Strong in heat, no clear weak spot
The ZEUS 1.1 Transparent series from Heckert Solar is a module built for installations meant to capture every ray of light reaching the roof or facade. It combines N-Type TOPCon technology with a bifacial glass-glass construction, allowing the panel to absorb irradiance from both the front and rear sides, boosting energy yield without expanding the footprint of the array. The use of 96 half-cut cells reduces resistive losses and improves module performance under partial shading, which matters for unconventional roof geometries or ground-mount installations. The transparent rear layer not only enhances aesthetics - the black frame and uniform look suit design-conscious projects - but also enables efficient capture of light reflected off the underlying surface. The glass-glass build delivers strong resistance to ammonia and salt-mist corrosion as well as hail loads, making it a solid choice for agricultural sites and coastal locations. The manufacturer backs the series with a 30-year warranty covering both the product and power output, translating into a lower LCOE over the system's lifetime. It's a fitting solution for investors seeking durability and maximum output per square meter of roof.
Ranking
Signals from the data
Agrivoltaic, residential and commercial.
Top 4% of the TOPCon 400-450 W segment, against a median of -0.290. Ranked 1,309th in the whole database.
Top 17% of the TOPCon 400-450 W segment, against a median of 22.00%.
N-Type TOPCon technology combined with 96 half-cut cells reduces resistive losses and delivers a -0.28%/°C temperature coefficient, translating into higher energy yield in hot climates compared to older PERC modules.
Dual-sided 2 mm tempered glass on front and rear captures light reflected off the ground, boosting energy yield without increasing the installation footprint, while also improving the module's mechanical durability.
The manufacturer backs the series with a 30-year warranty on both the product and power output — longer than the standard 25 years offered by many Tier-1 manufacturers, which meaningfully lowers LCOE over the system's lifetime.
The panel withstands snow loads up to 8,100 Pa and wind loads up to 2,400 Pa, and the glass-glass construction resists ammonia, salt mist, sand, dust, and PID — making it well suited for agricultural and coastal installations.
Heckert Solar has operated since 1992 and is headquartered in Germany, with local European manufacturing that reduces supply-chain risk compared to some Asian competitors.
Maximum efficiency of 22.5% trails competing modules from SunKean and Sunket New Energy (SKT430~450M10-108D5), which reach 23.04% at the same 450 Wp power rating — a roughly 0.5 pp gap that may matter on roof-space-constrained installations.
- Efficiency of 22.3% matches the TOPCon 400-450W median
- At 222.7 W/m² power density, roof space requirements are typical for TOPCon 400-450W panels
- Temperature coefficient of -0.28%/°C matches the TOPCon 400-450W median
- At 23.7 kg (1.7 kg above TOPCon 400-450W median of 22.0 kg), requires checking roof load capacity
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
Specifications
Datasheet charts
Measured curves published by Heckert Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 445 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.
Found 1395 panels of the same or similar size to this one, within ±10 mm. See them here Found 1425 panels of the same or similar size to this one, within ±25 mm. See them here Found 3614 panels of the same or similar size to this one, within ±50 mm. See them here Found 3962 panels of the same or similar size to this one, within ±100 mm. See them here