clients say
Since our panels have been cleaned, our solar generation have been 32% higher. Great and trustworthy team — I should have done this much sooner! We forget how much dust our panels accumulate.
Zander Walters
Midstream residential owner
Contacted Andre Roberts — he promised to see that the solar problem we had was fixed within a week. It's now 4 days later, Andre visited me in person and my problem is fixed. Thanks to Andre for keeping his promise and providing me with great service!
Dawid Ludik
Solar client
They are professional, passionate and proud of their product. Big aim on client satisfaction and after sales service.
Michael Pieterson
Solar client
Great service from Andre and team and we are very happy.
Nico Nagel
Solar client
Our work
See the systems we look after
Real homes, businesses and farms across Gauteng.
Questions we get asked
Solar O&M FAQs
In most of Gauteng, two to four times a year. Sites near dirt roads, farms, mines or construction may need more frequent cleaning.
Yes. We start with a full system audit so we understand the system and its warranties before we take it on.
The opposite. Many manufacturers expect regular maintenance, and our reports give you a record to support any warranty claim.
Many faults reduce output quietly without switching the system off. A blown string fuse can cut production for months before anyone notices on the bill.
No. You can book once-off cleaning, a system audit or a fault call-out at any time. Plans simply make it easier and cheaper over the year.
We're based in Pretoria and cover all of Gauteng, including Johannesburg, Centurion and Midrand, as well as the surrounding provinces.
Protect your solar investment
Talk to our team about the right plan for your system, or book an audit and we'll tell you exactly where you stand.
Clients that trust us
