What makes a good solar panel?
Four things matter: efficiency (how much electricity per square metre), degradation rate (how fast does it lose output over 25 years), warranty terms (product + performance), and local distributor support (can you actually claim if something fails?).
Top solar panel brands in South Africa 2026
LONGi Hi-MO 6 (550–580 Wp)
Efficiency: 22.8% | Price: R1,800–R2,400/panel | Warranty: 25-year performance, 12-year product
LONGi is the world's largest solar manufacturer. The Hi-MO 6 uses HPBC (Hybrid Passivated Back Contact) cell technology for class-leading efficiency. Strong local distributor network in SA. Excellent 25-year linear performance warranty (only 0.4%/year degradation).
Best for: Premium build quality, limited roof space, maximum long-term yield.
Canadian Solar HiHero (430–460 Wp)
Efficiency: 22.5% | Price: R1,600–R2,200/panel | Warranty: 25-year performance, 15-year product
Canadian Solar's residential HiHero series uses TOPCon cells for excellent low-light performance — ideal for the Western Cape's cloudy winter months. 15-year product warranty is among the best in the industry.
Best for: Areas with variable cloud cover, buyers prioritising product warranty length.
JA Solar JAM72S30 (540–550 Wp)
Efficiency: 21.0% | Price: R1,400–R1,900/panel | Warranty: 25-year performance, 12-year product
JA Solar offers the best price-to-performance ratio in the SA market. MONO PERC technology, proven reliability, and wide local distribution. The most popular panel brand used by SAPVIA-registered installers in SA.
Best for: Budget-conscious buyers who don't want to compromise on quality.
Risen Titan (550–580 Wp)
Efficiency: 21.4% | Price: R1,300–R1,700/panel | Warranty: 25-year performance, 10-year product
Risen offers competitive pricing but a shorter 10-year product warranty. Strong performance data but less established local distributor support compared to JA or LONGi.
Best for: Lowest upfront cost; not recommended if long-term warranty support is a priority.
What installers recommend
Based on feedback from our network of SAPVIA-registered installers across SA:
- Best overall value: JA Solar — reliable, well-supported, competitive price.
- Premium choice: LONGi Hi-MO 6 — worth paying for limited roof space or maximum ROI.
- Avoid: No-name brands with no South African distributor — warranty claims become impossible if the company folds.
Get a free solar quote and your installer will recommend the best panel for your roof and budget.