--- title: "Vikram Solar SOMERA VSMH.66.510.05 Solar Panel: Specs & Datasheet | ComparePV" description: "Vikram Solar SOMERA VSMH.66.510.05 solar panel. Specs: 21.46% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/vikram-solar-somera-vsmh-66-510-05" image: "https://comparepv.com/og/panel/vikram-solar-somera-vsmh-66-510-05.png" updated: 2026-09-11 --- # Vikram Solar SOMERA VSMH.66.510.05 Space saver, no clear weak spot 709 panels in the segment PERC 500-550 W ## Identity - **Manufacturer:** Vikram Solar - **Model:** SOMERA VSMH.66.510.05 - **Series:** SOMERA VSMH.66.AAA.05 - **Rated power:** 510 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 500-550 W (709 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 510 W | 535 W | Weak - bottom 15% | | | Module efficiency | 21.46% | 20.90% | Strong - top 2% | 8,315 | | Power density | 214.6 | 209.0 | Strong - top 2% | 8,283 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,489 | | Weight (kg) | 25.9 kg | 28.3 kg | Strong - top 23% | | | Performance warranty | 27 yrs | 30 yrs | Typical | 9,781 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.46% | 20.90% | Strong - top 2% | 8,315 | | Power density | 214.6 | 209.0 | Strong - top 2% | 8,283 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,489 | | Weight per kWp | 50.8 | 53.0 | Strong - top 23% | 4,233 | | Performance warranty | 27 yrs | 30 yrs | Typical | 9,781 | ### Strengths - **214.6 watts per square metre** - Top 2% of the PERC 500-550 W segment, against a median of 209.0. Ranked 8,283rd in the whole database. - **21.46% module efficiency** - Top 2% of the PERC 500-550 W segment, against a median of 20.90%. Ranked 8,315th in the whole database. - **50.8 kg per kWp** - Top 23% of the PERC 500-550 W segment, against a median of 53.0. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 510 W - **Efficiency:** 21.46 % - **Voltage at Pmax (Vmp):** 38.90 V - **Current at Pmax (Imp):** 13.10 A - **Open-circuit voltage (Voc):** 46.10 V - **Short-circuit current (Isc):** 13.80 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.270 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 132 ### Physical - **Length:** 2096 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 25.9 kg - **Area:** 2.38 m2 - **Power density:** 214.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 27 years - **Output guaranteed at end of warranty:** 83.7 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 418 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8315 of 14129 | | Power density | 8283 of 14129 | | Temperature coefficient | 10489 of 14129 | | Weight | 4233 of 14129 | | Warranty | 9781 of 14129 | ## About this series The SOMERA VSMH.66.AAA.05 series consists of monocrystalline monofacial modules built on **M10 half-cut** technology, where 66 Mono PERC cells are split into 132 half-cells, reducing resistive losses and improving performance under partial shading. The manufacturer focused on **0% negative power tolerance** combined with current binning, giving installers confidence that delivered modules never fall short of rated output while minimizing string mismatch losses. The **IP68 potted junction box** along with enhanced resistance to corrosion, sand dust, ammonia, and salt mist make this series well suited both for standard rooftop installations and more demanding environmental conditions. A highly automated production line with multi-stage EL inspection results in lower factory defect rates. The whole series is backed by a **27-year linear power warranty**, supporting a lower LCOE and improved return on investment. It is a solid choice for investors seeking proven, industrial-grade monofacial modules without compromising on reliability or predictable energy yield over the long-term operation of the installation. ## Notable figures - At 21.5% efficiency, this panel is 0.6pp above typical \*\*PERC 500-550W\*\* modules (median: 20.9%) - Power density of 214.6 W/m² packs 5.6 W/m² more into the same footprint vs \*\*PERC 500-550W\*\* median (209.0 W/m²) - Temperature coefficient of -0.35%/°C matches the \*\*PERC 500-550W\*\* median - At 25.9 kg, this panel is 2.4 kg lighter than \*\*PERC 500-550W\*\* median (28.3 kg) - easier handling during installation - Ranked #8315 out of 14129 panels for efficiency in the database ## Questions ### What warranty comes with the Vikram Solar SOMERA VSMH.66.AAA.05 panels? The SOMERA VSMH.66.AAA.05 series comes with a 12-year product warranty and a 27-year linear power warranty. This means the manufacturer commits to repairing or replacing a defective module for 12 years, while guaranteeing a defined power output level for 27 years, declining linearly over time. This warranty structure supports lower LCOE and a more predictable return on investment over the system's operating lifetime. ### Is the SOMERA VSMH.66.AAA.05 a bifacial panel? No, the SOMERA VSMH.66.AAA.05 series consists of monofacial modules that generate power only from the front side. Unlike bifacial panels, they do not capture light reflected off the ground, but they cost less to produce and are simpler to mount on standard roof structures, where rear-side albedo gain would be minimal anyway. This makes them well suited for typical residential and ground-mount installations without elevated racking. ### What does the M10 half-cut technology used in this series deliver? The panels use 66 Mono PERC cells in the M10 format, split into 132 half-cells. This design reduces internal resistive losses and helps the module perform better under partial shading, for example from a chimney, antenna, or an adjacent row of panels. In practice, this translates into higher real-world energy yield under non-ideal irradiance conditions compared to older full-cell modules. ### Are the SOMERA VSMH.66.AAA.05 panels suitable for harsh environments, such as agricultural or industrial sites? Yes, the series offers enhanced resistance to corrosion, dust, ammonia, and salt mist, making it a good choice for installations near livestock farms, coastal areas, or industrial sites. It also features an IP68 potted junction box that protects electrical connections from moisture and contaminants. As a result, the panels maintain stable operation and lower failure risk even in environments more aggressive than a standard residential roof. ### What does 0% negative power tolerance mean on a 515 Wp panel? 0% negative power tolerance with current binning means that no delivered module labeled 515 Wp will have an actual output below the rated value, and panels are additionally sorted by current to minimize mismatch within a string. For installers and investors, this provides certainty about the system's real power output and reduces losses caused by mismatch, meaning differences in parameters between modules wired in series. ### Is Vikram Solar a reliable manufacturer, and is the SOMERA series worth buying? Vikram Solar is an India-based Tier 1 manufacturer, a bankability status recognized by banks and insurers underwriting PV projects. A highly automated production line with multi-stage electroluminescence (EL) inspection helps reduce factory defect rates. Combined with the 27-year power warranty and half-cut PERC technology, the SOMERA series is a solid choice for investors seeking predictable, industrial-grade module quality. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/SOMERA-M10-490-515W-132-CELLS-80756dd0d0ba.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +3.5 pp, +3 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.3 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +50 W, cooler, +3.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +3.2 pp, +3 yr warranty | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | Cooler, +3.2 pp, +3 yr warranty | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +45 W, cooler, +3.1 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.0 pp | | [Vikram Solar SOMERA VSMH.66.490.05](https://comparepv.com/panel/vikram-solar-somera-vsmh-66-490-05) | 490 W | -20 W, -0.8 pp | | [Vikram Solar SOMERA VSMH.66.495.05](https://comparepv.com/panel/vikram-solar-somera-vsmh-66-495-05) | 495 W | -15 W, -0.6 pp | | [Vikram Solar SOMERA VSMH.66.500.05](https://comparepv.com/panel/vikram-solar-somera-vsmh-66-500-05) | 500 W | -10 W, -0.4 pp | | [Vikram Solar SOMERA VSMH.66.505.05](https://comparepv.com/panel/vikram-solar-somera-vsmh-66-505-05) | 505 W | -0.2 pp | | [Vikram Solar SOMERA VSMH.66.515.05](https://comparepv.com/panel/vikram-solar-somera-vsmh-66-515-05) | 515 W | +0.2 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +80 W, cooler, +2.4 pp | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +75 W, cooler, +2.2 pp | | [Bisol BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 W | +70 W, cooler, +2.0 pp | | [Gamko New Energy GKA120N-PRO-580W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-580w) | 580 W | +70 W, cooler, +2.0 pp | --- Source: https://comparepv.com/panel/vikram-solar-somera-vsmh-66-510-05 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.