Solar power, from the roof to the plug.
Groenevolt designs, installs and maintains solar, inverter and battery systems, and does the electrical work around them. Turn the dial to see what a home system does through a day.
- Sun
- 0.0 kW
- Home
- 0.0 kW
- Battery
- 0%
- Grid
- 0.0 kW
Panels run the house and charge the battery.
Example system: 6.6 kW of panels, 5 kW hybrid inverter, 10 kWh lithium battery. Modelled figures for a sunny day, not measurements.
One company for the whole loop
The arrow in our logo goes all the way round, and so do we: the design, the install, the upkeep and the electrical work that ties it into your house. Pick a part of the loop.
Design
A site visit, a list of your loads and a written design before anything is ordered.
See how we work
Maintain
Cleaning, inspections and fault-finding, also on systems we did not install.
See maintenance
Systems for the way you use power
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Home solar
Most homes we quote want two things: the lights, Wi-Fi, fridge and TV kept on during power cuts, and a smaller electricity bill.
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Business solar
Offices, shops, workshops and warehouses use most of their power between eight and five, which is when panels produce.
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Farm solar
Farms have long cable runs, big motors and supply that drops out for days.
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Off-grid solar
An off-grid system has no grid to fall back on, so it has to be sized for the worst week of winter, not an average day.
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Inverter and battery backup
When the power drops, the inverter switches the house over to the battery fast enough that most lights and Wi-Fi routers do not notice.
When the street goes dark, your house does not have to
- 00:00.0
The grid drops. The hybrid inverter sees the voltage go.
- 00:00.02
It switches your essential circuits to the battery, fast enough that most lights and routers carry on.
- + hours
Lights, Wi-Fi, TV, fridge, gate and alarm run from the battery. The stove and geyser wait for the grid.
- sunrise
With panels, the sun recharges the battery. Without them, the grid does when it comes back.
Switch-over times differ between inverters; we give you the figure for the model we quote.
Inverter and battery backupRoughly what size system?
Pick the closest household for a ballpark. The full sizing tool lets you list every appliance and shows the arithmetic.
Estimate for 4 hours of backup, 550 W panels (6 at least) and average South African sun. A site visit confirms it.
How a job runs, start to sign-off
Six stages, the same on a two-panel backup kit and a warehouse roof.
Read how we work- 1
Tell us what you need
Send the quote form or call. A photo of your DB board and a recent electricity bill help us prepare.
- 2
Site visit
We check the roof, shading, DB board and where the inverter and battery can go, and list the loads you want covered.
- 3
Design and quote
A written quote with the system sizes, a roof layout, what is on backup and what is not, and the expected install days.
- 4
Installation
Mounting, panels, inverter, battery and protection, installed and labelled. We clean up as we go.
- 5
Testing and sign-off
Every circuit tested, battery limits set, Certificate of Compliance issued and SSEG paperwork prepared where required.
- 6
Aftercare
App set-up, a walk-through of the system, and reminders for cleaning and inspection when they are due.
Questions people ask us
Will solar keep my house running during load-shedding?
A hybrid system with a battery will run the circuits you choose to back up, such as lights, Wi-Fi, TV, the fridge, the gate and the alarm. The stove, geyser and pool pump usually stay off backup because they would drain the battery quickly.
What happens on cloudy days?
Panels still produce on cloudy days, just less. The battery and the grid make up the difference. Off-grid systems are sized with extra battery or a generator for long cloudy spells.
Do I need to register my system with the municipality?
Most municipalities require small-scale embedded generation (SSEG) registration for systems connected to the grid. We check your municipality’s rules and prepare the documents for systems we install.
Can I add panels or batteries later?
Yes, if the inverter has room. We note on every quote how far the system can grow.
Do you service systems another company installed?
Yes. Cleaning, inspections and repairs are available for any system.
Start with a site visit
Send the basics and we reply to arrange a site visit or a quote. A photo of your DB board and a recent electricity bill help us prepare, and you can attach them to the email this form opens.