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Solar Generators in South Africa

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A portable power station on a stoep table charging from two folding solar panels on the lawn of a South African house
BH-08
Rated output
1 to 10 kW inverter, 1 to 20 kWh battery
Fuel
Solar or mains charged battery
Output
Single phase 230 V
Service
Panel clean every 3 months, battery check yearly
Turnaround
Portable units same week, installed systems 1 to 3 weeks

A solar generator is a battery and inverter, charged by solar panels, that supplies 230 V power silently with no fuel and no fumes. The term covers portable power stations, wall-mounted battery inverter systems and solar and generator hybrids that combine panels with a diesel or petrol backup. GeneratorRepair.co.za is a free quote service: you list what you want to power on one form, and we pass it to independent solar and generator dealers and installers, who quote you directly. We do not sell or install systems ourselves.

Battery capacity, inverter output and surge

Two numbers matter. Battery capacity in kWh is how much energy is stored, and inverter output in kW is how much it can deliver at once. A 2 kWh power station with a 2 kW inverter can run a 100 W router, lights and TV for most of a load-shedding evening, but a 2 kW kettle would drain it in about an hour.

  • Surge: fridges, pumps and power tools can draw two to three times their running power at start-up, so check the surge rating
  • Battery type: lithium iron phosphate (LiFePO4) lasts roughly 3,000 to 6,000 cycles
  • Heavy loads: geysers, ovens and stoves are usually left off, or run on gas

Charge times: be realistic about solar

Panels give their rated output only in full sun. A 400 W folding panel produces roughly 1.6 to 2 kWh on a clear South African day, so a 2 kWh power station needs most of a day to refill. In a cloudy Cape winter or a wet KZN summer it may take two or three days. Most units also charge from a wall socket or car, so top them up whenever mains power is on.

Solar and generator hybrids

For a whole house, a farm or a business, a solar generator alone is often not enough. A hybrid inverter with batteries and roof panels handles daily load-shedding, while a fuel generator charges the batteries after several dark days or carries heavy loads. Many owners pair batteries with an inverter generator or a diesel generator on an automatic transfer switch. For long outages, borehole pumps or three phase motors, a fuel generator is still the practical choice.

Portable or installed solar generator

A portable power station simply plugs in, with no electrician needed. A fixed battery inverter system wired into your DB board needs a registered electrician, a Certificate of Compliance under SANS 10142-1 and, for grid-tied systems, municipal registration. Keep batteries out of direct sun, as heat shortens their life.

What to include in your request

  • List the appliances and hours you need to run
  • Say portable or installed into the DB board
  • Mention roof space and direction for panels
  • Say whether you already own a fuel generator
  • Ask for battery kWh, inverter kW and surge figures

Solar Generators for different sites

  • Homes: a power station or battery inverter for lights, Wi-Fi, TV and the fridge
  • Estates and complexes: battery backup for the gate motor, CCTV and guardhouse with panels on the roof
  • Farms and smallholdings: solar batteries for the farmhouse plus a diesel set for the borehole and pumps
  • Shops, offices and restaurants: a battery inverter keeping tills, card machines, Wi-Fi and lights on
  • Factories, mines and sites: solar battery backup for the site office, security and control systems
  • Lodges, venues and events: silent solar power for a remote lodge, campsite or outdoor event
  • Clinics, schools and towers: battery and panel backup for a clinic, school or cell tower

Frequently asked questions

Does GeneratorRepair.co.za sell solar generators?
No. We simply connect you, at no cost, with independent solar and generator dealers and installers near you. They quote with their own prices, warranties and installation terms, and you choose whether to go ahead.
How much does a solar generator cost?
As a rough guide, a 1 kWh portable power station costs R8,000 to R15,000, a 2 to 3 kWh unit with a folding panel R18,000 to R40,000, and an installed 5 kW inverter with a 5 to 10 kWh battery and panels R60,000 to R150,000. Prices vary with battery size and brand tier.
Can a solar generator run my fridge?
Usually, yes. A modern fridge uses about 1 to 1.5 kWh a day but surges at start-up, so choose an inverter of at least 1.5 kW and a battery of 1.5 kWh or more for a full day.
Is a solar generator better than a fuel generator?
For short load-shedding outages, lights, Wi-Fi and TVs, yes: it is silent and needs no fuel. For long outages, heavy loads, pumps or welders, a fuel generator is cheaper per kWh. Many homes end up with both.

Solar Generators by province and city

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