Power interruptions
Essential circuits selected to keep lighting, refrigeration, connectivity and security running.
Powering your world, safely and efficiently.Request a Quote
Solar and backup power
Solar Installations in Cape Town
GJS designs and installs solar, inverter and battery systems for Cape Town homes and businesses. Equipment is selected around the property load, essential circuits and the way power is used during the day.
Service overview
Start with the load, not the equipment list
A useful solar system needs to match the property. The monthly bill gives an indication of energy use, but circuit loads, roof space, shading, supply type and backup priorities still need to be checked on site.
GJS plans the inverter, battery, panels and DB changes as one installation. This helps avoid oversized promises, overloaded backup circuits and equipment that cannot be expanded cleanly later.
Practical support
Solar and backup needs we plan for
Rising electricity costs
Solar production planned around daytime demand and realistic opportunities to offset grid use.
Poorly sized systems
Inverter, battery and panel capacity checked against the loads they are expected to support.
DB integration
Essential circuits, changeover equipment and protection coordinated with the existing board.
Future expansion
Equipment and layout considered against likely later battery, panel or load additions.
Commercial daytime use
Solar generation assessed against operating hours and the building's daytime load profile.
Why GJS Electrical
Electrical work and solar design together
Load assessment
The recommendation starts with what must run and when the property uses electricity.
DB experience
The solar system is integrated with the distribution and protection already on site.
Residential and commercial work
GJS has installed systems for homes, community facilities and commercial properties.
Commissioned before handover
Operating modes, protection and backed-up circuits are checked with the client.
Registered electrical contractorResidential and commercial experienceTested before handover
Questions clients ask
Solar & Backup Systems FAQs
How do I know what size solar system I need?
System size depends on the monthly usage, daytime demand, essential loads, supply type, roof space and the level of backup required. A site assessment confirms the final design.
Can solar reduce my electricity bill?
It can reduce grid use when the property consumes solar power as it is generated. The result depends on system size, daytime use, tariffs and operating settings.
Can an inverter run a geyser or air conditioner?
Possibly, but these are significant loads. Their power demand, startup current and operating schedule must be considered before equipment is selected.
Do you install solar for businesses?
Yes. GJS assesses commercial solar and backup systems around operating hours, daytime loads, distribution, roof space and site requirements.
Does the solar installation need compliance documents?
Solar and backup work requires the appropriate electrical testing and documentation. Municipal or engineering requirements can also apply depending on the system and property.
Get GJS on the job
Tell us what the property needs.
Send the site details, photos or drawings and speak directly to the GJS team.