--- title: "Emmvee E440HCBT120 440W Solar Panel - Specs & Review | ComparePV" description: "Emmvee E440HCBT120 440W solar panel. Specs: 20.28% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/emmvee-e440hcbt120" updated: 2026-09-11 --- # Emmvee E440HCBT120 Middle of its segment, modest efficiency 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** Emmvee - **Model:** E440HCBT120 - **Series:** QUARTZ - **Rated power:** 440 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 440 W | 410 W | Strong - top 15% | | | Module efficiency | 20.28% | 20.60% | Weak - bottom 22% | 11,853 | | Power density | 202.8 | 206.2 | Weak - bottom 23% | 11,803 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 24.0 kg | 22.0 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.28% | 20.60% | Weak - bottom 22% | 11,853 | | Power density | 202.8 | 206.2 | Weak - bottom 23% | 11,803 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 54.5 | 53.0 | Typical | 8,872 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **20.28% module efficiency** - Bottom 22% of the PERC 400-450 W segment, against a median of 20.60%. - **202.8 watts per square metre** - Bottom 23% of the PERC 400-450 W segment, against a median of 206.2. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 440 W - **Efficiency:** 20.28 % - **Voltage at Pmax (Vmp):** 34.21 V - **Current at Pmax (Imp):** 12.87 A - **Open-circuit voltage (Voc):** 41.44 V - **Short-circuit current (Isc):** 13.55 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 - **Bifacial:** yes ### Physical - **Length:** 1913 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 24.0 kg - **Area:** 2.17 m2 - **Power density:** 202.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 361 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11853 of 14005 | | Power density | 11803 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 8872 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Bifacial Design + Transparent Backsheet** - The combination of a transparent backsheet and bifacial cell architecture enables energy generation from albedo (light reflected from the ground surface). According to Emmvee data, QUARTZ series modules can harvest up to 30% additional energy from reflected light under favorable conditions — a tangible advantage in installations over light-colored gravel, snow, or white roofing membranes. - **Verified Reliability (Kiwa PVEL 2024)** - Emmvee is the only Indian manufacturer to have passed all seven test sequences in the Kiwa PVEL Reliability Scorecard in 2024. This independent quality verification clearly distinguishes the series from lesser-known Asian brands that lack equivalent third-party certification. - **Peer-Level Module Efficiency** - The maximum module efficiency of 21.1% is identical to that of the S-Energy SE65-72BGJ (21.1%) and only 0.03 percentage points below the Jinko Tiger Pro 72HC-TV (21.13%) and Waaree ARKA (21.17%). The QUARTZ series therefore sits at the very top of the comparison set without requiring a Tier-1 brand premium. - **Low Annual Degradation Rate** - The manufacturer specifies an annual degradation rate of 0.4%, which — over a 25-year power output warranty — corresponds to retention of at least ~84.8% of nominal output after 25 years. This is competitive against the industry standard of 0.45–0.55% per year. - **Half-Cut Cells + Multi-Busbar: Shade Resilience** - Half-cut cell technology combined with a multi-busbar interconnection scheme reduces mismatch losses under partial shading and lowers internal module resistance. This translates to more stable performance under conditions typical of Polish rooftops, where partial shading from chimneys and antennas is common. ## Cons - **Not Listed on BNEF Tier 1** - Emmvee does not appear on the BNEF Tier 1 bankable manufacturers list, unlike its direct peer Jinko Solar. For commercial installations and PV farms financed through project finance structures, the absence of bankable status may prevent or complicate debt financing, as lenders routinely require modules from BNEF-listed manufacturers. - **PERC Technology, Not TOPCon / N-Type** - The QUARTZ series is based on PERC (p-type) cells, while the premium market segment is shifting toward N-type TOPCon, which offers lower LID degradation and a superior temperature coefficient. As of 2025–2026, TOPCon modules in a comparable power class are already available from multiple suppliers at similar price points. - **12-Year Product Warranty** - The product workmanship warranty stands at 12 years, which represents the lower boundary of current market standards. Premium manufacturers — such as REC Group and Q CELLS — offer 20–25-year product warranties on comparably priced modules, a factor that directly affects residual asset value risk once the warranty period expires. ## About this series The Emmvee QUARTZ series consists of monocrystalline modules designed to maximize energy production from the same surface area - particularly in situations where every square meter of roof or ground space is valuable. The use of a **transparent backsheet** allows for more efficient utilization of scattered and reflected light, which translates into improved energy production under real-world conditions, even in less sunny environments. The design based on **half-cut cells** improves module performance under partial shading, reducing losses and the risk of power drops throughout the day. In practice, QUARTZ helps reduce energy costs from installations thanks to **higher albedo generation** and more stable operation in varying weather conditions. Furthermore, the use of **multi-busbar connections** supports the electrical and mechanical durability of the module. This is a good option for roof and ground-mounted installations in Poland - from single-family homes to businesses and solar farms, where efficiency, reliability, and resistance to harsh operating conditions are important. ## Notable figures - At 20.3% efficiency, this panel is on par with typical \*\*PERC 400-450W\*\* modules - At 202.8 W/m², this panel generates 3.4 W/m² less per unit area than \*\*PERC 400-450W\*\* median (206.2 W/m²) - Temperature coefficient of -0.35%/°C matches the \*\*PERC 400-450W\*\* median - Weight of 24.0 kg is 2.0 kg above \*\*PERC 400-450W\*\* median (22.0 kg) - verify structural support - Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof ## Questions ### What warranty does Emmvee QUARTZ panels carry and what does it cover? Emmvee provides a 12-year product warranty (covering manufacturing defects and workmanship) and a 25-year linear power output warranty on the QUARTZ series. This means that over 25 years the manufacturer guarantees the module will not lose more power than a specified percentage of its nominal rated value. This is a standard comparable to other brands in the same price tier, though shorter than the 15-year product warranties offered by the largest Tier 1 manufacturers. ### What is a transparent backsheet in the Emmvee QUARTZ panels and does it offer any benefit under Polish conditions? A transparent backsheet replaces the conventional white or black polymer rear film with a clear layer, allowing light to pass through to the rear side of the bifacial cells so the module can harvest irradiance reflected from the roof, ground, or facade. Under Polish conditions — particularly with snow cover, a light-colored substrate, or a white roofing membrane — the albedo-driven energy gain can range from a few percent to over ten percent annually compared with a conventional monofacial module. ### Do the Emmvee QUARTZ 545W panels perform well under partial shading, for example from a chimney? Yes, the half-cut cell technology used in the QUARTZ series significantly reduces losses caused by partial shading. Splitting each cell into two halves means that shading on one portion of the module does not suppress the output of the entire panel as severely as it would with conventional full-size cells. This is a valuable characteristic for rooftops with chimneys, dormer windows, or other obstructions where uninterrupted full-day irradiance is difficult to achieve. ### Where are Emmvee QUARTZ panels manufactured and are they trustworthy? Emmvee is an Indian manufacturer headquartered in Bengaluru with over 30 years of experience in the solar market. The company operates production capacity in the multi-gigawatt range and holds KIWA PVEL certification, which validates module reliability through independent third-party testing. Emmvee does not currently appear on the Tier 1 lists published by the major rating agencies — a factor worth considering in any risk assessment — however its quality certifications and manufacturing scale indicate solid technical credibility. ### Are Emmvee QUARTZ panels suitable for ground-mounted installations such as a PV farm, or only for rooftop use? The QUARTZ series is engineered for both rooftop and ground-mounted applications. The high module power of up to 545 Wp allows a high-capacity system to be built on a smaller footprint, which is especially relevant for utility-scale PV farms. An additional advantage in ground-mounted use is the bifacial technology combined with the transparent backsheet: modules installed above a light-colored surface such as gravel or concrete achieve higher energy yields through the albedo effect compared with conventional monofacial modules. ### How does the bifacial Emmvee QUARTZ panel differ from a standard monofacial PERC module? A standard PERC module harvests energy exclusively from its front side. A bifacial panel such as the Emmvee QUARTZ features active cells on the rear face as well and, thanks to the transparent backsheet, absorbs irradiance reflected from the surrounding environment. In practice this delivers anywhere from a few percent to up to 20 percent more energy per year, depending on substrate albedo and tilt angle. Bifacial technology delivers the greatest benefit where the surface beneath the array is highly reflective — such as a white roofing membrane, light-colored gravel, or snow. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Quartz144132120108-India-19706ac45620.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +50 W, cooler, +4.2 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +50 W, cooler, +4.2 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | Cooler, +4.0 pp, +5 yr warranty | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | Cooler, +4.0 pp, +5 yr warranty | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | Cooler, +4.0 pp, +5 yr warranty | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | Cooler, +4.0 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, +4.0 pp, +5 yr warranty | | [Emmvee E445HCM120-B](https://comparepv.com/panel/emmvee-e445hcm120-b) | 445 W | +0.2 pp | | [Emmvee E450HCM120-B](https://comparepv.com/panel/emmvee-e450hcm120-b) | 450 W | +10 W, +0.5 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +120 W, cooler, +4.5 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +115 W, cooler, +4.3 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +110 W, cooler, +4.1 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +100 W, cooler, +4.1 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +100 W, cooler, +4.1 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +105 W, cooler, +4.0 pp | | [Longi Solar LR7-60HVH-545M](https://comparepv.com/panel/longi-lr7-60hvh-545m) | 545 W | +105 W, cooler, +3.9 pp | --- Source: https://comparepv.com/panel/emmvee-e440hcbt120 Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.