Strong in heat, no clear weak spot
The ZEUS 2.2 series from Heckert Solar consists of bifacial glass-glass modules, engineered for large commercial, industrial, and ground-mount solar farm installations. At the core of these panels are N-type TOPCon cells arranged in a half-cut configuration, delivering more stable power output and reduced losses under partial shading. Thanks to the dual-glass construction, the modules offer low power degradation throughout their service life and strong resistance to harsh weather, moisture, and microcracks, making them a dependable choice for investors expecting decades of reliable performance. The bifacial design captures reflected irradiance from the ground, boosting energy yield especially on highly reflective roofs or ground-mounted systems installed over light-colored surfaces or snow. The panels are manufactured in Germany, which for many customers guarantees production quality and compliance with strict European standards. ZEUS 2.2 is well suited wherever maximizing return on investment within limited installation space matters, helping to lower the effective levelized cost of energy (LCOE) compared to conventional monofacial modules. It's a fitting solution for installation companies and utility-scale project developers who prioritize proven, European-made quality.
Ranking
Signals from the data
Commercial and utility-scale.
Top 11% of the TOPCon 700-750 W segment, against a median of -0.290.
N-type TOPCon half-cut cells deliver lower LID/LeTID degradation and reduced power loss under partial shading compared to older PERC cells, translating into higher real-world annual energy yield.
Heckert Solar offers a 30-year linear power warranty, five years longer than the 25-year standard still common across this segment for bifacial TOPCon modules of the same class.
A double glass pane replacing the traditional backsheet improves resistance to moisture, microcracks, and harsh weather conditions, supporting low power degradation over the full 30-year service life.
The module's bifaciality factor reaches around 80% rear-side power, delivering a real production boost on bright ground cover, highly reflective roofs, and ground-mount installations without increasing the footprint.
ZEUS 2.2 modules are manufactured in Germany by a company operating since 1992, ensuring compliance with strict European standards and a longer quality track record than many newer Asian competitors in the peer comparables set.
Unlike the large manufacturers in the peer comparables (DAS Solar, New East Solar), Heckert Solar, as a smaller European manufacturer, does not appear on the Q1 2026 BNEF Tier 1 list, which can limit bank financing eligibility for large-scale projects.
The product warranty is 12 years, matching most competitors but noticeably shorter than the 15-25 years some Tier-1 manufacturers offer on materials and workmanship, despite the power warranty reaching 30 years.
- Efficiency of 22.9% matches the TOPCon 700-750W median
- Power density of 228.6 W/m² matches the TOPCon 700-750W median
- At -0.28%/°C, hot weather performance is typical for TOPCon 700-750W panels
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
- #2359 for efficiency, #1309 for temperature performance out of 14005 panels
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 710 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 1390 panels of the same or similar size to this one, within ±10 mm. See them here Found 1400 panels of the same or similar size to this one, within ±25 mm. See them here Found 1400 panels of the same or similar size to this one, within ±50 mm. See them here Found 1432 panels of the same or similar size to this one, within ±100 mm. See them here