--- title: "Vikram Solar ENERSURGE VSMDH.66.665.05 Solar Panel: Specs & Datasheet | ComparePV" description: "Vikram Solar ENERSURGE VSMDH.66.665.05 solar panel. Specs: 24.62% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/vikram-solar-enersurge-vsmdh-66-665-05" image: "https://comparepv.com/og/panel/vikram-solar-enersurge-vsmdh-66-665-05.png" updated: 2026-10-23 --- # Vikram Solar ENERSURGE VSMDH.66.665.05 Efficiency leader, no clear weak spot 88 panels in the segment Back Contact 650-700 W ## Identity - **Manufacturer:** Vikram Solar - **Model:** ENERSURGE VSMDH.66.665.05 - **Series:** ENERSURGE - **Rated power:** 665 W - **Cell technology:** Back Contact - **Bifacial:** yes ## How it compares Compared against segment Back Contact 650-700 W (88 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 665 W | 660 W | Typical | | | Module efficiency | 24.62% | 24.40% | Strong - top 21% | 47 | | Power density | 246.2 | 244.3 | Typical | 47 | | Temperature coefficient | -0.260 | -0.260 | Typical | 515 | | Weight (kg) | 33.4 kg | 32.8 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 24.62% | 24.40% | Strong - top 21% | 47 | | Power density | 246.2 | 244.3 | Typical | 47 | | Temperature coefficient | -0.260 | -0.260 | Typical | 515 | | Weight per kWp | 50.2 | 49.8 | Typical | 3,692 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **24.62% module efficiency** - Top 21% of the Back Contact 650-700 W segment, against a median of 24.40%. - **Best for:** Small roofs that need every watt. ## Specification ### Electrical - **Rated power (Pmax):** 665 W - **Efficiency:** 24.62 % - **Voltage at Pmax (Vmp):** 42.17 V - **Current at Pmax (Imp):** 15.77 A - **Open-circuit voltage (Voc):** 50.00 V - **Short-circuit current (Isc):** 16.75 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.260 %/degC - **Temperature coefficient of Voc:** -0.220 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** Back Contact - **Cell count:** 132 - **Bifacial:** yes ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 33.4 kg - **Area:** 2.70 m2 - **Power density:** 246.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 88.8 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.35 % - **Output after 30 years:** 591 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 47 of 14129 | | Power density | 47 of 14129 | | Temperature coefficient | 515 of 14129 | | Weight | 3692 of 14129 | | Warranty | 21 of 14129 | ## About this series The ENERSURGE series from Vikram Solar is a lineup of photovoltaic modules built on **N-type back contact** technology, where the entire interconnection grid is moved to the rear side of the cell. This leaves the front surface completely free of grids and busbars, delivering **maximum light absorption** and a higher short-circuit current, which translates into a real gain in energy yield, especially under diffuse irradiance conditions. The design, based on G12R half-cut cells and full backside soldering, reduces mechanical stress and the risk of microcracks, resulting in **improved longevity** throughout the module's service life. The series also stands out for its **zero negative power tolerance**, thanks to current binning that minimizes mismatch losses within a string. The bifacial, glass-glass construction additionally captures light reflected from the ground, boosting total energy production. The uniform, black appearance with no visible grid lines makes these panels an aesthetic choice for both residential rooftop installations and large-scale utility solar farms. ENERSURGE is aimed at investors looking for high reliability, a lower LCOE, and a long-term 30-year linear performance warranty. ## Notable figures - At 24.6% efficiency, this panel is on par with typical \*\*Back Contact 650-700W\*\* modules - At 246.2 W/m² power density, roof space requirements are typical for \*\*Back Contact 650-700W\*\* panels - Temperature coefficient of -0.26%/°C matches the \*\*Back Contact 650-700W\*\* median - Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof - #47 for efficiency, #515 for temperature performance out of 14129 panels ## Questions ### What is Back Contact technology in ENERSURGE panels and how does it differ from standard modules? In Back Contact technology, the entire metallization grid and busbars are moved to the rear side of the cell, leaving the front surface completely free of shading caused by wiring. This results in higher short-circuit current and better light absorption, especially under diffuse radiation, compared to conventional modules with visible front-side busbars. ### What is the maximum power output of an ENERSURGE panel and who is it suitable for? ENERSURGE modules reach a maximum power of up to 670 Wp, making them an attractive solution for both large-scale solar farms and residential rooftop installations that require high power density on limited roof space. ### Are ENERSURGE panels bifacial, and how much extra energy can they generate? Yes, the ENERSURGE series uses a bifacial glass-glass design. The rear side of the cell captures reflected radiation from the ground or surrounding surfaces, further increasing total energy yield compared to standard monofacial panels, particularly on elevated mounting structures or ground-mounted solar farms. ### What warranty does Vikram Solar offer on ENERSURGE panels? ENERSURGE panels come with a 12-year product warranty and a 30-year linear power performance warranty. This long coverage period reflects the use of Back Contact technology and G12R half-cells with full rear-side soldering, which reduces mechanical stress and the risk of microcracks throughout the panel's service life. ### What does zero negative power tolerance mean for ENERSURGE panels and why does it matter for system design? Zero negative power tolerance, achieved through current binning, means the actual delivered power of a panel never falls below its rated label value. For installers and investors, this guarantees minimal mismatch losses within a string of modules, resulting in a higher and more predictable energy yield from the entire PV system. ### Is Vikram Solar, the manufacturer of ENERSURGE, a reliable choice for investors? Vikram Solar is a Tier 1 manufacturer headquartered in India, with years of experience supplying modules for large commercial projects and rooftop installations worldwide. Tier 1 status indicates financial stability and bankability, making it easier to secure financing for projects based on this module series. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ENERSURGE-G12R-645-670W-132-CELLS-0a9747c48550.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | -15 W, lighter, +0.6 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +15 W, lighter, +0.6 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +10 W, lighter, +0.4 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | -20 W, lighter, +0.4 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +35 W, heavier, +0.4 pp | | [WINAICO WST-675BKX72-A2](https://comparepv.com/panel/winaico-wst-675bkx72-a2) | 675 W | +10 W, lighter, +0.4 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +30 W, heavier, +0.3 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Lighter | | [Vikram Solar HYPERSOL VSMDH.66.610.05](https://comparepv.com/panel/vikram-solar-hypersol-vsmdh-66-610-05) | 610 W | -55 W, hotter, -2.0 pp | | [Vikram Solar HYPERSOL VSMDH.66.615.05](https://comparepv.com/panel/vikram-solar-hypersol-vsmdh-66-615-05) | 615 W | -50 W, hotter, -1.9 pp | | [Vikram Solar HYPERSOL VSMDH.66.620.05](https://comparepv.com/panel/vikram-solar-hypersol-vsmdh-66-620-05) | 620 W | -45 W, hotter, -1.7 pp | | [Vikram Solar HYPERSOL VSMDH.66.625.05](https://comparepv.com/panel/vikram-solar-hypersol-vsmdh-66-625-05) | 625 W | -40 W, hotter, -1.5 pp | | [Vikram Solar HYPERSOL VSMDH.66.630.05](https://comparepv.com/panel/vikram-solar-hypersol-vsmdh-66-630-05) | 630 W | -35 W, hotter, -1.3 pp | | [Vikram Solar HYPERSOL VSMDH.66.635.05](https://comparepv.com/panel/vikram-solar-hypersol-vsmdh-66-635-05) | 635 W | -30 W, hotter, -1.1 pp | | [Vikram Solar HYPERSOL VSMDH.66.640.05](https://comparepv.com/panel/vikram-solar-hypersol-vsmdh-66-640-05) | 640 W | -25 W, hotter, -0.9 pp | | [Vikram Solar ENERSURGE VSMDH.66.645.05](https://comparepv.com/panel/vikram-solar-enersurge-vsmdh-66-645-05) | 645 W | -20 W, -0.7 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | Lighter | --- Source: https://comparepv.com/panel/vikram-solar-enersurge-vsmdh-66-665-05 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.