--- title: "Heckert Solar NeMo 4.1 80M 385 385W Solar Panel - Specs & Review | ComparePV" description: "Heckert Solar NeMo 4.1 80M 385 385W solar panel. Specs: 19.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/heckert-solar-nemo-4-1-80m-385" updated: 2026-09-11 --- # Heckert Solar NeMo 4.1 80M 385 Middle of its segment, needs the roof space 6,059 panels in the 285-485 W band, all technologies ## Identity - **Manufacturer:** Heckert Solar - **Model:** NeMo 4.1 80M 385 - **Series:** NeMo 4.1 80M - **Rated power:** 385 W - **Cell technology:** Monocrystalline ## How it compares Compared against 285-485 W band, all technologies (6059 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 385 W | 430 W | Weak - bottom 19% | | | Module efficiency | 19.80% | 21.25% | Weak - bottom 18% | 12,416 | | Power density | 197.7 | 212.5 | Weak - bottom 18% | 12,434 | | Temperature coefficient | -0.343 | -0.300 | Typical | 10,348 | | Weight (kg) | 21.0 kg | 22.0 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 20% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.80% | 21.25% | Weak - bottom 18% | 12,416 | | Power density | 197.7 | 212.5 | Weak - bottom 18% | 12,434 | | Temperature coefficient | -0.343 | -0.300 | Typical | 10,348 | | Weight per kWp | 54.5 | 53.3 | Typical | 8,872 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 20% | 9,798 | ### Watch out for - **197.7 watts per square metre** - Bottom 18% of the 285-485 W band, against a median of 212.5. - **19.80% module efficiency** - Bottom 18% of the 285-485 W band, against a median of 21.25%. - **25 year performance warranty** - Bottom 20% of the 285-485 W band, against a median of 30 yrs. - **Best for:** Residential and commercial. - **Not ideal for:** Roofs where every square metre has to count, tight roof space and owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 385 W - **Efficiency:** 19.80 % - **Voltage at Pmax (Vmp):** 23.18 V - **Current at Pmax (Imp):** 16.72 A - **Open-circuit voltage (Voc):** 27.60 V - **Short-circuit current (Isc):** 17.55 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.343 %/degC - **Temperature coefficient of Voc:** -0.263 %/degC - **Temperature coefficient of Isc:** 0.033 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 80 ### Physical - **Length:** 1736 mm - **Width:** 1122 mm - **Thickness:** 35 mm - **Weight:** 21.0 kg - **Area:** 1.95 m2 - **Power density:** 197.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 80.0 % - **Output after 30 years:** 293 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12416 of 14005 | | Power density | 12434 of 14005 | | Temperature coefficient | 10348 of 14005 | | Weight | 8872 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **High efficiency up to 20.5%** - Efficiency of 19.8-20.5% matches the best peer comparable (Heliene 108HC M10 at 20.5%) and clearly outperforms other rivals such as MWG Mono (19.32%) and DMEGC GH400M10T (15.48%), translating into higher energy yield per roof area. - **Manufactured exclusively in Germany** - Modules are produced at the Chemnitz and Langenwetzendorf facilities, powered by the manufacturer's own PV installations, reducing the production carbon footprint and ensuring full supply chain traceability - a strong asset for public tenders and ESG-driven projects. - **Salt mist and ammonia corrosion resistance** - IEC 61701 (salt mist) certification plus ammonia resistance make the series a natural fit for coastal installations and agricultural sites near livestock farms, where standard modules degrade faster. - **Half-cut cells, 12 busbars and microCELL TLS technology** - The 80-cell G12 half-cut layout with 12 busbars combined with proprietary Thermal Laser Separation technology reduces resistive losses and improves resistance to microcracks and partial shading, meaningfully extending stable module performance. - **25-year power warranty** - Tier-1 industry-standard coverage (25-year power warranty, 15-year product warranty) gives investors return predictability on par with other manufacturers in the peer comparables. ## Cons - **Production discontinued in 2025** - The NeMo 4.1 80M series (released 2022, discontinued 2025) has been superseded by the NeMo 4.2 80M, rated up to 405 Wp. This means limited service availability, spare parts, and matching modules for future expansion of existing installations. - **Mono-PERC technology instead of TOPCon** - The series relies on older P-type PERC cells rather than the newer N-type TOPCon cells Heckert Solar already offers in its Apollon and Zeus lines. PERC is more prone to LID degradation and lower high-temperature efficiency than N-type technologies available from some competitors. - **No bifacial variant** - The module is monofacial, while the premium segment increasingly offers bifacial variants that can boost energy yield by several to over ten percent with suitable mounting (e.g., flat roofs with light-colored surfaces or ground-mount installations). ## About this series The NeMo 4.1 80M is a German-made monocrystalline module series built for installations that need to perform reliably for decades under demanding conditions. At its core are **80 G12 half-cut cells** arranged in a **12-busbar** layout, which reduces resistive losses and improves the module's resilience against partial shading and microcracks. A key differentiator is the proprietary **microCELL TLS (Thermal Laser Separation) technology**, which preserves the full mechanical strength of the cells and results in more stable long-term power output. The module features **anti-reflective coated ESG glass**, boosting energy yield even under unfavorable light incidence angles. The series is certified for resistance to **salt mist and ammonia corrosion**, making it a natural choice for coastal installations and agricultural sites, such as those near livestock farms. Production takes place exclusively in Germany, at facilities in Chemnitz and Langenwetzendorf, powered by electricity from the company's own solar plants. The manufacturer backs the modules with a **15-year product warranty and a 25-year performance warranty**, giving investors and installers long-term security and a predictable return on investment. ## Notable figures - Efficiency of 19.8% is 2.0pp below the \*\*database\*\* median (21.8%) - Power density of 197.7 W/m² is 20.4 W/m² below \*\*database\*\* median (218.1 W/m²) - needs more roof space - Temperature coefficient of -0.34%/°C is 0.04pp worse than \*\*database\*\* median (-0.30%/°C) - higher losses in summer heat - At 21.0 kg, this panel is 5.5 kg lighter than \*\*database\*\* median (26.5 kg) - easier handling during installation - Ranked #12416 out of 14005 panels for efficiency in the database ## Questions ### Is the Heckert Solar NeMo 4.1 80M series still available for purchase? No, production of the NeMo 4.1 80M series has ended and the module has been discontinued from the manufacturer's current lineup. Units may still be found through distributors while stock lasts, but once inventory is depleted, Heckert Solar offers newer series with comparable or higher specifications as replacements. ### What warranty comes with the Heckert Solar NeMo 4.1 80M panels? The manufacturer backs the NeMo 4.1 80M with a 15-year product warranty and a 25-year linear power output warranty. This means that even after a quarter century, the panel should still retain the manufacturer-guaranteed percentage of its original power output, giving investors predictable long-term returns on their PV installation. ### What is microCELL TLS technology in the NeMo 4.1 80M panels and does it actually matter? microCELL TLS (Thermal Laser Separation) is Heckert Solar's proprietary process that laser-cuts half-cut cells thermally instead of mechanically breaking them. This preserves the full structural strength of the cells, reducing the risk of microcracks during transport and operation, which results in more stable energy output over the module's entire lifespan. ### Are the NeMo 4.1 80M panels suitable for coastal installations or farms near livestock? Yes, the NeMo 4.1 80M series is certified for resistance to both salt mist and ammonia corrosion, making it a reliable choice for coastal sites exposed to salty air as well as agricultural installations near livestock farms, where ammonia fumes in the atmosphere can degrade standard module coatings. ### What is the maximum power output of the NeMo 4.1 80M and what cell technology does it use? The module reaches a maximum output of up to 400 Wp thanks to 80 monocrystalline G12 half-cut cells connected in a 12-busbar layout. This configuration reduces resistive losses, improves partial-shading tolerance, and increases overall panel efficiency compared to older full-cell designs. ### Are the NeMo 4.1 80M panels manufactured in Germany, and does that affect quality? Yes, NeMo 4.1 80M modules are produced exclusively at Heckert Solar's German facilities in Chemnitz and Langenwetzendorf, partly powered by the company's own solar installations. Manufacturing in Germany ensures strict quality control aligned with EU standards, a shorter supply chain, and more consistent batch quality, which simplifies warranty handling. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/DB-NeMo-41-80-M_385-400-95df4259771a.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +3.2 pp, +5 yr warranty | | [Luxor Solar LX-435M/182-108+ GG](https://comparepv.com/panel/luxor-solar-lx-435m-182-108-gg-1) | 435 W | +50 W, cooler, +3.0 pp | | [Jetion JT435SYk(B)](https://comparepv.com/panel/jetion-jt435syk-b) | 435 W | +50 W, cooler, +2.9 pp | | [Maxeon SPR-MAX3-430-R](https://comparepv.com/panel/maxeon-spr-max3-430-r) | 430 W | Cooler, +2.9 pp, +15 yr warranty | | [Luxor Solar LX-435M/182-108+](https://comparepv.com/panel/luxor-solar-lx-435m-182-108) | 435 W | +50 W, cooler, +2.8 pp | | [Heckert Solar NeMo® 4.2 80 M BLACK 390](https://comparepv.com/panel/heckert-solar-nemo-4-2-80-m-black-390) | 390 W | +0.3 pp | | [Heckert Solar NeMo® 4.2 80 M 390](https://comparepv.com/panel/heckert-solar-nemo-4-2-80-m-390) | 392 W | +0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +125 W, cooler, +5.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +110 W, cooler, +5.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +120 W, cooler, +4.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +105 W, cooler, +4.7 pp | --- Source: https://comparepv.com/panel/heckert-solar-nemo-4-1-80m-385 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.