--- title: "VDS Renewable VDS-S144/M6H-BG-435W 435W Solar Panel - Specs & Review | ComparePV" description: "VDS Renewable VDS-S144/M6H-BG-435W 435W solar panel. Specs: 20.00% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/vds-renewable-vds-s144-m6h-bg-435w" updated: 2026-09-11 --- # VDS Renewable VDS-S144/M6H-BG-435W Middle of its segment, heavy for its output 7,027 panels in the 335-535 W band, all technologies ## Identity - **Manufacturer:** VDS Renewable - **Model:** VDS-S144/M6H-BG-435W - **Series:** VDS-S144/M6H-BG - **Rated power:** 435 W - **Cell technology:** Monocrystalline - **Bifacial:** yes ## How it compares Compared against 335-535 W band, all technologies (7027 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 435 W | 440 W | Typical | | | Module efficiency | 20.00% | 21.51% | Weak - bottom 13% | 12,214 | | Power density | 199.8 | 215.1 | Weak - bottom 13% | 12,239 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,778 | | Weight (kg) | 28.5 kg | 23.5 kg | Weak - bottom 6% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 17% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.00% | 21.51% | Weak - bottom 13% | 12,214 | | Power density | 199.8 | 215.1 | Weak - bottom 13% | 12,239 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,778 | | Weight per kWp | 65.5 | 52.8 | Weak - bottom 6% | 13,085 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 17% | 9,798 | ### Watch out for - **65.5 kg per kWp** - Bottom 6% of the 335-535 W band, against a median of 52.8. Ranked 13,085th in the whole database. - **199.8 watts per square metre** - Bottom 13% of the 335-535 W band, against a median of 215.1. - **20.00% module efficiency** - Bottom 13% of the 335-535 W band, against a median of 21.51%. - **Best for:** Commercial and shaded-installations. - **Not ideal for:** Weight-limited structures, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 435 W - **Efficiency:** 20.00 % - **Voltage at Pmax (Vmp):** 40.80 V - **Current at Pmax (Imp):** 10.67 A - **Open-circuit voltage (Voc):** 48.90 V - **Short-circuit current (Isc):** 11.29 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 41 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 144 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2095 mm - **Width:** 1039 mm - **Thickness:** 30 mm - **Weight:** 28.5 kg - **Area:** 2.18 m2 - **Power density:** 199.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 370 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12214 of 14005 | | Power density | 12239 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 13085 of 14005 | | Warranty | 9798 of 14005 | ## About this series The VDS Renewable VDS-S144/M6H-BG series are bifacial glass-glass modules designed for stable operation in demanding installations. Thanks to **bidirectional energy conversion**, they can better utilize reflected light from the ground, which helps to increase power generation where traditional "single-sided" panels leave potential untapped. The use of **half-cut technology** minimizes losses and improves performance under partial shading, while **MBB technology** supports higher efficiency and better resistance to microcracks in daily operation. In practice, the VDS-S144/M6H-BG solves common problems for farms and roofs in challenging operating conditions - temperature fluctuations, stronger winds, higher loads, and the risk of accelerated laminate aging. The **glass-glass** design promotes long-term durability, and the **high-sealing junction box** helps maintain safety and reliability. It is a good choice for commercial, industrial, and ground-mounted installations where predictable performance and durability are more important than just paper specifications. ## Notable figures - Efficiency of 20.0% is 1.8pp below the \*\*database\*\* median (21.8%) - 199.8 W/m² power density is 18.3 W/m² below \*\*database\*\* median (218.1 W/m²) - requires larger installation area - At -0.34%/°C, loses 0.04pp more power per degree than \*\*database\*\* median (-0.30%/°C) - Weight of 28.5 kg is 2.0 kg above \*\*database\*\* median (26.5 kg) - verify structural support - Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface ## Questions ### Are VDS-S144/M6H-BG panels still available for purchase? No, the VDS-S144/M6H-BG series has been discontinued. Modules may still be available from distributors as remaining stock, but the manufacturer no longer guarantees continuous supply for new, larger projects. When planning an installation, confirm the availability of a specific batch and consider current replacement models with similar specifications. ### How do bifacial VDS-S144/M6H-BG panels differ from standard single-sided panels? Bifacial panels capture not only direct sunlight but also light reflected from the ground and reaching the rear side of the module. Thanks to the glass-glass construction and transparent backsheet, the VDS-S144/M6H-BG can generate additional energy from reflections, especially over bright surfaces, gravel, or snow. In practice this results in higher annual yield than classic backsheet panels of similar surface area. ### What warranty comes with VDS-S144/M6H-BG modules? VDS Renewable provides a 12-year product warranty covering material and workmanship defects, plus a 30-year power output warranty guaranteeing a minimum generation level over that period. These are standard terms for modern bifacial modules, though since this series is discontinued, warranty service may involve longer lead times. ### Does the 450 Wp VDS-S144/M6H-BG panel require a special mounting structure? The glass-glass construction is heavier than backsheet panels, so it requires a sturdy mounting system rated for the higher load, particularly on flat roofs or ground-mount installations. For bifacial setups, east-west racking or elevated frames are recommended to allow light exposure to the rear side, maximizing the bifacial gain. ### How do half-cut and MBB technology work in VDS-S144/M6H-BG panels, and is it worth it? Half-cut means cells are split in half, reducing resistive losses and improving performance under partial shading, such as from a chimney or leaves. MBB (multi busbar) technology increases the number of current-carrying paths, boosting conversion efficiency and lowering the risk of microcracks. Together these technologies deliver higher and more stable energy yield throughout the system's operating life. ### What types of installations are best suited for VDS-S144/M6H-BG panels? This series was designed for commercial, industrial, and ground-mount installations where wind resistance, temperature fluctuations, and long-term laminate durability matter. The glass-glass construction and high-sealing junction box perform well under demanding conditions, such as large solar farms or industrial roofs exposed to greater mechanical loads. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/430-450W-166-144cells-bifacial-68d5fad5c46f.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | Cooler, lighter, +4.3 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | Cooler, lighter, +4.3 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | Cooler, lighter, +4.3 pp | | [Gokin GK-5-54HG-485M](https://comparepv.com/panel/gokin-gk-5-54hg-485m) | 485 W | Cooler, lighter, +4.3 pp | | [Heckert Solar ZEUS 3.0+ 108 485WP](https://comparepv.com/panel/heckert-solar-zeus-3-0-108-485wp) | 485 W | +50 W, cooler, +4.3 pp | | [VDS Renewable VDS-S144/M6H-BG-430W](https://comparepv.com/panel/vds-renewable-vds-s144-m6h-bg-430w) | 430 W | -0.3 pp | | [VDS Renewable VDS-S144/M6H-BG-440W](https://comparepv.com/panel/vds-renewable-vds-s144-m6h-bg-440w) | 440 W | Very close match | | [VDS Renewable VDS-S144/M6H-445](https://comparepv.com/panel/vds-renewable-vds-s144-m6h-445) | 445 W | +10 W, lighter, +0.5 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +155 W, +3.8 pp, +5 yr warranty | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +150 W, +3.6 pp, +5 yr warranty | | [Bisol BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 W | +145 W, cooler, +3.5 pp | | [Gamko New Energy GKA120N-PRO-580W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-580w) | 580 W | +145 W, +3.4 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/vds-renewable-vds-s144-m6h-bg-435w 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.