Wetility and Alumo both promise to get you off the load-shedding treadmill without a punishing upfront cheque, and both have become familiar names to South Africans shopping for solar on a monthly budget. Where they differ is emphasis: Wetility has built its reputation on an accessible, app-first, get-solar-quickly approach, while Alumo spans the full range from no-deposit subscription through rent-to-own to outright purchase. Neither is universally "better". They're aimed at slightly different buyers.
This is an independent comparison. We currently arrange quotes through our install partner, Alumo, so its package details appear here in more depth, but we cover Wetility on its merits and the framework below works no matter which you choose. The aim is to help you match the provider to your home and your plans, not to crown a winner.
Key takeaways
Wetility leans into accessible, app-driven solar aimed at getting households onto clean power quickly and affordably.
Alumo offers the full spread (subscription, rent-to-own and purchase), so one assessment can compare all three.
The deciding factors are system sizing for your usage, ownership goals, and what the monthly fee actually covers.
Match the model to your plans: flexibility points to subscription, staying put points to rent-to-own or buying.
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Two different centres of gravity
Wetility's identity is accessibility. Its model leans on a smooth digital experience: a strong monitoring app, straightforward sign-up, and financing pitched to get a broad market onto solar without a large upfront cost. The focus has been on removing friction and making solar feel within reach for households that might otherwise assume it isn't. For a lot of people, that ease of entry is the thing that got them started.
Alumo's centre of gravity is range and ownership. It offers a no-deposit subscription from around R1,299/month (AlphaESS 5kW inverter, 3.6kWh battery, four panels, cancel after 24 months), but it's best known for rent-to-own, with 3-year and 7-year structures from around R1,911/month and R1,339/month, and it will also sell you a system outright. That breadth means the same provider can serve a renter who wants flexibility and a homeowner who wants to own an asset, from a single site assessment.
If your priority is getting solar in place fast and cheaply with minimal fuss, an accessible subscription-style provider fits. If your priority is eventually owning the system so the payments stop and the savings run pure, a rent-to-own path fits better. Knowing which of those describes you is most of the decision.
What to compare, provider aside
Whichever brand you lean towards, the same handful of factors decide whether you end up happy. Do not get distracted by the logo; interrogate these.
System sizing versus your real usage
This is the one that makes or breaks a solar decision. A modest battery is plenty for a household that mainly wants to ride through load-shedding and shave the evening peak. A busy family running a pool pump, tumble dryer and several air-cons at once needs a lot more inverter and battery capacity, or the system keeps leaning on Eskom and the savings disappoint. Any credible provider does a proper site assessment and sizes to your actual consumption rather than dropping you into a generic tier.
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A good subscription bundles monitoring, maintenance and repairs, so a failed component never lands on your bill. Confirm this explicitly. Ask whether inverter faults, battery issues and call-outs are covered. Handing equipment risk to the provider is the whole point of not owning the hardware, so it should be watertight.
Ownership and long-term cost
If you are staying in your home for years, rent-to-own or buying usually beats a pure subscription over the long run, because eventually you stop paying and keep an asset that carries on saving. If you rent, or you might move, a subscription's flexibility is worth paying for. Decide which matters more to you before you sign.
Support and equipment platform
Years into ownership, what protects you is the support network behind the hardware. Alumo builds around well-supported brands like Sunsynk hybrid inverters, partly because local installers know them, parts are available and the warranty backing is solid. Whoever you choose, ask who stands behind the equipment and how fast they can service it when something goes wrong at 8pm on a Tuesday.
Where Alumo's range helps
The practical advantage of Alumo for many buyers is simply that you do not have to commit to a model before you see the numbers. One assessment can quote you a subscription, a 3-year rent-to-own and a 7-year rent-to-own side by side, so you can weigh flexibility against ownership with real figures for your roof.
For a typical home, the most popular option is the Silver "The Eishkom Ex", a Sunsynk 3.6kW inverter with a 3.8kWh battery and four panels from around R2,035/month, enough to carry a household through load-shedding while building towards ownership.
If you want to keep the door open to walking away, the subscription route gives you a clean 24-month exit. If you know you're staying, the 7-year rent-to-own spreads the cost thin while still ending in an owned system. Get a free Alumo quote → to see which structure lands best for your budget.
Making the call
Here's the short version. Choose based on how settled you are and whether you want to own the system. If you rent, expect to move, or just want the fastest, lowest-fuss entry, an accessible subscription (whether Wetility's or Alumo's) fits. If you own your home, plan to stay, and want the lowest lifetime cost, lean towards rent-to-own or buying, which is where Alumo's range earns its place.
Either way, get one system sized properly for your usage before you compare prices, because a cheap monthly fee for an undersized system is the most common and most expensive mistake in this whole category.
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R2 000/ month
R500R8,000+
Our suggestion
Silver
The Eishkom Ex
The popular middle ground for most family homes that want solid daily solar and backup.
Sunsynk Powerlynk X — 3.6kW
Sunsynk 3.8kWh · ~3–4 hours backup
4 panels · 615W panels
Rent-to-own from
R2,035/mo
Est. monthly saving
~R1 200
That's about R835/month on top of what you save, for a system that becomes yours and shields you from rising tariffs.
Estimate only. A free site assessment sizes your system properly against your actual usage, roof and budget.
Frequently asked questions
Is Wetility or Alumo cheaper?
It depends on the model and system size, so a blanket answer would be misleading, and we avoid quoting competitor prices that may be out of date. A subscription entry point is often lower than rent-to-own, but you never own the equipment. Compare like-for-like quotes for equivalently sized systems to see the real difference.
Does Alumo offer a subscription like Wetility?
Yes. Alumo has a no-deposit subscription from around R1,299/month with a 24-month minimum, alongside its rent-to-own and outright-purchase options. So you can get the accessible, low-commitment experience from Alumo too, with the option to move towards ownership later.
Which suits a household that runs a lot of appliances?
A home running a pool pump, tumble dryer and several air-cons at once needs more inverter and battery capacity, such as a 5kW inverter with a larger battery. The right answer comes from a site assessment that sizes to your actual usage rather than a default plan tier.
Can I own the system eventually?
With a pure subscription, no: you pay to use a system the provider owns. With rent-to-own, yes: the system becomes yours at the end of the term. Alumo offers both, so you can choose ownership or flexibility.
How does SolarGuide fit in?
SolarGuide is an independent comparison site. We cover providers like Wetility editorially and currently arrange quotes through our install partner, Alumo, who supplies, installs, finances and warrants the systems. Pricing is indicative and subject to a site assessment and credit approval. Get a free Alumo quote →
SolarGuide is an independent referral partner. We help you compare options and arrange a free quote — Alumo supplies, installs, finances and warrants the systems. Pricing is indicative, sourced from Alumo’s published catalogue, and subject to a site assessment and credit approval.
