--- title: "IBC Solar White 445 MS-TA1 445W Solar Panel - Specs & Review | ComparePV" description: "IBC Solar White 445 MS-TA1 445W solar panel. Specs: 22.27% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ibc-solar-white-445-ms-ta1" updated: 2026-09-11 --- # IBC Solar White 445 MS-TA1 Light for its output, weak in heat 52 panels in the segment Back Contact 400-450 W ## Identity - **Manufacturer:** IBC Solar - **Model:** White 445 MS-TA1 - **Series:** IBC Module White MS-TA1 - **Rated power:** 445 W - **Cell technology:** Back Contact ## How it compares Compared against segment Back Contact 400-450 W (52 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 445 W | 435 W | Strong - top 11% | | | Module efficiency | 22.27% | 22.30% | Typical | 5,481 | | Power density | 222.7 | 222.7 | Typical | 5,302 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 12% | 6,093 | | Weight (kg) | 21.0 kg | 20.8 kg | Strong - top 20% | | | Performance warranty | 30 yrs | 25 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.27% | 22.30% | Typical | 5,481 | | Power density | 222.7 | 222.7 | Typical | 5,302 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 12% | 6,093 | | Weight per kWp | 47.2 | 48.2 | Strong - top 20% | 1,537 | | Performance warranty | 30 yrs | 25 yrs | Typical | 21 | ### Strengths - **47.2 kg per kWp** - Top 20% of the Back Contact 400-450 W segment, against a median of 48.2. ### Watch out for - **-0.300 %/°C temperature coefficient** - Bottom 12% of the Back Contact 400-450 W segment, against a median of -0.290. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.27 % - **Voltage at Pmax (Vmp):** 33.02 V - **Current at Pmax (Imp):** 13.48 A - **Open-circuit voltage (Voc):** 39.59 V - **Short-circuit current (Isc):** 13.93 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** Back Contact - **Cell count:** 108 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.0 kg - **Area:** 2.00 m2 - **Power density:** 222.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 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:** 389 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5481 of 14005 | | Power density | 5302 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 1537 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Back-Contact Cells — No Front Shading** - Relocating all metallic contacts to the rear surface eliminates front busbar shading, delivering a 5–7% relative power gain over front-contact designs of the same footprint (SurgePV 2026, pv-magazine). This translates into measurably higher annual energy yield for the same roof area. - **22.02–22.77% Efficiency — Top of Peer Group** - Among direct peer comparables, the Waaree ARKA SERIES peaks at 20.93% (a ~1.84 pp gap), while the LEDVANCE M435~455N54LB-SF-F7 only matches the upper bound of 22.77%. The Sunlike SKT420~455M10-108D6 exceeds it by a marginal 0.03 pp (22.80%), a difference that produces no measurable change in real-world annual yield. - **30-Year Linear Power Warranty** - The manufacturer guarantees >87.4% of rated power over 30 years under a linear performance warranty — well above the 25-year standard common among mass-market module producers. The extended coverage directly reduces LCOE in commercial and residential projects with a depreciation horizon beyond 25 years. - **Independent SUNLAB Certification** - Modules are validated at the SUNLAB laboratory, which has operated as a fully independent PV testing body since 2020 (previously IBC Solar-controlled), applying seven distinct test procedures including solar simulator measurements, climate chamber cycling (heat, cold, humidity), and PID testing — providing durability validation beyond mandatory IEC standards. - **40-Year Track Record and >11 GW Installed** - IBC Solar AG (Bad Staffelstein, Germany, est. 1982) has commissioned over 11 GW of PV systems globally. The company's long European service history and in-region technical support materially reduce counterparty risk for long-horizon financed projects. ## Cons - **Back-Contact Price Premium** - BC modules carried a 15–30% cost premium over comparable TOPCon modules as of 2025 (sources: pv-magazine.com, couleenergy.com). For a typical 10 kWp residential system (~22 modules), this adds approximately €1,000–€2,500 in CAPEX relative to a TOPCon equivalent, extending the estimated simple payback period by roughly 1–2 years. - **15-Year Product Warranty — Below Segment Leaders** - The workmanship warranty is limited to 15 years, while select Tier-1 manufacturers (e.g., LONGi, Jinko Solar) offer 25-year product warranties. In commercial and C&I tenders requiring full material coverage over the 25–30-year asset life, the shorter warranty term may be a disqualifying criterion in procurement scoring. ## About this series The IBC Solar IBC Module White MS-TA1 photovoltaic module series is an advanced solution based on **monocrystalline TOPCon cell technology**, which ensures significantly higher efficiency and better energy yields in the long term. Thanks to the use of a Half-Cut design, these panels effectively minimize power losses resulting from partial shading and reduce the risk of hot spots, which directly impacts the **maximum lifespan of the installation**. The product stands out from the competition by passing **rigorous tests in the SUNLAB laboratory**, confirming its extraordinary durability and resistance to extreme mechanical loads, such as snow pressure or strong wind. MS-TA1 modules offer **excellent performance parameters in low light conditions**, making them an ideal choice for the climate in Poland, where cloudy days are frequent. This is a proposal intended for demanding single-family homeowners and business investors looking for a balance between aesthetics and efficiency. By choosing this series, users receive a **30-year linear power output warranty**, which ensures financial security and energy stability for decades, distinguishing this product from standard budget solutions. ## Notable figures - At 22.3% efficiency, this panel is on par with typical \*\*Back Contact 400-450W\*\* modules - At 222.7 W/m² power density, roof space requirements are typical for \*\*Back Contact 400-450W\*\* panels - Temperature coefficient of -0.30%/°C matches the \*\*Back Contact 400-450W\*\* median - #5481 for efficiency, #6093 for temperature performance out of 14005 panels ## Questions ### What warranty comes with the IBC Module White MS-TA1 panels and what does it cover? The IBC Module White MS-TA1 series includes a 15-year product warranty covering manufacturing defects and a 30-year linear power output warranty. Degradation is capped at 1.0% in year one, then no more than 0.4% per year thereafter. This places the MS-TA1 among the best long-term power guarantees available in its market segment. ### What is TOPCon technology in the MS-TA1 panels and how does it compare to standard PERC modules? TOPCon (Tunnel Oxide Passivated Contact) is an advanced monocrystalline cell architecture that adds a thin passivation layer to reduce carrier recombination. Compared to PERC modules, the MS-TA1 delivers module efficiency up to 22.77%, better performance at elevated temperatures, and slower long-term degradation. For real-world installations this translates into measurably higher annual energy yield. ### How do IBC Module White MS-TA1 panels perform in cloudy weather and low-irradiance conditions in winter? TOPCon cell technology provides superior low-light performance compared to older PERC cells, which is particularly relevant in Central European climates with frequent overcast days. IBC Solar confirms strong low-irradiance output for the MS-TA1 series, meaning the system will generate power more efficiently on typical overcast days than budget monocrystalline modules. ### Are the IBC Module White MS-TA1 455W panels suitable for a pitched residential roof? Yes, the MS-TA1 series is designed for residential prosumer installations on pitched roofs. The panel measures 1762 × 1134 × 30 mm and weighs 21 kg, fitting standard racking systems. The half-cut design with 108 cells reduces power losses from partial shading caused by chimneys or dormers, a common challenge on sloped residential rooftops. ### What sets the IBC Module White MS-TA1 series apart from cheaper solar panels on the market? The key differentiator is IBC Solar's proprietary 7-step SUNLAB testing protocol, which includes mechanical loading up to 5,400 Pa, 1,000 hours of damp heat at 85°C/85% RH, and EL analysis that detects microcracks invisible to the naked eye. Combined with a power tolerance of -0/+3%, buyers are guaranteed the panel meets or exceeds its rated output. Budget modules typically do not undergo testing this rigorous. ### What is the peak power output and module efficiency of the IBC Module White MS-TA1? The top variant in the MS-TA1 lineup reaches 455 Wp at a module efficiency of 22.77%, which is above average for this price tier. The series also includes 440, 445 and 450 Wp variants. The -0/+3% positive power tolerance guarantees the panel will never deliver less than its nameplate power under STC conditions. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ibc-module-white-455-ms-ta1-datasheet-6b2ff9ea7684.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, cooler, +2.5 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, cooler, +2.2 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, cooler, +2.2 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, cooler, +2.0 pp | | [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, cooler, +2.0 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 | -15 W, heavier, -0.8 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 | -10 W, heavier, -0.5 pp | | [IBC Solar IBC Module White 440 MS-TA1](https://comparepv.com/panel/ibc-solar-ibc-module-white-440-ms-ta1) | 440 W | -0.2 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +60 W, cooler, +2.4 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +55 W, cooler, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/ibc-solar-white-445-ms-ta1 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.