Efficiency leader, weak in heat
The Axitec AXIbiperfect GXXL TS series represents the latest standard in bifacial technology, combining glass-glass durability with high N-type cell efficiency. Thanks to the use of innovative TOPCon technology, these modules minimize energy losses and offer exceptional performance even in low light conditions. A key advantage of the series is its construction, which eliminates the risk of degradation caused by moisture or micro-cracks, resulting in a significantly longer system lifespan. The use of bifacial gain allows for generating additional energy from radiation reflected from the ground, making them an ideal choice for ground-mounted installations and commercial carports. These panels solve the problem of rapid power decline over time, offering investors financial stability and the highest degree of investment security. Compared to standard monofacial modules, AXIbiperfect GXXL TS stands out with its increased mechanical resistance and an excellent temperature coefficient, which guarantees high production even during summer heat. This solution is dedicated to professionals looking for premium-class components that combine aesthetics with uncompromising durability in harsh environmental conditions.
Ranking
Signals from the data
Commercial and utility-scale.
Hot climates.
Top 15% of the TOPCon 550-600 W segment, against a median of 22.44%.
Top 17% of the TOPCon 550-600 W segment, against a median of 224.4.
Bottom 10% of the TOPCon 550-600 W segment, against a median of -0.290.
Pmax is rated at -0.31%/°C, outperforming typical PERC modules (-0.35 to -0.40%/°C). At a summer cell operating temperature of 65°C, this translates to a real-world energy yield gain of 3–4% over older technology on hot days.
The manufacturer guarantees ≥97% of rated power after Year 1, degradation of ≤0.4%/year in Years 2–30, and a minimum of 87.4% of nominal power after 30 years. The industry standard (Trina, JA Solar, LONGi) is typically 25 years with an 84.8% end-of-warranty floor — Axitec offers a longer horizon and a higher performance threshold.
The backsheet-free laminate (2 mm glass on both sides) blocks moisture ingress and eliminates the PID degradation mechanism. N-type TOPCon cells are inherently free of the Light Induced Degradation (LID) effect characteristic of PERC, directly resulting in more stable energy production during the first years of operation.
At a ground albedo of 0.4 (light gravel, concrete, or snow), the module generates up to 30% additional energy from the rear cell surface — a figure confirmed by the manufacturer's datasheet. For ground-mounted systems and carport installations with light-colored surfaces, this yields a materially better LCOE compared to monofacial modules of the same STC rating.
The peak efficiency of 22.84% matches the closest peer, DAH DHN-72X16/DG(BB) (22.84%), and exceeds both Horay Solar HS 182-144 (22.80%) and Talesun TM7G72M (22.80%). The series is fully competitive with its nearest rivals on technical merit, while being backed by a credible, 25-year-old German-headquartered brand.
Based on manufacturer data and independent analysis, Axitec does not appear on the BloombergNEF Tier-1 Bankable Manufacturers list as of Q1 2026. For large commercial installations financed through non-recourse debt or leasing structures, lenders and investment funds may require additional payment insurance or exclude the manufacturer from their approved component lists, increasing the overall cost of project financing.
- At 22.8% efficiency, this panel is on par with typical TOPCon 550-600W modules
- Power density of 228.4 W/m² packs 4.0 W/m² more into the same footprint vs TOPCon 550-600W median (224.4 W/m²)
- Temperature coefficient of -0.31%/°C is 0.02pp worse than TOPCon 550-600W median (-0.29%/°C) - higher losses in summer heat
- Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface
- Ranked #2617 out of 14005 panels for efficiency in the database
Specifications
Datasheet charts
Measured curves published by Axitec in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 590 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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