--- title: "Heckert Solar ZEUS 3.0+ 108 485WP FULL BLACK 485W Solar Panel - Specs & Review | ComparePV" description: "Heckert Solar ZEUS 3.0+ 108 485WP FULL BLACK 485W solar panel. Specs: 24.30% efficiency, Monocrystalline cells." source: "https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp-full-black" updated: 2026-09-11 --- # Heckert Solar ZEUS 3.0+ 108 485WP FULL BLACK Space saver, no clear weak spot 156 panels in the segment Back Contact 450-500 W ## Identity - **Manufacturer:** Heckert Solar - **Model:** ZEUS 3.0+ 108 485WP FULL BLACK - **Series:** ZEUS 3.0+ - **Rated power:** 485 W - **Cell technology:** Back Contact - **Bifacial:** yes ## How it compares Compared against segment Back Contact 450-500 W (156 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 485 W | 475 W | Strong - top 21% | | | Module efficiency | 24.30% | 23.50% | Strong - top 7% | 131 | | Power density | 242.7 | 235.2 | Strong - top 6% | 140 | | Temperature coefficient | -0.260 | -0.260 | Typical | 511 | | Weight (kg) | 24.2 kg | 23.5 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 24.30% | 23.50% | Strong - top 7% | 131 | | Power density | 242.7 | 235.2 | Strong - top 6% | 140 | | Temperature coefficient | -0.260 | -0.260 | Typical | 511 | | Weight per kWp | 49.9 | 48.0 | Typical | 3,275 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **242.7 watts per square metre** - Top 6% of the Back Contact 450-500 W segment, against a median of 235.2. Ranked 140th in the whole database. - **24.30% module efficiency** - Top 7% of the Back Contact 450-500 W segment, against a median of 23.50%. Ranked 131st in the whole database. - **Best for:** Residential, commercial, BIPV and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 485 W - **Efficiency:** 24.30 % - **Voltage at Pmax (Vmp):** 34.60 V - **Current at Pmax (Imp):** 14.02 A - **Open-circuit voltage (Voc):** 41.00 V - **Short-circuit current (Isc):** 14.84 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.260 %/degC - **Temperature coefficient of Voc:** -0.220 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** Back Contact - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.2 kg - **Area:** 2.00 m2 - **Power density:** 242.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 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:** 412 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 131 of 14005 | | Power density | 140 of 14005 | | Temperature coefficient | 511 of 14005 | | Weight | 3275 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Efficiency up to 24.3%, top of the segment** - Efficiency of 24-24.3% matches the best peer comparable (Gokin GK-5-54HG/GK-5-54HGb, 24.3%) and exceeds ZNShine ZXM7-UHLD120 (22.47%) by roughly 1.8pp at the same 485 Wp power class, meaning notably less roof area needed for the same output. - **Back Contact (ABC) technology, no front busbars** - All electrical contacts are moved to the rear side of the N-type cell, freeing the front surface from metallization grids and interconnect ribbons — this increases active cell area and improves partial-shading and high-temperature performance compared to conventional P-type PERC cells. - **30-year product and power warranty** - Heckert Solar offers a 30-year warranty on both product and power, a longer and more symmetric term than the market-typical 12-15 years on product and 25 years on power, meaningfully lowering long-term investor risk. - **Bifacial glass-glass build with high bifaciality** - The glass-glass version (2x2 mm) achieves bifaciality up to 43.6%, recovering additional energy reflected from the ground and boosting total system yield, especially on bright or highly reflective mounting surfaces. - **German manufacturer with a 30-year track record** - Heckert Solar has operated since 1992 and is headquartered in Germany, which combined with TÜV certification and a 30-year warranty establishes credibility as a Tier-1 supplier for residential and commercial installations. ## Cons - **Lack of long-term field data** - The Zeus 3.0+ series launched in 2026, so despite the 30-year warranty there is no independent, multi-year field degradation data for ABC cells yet, unlike mature PERC/TOPCon technologies that have years of track record. - **Higher weight of glass-glass construction** - The bifacial glass-glass variant is noticeably heavier than standard glass-backsheet modules, which for retrofit installations on older roof structures may require additional load-bearing verification before installation. ## About this series The Zeus 3.0+ Full Black is a photovoltaic module built on **Back-Contact (ABC)** technology, where all electrical contacts are moved to the rear side of the cell. As a result, the front surface stays free of metallization grids and interconnect ribbons, delivering a uniform, deep black appearance with no visible streaks or busbars - an excellent fit for installations where roof aesthetics matter as much as performance. The series is based on N-type cells, which provide lower long-term degradation and better high-temperature stability than conventional P-type designs. The **glass-glass** construction with a 30 mm aluminum frame and **bifacial** technology allows the module to capture additional energy reflected from the ground, boosting the overall yield of the installation. The Zeus 3.0+ handles partial shading well thanks to an architecture that limits the impact of hot spots, making it a solid choice for roofs with irregular exposure. It's designed for residential and commercial investors who expect a modern, minimalist look, high mechanical durability, and a **long-term warranty** backing up low power degradation over years of operation. ## Notable figures - At 24.3% efficiency, this panel is 0.8pp above typical \*\*Back Contact 450-500W\*\* modules (median: 23.5%) - 242.7 W/m² power density - 7.5 W/m² more than \*\*Back Contact 450-500W\*\* median (235.2 W/m²), more power per roof area - Temperature coefficient of -0.26%/°C matches the \*\*Back Contact 450-500W\*\* median - Bifaciality factor of 42% can add 2-6% extra yield with reflective mounting surface - In the top 1% for efficiency among all Back Contact panels ## Questions ### What is Back-Contact (ABC) technology in Heckert Solar ZEUS 3.0+ panels and how does it differ from standard modules? In Back-Contact technology, all electrical contacts of the cell are moved to its rear side, so the front of the panel is free of visible busbars and connecting ribbons. In practice this results in a uniform, deep black surface without metallization stripes and slightly higher efficiency, since the entire front side of the cell acts as active light-absorbing area, unshaded by conductive paths. ### What is the maximum power and efficiency of the ZEUS 3.0+ Full Black module? The panel reaches a maximum power of up to 485 Wp with module efficiency of approximately 24.3%, one of the highest results among commercially available panels. High efficiency allows more energy to be generated from a smaller roof area, which matters when installation space is limited. ### Are ZEUS 3.0+ panels bifacial, and is it worth choosing this feature? Yes, the ZEUS 3.0+ series uses a glass-glass construction with bifacial technology, allowing additional energy to be recovered from light reflected off the ground beneath the panel. This makes the most sense on light-colored roofing, gravel, or ground-mounted structures with adequate clearance, while on a standard dark roof tile installation the gain will be smaller, though still positive. ### What warranty comes with Heckert Solar ZEUS 3.0+ panels? The manufacturer provides a 30-year product warranty and a 30-year power performance warranty, placing it among the industry leaders. The N-type cells used in this series have lower annual degradation than conventional P-type cells, allowing the panel to maintain a high percentage of nominal power even after decades of operation. ### Do ZEUS 3.0+ panels handle shading well, for example from a chimney or antenna? The Back-Contact architecture limits the impact of hot spots, so partial shading of individual cells has less effect on the overall panel's output compared to conventional modules. This is a significant advantage for roofs with irregular exposure, chimneys, dormers, or receiving-equipment elements casting shadows. ### Are ZEUS 3.0+ modules more durable than standard solar panels? The glass-glass construction with a 30 mm aluminum frame and double-sided 2 mm glass layers provides greater mechanical rigidity and better resistance to snow and wind loads compared to modules with a rear polymer backsheet. The panels also operate in a system voltage rated up to 1500 V, making them suitable for both residential and larger commercial installations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/202602_Datenblatt_Zeus30_FullBlack_480-485Wp_EN_web-a2a92d500bf6.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +25 W, cooler, +0.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +10 W, lighter, +0.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +20 W, cooler, +0.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Lighter | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +15 W, cooler | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +15 W, lighter | | [Heckert Solar ZEUS 1.1 440WP Full Black](https://comparepv.com/panel/heckert-solar-zeus-1-1-440wp-full-black) | 440 W | -45 W, lighter, -2.3 pp | | [Heckert Solar ZEUS 1.1 445W Black Frame](https://comparepv.com/panel/heckert-solar-zeus-1-1-445w-black-frame) | 445 W | -40 W, lighter, -2.0 pp | --- Source: https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp-full-black 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.