--- title: "IBC Solar Transparent 455 LS-TA2 455W Solar Panel - Specs & Review | ComparePV" description: "IBC Solar Transparent 455 LS-TA2 455W solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ibc-solar-transparent-455-ls-ta2" updated: 2026-09-11 --- # IBC Solar Transparent 455 LS-TA2 Middle of its segment, heavy for its output 156 panels in the segment Back Contact 450-500 W ## Identity - **Manufacturer:** IBC Solar - **Model:** Transparent 455 LS-TA2 - **Series:** IBC Module Transparent - **Rated power:** 455 W - **Cell technology:** Back Contact - **Bifacial:** yes ## How it compares Compared against segment Back Contact 450-500 W (156 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 455 W | 475 W | Weak - bottom 11% | | | Module efficiency | 22.80% | 23.50% | Weak - bottom 8% | 2,714 | | Power density | 227.7 | 235.2 | Weak - bottom 5% | 2,888 | | Temperature coefficient | -0.290 | -0.260 | Weak - bottom 5% | 2,165 | | Weight (kg) | 24.5 kg | 23.5 kg | Weak - bottom 1% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.80% | 23.50% | Weak - bottom 8% | 2,714 | | Power density | 227.7 | 235.2 | Weak - bottom 5% | 2,888 | | Temperature coefficient | -0.290 | -0.260 | Weak - bottom 5% | 2,165 | | Weight per kWp | 53.8 | 48.0 | Weak - bottom 1% | 7,897 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **53.8 kg per kWp** - Bottom 1% of the Back Contact 450-500 W segment, against a median of 48.0. Ranked 7,897th in the whole database. - **-0.290 %/°C temperature coefficient** - Bottom 5% of the Back Contact 450-500 W segment, against a median of -0.260. Ranked 2,165th in the whole database. - **227.7 watts per square metre** - Bottom 5% of the Back Contact 450-500 W segment, against a median of 235.2. Ranked 2,888th in the whole database. - **Best for:** BIPV, commercial and residential. - **Not ideal for:** Weight-limited structures, hot climates and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 455 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 34.11 V - **Current at Pmax (Imp):** 13.34 A - **Open-circuit voltage (Voc):** 40.45 V - **Short-circuit current (Isc):** 14.24 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:** 0.048 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** Back Contact - **Cell count:** 108 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.5 kg - **Area:** 2.00 m2 - **Power density:** 227.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 398 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2714 of 14005 | | Power density | 2888 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 7897 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Back Contact cells — zero front shading loss** - Moving all electrical contacts to the rear eliminates front metallization shading, which typically consumes 2–4% of incident irradiance in PERC/TOPCon designs. Result: module efficiency of 22.3–22.8% matches the top of the peer group (Sunlike Solar 22.8%, LEDVANCE 22.77%) and exceeds Waaree ARKA Series (20.93%) by more than 1.4 percentage points — while maintaining full structural transparency. - **Temperature coefficient -0.29%/°C (Pmax)** - The confirmed -0.29%/°C (Pmax) temperature coefficient from the LS-TA2 datasheet outperforms standard PERC cells (-0.34 to -0.35%/°C). At 65°C module temperature (35°C above STC), power loss is ~10.2% vs. ~12.3% for PERC — a meaningful summer yield advantage for BIPV modules exposed to direct insolation. - **30-year linear power warranty** - IBC Solar guarantees output power for 30 years — 5 years longer than the standard 25-year terms offered by Waaree (ARKA Series) and most comparable peers. The extended warranty horizon directly reduces LCOE for long-duration BIPV infrastructure investments and lowers portfolio risk. - **Dual-function BIPV architectural integration** - The transparent glass-glass construction (2 mm + 2 mm low-iron PV glass with AR coating) simultaneously serves as a structural roofing element and power generator. In carport, pergola, and winter garden applications it replaces conventional roofing materials, partially offsetting the higher per-unit cost of BIPV modules vs. standard framed panels. - **44-year manufacturer track record — IBC Solar AG (est. 1982, Germany)** - IBC Solar AG's established European market presence since 1982 materially reduces the risk of manufacturer insolvency over the 30-year warranty period — a genuine concern with many newer PV market entrants. EU service network and technical support availability are substantially stronger than those of Asian manufacturers without local infrastructure. ## Cons - **Design uplift load limited to 1600 Pa — wind-zone constraint** - The maximum design wind uplift (pull) rating is 1600 Pa, against a test load of 2400 Pa per the LS-TA2 datasheet (EN 61215). In high-wind-exposure locations (coastal areas, mountainous terrain, exposure class IV per EN 1991-1-4), suction forces may exceed 1600 Pa, requiring additional structural engineering calculations and reinforced mounting hardware, which increases BIPV BoS costs. - **Module weight 24.5 kg — higher structural load requirements** - The dual-glass construction (2+2 mm) yields a module weight of 24.5 kg per the LS-TA2 datasheet — approximately 15–20% heavier than equivalent-wattage standard ALU-framed mono modules (~20–22 kg). For carport and pergola BIPV installations, this necessitates heavier steel or aluminum profiles, adding an estimated 5–10% to BoS costs compared to lighter solutions. ## About this series \

The IBC Module Transparent series redefines the approach to integrating photovoltaics with modern architecture, offering a unique combination of high energy efficiency and aesthetic transparency. The use of **glass-glass technology** makes these modules a full-fledged structural element, ideally replacing traditional roofing or railing infills. A key distinguishing feature is their ability to transmit natural light while generating clean energy, which effectively solves the problem of excessive shading in the space under the installation. Thanks to the use of high-efficiency **bifacial** cells, these panels effectively utilize reflected radiation, which significantly increases total yields compared to standard single-sided solutions. This construction provides extreme **resistance to external factors** and degradation processes, resulting in an exceptionally long system life. This solution is primarily dedicated to modern carports, winter gardens, and transparent facades of commercial buildings. Unlike typical competitors, IBC Module Transparent offers the perfect balance between transparency level and cell packing density, ensuring optimal visual comfort. By choosing this series, investors gain **design versatility** and a guarantee of safety resulting from rigorous durability tests, making them an unrivaled choice in the premium segment.\

## Notable figures - Efficiency of 22.8% is 0.7pp below the \*\*Back Contact 450-500W\*\* median (23.5%) - 227.7 W/m² power density is 7.5 W/m² below \*\*Back Contact 450-500W\*\* median (235.2 W/m²) - requires larger installation area - Temperature coefficient of -0.29%/°C is 0.03pp worse than \*\*Back Contact 450-500W\*\* median (-0.26%/°C) - higher losses in summer heat - Weight of 24.5 kg is typical for \*\*Back Contact 450-500W\*\* panels - Bifacial design (78% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof ## Questions ### Are IBC Module Transparent panels suitable for carport canopy installations? Yes, the IBC Module Transparent series is specifically engineered for this application. The glass-glass Back Contact construction allows the modules to serve as a structural overhead covering while transmitting natural daylight below, eliminating the dark-tunnel effect common with opaque panels. The modules generate clean energy while simultaneously functioning as the carport's roofing element, with no additional weatherproofing layer required. ### What warranty does the IBC Module Transparent series carry? IBC Solar provides a 25-year product warranty covering manufacturing defects and a 30-year linear power output warranty on the IBC Module Transparent series. With IBC Solar headquartered in Germany and decades of industry track record, long-term warranty fulfillment is backed by a financially stable manufacturer. This represents one of the longest power warranties available in the premium BIPV module segment. ### What is Back Contact cell technology in IBC Module Transparent panels, and what are the real-world benefits? Back Contact (IBC) places all electrical contacts exclusively on the rear side of the cell, leaving the front face entirely free of busbars. This delivers higher cell efficiency, better performance under diffuse light conditions, and a visually clean, transparent front surface. In BIPV architectural applications, the unobstructed cell face is critical for both aesthetic integration and maximum light transmission through the module. ### Does bifacial technology actually add value when IBC Module Transparent panels are installed as a horizontal canopy? Yes. Bifacial cells in the IBC Module Transparent series capture direct irradiance from above and reflected irradiance from ground surfaces below — concrete, gravel, or paving tiles typical in carport environments. In a horizontal canopy configuration, the rear-side gain typically contributes 5–15% additional annual energy yield compared to monofacial modules, meaningfully improving the system's LCOE over its 30-year warranted lifetime. ### What is the peak power of IBC Module Transparent, and how does it compare to other transparent BIPV modules? The series reaches up to 455 Wp, which is exceptionally high for a semi-transparent BIPV module. Standard semi-transparent BIPV products at comparable transparency levels typically range from 150–300 Wp. The elevated output of IBC Module Transparent is a direct result of the Back Contact architecture, which eliminates busbar shading losses and maximizes the active cell area within the same module footprint. ### Can IBC Module Transparent modules be integrated into transparent facades of commercial buildings? Yes, the series is explicitly designed for transparent BIPV facade integration on commercial buildings. The glass-glass structure meets certified load requirements for wind pressure and mechanical stress, while the adjustable transparency level enables meaningful daylighting for office or retail interiors. This makes IBC Module Transparent a viable premium choice for office buildings, shopping centers, and public-use facilities where architectural aesthetics and on-site energy generation must coexist. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/2006300027-ibc-module-transparent-455-ls-ta2-datenblatt-de-8fea7053da76.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +40 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +50 W, cooler, +1.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +35 W, lighter, +1.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +45 W, cooler, +1.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +45 W, lighter, +1.7 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +45 W, lighter, +1.7 pp | | [IBC Solar IBC MonoSol 430 MS10-HC-N GEN2](https://comparepv.com/panel/ibc-solar-ibc-monosol-430-ms10-hc-n-gen2) | 430 W | -25 W, lighter, -1.3 pp | | [IBC Solar IBC MonoSol 435 MS10-HC-N GEN2](https://comparepv.com/panel/ibc-solar-ibc-monosol-435-ms10-hc-n-gen2) | 435 W | -20 W, lighter, -1.0 pp | | [IBC Solar IBC Module White 440 MS-TA1](https://comparepv.com/panel/ibc-solar-ibc-module-white-440-ms-ta1) | 440 W | -15 W, lighter, -0.8 pp | | [IBC Solar IBC Module White 445 MS-TA1](https://comparepv.com/panel/ibc-solar-ibc-module-white-445-ms-ta1) | 445 W | Hotter, lighter, -0.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/ibc-solar-transparent-455-ls-ta2 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.