SOLARWATT solar panels for Northern Ireland homes, farms and businesses
SOLARWATT solar panels are the core of every system we install. Choose Vision glass-glass panels for the longest warranty, or Classic glass-foil panels for the best price-performance.
Solar Power NI has partnered with SOLARWATT since 2010.
Four SOLARWATT panels for homes, farms and businesses
Both ranges use TOPCon half-cut cells and are rated salt-mist and ammonia resistant, which matters on coastal homes and livestock buildings.
SOLARWATT Vision Black
- 30-year product warranty
- 30-year performance warranty (90%)
- FullCoverage insurance, 5 years
- Fire class A, 5,400 Pa load
SOLARWATT Vision Silver
- 30-year product warranty
- 30-year performance warranty (90%)
- FullCoverage insurance, 5 years
- Fire class A, 5,400 Pa load
SOLARWATT Classic Black
- 20-year product warranty
- 25-year performance warranty (89.4%)
- Up to 22.2% module efficiency
- Lighter at 20.8 kg
SOLARWATT Classic Silver
- 20-year product warranty
- 25-year performance warranty (89.4%)
- Up to 22.2% module efficiency
- Lighter at 20.8 kg
Vision vs Classic: comparing SOLARWATT solar panels
| Specification | Vision (glass-glass) | Classic (glass-foil) |
|---|---|---|
| Product warranty | 30 years | 20 years |
| Performance warranty | 30 years, 90% of nominal power | 25 years, 89.4% of nominal power |
| FullCoverage insurance | Included, 5 years | Optional |
| Power classes | 420–425 Wp | 420–435 Wp |
| Module efficiency | 21.5–21.8% | 21.5–22.2% |
| Cells | Bifacial TOPCon half-cut | TOPCon half-cut |
| Weight | 25.4 kg | 20.8 kg |
| Pressure load | Up to 5,400 Pa | Up to 3,600 Pa |
| Fire class | A | C |
| Temperature coefficient (Pmax) | −0.29 %/K | −0.31 %/K |
What are the best solar panels for homes in Northern Ireland?
There's no single best panel. The right choice depends on your budget, your roof and how long you plan to stay, so we recommend a range after your site survey.
Choose Vision if…
You want the longest warranty cover, you plan to stay for decades, or your roof is exposed to high wind and snow loads. The glass-glass build and included insurance give the most protection over time.
Choose Classic if…
Upfront cost matters most, or roof weight is a concern. Classic panels reach slightly higher peak efficiency at 435 Wp and still carry a 25-year performance warranty.
Pair your panels with a battery and EV charger
SOLARWATT solar panels work on their own, or as part of the SOLARWATT Home system with a matching inverter, battery, EV charger and energy manager.
We also install Hinen all-in-one storage and the myenergi eco system alongside SOLARWATT panels.
Explore SOLARWATT Home
SOLARWATT panels for every kind of roof
SOLARWATT solar panel FAQs
What is the difference between glass-glass and glass-foil solar panels?
Glass-glass panels (Vision) seal the cells between two layers of tempered glass. Glass-foil panels (Classic) use glass on the front and a multi-layer film on the back. Glass-glass is heavier but carries a longer warranty: 30 years versus 20 for the product.
Do SOLARWATT solar panels work in Northern Ireland's weather?
Yes. Panels generate from daylight, not only direct sun. SOLARWATT's datasheets show both ranges lose only around 4% relative efficiency when light drops from full sun to overcast levels.
Are SOLARWATT panels suitable for farms and coastal homes?
Both ranges are rated salt-mist and ammonia resistant. See our agricultural solar page.
Is there VAT on solar panels for homes?
Home installations in Northern Ireland currently have 0% VAT until 31 March 2027. Business and farm-building installations follow different rules.
Your future. Our energy.
Every SOLARWATT system we install is designed after a survey of your roof and how you use electricity.
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