Strong in heat, heavy for its output
The Kensol PERUN GLASS DUO panel series is an advanced solution based on a glass-glass construction, which guarantees extreme durability and resistance to degradation caused by atmospheric factors. Thanks to the use of N-Type TOPCon cell technology, these modules offer higher efficiency and significantly better performance in low-light conditions compared to standard solutions. A key advantage of the series is its bifaciality, allowing for the generation of additional energy from reflected radiation, which is particularly effective on light-colored surfaces or ground-mounted installations. This solves the problem of rapid power loss over the years, ensuring a stable energy yield for decades. PERUN GLASS DUO also stands out with the highest class of resistance to fire and mechanical loads, making it an ideal choice for demanding commercial systems and modern single-family homes. Unlike traditional modules with a protective backsheet, the double glass construction completely eliminates the risk of micro-cracks and moisture penetration into the laminate. This product is dedicated to investors looking for premium technology that combines innovation with a maximum service life, ensuring safety and a reliable return on investment in the Polish climate.
Ranking
Signals from the data
Residential and commercial.
Weight-limited structures.
Top 11% of the 335-535 W band, against a median of -0.300.
Bottom 22% of the 335-535 W band, against a median of 52.8.
The 21.52-23% efficiency range puts the PERUN GLASS DUO series on par with leading TOPCon products such as Phono Solar Draco (23.02%) and SunKean SKT440-460 (23.02%), and clearly ahead of Axitec AXIbiperfect GR WB (22.54%).
The dual-glass design fully eliminates the risk of microcracks and moisture ingress into the laminate, while bifaciality enables additional energy yield from reflected irradiance - especially effective in ground-mount installations and on high-albedo surfaces.
The manufacturer offers 30 years of warranty on both the product and power output - significantly beyond the standard 12/25-year terms offered by most manufacturers in the segment, reducing long-term investment risk.
N-Type TOPCon technology delivers a lower LID/LeTID degradation coefficient and better performance under low-light conditions and high temperatures compared to older P-type PERC cells.
Kensol is headquartered in Poland and has been active in the market for over a decade, easing logistics, warranty claims, and service compared to imports from Asian suppliers.
Unlike some comparable manufacturers (e.g., Phono Solar), available sources do not confirm Kensol's presence on the BNEF Tier 1 list, which may matter to institutional investors and bank-financed projects when assessing product bankability.
The PERUN GLASS DUO series launched in 2023, so multi-year independent field-test data on real-world power degradation is still limited compared to manufacturers with a longer history in glass-glass TOPCon products.
- Efficiency of 21.8% matches the database median
- At 217.7 W/m² power density, roof space requirements are typical for database panels
- Temperature coefficient of -0.28%/°C matches the database median
- At 24.6 kg, this panel is 1.9 kg lighter than database median (26.5 kg) - easier handling during installation
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
Specifications
Datasheet charts
Measured curves published by Kensol in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 435 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.
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