Is Solar Worth It in 2026? The Real Payback Numbers After Load Shedding
Eskom has gone over 475 days without national load shedding. Tariffs have not stopped climbing. Here is the honest, numbers-based answer on whether solar still makes sense in 2026.
If you last shopped for solar during a Stage 6 winter, the ground has shifted under you. Eskom has kept the lights on nationally for well over a year. At the same time, your electricity bill has probably gone up again. This post walks through what changed, whether solar is still worth it in South Africa in 2026, and what to actually do if you already own an inverter and battery.
What Actually Happened to Load Shedding
Three things turned this around. Medupi Unit 4 came back online in July 2025, eight months ahead of schedule, adding 800MW. Koeberg Unit 1 returned in October 2025 after a long refurbishment, restoring 930MW of steady nuclear power. Eskom's Energy Availability Factor, the percentage of the fleet actually able to generate power, climbed from around 56% in December 2024 to close to 69% by December 2025, driven by its Generation Recovery Plan and heavier maintenance spend.
Unplanned breakdowns across the coal fleet also dropped sharply, from around 15,000MW in early 2024 to under 8,000MW through 2025 and 2026. Eskom's own Summer and Winter Outlooks for the 2025/26 and 2026/27 periods both projected no load shedding, and both held. That is a genuine, measurable improvement, not just a lucky season. You can check the current status any time on our load shedding schedule page or the EskomSePush app.
Is Solar Still Worth It Now That Load Shedding Has Eased?
This is the accountant's view, not the marketing view. Solar has always been two separate products bundled into one sale: backup power (the battery) and bill reduction (the panels and inverter feeding your daytime load). Load shedding stopping removes urgency from the backup half. It does nothing to the bill-reduction half, because Eskom and municipal tariffs are set by NERSA years in advance and are not linked to whether the grid is stable.
In fact, the case for the panels-and-inverter half of solar is arguably stronger now than during the worst blackout years, because tariffs have kept rising even as load shedding stopped. See our full solar buying guide for South Africa before you get quotes, so you know what a fair price looks like.
Why Rising Eskom Tariffs Change the Maths
These increases come from a court-ordered recalculation of Eskom's allowed revenue, on top of the usual annual NERSA process. Electricity prices in South Africa have climbed more than 600% since 2008, well ahead of inflation over the same period. That trend line matters more to your solar decision than this month's load shedding stage, because a solar system you install today will still be generating power in 15 or 20 years, through several more rounds of tariff hikes.
| Customer type | Increase | Effective |
|---|---|---|
| Eskom direct customers | 12.74% | 1 April 2025 |
| Municipal bulk purchase | 11.32% | 1 July 2025 |
| Eskom direct customers | 8.76% | 1 April 2026 |
| Municipal distributors (avg) | 9.01% | 1 July 2026 |
| Eskom direct customers (approved) | 8.83% | 1 April 2027 |
Municipal increases are not uniform. Cape Town residents got the lowest approved hike in 2026 at around 7.5%, while Buffalo City in the Eastern Cape faced roughly 14%. If you are on a municipal supplier like City Power, Tshwane, Ekurhuleni, or eThekwini, check your own municipality's gazetted tariff rather than assuming the national Eskom figure applies to you. Read more on this trend in our electricity cost in South Africa guide.
Solar Payback in South Africa: Savings, Tariffs and Usage Patterns
Payback comes down to three things: how much you pay Eskom or your municipality per kWh (kilowatt-hour, the unit you get billed on), how much of your usage happens during daylight hours, and how much you spent on the system. A pool pump, geyser, or tumble dryer running during the day gets covered directly by solar generation. A household that only uses power at night after work gets far less benefit from panels without a battery, because the sun is not shining when the load happens.
As a rough guide, solar's own cost of generation over a system's lifetime works out to around R0.95 to R1.10 per kWh, once you spread the upfront cost over 15 to 20 years of production. Compare that to municipal residential tariffs that are commonly R2.80 to R3.50 per kWh in 2026, and the gap is what drives your monthly saving.
A Johannesburg household paying R3,200 a month, mostly on a City Power residential tariff, installs a 5kW system without a battery for R95,000. If solar covers 45% of that bill, monthly savings are about R1,440. At that rate, the system pays for itself in just under 5.5 years, before accounting for further tariff increases that shorten payback each year.
Northern Cape and parts of the Free State get the highest annual sun hours in the country, which means panels there produce more energy per installed kilowatt than the same system in a cloudier coastal region, shortening payback further. Wherever you are, your last 12 months of municipal or Eskom bills are the single most useful document for working out your real payback, far more useful than a generic online calculator.
What Should You Do With an Existing Inverter and Battery System?
If you installed a system during the Stage 6 years mainly for blackout protection, do not disconnect it or let it sit idle now that national load shedding has paused. Three things are worth checking:
- Reconfigure the priority settings. Many systems were set up to keep the battery fully charged at all times as insurance against the next outage. With the grid stable, you can shift the inverter to prioritise self-consumption and time-of-use charging instead, which uses the battery to shave your most expensive Eskom units rather than just sitting on standby.
- Check battery health. Lithium batteries lose a small amount of usable capacity every year regardless of use. If your battery is more than 4 to 5 years old, ask an installer to test its remaining capacity rather than assuming it is still at 100%. Our guide to battery reconditioning covers what can and cannot be restored.
- Review your export or feed-in settings if your municipality offers a solar feed-in tariff, since some metros have introduced or adjusted these programmes as more homes went solar.
Selling a working battery to recoup cash rarely makes financial sense. Second-hand battery prices are weak, and you would be giving up backup cover for a return that is small compared to what the battery still saves you monthly. See our solar battery prices page for current new and typical resale values if you are weighing this up.
Who Should Still Consider Installing Solar in 2026?
You are a good candidate if any of the following apply to your household:
- Your monthly electricity bill regularly exceeds R2,000, giving Eskom's rising tariffs real bite on your budget.
- You run a pool pump, borehole pump, geyser, or home office equipment mostly during the day.
- You live in an area that still experiences municipal load reduction or frequent cable theft and infrastructure faults, even without formal load shedding.
- You plan to stay in the home for at least 5 to 7 years, long enough for a battery-free system to pay itself back.
- You want to add value to the property. Verified solar installations are increasingly viewed as a selling point in the current South African housing market.
If your usage is mostly at night, your bill is under R1,500 a month, or you plan to move within two to three years, the payback maths gets harder to justify, and a smaller, targeted system or simple energy efficiency upgrades may serve you better than a full installation. Compare current supplier pricing on our solar panel prices in South Africa page before committing to any quote.
Load Reduction: What's Still Happening on the Ground
Load reduction happens when a specific substation or feeder is carrying more electricity than it was built for, often in townships and older suburbs with illegal connections adding strain. Eskom has installed and activated over 73,000 smart meters as part of a plan to remove 271 feeders from load reduction by 2027, and had removed 70 feeders as of early 2026, benefitting close to 96,000 customers, mostly across Gauteng, Mpumalanga, Limpopo, and KwaZulu-Natal.
If you live in an area still affected by load reduction, or your municipality has ageing cabling prone to faults, a small battery still earns its keep even though national load shedding is paused. Check your suburb specifically rather than assuming the national picture applies to you. See our page on what load shedding actually means for the difference between stages, load reduction, and ordinary municipal faults.
Solar vs Staying on Eskom or Municipal Power Only
Here is a simplified, illustrative comparison for a household currently paying around R2,800 a month, assuming tariffs keep rising by roughly 9% a year, which is in line with the increases approved for 2026 and 2027.
| Approach | Upfront cost | Monthly cost, year 1 | 15-year total cost* |
|---|---|---|---|
| Stay on Eskom/municipal only | R0 | R2,800 | ≈R860,000 |
| 5kW solar, no battery | R90,000 | ≈R1,650 | ≈R605,000 |
| 5kW solar + 10kWh battery | R150,000 | ≈R1,050 | ≈R555,000 |
*Illustrative figures based on 2026 pricing and a 9% average annual tariff increase. Your actual savings depend on your usage pattern, tariff structure, and system quality. Get itemised quotes before deciding.
Notice that the battery version costs more upfront but wins over 15 years, because it captures more of your evening usage too. Whether that trade-off is right for you depends on cash flow as much as total cost. If R150,000 upfront is not realistic, a smaller panel-and-inverter-only system still beats doing nothing by a wide margin. Compare current inverter pricing on our home inverter prices page.
How to Get the Most Value From Solar Without Overspending
The biggest overspend I see in South African solar quotes is sizing a system for maximum backup during a Stage 6 winter that, as of 2026, is not the reality most homes need to plan around. Oversized batteries are the single most expensive line item on a quote and the slowest to pay back.
- Pull 12 months of bills to see your real average and peak usage, not a guess.
- Ask for panels, inverter, and battery priced separately on every quote, so you can see where your money is actually going.
- Confirm SABS-compliant components and insist on a Certificate of Compliance (COC) from a registered electrician, both for safety and because most home insurers require it for solar-related claims.
- Match battery size to real need, not maximum blackout protection. A smaller battery covering your fridge, router, and a few lights costs far less than one sized to run the whole house for a full evening.
- Compare cost per installed watt across quotes. In 2026, a fair, well-specified system lands around R13 to R16 per watt-peak; quotes well outside that range deserve questions.
If you are building from scratch rather than buying a packaged system, our DIY solar panel tutorial and off-grid solar system guide walk through the component-by-component approach. And if load shedding does return in your area at any point, our load shedding solutions page covers backup options beyond solar too.
Frequently Asked Questions About Solar in South Africa After Load Shedding
Yes, for most homes solar is still worth it, but the reason has shifted from backup power to cost saving. With Eskom tariffs rising by roughly 8 to 9 percent a year and municipal tariffs even higher in some metros, a well-sized solar system without a big battery still pays for itself through lower monthly bills.
Eskom has not implemented national load shedding since mid-May 2025, a run of well over 400 consecutive days as of late 2026. Localised load reduction still happens in some overloaded suburbs and municipal faults still cause outages, so it is not the same as a guarantee of uninterrupted power everywhere. Check your area on our load shedding schedule page.
Eskom's tariffs are set by NERSA years in advance and are not linked to whether load shedding is happening. Direct Eskom customers saw increases of 12.74 percent in April 2025 and 8.76 percent in April 2026, with a further 8.83 percent approved for April 2027, mainly to recover past capital and maintenance costs.
No, keep your existing inverter and battery system running. It still protects you from municipal faults, cable theft outages, and any future load reduction, and it continues to save you money every month by shifting your usage to solar and cheaper off-peak charging.
A 5kW grid-tied solar system without a battery typically pays for itself in 4 to 6 years for a household spending R2,000 to R3,500 a month on electricity. Adding a large battery extends payback to 7 to 10 years because batteries cost more and save you less on the electricity bill itself.
A 5kW solar system without a battery costs roughly R75,000 to R110,000 fully installed in 2026, including panels, a hybrid inverter, mounting, cabling, and a Certificate of Compliance. Adding a 5 to 10kWh lithium battery typically pushes the total to R135,000 to R165,000. See current figures on our solar panel prices page.
A battery is optional now for most homes, since the main driver has shifted from blackout protection to bill reduction. A battery still makes sense if you work from home, run medical equipment, live in an area with frequent municipal faults, or simply want peace of mind.
A correctly sized 5kW system can offset 40 to 60 percent of a typical household's daytime electricity use, which often translates to R1,000 to R2,500 in monthly savings depending on your tariff and usage pattern. Savings are highest for households that run pool pumps, geysers, and appliances during daylight hours.
Staying grid-tied with a hybrid inverter is the better option for almost all homes, because it costs far less than a full off-grid solar system and still gives you the savings and backup you need. Full off-grid setups make sense mainly for rural properties with no grid connection at all. See our off-grid solar system guide for the full comparison.
Load reduction is a targeted power cut in specific overloaded feeders or substations, usually during evening peak hours, and it is separate from national load shedding. Eskom has been removing feeders from load reduction and installing smart meters, but tens of thousands of households in parts of Gauteng, Limpopo, Mpumalanga, and KwaZulu-Natal are still affected.
The individual solar tax rebate that offered 25 percent back on new panel costs, up to R15,000 per person, applied to the 2023/24 tax year and has since lapsed. Always check the current SARS rules with a registered tax practitioner before assuming any rebate still applies, since incentive rules change.
Yes, NERSA has already approved further increases for the next few years as Eskom recovers debt and infrastructure costs. Municipal tariffs, which around two-thirds of South Africans pay, rose by an average of 9.01 percent from July 2026 and vary by metro, from about 7.5 percent in Cape Town to 14 percent in Buffalo City.
Panel prices have already dropped roughly 40 percent over the past two years and further big drops are unlikely, while Eskom and municipal tariffs are locked in to rise every year regardless. Waiting for cheaper panels usually costs more in missed savings than it gains in equipment discounts.
Most homes using under 600kWh a month are well matched to a 3 to 5kW system, while homes using 600 to 1,000kWh a month usually need 5 to 8kW. Your best starting point is 12 months of Eskom or municipal bills, which show your real usage pattern rather than a guess. Our solar buying guide covers sizing in more detail.
Independence disclaimer: Alternative Energy Sources is not affiliated with any solar installer, panel manufacturer, battery brand, or Eskom. We do not receive commission for recommending any product mentioned on this page.
Prices, tariffs, and load shedding status change regularly. Always verify current figures with Eskom, NERSA, your municipality, or a registered installer before making a purchasing decision.