Dtb Solar
Monument Heights, Northern Cape
5 (2)
Sol Plaatje Local Municipality
9 businesses serving Kimberley, and the local arithmetic behind their quotes: Kimberley averages 6.0 kWh/m²/day, so a 5 kW array here makes about 17.9 kWh on a June day and 8 541 kWh across the year.
Solar quotes are usually written against a national average, and the national average is wrong almost everywhere. Kimberley averages 6.0 kWh per square metre per day across the year, but the figure that decides whether your system disappoints you is the June one: 4.6, against 7.3 in December. That means a mid-winter day here still delivers about 63% of what a mid-summer day does.
Annual daily average
6.0
kWh/m²/day
June daily average
4.6
sizes your winter
December daily average
7.3
your best case
Irradiance figures are regional averages of global horizontal irradiance from the published South African solar resource maps. They describe the area, not your specific roof - pitch, orientation and shading can move a real installation 20% either way, which is what a site survey is for.
Kimberley sits in the second-best solar band in the country. The binding constraint is heat rather than sun: summer ambient temperatures routinely exceed the standard test conditions panels are rated at, so real output is meaningfully below nameplate on the days generation matters most.
Kimberley households are billed by Sol Plaatje Local Municipality rather than by Eskom, so the rand-per-unit on your bill is set by the municipality's approved tariff schedule and not by the national Homepower rates you will see quoted in most solar articles. That also means any grid-tied inverter has to be registered with Sol Plaatje Local Municipality and, in most cases, fitted with an approved bi-directional meter before it is legal to run. Ask any installer quoting you to name the registration process they will follow and whether the fee is inside or outside their quoted price - an install that skips it is the installer's shortcut and the homeowner's liability.
The table below applies the Kimberley irradiance figures to the four system configurations most commonly quoted in South Africa. Generation is what the array makes; the saving column counts only the share you actually consume, because most municipalities pay little or nothing for units you export.
| System | Summer day | Winter day | Per year | Monthly saving | Installed cost | Payback |
|---|---|---|---|---|---|---|
| 3 kW grid-tied, no batteryCutting a daytime-heavy bill. Gives you nothing during an outage. | 17.1 kWh | 10.8 kWh | 5 125 kWh | R722 - R1 055 | R55 000 - R80 000 | 4.3 - 9.2 yrs |
| 5 kW hybrid with 5 kWh batteryLights, plugs, WiFi, TV and a fridge through a typical outage. | 28.5 kWh | 17.9 kWh | 8 541 kWh | R1 703 - R2 488 | R110 000 - R160 000 | 3.7 - 7.8 yrs |
| 8 kW hybrid with 10 kWh batteryA family home keeping most circuits live, geyser excluded. | 45.6 kWh | 28.7 kWh | 13 666 kWh | R2 724 - R3 981 | R170 000 - R240 000 | 3.6 - 7.3 yrs |
| 10 kW hybrid with 15 kWh batteryWhole-home backup including heavy loads, or a small business. | 56.9 kWh | 35.9 kWh | 17 082 kWh | R3 405 - R4 977 | R220 000 - R320 000 | 3.7 - 7.8 yrs |
Assumptions, so you can argue with them
Generation = system kW × local irradiance × 0.78 performance ratio, which allows for inverter and cable losses, panel temperature derating, soiling and imperfect roof orientation. Savings count 65% of generation as self-consumed for systems without a battery and 92% for systems with one, valued at R2.60 to R3.80 per unit - the realistic spread across South African municipal and Eskom residential tariffs. Payback is simple payback and assumes electricity prices never rise again, which they will, so treat it as the pessimistic end. It excludes finance costs, maintenance and inverter replacement at roughly year 12. Divide your own bill by your own units to get the rate that applies to you, then rerun the sum in the cost calculator.
These figures are counted across the 9 businesses we hold data for in Kimberley. They describe the local market rather than any single company, and they are the fastest way to tell whether a quote you have been given is normal for this town or an outlier.
4.7
Median Google rating across 6 rated businesses
385
Public reviews behind those ratings
33%
Publish at least one certification (3 of 9)
33%
Offer financing (3 of 9)
Brand concentration matters more than it looks. Where one inverter brand dominates a town, local spares and someone who knows the firmware are easy to find, and a warranty claim is a phone call. Where you are the only household on an unusual brand, you are the one waiting for a part to be imported. If a Kimberley quote proposes a brand that appears nowhere in the list above, ask who services it locally before you sign.
Businesses on this page give their base as one of the following. They are listed together because a Kimberley installer will quote across the metro, and splitting them by suburb would only hide options from you.
Beaconsfield · Belgravia · Herlear · Monument Heights · New Park · Sol Plaatje
Ordered by claim status, then rating, then review volume. A claimed listing means the business has confirmed its own details with us; an unclaimed one is compiled from public sources and may be out of date, which we flag on the profile rather than hide.
Monument Heights, Northern Cape
5 (2)
Beaconsfield, Northern Cape
5 (1)
Belgravia, Northern Cape
4.9 (95)
Brands: Fronius, Victron, BlueNova
Beaconsfield, Northern Cape
4.5 (275)
Brands: Deye, Solis, Sunsynk
Monument Heights, Northern Cape
3.3 (10)
Brands: Enphase
New Park, Northern Cape
3 (2)
Beaconsfield, Northern Cape
Sol Plaatje, Northern Cape
Herlear, Northern Cape
Compare claimable and verified installers in South Africa's highest-intent metro markets.