--- title: "Vikram Solar PARADEA VSMDH.66.AAA.05-660 660W Solar Panel - Specs & Review | ComparePV" description: "Vikram Solar PARADEA VSMDH.66.AAA.05-660 660W solar panel. Specs: 21.25% efficiency, Monocrystalline cells." source: "https://comparepv.com/panel/vikram-solar-paradea-vsmdh-66-aaa-05-660" updated: 2026-09-11 --- # Vikram Solar PARADEA VSMDH.66.AAA.05-660 Middle of its segment, heavy for its output 320 panels in the segment PERC 650-700 W ## Identity - **Manufacturer:** Vikram Solar - **Model:** PARADEA VSMDH.66.AAA.05-660 - **Series:** PARADEA (VSMDH.66.AAA.05) - **Rated power:** 660 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 650-700 W (320 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 660 W | 660 W | Typical | | | Module efficiency | 21.25% | 21.25% | Typical | 8,904 | | Power density | 212.5 | 212.5 | Typical | 8,959 | | Temperature coefficient | -0.350 | -0.340 | Weak - bottom 10% | 10,419 | | Weight (kg) | 39.5 kg | 34.5 kg | Weak - bottom 1% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.25% | 21.25% | Typical | 8,904 | | Power density | 212.5 | 212.5 | Typical | 8,959 | | Temperature coefficient | -0.350 | -0.340 | Weak - bottom 10% | 10,419 | | Weight per kWp | 59.8 | 52.3 | Weak - bottom 1% | 12,316 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **59.8 kg per kWp** - Bottom 1% of the PERC 650-700 W segment, against a median of 52.3. Ranked 12,316th in the whole database. - **-0.350 %/°C temperature coefficient** - Bottom 10% of the PERC 650-700 W segment, against a median of -0.340. - **Best for:** Utility-scale, commercial and shaded-installations. - **Not ideal for:** Weight-limited structures and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 660 W - **Efficiency:** 21.25 % - **Voltage at Pmax (Vmp):** 38.50 V - **Current at Pmax (Imp):** 17.16 A - **Open-circuit voltage (Voc):** 46.10 V - **Short-circuit current (Isc):** 17.99 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 - **Bifacial:** yes - **Bifacial gain:** 13.50 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 39.5 kg - **Area:** 3.11 m2 - **Power density:** 212.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 83.5 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 551 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8904 of 14005 | | Power density | 8959 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 12316 of 14005 | | Warranty | 21 of 14005 | ## About this series The Vikram Solar PARADEA (VSMDH.66.AAA.05) series are bifacial glass-glass modules designed to effectively increase energy yield, even when conditions on the roof or ground are not ideal. By operating from both sides of the module, they better utilize reflected light, resulting in higher yields in locations with reflective surfaces or in installations on elevated structures. Key features include: \* **Bifacial glass-glass technology**, which enhances durability in harsh environments and reduces the risk of microcracks and deformations. \* **Multi busbar (MBB) technology**, which improves current collection and resistance to micro-damage. \* **Half-cut monocrystalline solar cells**, which help reduce losses and improve stability, while connection box solutions support better performance under partial shading. This makes it a good choice for PV farms, large commercial and industrial installations, and projects where **lower energy costs and reduced operating losses over the long term** are priorities. ## Notable figures - Efficiency of 21.2% matches the \*\*PERC 650-700W\*\* median - Power density of 212.5 W/m² matches the \*\*PERC 650-700W\*\* median - Temperature coefficient of -0.35%/°C matches the \*\*PERC 650-700W\*\* median - At 39.5 kg, this panel is 5.0 kg heavier than the \*\*PERC 650-700W\*\* median (34.5 kg) - more demanding for installation crews - Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof ## Questions ### Is the Vikram Solar PARADEA VSMDH.66.AAA.05 panel still available for purchase? No, this specific version of the PARADEA series (VSMDH.66.AAA.05) has been discontinued. Vikram Solar continues to develop the PARADEA line under newer model codes, so availability of this exact SKU is now limited to remaining distributor stock. Buyers should confirm current inventory with the seller and compare specs against the manufacturer's current lineup. ### How much extra energy does bifacial technology actually add compared to standard panels in the PARADEA series? The glass-glass design of PARADEA panels captures light reflected off the ground surface through the rear side of the module. The gain depends on ground albedo and mounting height, but in typical ground-mount installations over light-colored surfaces or gravel, this usually adds several to over ten percent more annual energy yield compared to a monofacial panel of the same rated power. ### What warranty comes with the PARADEA VSMDH.66.AAA.05 modules and what does it cover? Vikram Solar provides a 12-year product warranty covering material and workmanship defects, plus a 30-year linear power performance warranty guaranteeing limited output degradation over time. This is standard for Tier 1 manufacturers and gives investors confidence in long-term returns from the installation. ### Do half-cut cell PARADEA panels handle partial shading better? Yes, the monocrystalline half-cut cells combined with multi busbar (MBB) technology divide the module into smaller electrical sections. This means partial shading from leaves or a chimney causes a smaller drop in overall panel output compared to conventional full-cell modules. ### What installations are the 680 Wp PARADEA panels best suited for? Thanks to their high per-unit power output of up to 680 Wp and bifacial glass-glass construction, the PARADEA series is best suited for large-scale PV farms and commercial and industrial (C&I) installations, where a lower levelized cost of energy and reduced long-term operational losses matter most. ### How does glass-glass construction differ from standard backsheet panels, and is it worth the extra cost? In glass-glass panels, the cells are laminated between two glass sheets instead of glass and a polymer backsheet. This increases module rigidity, reduces the risk of micro-cracks and warping, and improves resistance to moisture and degradation in harsh climates. The added cost typically pays off through longer service life and bifacial energy gain. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/59461660868a5c2e38bd81-d56133adf29f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +3.8 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +3.8 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, lighter, +3.8 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Cooler, lighter, +3.6 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +3.6 pp | | [Vikram Solar PARADEA VSMDH.66.AAA.05-655](https://comparepv.com/panel/vikram-solar-paradea-vsmdh-66-aaa-05-655) | 655 W | Very close match | | [Vikram Solar PARADEA VSMDH.66.AAA.05-665](https://comparepv.com/panel/vikram-solar-paradea-vsmdh-66-aaa-05-665) | 665 W | Very close match | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +145 W, cooler, +3.9 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +140 W, cooler, +3.6 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +135 W, cooler, +3.6 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +130 W, cooler, +3.4 pp | | [Trina Solar TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 W | +100 W, cooler, +3.2 pp | | [AIKO AIKO-A785-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a785-grh78dw) | 785 W | +125 W, cooler, +3.1 pp | | [Gokin GK-4-78HGBD-780M](https://comparepv.com/panel/gokin-gk-4-78hgbd-780m) | 780 W | +120 W, cooler, +3.1 pp | --- Source: https://comparepv.com/panel/vikram-solar-paradea-vsmdh-66-aaa-05-660 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.