Savings
Is solar worth it in South Africa in 2026?
For most metro homes that spend over about R2 000 a month on electricity and are home or running loads during the day, yes: solar mainly pays through lower bills, with backup as a bonus. With 2026/27 rates of roughly R3.30 to R4.70 per kWh and fixed charges you cannot avoid, the case is strongest when you use most of what you generate yourself and buy durable equipment.
Updated 26 October 2026 · Tariffs quoted are the 2026/27 municipal year (from 1 July 2026) unless stated.
When it is usually worth it
- Your monthly use reaches the top tariff block, for example above 600 kWh in Cape Town or above 500 kWh on City Power prepaid.
- You own the home, plan to stay several years, and have an unshaded north, east or west roof.
- You can move big loads (geyser, pool, washing) into daylight hours.
- You buy equipment with a long field record and a local warranty you can actually claim.
When it often is not
- Very small bills. Cape Town’s example 250 kWh household pays about R1 314 a month including the fixed charge; the part solar can remove is small.
- Renting or selling soon, unless the landlord shares the cost.
- Heavily shaded or tiny roofs.
- Buying on sticker price alone. The cheapest battery or inverter is rarely the cheapest over ten years.
What changed since the load-shedding years
When outages were daily, people bought backup first and savings second. In 2026 the stronger reason is the bill: municipal bulk tariffs rose 12.74% in 2025/26 and another 9.01% in 2026/27. That changes how you should size a system. Size panels and battery to cut the kWh you buy, then check it still covers the essentials during an outage, not the other way round.
Three numbers to have before you ask for quotes
- Your average monthly kWh over the last 12 months.
- Your tariff name and top-block rate.
- How much you use between 6pm and 10pm (this sets the battery size for savings).
Then compare quotes on cost per kWh saved, not on panel count. Our payback guide shows the maths on real 2026/27 rates, and check a quote lists the red flags.
Quick questions
Is solar still worth it now that load shedding has eased?
Yes for most high-bill metro homes, because savings come from avoiding expensive tariff blocks every month, not from outages.
How much can solar save per month?
It depends on your tariff and use. On Cape Town 2026/27 Home User rates, cutting grid use from 800 to 400 kWh a month saves about R1 650.
Do I need batteries for solar to be worth it?
Not always. Panels plus a grid-tied or hybrid inverter can cut daytime use on their own. A battery adds savings when you use a lot of power in the evening.
Sources
- City of Cape Town: The cost of electricity (Home User 2026/27)
- NERSA media statement: Eskom retail tariffs 2026/27 (5 March 2026)
- NERSA decision: City Power 2026/27 tariff application
- NERSA decision: eThekwini 2026/27 tariff application