JA Solar DeepBlue 4.0
Next-generation n-Type TOPCon solar panels with up to 22.5% efficiency
The JA Solar DeepBlue 4.0 uses n-Type TOPCon technology — a step beyond conventional PERC panels — to deliver efficiencies of up to 22.5% in a standard-size panel. With an industry-leading degradation rate of just 0.3% per year and 30-year warranties on both product and performance, these are panels built to last. We fit JA Solar panels across Cornwall, pairing them with battery storage and EV chargers for a fully integrated energy system.
JA Solar DeepBlue 4.0 — supplied and installed by CCS Heating & Renewables
Technical Specifications
Key Benefits
Up to 22.5% Efficiency
Among the most efficient panels available at this price point — generating more electricity from the same roof space.
n-Type TOPCon Technology
Next-generation cell technology with lower degradation and better low-light performance than standard PERC panels.
30-Year Warranties
Both the product and performance warranties run for 30 years — exceptional confidence in longevity.
0.3% Annual Degradation
Loses only 0.3% of output per year — after 25 years your panels still produce over 87% of their original power.
0% VAT
Residential solar installations attract zero VAT until at least 2027, saving you 20% on the total installation cost.
Bifacial Capability
Generates additional electricity from reflected light on the rear of the panel, increasing total yield.
Ideal For
- South, southeast, or southwest facing roofs
- Homeowners wanting maximum output from limited roof space
- Properties pairing solar with battery storage or an EV charger
- Holiday lets and second homes looking to reduce running costs
- Businesses and agricultural buildings with large roof areas
Installation Service
MCS certified solar PV installation for homes and businesses. Generate your own electricity, cut bills by up to 70%, and...
View Solar Panels serviceBook a Free Survey
Our engineers will assess your property and confirm whether this product is the right fit — no cost, no commitment.
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