--- title: "Heckert Solar ZEUS 2.2-715 715W Solar Panel - Specs & Review | ComparePV" description: "Heckert Solar ZEUS 2.2-715 715W solar panel. Specs: 23.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/heckert-solar-zeus-2-2-715-1" updated: 2026-09-11 --- # Heckert Solar ZEUS 2.2-715 Strong in heat, no clear weak spot 420 panels in the segment TOPCon 700-750 W ## Identity - **Manufacturer:** Heckert Solar - **Model:** ZEUS 2.2-715 - **Series:** ZEUS 2.2 - **Rated power:** 715 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 700-750 W (420 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 715 W | 715 W | Typical | | | Module efficiency | 23.00% | 23.00% | Typical | 1,919 | | Power density | 230.2 | 230.2 | Typical | 2,018 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 11% | 1,309 | | Weight (kg) | 37.9 kg | 38.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.00% | 23.00% | Typical | 1,919 | | Power density | 230.2 | 230.2 | Typical | 2,018 | | Temperature coefficient | -0.280 | -0.290 | Strong - top 11% | 1,309 | | Weight per kWp | 53.0 | 52.9 | Typical | 6,744 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.280 %/°C temperature coefficient** - Top 11% of the TOPCon 700-750 W segment, against a median of -0.290. - **Best for:** Commercial and utility-scale. ## Specification ### Electrical - **Rated power (Pmax):** 715 W - **Efficiency:** 23.00 % - **Voltage at Pmax (Vmp):** 40.86 V - **Current at Pmax (Imp):** 17.50 A - **Open-circuit voltage (Voc):** 49.11 V - **Short-circuit current (Isc):** 18.50 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.280 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 33 mm - **Weight:** 37.9 kg - **Area:** 3.11 m2 - **Power density:** 230.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 607 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1919 of 14005 | | Power density | 2018 of 14005 | | Temperature coefficient | 1309 of 14005 | | Weight | 6744 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon cells with half-cut design** - 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. - **30-year linear power warranty** - 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. - **Glass-glass construction with dual pane** - 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. - **High bifaciality boosting energy yield** - 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. - **Made in Germany, manufacturer since 1992** - 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. ## Cons - **Not on the BNEF Tier 1 list** - 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. - **Standard 12-year product warranty** - 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. ## About this series 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. ## Notable figures - Efficiency of 23.0% matches the \*\*TOPCon 700-750W\*\* median - At 230.2 W/m² power density, roof space requirements are typical for \*\*TOPCon 700-750W\*\* panels - At -0.28%/°C, hot weather performance is typical for \*\*TOPCon 700-750W\*\* panels - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - Ranked #1919 out of 14005 panels for efficiency in the database ## Questions ### How much power does the Heckert Solar ZEUS 2.2 panel generate? Modules in the ZEUS 2.2 series reach a maximum power output of up to 715 Wp, placing them among high-performance commercial panels with a large format. A high wattage per module reduces the number of panels needed to reach a target system size, cutting costs on racking, cabling, and installation labor. ### How does the bifacial design of ZEUS 2.2 differ from standard monofacial panels? Bifacial ZEUS 2.2 modules generate power from both sides, capturing direct sunlight as well as light reflected off the ground. On light-colored roofs, white gravel, or snow-covered surfaces, this can noticeably boost energy yield compared to classic monofacial panels, improving ROI on large ground-mount and industrial installations. ### What is TOPCon technology, and why is it used in ZEUS 2.2? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology offering higher efficiency and lower power degradation than older P-type PERC cells. In ZEUS 2.2, TOPCon cells are arranged in a half-cut configuration, reducing losses from partial shading and improving power output stability over the panel's lifetime. ### What warranty comes with ZEUS 2.2 panels, and what about power output? Heckert Solar provides a 12-year product warranty along with a 30-year linear power warranty for the ZEUS 2.2 series. This coverage is typical of modern TOPCon panels and gives investors confidence in low power degradation over the long service life of a commercial installation or solar farm. ### Are ZEUS 2.2 panels suitable for ground-mount installations and solar farms? Yes, the glass-glass construction and bifacial design of ZEUS 2.2 were specifically engineered for large ground-mount installations, where modules can capture light reflected off the ground. High resistance to moisture, microcracks, and harsh weather makes them a solid choice for solar farms and large-scale projects run by developers. ### Are Heckert Solar ZEUS 2.2 panels manufactured in Europe? Yes, ZEUS 2.2 modules are manufactured in Germany, ensuring compliance with strict European quality standards and on-site production control. For many investors and installation companies, this is a key factor when choosing a supplier for commercial projects where supply chain predictability and build quality matter. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Datenblatt_Zeus-22_710-715Wp_web-ac20ae22783b.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | -35 W, lighter, +2.2 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | -40 W, lighter, +2.0 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, lighter, +2.0 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Cooler, lighter, +1.9 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | -45 W, lighter, +1.8 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | -45 W, lighter, +1.8 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | -45 W, lighter, +1.8 pp | | [Heckert Solar ZEUS 2.2 710](https://comparepv.com/panel/heckert-solar-zeus-2-2-710) | 710 W | Very close match | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +90 W, cooler, +2.1 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +85 W, cooler, +1.9 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +80 W, cooler, +1.8 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +75 W, cooler, +1.6 pp | | [Trina Solar TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 W | +45 W, cooler, +1.5 pp | | [AIKO AIKO-A785-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a785-grh78dw) | 785 W | +70 W, cooler, +1.4 pp | | [Gokin GK-4-78HGBD-780M](https://comparepv.com/panel/gokin-gk-4-78hgbd-780m) | 780 W | +65 W, cooler, +1.3 pp | | [AIKO AIKO-A780-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a780-grh78dw) | 780 W | +65 W, cooler, +1.3 pp | --- Source: https://comparepv.com/panel/heckert-solar-zeus-2-2-715-1 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.