--- title: "Heckert Solar APOLLON 1.0 108 M 440 440W Solar Panel - Specs & Review | ComparePV" description: "Heckert Solar APOLLON 1.0 108 M 440 440W solar panel. Specs: 22.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/heckert-solar-apollon-1-0-108-m-440-1" updated: 2026-09-11 --- # Heckert Solar APOLLON 1.0 108 M 440 Efficiency leader, weak in heat 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Heckert Solar - **Model:** APOLLON 1.0 108 M 440 - **Series:** APOLLON 1.0 108 M - **Rated power:** 440 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 440 W | 435 W | Typical | | | Module efficiency | 22.30% | 22.00% | Strong - top 17% | 5,100 | | Power density | 222.7 | 220.2 | Strong - top 21% | 5,297 | | Temperature coefficient | -0.320 | -0.290 | Weak - bottom 7% | 8,312 | | Weight (kg) | 21.3 kg | 22.0 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 7% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.30% | 22.00% | Strong - top 17% | 5,100 | | Power density | 222.7 | 220.2 | Strong - top 21% | 5,297 | | Temperature coefficient | -0.320 | -0.290 | Weak - bottom 7% | 8,312 | | Weight per kWp | 48.4 | 51.4 | Typical | 2,253 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 7% | 9,798 | ### Strengths - **22.30% module efficiency** - Top 17% of the TOPCon 400-450 W segment, against a median of 22.00%. - **222.7 watts per square metre** - Top 21% of the TOPCon 400-450 W segment, against a median of 220.2. ### Watch out for - **-0.320 %/°C temperature coefficient** - Bottom 7% of the TOPCon 400-450 W segment, against a median of -0.290. Ranked 8,312th in the whole database. - **25 year performance warranty** - Bottom 7% of the TOPCon 400-450 W segment, against a median of 30 yrs. Ranked 9,798th in the whole database. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Hot climates and owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 440 W - **Efficiency:** 22.30 % - **Voltage at Pmax (Vmp):** 34.06 V - **Current at Pmax (Imp):** 12.93 A - **Open-circuit voltage (Voc):** 39.78 V - **Short-circuit current (Isc):** 13.63 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.320 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 ### Physical - **Length:** 1742 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 21.3 kg - **Area:** 1.98 m2 - **Power density:** 222.7 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:** 335 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5100 of 14005 | | Power density | 5297 of 14005 | | Temperature coefficient | 8312 of 14005 | | Weight | 2253 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Made in Germany – Fully Auditable Quality** - Heckert Solar is the last active PV module manufacturer with continuous production on German soil (facilities in Chemnitz and Langenwetzendorf, operating since 1992). This translates into short supply chains, full manufacturing process auditability, and compliance with the European country-of-origin requirements of public tenders and subsidy programs. - **Low Temperature Coefficient of -0.25%/°C (TOPCon)** - N-type TOPCon technology delivers a temperature coefficient of -0.25%/°C – a clear improvement over the typical -0.35%/°C of previous-generation PERC modules. At realistic summer module temperatures (60–70°C), this translates to approximately 3–5% higher energy yield compared to PERC-based systems. - **108 Half-Cut M10 Cells + AR Coating** - The half-cut M10 cell format reduces internal currents and resistive losses while improving resilience to partial shading (e.g., from chimneys or dormers). The anti-reflective (AR) coating on the glass increases light absorption at the low angles of incidence characteristic of Polish latitudes (50–54°N), which is particularly relevant outside the summer season. - **Stäubli MC4-EVO 2A Connectors as Standard** - The module ships factory-fitted with Stäubli MC4-EVO 2A connectors, compatible with power optimizers (SolarEdge, Tigo). This eliminates the need for wiring adapters in complex roof installations and improves connection reliability over the system's service life. - **1500 V DC System Voltage** - Support for system voltages up to 1500 V DC enables longer strings and therefore fewer inverters in commercial installations, reducing balance-of-system (BoS) costs and simplifying DC-side wiring. ## Cons - **Efficiency Up to 22.3% – Below Peer Comparable Median** - The maximum efficiency of the series is 22.3%, while direct competitors in the same segment achieve: Luxor Solar ECO LINE N-TYPE TOPCon – 22.86%, Seraphim Nebula – 22.53%, KDM Kingdom Solar – 22.5%. For the same roof area, a gap of 0.5–0.6 percentage points translates to approximately 2–3% lower annual energy yield with no corresponding price benefit for the installer. - **Not Listed on Bloomberg NEF Tier-1** - Heckert Solar does not appear on the BloombergNEF Tier-1 list (which assesses bankability, not technical quality). This may complicate securing third-party bank financing for commercial projects above 50 kW and could affect insurance policy terms with carriers that require Tier-1 status as a qualification criterion. - **25-Year Power Warranty at 80% – Below Market Leaders** - The declared power output after 25 years is 80% of Pnom – a standard value, but lower than the warranties offered by leading Tier-1 manufacturers: Jinko Tiger Neo and Trina Vertex N guarantee 84.8–87.4% after 25 years. A gap of 4–7 percentage points over a long operational horizon may represent real energy production losses estimated at 3–6 MWh per 10 kWp of installed capacity. ## About this series The Heckert Solar APOLLON 1.0 108 M series is designed for high energy yield from a limited roof area, without compromising aesthetics and durability. The use of **108 half-cut monocrystalline solar cells** helps minimize losses under partial shading and improves stability in real-world conditions, such as those caused by chimneys, skylights, or multi-roof installations. The modules utilize **TOPCon technology**, which is valued for its good performance at higher temperatures and its efficient energy collection in the morning and during cloudy conditions, resulting in more predictable energy production in the Polish climate. The version with a **black frame** makes it easy to integrate into modern roofs and projects where a consistent appearance is important. Thanks to its refined design and light-reflecting glass coating, the APOLLON 1.0 108 M is suitable for both single-family homes and commercial buildings, where **reliability** and stable operating parameters over many years are crucial. (\[fr.enfsolar.com\](https://fr.enfsolar.com/pv/panel-datasheet/crystalline/63323?utm\_source=openai)) ## Notable figures - Efficiency of 22.3% matches the \*\*TOPCon 400-450W\*\* median - Power density of 222.7 W/m² matches the \*\*TOPCon 400-450W\*\* median - -0.32%/°C temperature coefficient - 0.03pp worse than \*\*TOPCon 400-450W\*\* median (-0.29%/°C), expect higher hot weather losses - Ranked #5100 out of 14005 panels for efficiency in the database ## Questions ### What warranties does the Heckert Solar APOLLON 1.0 108 M come with? Heckert Solar provides a 15-year product warranty and a 25-year linear power warranty on the APOLLON 1.0 108 M. The module retains at least 90% of rated power after 10 years and at least 80% after 25 years. Both warranties are backed by a German manufacturer with a stable service infrastructure. ### Does TOPCon technology in the APOLLON 1.0 108 M make a real difference in Central European weather conditions? Yes. TOPCon cells offer a low temperature coefficient of approximately -0.25%/°C, which reduces power losses on hot summer days compared to PERC modules. More importantly for Central European climates, TOPCon performs well under diffuse light — the APOLLON 1.0 108 M generates power more efficiently on overcast days and in the early morning hours than previous-generation cell technologies. ### How do the 108 half-cut cells in the APOLLON 1.0 108 M handle partial shading from a chimney or dormer? Half-cut cells reduce operating current per cell, which lowers resistive losses and limits the impact of partial shading. The module is split into two independent electrical sections, so shading one section does not fully block the other. On roofs with chimneys, dormers, or roof windows, this design can improve annual energy yield by several percent compared to full-cell modules. ### What are the dimensions and weight of the APOLLON 1.0 108 M — will it fit on a standard roof? The panel measures 1,742 × 1,134 × 35 mm and weighs 21.3 kg. This is a standard M10 format compatible with typical aluminum racking systems. With up to 440 Wp output and module efficiency above 22%, you get a high energy density — 10 panels require approximately 20 m² of roof surface. ### Is the black frame variant of the APOLLON 1.0 108 M any different technically from the standard version? The electrical specifications are identical — 440 Wp peak power, TOPCon cell technology, 16 busbars, and Stäubli EVO2 connectors. The black frame is purely an aesthetic choice that gives the array a uniform dark appearance popular on modern homes and clay-tile roofs. The black anodized finish runs slightly warmer in direct sunlight, but the effect on energy yield is negligible. ### Where are Heckert Solar APOLLON 1.0 108 M panels manufactured, and why does it matter? The APOLLON 1.0 108 M is manufactured exclusively in Germany at Heckert Solar's facility in Chemnitz. EU production means compliance with strict quality standards, no exposure to import tariffs on non-EU modules, and straightforward warranty claims. For installers and investors ordering from Poland, this is a meaningful logistical and quality advantage. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/DB-APOLLON-10-M-430-440Wp-4e6dad3e7c6c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +50 W, cooler, +2.2 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +50 W, cooler, +2.2 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | Cooler, +2.0 pp, +5 yr warranty | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | Cooler, +2.0 pp, +5 yr warranty | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | Cooler, +2.0 pp, +5 yr warranty | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | Cooler, +2.0 pp, +5 yr warranty | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | Cooler, +2.0 pp, +5 yr warranty | | [Heckert Solar APOLLON 1.0 108 M (Black Frame) - 430 W](https://comparepv.com/panel/heckert-solar-apollon-1-0-108-m-black-frame-430-w) | 430 W | -10 W, -0.5 pp | | [Heckert Solar APOLLON 1.0 108 M (Black Frame) - 435 W](https://comparepv.com/panel/heckert-solar-apollon-1-0-108-m-black-frame-435-w) | 435 W | -0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +70 W, cooler, +2.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +55 W, cooler, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +65 W, cooler, +2.4 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +60 W, cooler, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +60 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/heckert-solar-apollon-1-0-108-m-440-1 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.