The Best Solar Companies in South Africa (2026)

First, decide what kind of company you need

Before ranking anyone, sort the market into three types, because they solve different problems.

Subscription and rental providers

These companies own the system and rent it to you for a monthly fee, handling maintenance and monitoring. GoSolr is one of the most visible, built around a no-deposit rental across the major metros. Wetility made its name with an app-driven approach aimed at getting a broad market onto solar quickly and affordably. The strength is low commitment and no equipment risk. The trade-off is that you never own the hardware, so the fee runs on indefinitely.

Full-range installers

These offer more than one way to pay (subscription, rent-to-own and outright purchase), so you can pick flexibility or ownership. Alumo, our install partner, sits here: a no-deposit subscription from around R1,299/month, rent-to-own over 3 and 7 years, and outright systems, all built on well-supported brands and backed by installation, financing and warranty. The advantage is that one assessment quotes you across every model, so you compare like for like.

Traditional EPC installers and platforms

SunSwitch, a Cape Town installer, is the classic design-and-install route. It suits you if you want a local company and are leaning towards buying. Hohm Energy is a different animal: more a platform that connects homeowners to third-party installers and finance. It is useful for casting a wide net, but the platform and the installer who actually does the work are separate companies, so vet whoever you end up matched with.

The five things that actually make a company good

Ignore the star ratings for a moment. Across every type above, the same five things separate a good experience from a regret. This is your real checklist.

1. Do they size to your actual usage?

The most common and most expensive mistake in solar is an undersized system sold on a low monthly price. A company that does a proper site assessment, looking at your roof, your consumption and your load-shedding exposure, then sizes the system to match, is worth far more than one that drops you into a generic tier. If a quote lands without anyone understanding how much power you actually use, be wary.

2. What equipment platform do they build on?

Years into ownership, what protects you is the support network behind the hardware. Well-supported brands (Sunsynk, Solis, AlphaESS and Huawei inverters; established lithium batteries from the likes of Sunsynk, AlphaESS and Eenovance; reputable panels such as Trina and Jinko) mean parts are available and local installers know the firmware. A technically brilliant but obscure platform that is hard to service locally is a worse buy than a well-supported mainstream one.

3. How strong is their support and warranty backing?

An inverter runs your home every day for a decade and occasionally needs attention. Ask who carries the warranty, how call-outs work, and how fast they can get to you. A company with a real local footprint and clear warranty backing beats a cheaper one that vanishes the moment something fails.

4. Are they honest about the trade-offs?

The best companies tell you where their model does not fit. A provider who admits a subscription costs more over a long stay, or that rent-to-own suits people staying put, is being straight with you. One that claims to be perfect for everyone is selling, not advising.

5. Is the quote transparent?

You want a clear breakdown: system size, components, what the monthly fee includes, cancellation terms and what happens at the end. Hidden exclusions are where good deals turn sour: call-outs not covered, battery degradation left on you, murky exit terms.

Matching a company to your situation

Now put it together. If you rent your home or might move within a few years, a subscription provider keeps you flexible. If you own and plan to stay, a full-range installer lets you choose rent-to-own or purchase and end up owning an asset that keeps saving. If you are in the Western Cape and want a local design-and-install company, that shortlist looks different again.

For a typical family that wants load-shedding cover on a path to ownership, a package like Alumo's Gold "The Power Bae" (a Sunsynk 5kW inverter, 5.32kWh battery and six panels from about R2,423/month) covers a busier home running more appliances at once, while the Silver "The Eishkom Ex" suits a more modest household.

1299Subscription, no deposit

2423 | unit=R | caption=Two Alumo entry points. Note these are different systems on different payment models, not a like-for-like price.Gold rent-to-own

The point is not that one company wins. It is that the right company for you falls out of two questions, how you want to pay and how settled you are, once you stop reading adverts and start applying the checklist above.

See real numbers before you decide

Rankings and reviews only take you so far. What clarifies everything is seeing an actual system sized for your roof, with real monthly figures across the payment models you are weighing up. Estimate your needs first, then get one proper assessment so you are comparing options in rands, not vibes.

A single free assessment can lay the subscription, rent-to-own and purchase routes side by side. Get a free Alumo quote → to see which lands best for your home and budget.

Frequently asked questions

Who is the best solar company in South Africa?

There is no single best — it depends on whether you want to rent or own, your budget, your usage and your location. Subscription brands suit flexibility, full-range installers suit ownership options, and traditional installers suit buyers who want a local design-and-install partner. Match the type to your situation using the checklist above.

Is a subscription provider or a full-range installer better?

Neither is universally better. A subscription provider is ideal if you want low commitment and zero equipment risk; a full-range installer is better if you want the option to own the system eventually. A company that offers both, like Alumo, lets you compare within one assessment.

How do I avoid being sold an undersized system?

Insist on a proper site assessment before accepting any quote. A good company looks at your actual electricity usage, your roof and your load-shedding exposure, then sizes the system to match — rather than quoting a low monthly price on a system too small to meaningfully cut your Eskom bill.

What brands should a good system use?

Look for well-supported mainstream equipment: inverters such as Sunsynk, Solis, AlphaESS or Huawei; established lithium batteries; and reputable panels like Trina or Jinko. These have strong local support and parts availability, which matters far more than a marginally better spec on an obscure brand.

How does SolarGuide choose which companies to feature?

SolarGuide is an independent comparison site. We cover the market editorially and currently arrange quotes through our install partner, Alumo, who supplies, installs, finances and warrants the systems. Other providers are covered on their merits. Pricing is indicative and subject to a site assessment and credit approval. Get a free Alumo quote →