Backup Power Systems Installation in Pretoria CBD
When the mains drops, the lights, fridge, router and cameras stay on.
Inverter and battery systems for offices, shops and apartment buildings in the Pretoria CBD, wired around the circuits you need to keep running.
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.
What we install
Backup power equipment we install
Inverter and battery systems
Backup power systems sized around your connected load and the number of hours you want to remain powered. Wall-mounted equipment can help where floor space is limited.
Essential-circuits board
An essential-circuits board separates the lights, selected plugs, fridge and network equipment from heavy loads such as geysers and stoves, helping you manage battery capacity.
CCTV, alarm and network backup
Keep selected security cameras, recorders, alarm panels and fibre routers on the backup supply, subject to system sizing and compatibility.
Solar-ready design
Plan the inverter, battery and essential circuits so compatible solar panels can be added later without unnecessarily reworking the installation.
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
627 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.
Pretoria CBD buildings
Installing backup power in a Pretoria CBD building
Backup power systems in the Pretoria CBD are often installed in shared buildings such as apartment blocks, office suites and retail premises. A few practical points help an installation go smoothly.
- Shared buildings may require approval from the body corporate, landlord or managing agent before installation work begins.
- Inverters and batteries need suitable mounting space, ventilation and safe access.
- Access arrangements may include security procedures, lifts and loading bays.
- Cable routes through shafts, ceilings and common areas must be agreed during the site visit.
- Equipment placement and installation methods must suit the building and applicable requirements.
Watt Electrical Energy Solutions can provide the proposed system details required by the building's managing agent, landlord or body corporate.
The process
How your backup power installation works
- 1
Site visit
Walk the building, list the loads to back up and identify suitable equipment locations.
- 2
Written quote
Confirm the proposed system size and which circuits will and will not receive backup power.
- 3
Building approval and access
Arrange necessary approval from the body corporate, landlord or managing agent, together with security access.
- 4
Installation
Mount the equipment, install or connect the essential-circuits board as specified, and label every circuit.
- 5
Test and handover
With the customer present, demonstrate the approved backup operation and explain exactly which circuits remain powered during a mains interruption.
FAQs
Backup power in Pretoria CBD — FAQs
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 Pretoria CBD premises.