Solar Rent vs Buy in SA: The 10-Year Math (2026)

Honest math on solar rental (GoSolr, Wetility, Versofy) versus buying outright versus just continuing to pay Eskom. The answer is rarely a clean win for rental on cost alone - it’s a trade-off about cash flow and risk.

Buying a 5 kVA / 10 kWh / 4-panel system at R117,000 mid-range, plus 10 years of insurance (~R15,000) and maintenance (~R20,000), and crediting back R25,000 of residual value, totals roughly R127 000 over 10 years.

Renting at the average mid-tier subscription price of R2,763/month (across GoSolr, Wetility, Versofy) for 10 years is R331,560, plus typical CPI-linked escalation, totals approximately R381 294.

Buying is roughly R254 294 cheaper over 10 years. But the comparison isn’t just total cost - it’s when you pay it, what risk you carry, and what happens if your situation changes.

When renting makes sense

Note: rental is rarely a savings play vs Eskom-only for a typical home. It is a no-upfront-capital, no-ops, transferable-on-move arrangement. Treat it as utility-style, not as investment.

• You want solar but cannot finance R100K+ upfront. Solar loans exist (R-A-S, Discovery, FNB, BetterBond) at 12-18% interest, but R117K over 10 years at 14% adds about R1,800/month in interest alone - close to the equivalent rental, and you still own a 10-year-old battery at the end. Rental can come out ahead in this scenario for cash-flow reasons.
• Your monthly Eskom bill is already R5,500+ AND you can’t buy. Above that bill threshold, the rental + reduced Eskom is genuinely cheaper than continuing to pay Eskom in full. Below it, rental costs more month-to-month than just staying on the grid.
• You want zero operational involvement. Rentals bundle insurance, maintenance, monitoring, and replacement into the monthly fee. If you don’t want to be the warranty manager and theft-insurance claims-handler for your own equipment, that convenience has real value.
• You expect to move within 3-5 years. Most rentals let you transfer the contract to the new owner or pro-rata cancel. Buying creates a R100K+ asset on your roof that adds maybe R30-60K to your sale price - the rest of the value evaporates.
• You don’t want to vet installers yourself. Rental providers do the vetting and underwrite the install. If you don’t want to read 5 quotes, check references, and hold an installer accountable, paying the rental premium is rational.

Outage protection used to be the headline reason to rent. With load shedding ended, less than 10-15% of new installs in 2026 are primarily about backup - the rest are about Eskom-bill economics or property-value upside. Be honest with yourself about which one you’re actually buying.

When buying is the right call

• You plan to stay 7+ years. Beyond year 7, buying cumulatively beats renting by R5-15K per year as the rental escalation compounds.
• You can pay cash or finance under 12%. Cash buyers always win on total cost. Financed buyers under 12% interest still win over 10 years vs rental.
• You want the asset value at end of life. A well-maintained 10-year-old solar system retains R30-60K of resale value (panels are still rated above 80% output for 25 years). Renters return their equipment.
• You want to oversize for SSEG buyback. If you’re in Cape Town and want to put 12 panels on a 5 kVA system to maximise excess solar income, you’ll need to buy - rentals don’t typically allow this kind of customisation.
• You’re running a small business or work-from-home setup that’s tax-deductible. Section 12B accelerated depreciation (still active for businesses) tilts the math heavily toward buying.

SA solar rental providers compared

Three active subscription providers in SA as of April 2026. Pricing tiers and contract terms compared below - confirm directly with each provider as headline pricing changes regularly.

All three include insurance, maintenance, and 5-year minimum contracts with optional buyout. Pricing tiers correspond loosely to: entry = 3 kVA / 5 kWh, mid = 5 kVA / 10 kWh + 4 panels, large = 8 kVA / 15 kWh + 8 panels. Compare directly with each provider as headline pricing changes regularly.

The hidden costs nobody mentions

For owners:

• Battery replacement at year 10-12 (R50-80K depending on size). LiFePO4 lasts 6,000+ cycles, but capacity degrades. Budget for it.
• Inverter replacement at year 8-12 (R15-30K).
• Panel cleaning + occasional cell-string failures (R1,000-R3,000/year average).
• Roof leak risk - poor flashing on solar mounts is a common installer mistake. Budget R5-15K to fix if you discover it.
• Insurance rider - your home cover does NOT automatically include solar. Add R100-200/month.

For renters:

• Early-exit fees - typically pro-rated but can be R20-40K in years 1-2.
• Property-sale awkwardness - new owner must agree to take over the contract or you pay the cancellation. Some buyers walk away from properties with active solar rentals.
• Rental escalation - most contracts CPI-link or have fixed annual increases (5-7%). Over 10 years that compounds.
• No customisation - you can’t add panels, change inverter, or upgrade battery without renegotiating the contract.
• End-of-contract buyout pricing - the “optional buyout” price at year 5/10 is rarely a steal. Be sure your contract caps it.

Quick decision

Updated 28 April 2026. Rental prices direct from each provider’s public tariff page (Apr 2026). Buy-side modelling assumes mid-range install at R117K, 5kVA / 10 kWh / 4 panels. Sensitivity to inputs: ±15% based on city, installer, brand choice.