--- title: "Emmvee E520HCM132-BT 520W Solar Panel - Specs & Review | ComparePV" description: "Emmvee E520HCM132-BT 520W solar panel. Specs: 21.87% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/emmvee-e520hcm132-bt" updated: 2026-09-11 --- # Emmvee E520HCM132-BT Efficiency leader, short guarantee 706 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** Emmvee - **Model:** E520HCM132-BT - **Series:** Titanium Black - **Rated power:** 520 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 500-550 W (706 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 520 W | 535 W | Weak - bottom 18% | | | Module efficiency | 21.87% | 20.90% | Strong - top 1% | 6,908 | | Power density | 218.7 | 209.0 | Strong - top 1% | 6,919 | | Temperature coefficient | -0.290 | -0.350 | Strong - top 1% | 2,165 | | Weight (kg) | 25.0 kg | 28.4 kg | Strong - top 5% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 23% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.87% | 20.90% | Strong - top 1% | 6,908 | | Power density | 218.7 | 209.0 | Strong - top 1% | 6,919 | | Temperature coefficient | -0.290 | -0.350 | Strong - top 1% | 2,165 | | Weight per kWp | 48.1 | 53.0 | Strong - top 5% | 2,044 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 23% | 9,798 | ### Strengths - **21.87% module efficiency** - Top 1% of the PERC 500-550 W segment, against a median of 20.90%. Ranked 6,908th in the whole database. - **218.7 watts per square metre** - Top 1% of the PERC 500-550 W segment, against a median of 209.0. Ranked 6,919th in the whole database. - **-0.290 %/°C temperature coefficient** - Top 1% of the PERC 500-550 W segment, against a median of -0.350. Ranked 2,165th in the whole database. ### Watch out for - **25 year performance warranty** - Bottom 23% of the PERC 500-550 W segment, against a median of 30 yrs. - **Best for:** Residential, BIPV and shaded-installations. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 520 W - **Efficiency:** 21.87 % - **Voltage at Pmax (Vmp):** 39.65 V - **Current at Pmax (Imp):** 13.12 A - **Open-circuit voltage (Voc):** 47.19 V - **Short-circuit current (Isc):** 13.84 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC ### Physical - **Length:** 2097 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 25.0 kg - **Area:** 2.38 m2 - **Power density:** 218.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 89.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 454 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6908 of 14005 | | Power density | 6919 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 2044 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Segment-leading efficiency** - Peak efficiency of 22.45% matches the best peer comparables (EGing STAR Pro 22.45%, ZNShine ZXM7-UHLD144 22.44%, Silfab Commercial NTC 22.4%), showing the series is technologically on par with market leaders despite not being a traditional tier-1 brand. - **N-type TOPCon cell technology** - TOPCon cells deliver lower LID/LeTID degradation and better high-temperature performance than older PERC cells, translating into more stable energy yield under strong irradiance and hot roof conditions. - **Validated reliability via Kiwa PVEL** - Emmvee is the only Indian manufacturer to pass all seven categories of the Kiwa PVEL 2024 Reliability Scorecard, providing independent confirmation of module durability and low production defect risk. - **Aesthetic all-black design** - The uniform full-black frame and backsheet blend well with residential building architecture, making this series attractive for customers who value visual integration alongside electrical performance. - **30+ years of manufacturer experience** - Emmvee has operated in the renewable energy sector since 1992 and has built roughly 7.8 GW of module and 2.94 GW of cell capacity (as of May 2025), indicating manufacturing maturity despite lacking tier-1 bankable status. ## Cons - **No tier-1 bankable status** - The manufacturer does not hold tier-1 bankable status, which may complicate project financing with banks and funds that favor the BNEF Tier 1 list, unlike some peer comparables such as Silfab. - **12-year product warranty** - The product warranty is limited to 12 years, shorter than the growing market standard of 15-25 years offered by leading premium manufacturers alongside the same 25-year power warranty. - **Monofacial module design** - The Titanium Black series is not bifacial, missing out on the additional rear-side energy yield available with newer-generation bifacial TOPCon modules from some competitors. ## About this series The Titanium Black series from Emmvee is designed for investors who expect aesthetics to match performance. The panels use **N-type TOPCon cells**, delivering high energy conversion efficiency while limiting degradation over time and improving resistance to high rooftop operating temperatures. The distinctive, uniformly black frame and backsheet allow the module to blend seamlessly with modern building architecture, making it a particularly attractive choice for residential rooftop installations where aesthetics matter as much as electrical parameters. The use of **half-cut** technology reduces power losses caused by partial shading and lowers the module's internal resistance, resulting in more stable energy yield under variable irradiance conditions. Robust construction and **high mechanical resistance** allow installation in regions with heavy snow and wind loads. By combining efficiency, durability, and premium aesthetics, the Titanium Black series offers a competitive alternative to conventional solar panels, meeting the needs of investors seeking a premium solution without compromising on reliability and long-term system performance. ## Notable figures - Efficiency of 21.9% is 1.0pp above the \*\*PERC 500-550W\*\* median (20.9%) - At 218.7 W/m² power density, this panel generates 9.7 W/m² more per unit area than \*\*PERC 500-550W\*\* median (209.0 W/m²) - Temperature coefficient of -0.29%/°C vs median -0.35%/°C means ~2% less power loss at 65°C - Weight of 25.0 kg (3.4 kg below \*\*PERC 500-550W\*\* median of 28.4 kg) allows easier transport and roof mounting - In the top 49% for efficiency among all PERC panels ## Questions ### What is N-type TOPCon cell technology used in Emmvee Titanium Black panels, and does it improve efficiency? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that reduces carrier recombination through an additional passivation layer. This results in higher energy conversion efficiency compared to conventional P-type PERC cells, lower annual degradation, and better performance under high roof temperatures. As a result, the module, rated up to 580 Wp, delivers stable energy yield throughout its service life. ### What warranty comes with Emmvee Titanium Black panels? The Titanium Black series comes with a 12-year product warranty covering material and workmanship defects, along with a 25-year power output warranty guaranteeing sustained module performance over the long term. This is a market-standard coverage for TOPCon-based panels and supports treating the investment as a long-term asset. ### Are Titanium Black panels suitable for residential roofs in terms of appearance? Yes, this is one of the series' main advantages. The all-black frame and black backsheet eliminate the visible silver elements typical of conventional panels, allowing the module to blend into modern building architecture. This makes it a popular choice for sloped residential roofs, where the visual appearance of the installation matters as much as electrical performance. ### What benefit does half-cut cell technology provide in Emmvee Titanium Black panels under partial shading? Splitting cells in half reduces power losses when part of the module is shaded, for example by a chimney, antenna, or neighboring building. Smaller cells generate lower current losses and reduce the module's internal resistance, resulting in more stable energy yield under variable sunlight conditions and a lower risk of hot spots forming. ### Can Titanium Black panels withstand heavy snow load and strong wind? Yes, the module is engineered for high mechanical strength, allowing installation in regions with significant snow loads and strong winds. The robust frame and reinforced module structure minimize the risk of cell microcracks under heavy external loads, which is important for installations on steeply pitched roofs or at higher elevations. ### How do Emmvee Titanium Black panels differ from bifacial modules? The Titanium Black series is a mono-facial panel, generating energy only from the front side, unlike bifacial modules that also capture reflected light on the rear side from the surrounding surface. In exchange, the Titanium Black module features a full, uniformly black backsheet that improves installation aesthetics, though it forgoes the additional energy gain typical of bifacial installations over reflective ground surfaces. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/TOPCON-TITANIUM-BLACK-INDIA-5978be5dbfd6.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +3.1 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Lighter, +2.9 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +40 W, +2.9 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +2.8 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +35 W, +2.7 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Lighter, +2.6 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +2.6 pp, +5 yr warranty | | [Emmvee E485HCM132-B](https://comparepv.com/panel/emmvee-e485hcm132-b) | 485 W | -35 W, hotter, -1.5 pp | | [Emmvee E490HCM132-B](https://comparepv.com/panel/emmvee-e490hcm132-b) | 490 W | -30 W, hotter, -1.3 pp | | [Emmvee E495HCM132-B](https://comparepv.com/panel/emmvee-e495hcm132-b) | 495 W | -25 W, hotter, -1.1 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +70 W, +1.9 pp, +5 yr warranty | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +65 W, +1.8 pp, +5 yr warranty | | [Bisol BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 W | +60 W, +1.6 pp, +5 yr warranty | | [Gamko New Energy GKA120N-PRO-580W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-580w) | 580 W | +60 W, +1.6 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/emmvee-e520hcm132-bt Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.