Viridian Solar, the UK-based roof-integrated solar PV panel manufacturer, has incorporated n-type TOPCon solar cells in its newly launched solar modules. Part of the company’s Clearline fusion range, these modules offer a power output of up to 445 W and up to 23.6% module efficiency.
With the use of TOPCon cells in the PV16-445AG-M10 module, the company has achieved a near 10% increase in the power output from the same roof area compared to PV16-405-M10, its current commercial product. It also offers a power output guarantee, promising an improvement to 95% of rated power at 10 years and 87% at 30 years.
Viridian’s new panel has a maximum power voltage of 33.02 V and a power temperature coefficient of -0.29%/°C. These modules can be installed in less than 45 min/kW and are compatible with its existing M10 roofing kits.
Additionally, the manufacturer has added glass sheets on both sides to enable better protection for the cells from oxidation and mechanical stresses and strains, thus extending the panel’s lifetime. The use of incombustible glass on the rear face of the panel, replacing polymer backsheet, also lends enhanced protection from fire risks.
Viridian claims that installing these panels using its in-house all-metal Clearline fusion mounting system further enhances fire safety standards.
“The new glass-glass construction of the 445AG panel puts the cells right on the centreline of the laminate thickness at a position called the Neutral Axis where the cells experience no stress when the laminate is flexed, for example by the loads from wind or snow,” explained Viridian Solar CTO KT Tan.
Viridian’s 445AG product has secured fire resistance classification (BRoof) for both Test 1 (Germany and Benelux) and Test 4 (for the UK) and lists both MCS005 and MCS012 certificates, according to the company.
The company plans to commercially offer the product for self-build, social housing re-roofing and new build developments from June 1, 2025.
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