Backup Power Systems Installation in Sandton
Keep your practice, office or apartment running when the Sandton grid drops.
Inverter and battery systems for Sandton offices, professional practices and apartment owners in managed buildings, coordinated with the building's access and approval process.
What matters for a Sandton property
In a managed Sandton building, the first conversation is usually with building management or the body corporate. Access permissions, security procedures and the hours during which contractors may work all shape what can be done and when, and they vary from one building to the next.
Equipment placement is the next question. An inverter and battery need a suitable, ventilated position that complies with the building's rules, and the cable route to the distribution board has to be agreed before work starts rather than worked out on the day.
For an office or professional practice, the critical loads are usually computers, the network and telephony, a server and the security system. The installation requirements should be confirmed with building management before any equipment is ordered or work begins.
What can stay on
A starting list of the loads usually worth backing up. Final sizing is confirmed on site.
- Office lighting
- Computers, servers and the network
- The office network router and fibre box
- Telephones and a reception desk
- CCTV and recorder
- A kitchen fridge
How it works
Cut the mains
A backup power system keeps your essential circuits running when the grid drops. Try the simulation below to see how power flows from the mains, through the inverter and battery, to the circuits you choose to back up.
- Lights
- Fridge
- Router
- CCTV
- PCs
Normal supply: mains power passes through the inverter to your essential circuits.
This is a visual simulation only and does not control physical electrical equipment.
Sizing estimate
How big a system do you need?
Wattages are typical estimates. Actual equipment consumption and the final system specification must be confirmed during a site assessment.
LED lights
10 W each
Fridge or freezer
150 W each
Wi-Fi router and fibre box
20 W each
CCTV cameras
8 W each
CCTV recorder
25 W each
Desktop PC with monitor
150 W each
TV or screen
100 W each
Split aircon, 12,000 BTU
1100 W each
Microwave
1200 W each
Kettle
2000 W each
Connected load
877 W
Suggested inverter
3 kVA
Estimated battery
5.12 kWh
Our smallest system is 3 kVA with a 2.56 kWh battery.
Inverter size allows for start-up surges from motors like fridges. Battery size allows for usable capacity and conversion losses. Geysers and stoves are best left off the battery. This is a starting figure, not a quote.
This calculator is a preliminary sizing aid and does not replace a site assessment, inverter compatibility checks, battery discharge limits, surge assessment or final electrical design.
The process
How your backup power installation works
- 1
Building briefing
Confirm with building management what access, security and working-hour rules apply before any work is planned.
- 2
Site visit
Inspect the office or apartment, list the critical loads and identify a compliant equipment position.
- 3
Written quotation
Receive an itemised quotation with the system details building management may ask to see.
- 4
Approvals and access
Obtain the building's approval and arrange access for the installation date within the permitted hours.
- 5
Installation
Fit and label the system, working within the building's agreed contractor hours.
- 6
Test and handover
With you present, verify that each selected circuit stays live when the mains is switched off.
FAQs
Backup Power Sandton — FAQs
Related pages
Related backup power pages
Get a quote
Get a backup power installation quote
Tell us what you need to keep running and how long for. We'll come back with a clear, itemised quotation for your Sandton premises.