At Blue Electrics, we install JA Solar panels across South Wales as our panel of choice for domestic and light-commercial systems. Founded in 2005, JA Solar is one of the world's largest and most respected photovoltaic manufacturers, shipping more than 180 GW of panels globally and consistently ranking in Bloomberg's Tier 1 list. For UK homes facing variable weather and moderate light conditions, JA Solar's track record matters.
Why we choose JA Solar
1. Tier 1 manufacturer with proven scale
JA Solar is Bloomberg Tier 1 — a classification reserved for the most bankable, financially stable solar manufacturers in the world. That bankability matters when you're buying a 25-year product: you want confidence that the warranty will still be honoured two decades from now. JA Solar has been profitable, publicly listed, and shipping to more than 135 countries since 2005.
2. Excellent low-light performance
Welsh skies are famously overcast. JA Solar's n-type TOPCon cell technology and optimised bifacial modules deliver strong performance in diffuse light — the kind of cloudy, bright-but-not-sunny conditions that dominate a UK winter. Real-world measured output in our South Wales installs regularly exceeds our STC-based design estimates for the November-to-February months.
3. Industry-leading warranties
Every JA Solar panel we install comes with:
- 25-year product warranty covering defects in materials and workmanship
- 30-year linear power warranty — guaranteeing 87.4% of initial output at year 30
- PID-free construction, salt-mist tested, and certified for UK Class 1 module installations
4. Sleek, aesthetic design
JA Solar's full-black modules (black frame, black backsheet) are a popular choice for conservation-area properties and customers who want the panels to visually recede into the roof. The DeepBlue 4.0 range is our most specified product — high efficiency, strong aesthetics, and excellent price-to-performance.
5. Made for UK grid compliance
All JA Solar panels we install are fully G98/G99 compliant and work seamlessly with the hybrid inverters we recommend — SigEnergy, Sunsynk, and Solis. System commissioning, DNO notification, and MCS certification are all handled in-house.
Flagship JA Solar products we install
The JA Solar range is deep. These are the three we specify most often on South Wales roofs, each chosen for a specific kind of install.
DeepBlue 4.0 Pro
420–440 W · TOPCon n-type · 25-yr product / 30-yr performance
Our default residential module. Next-generation rectangular wafers, Bycium+ passivation, and full-black aesthetics make it the sweet spot for power, price, and looks on a typical UK pitched roof.
DeepBlue 3.0 Pro
380–410 W · PERC · workhorse module
The dependable price-performance pick. Proven in thousands of UK installs, still carrying strong warranty terms. Ideal where budget is tight or where matching existing PERC arrays on retrofit jobs.
Bifacial Double-Glass
540–580 W · bifacial dual-glass · ground-mount / flat-roof
For agricultural barns, warehouses, and flat commercial roofs where rear-side reflection adds 5–15% extra yield. Glass-glass construction also brings a longer service life than polymer-backed modules.
Ready to fit JA Solar to your roof?
Every installation starts with a technical site survey: we measure your roof, check orientation, assess shading, calculate your typical consumption, and design a system sized precisely for your home. No generic templates, no oversold systems.
Or call us on 0333 444 5553 for a chat about what's right for your property.