--- title: "IBC Solar IBC Module White 445 MS-TA1 vs IBC Solar YH550W-36MH - Solar Panel Comparison | ComparePV" description: "Compare IBC Solar IBC Module White 445 MS-TA1 vs IBC Solar YH550W-36MH side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/ibc-solar-ibc-module-white-445-ms-ta1/ibc-solar-yh550w-36mh" updated: 2026-09-11 --- # IBC Solar IBC Module White 445 MS-TA1 vs IBC Solar YH550W-36MH IBC Module White 445 MS-TA1 leads on the differences that matter The largest is module efficiency: 0.99 pp more efficient. 6 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [IBC Solar IBC Module White 445 MS-TA1](https://comparepv.com/panel/ibc-solar-ibc-module-white-445-ms-ta1) | [IBC Solar YH550W-36MH](https://comparepv.com/panel/ibc-solar-yh550w-36mh) | | Manufacturer | IBC Solar | IBC Solar | | Power | 445 Wp | 550 Wp | | Efficiency | 22.27 % | 21.28 % | | Technology | TOPCon | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | IBC Module White 445 MS-TA1 | YH550W-36MH | Difference | | --- | --- | --- | --- | | Module efficiency | 22.27 % | 21.28 % | +0.99 pp for IBC Module White 445 MS-TA1 | | Temperature coefficient | -0.300 %/°C | -0.350 %/°C | +0.050 %/°C for IBC Module White 445 MS-TA1 | | Rated power | 445 Wp | 550 Wp | +105 W for YH550W-36MH | | Power density | 222.7 Wp/m² | 212.8 Wp/m² | +9.9 Wp/m² for IBC Module White 445 MS-TA1 | | Weight | 21.0 kg | 27.0 kg | -6.0 kg for IBC Module White 445 MS-TA1 | | Product warranty | 15 yrs | 30 yrs | +15 yrs for YH550W-36MH | | Open-circuit voltage | 39.59 V | 50.10 V | 10.51 V apart | | Module area | 1.998 m² | 2.584 m² | 0.586 m² apart | | Cell technology | TOPCon | PERC | TOPCon vs PERC | | Voltage at max power | 33.02 V | 42.13 V | 9.11 V apart | | Cell count | 108 | 144 | 36 cells apart | | Dimensions | 1762x1134x30 mm | 2279x1134x30 mm | 1762x1134x30 mm vs 2279x1134x30 mm | ## Every compared parameter | Parameter | IBC Module White 445 MS-TA1 | YH550W-36MH | | --- | --- | --- | | Rated power | 445 Wp | 550 Wp | | Module efficiency | 22.27 % | 21.28 % | | Power density | 222.7 Wp/m² | 212.8 Wp/m² | | Open-circuit voltage | 39.59 V | 50.10 V | | Voltage at max power | 33.02 V | 42.13 V | | Short-circuit current | 13.93 A | 13.90 A | | Current at max power | 13.48 A | 13.06 A | | Temperature coefficient | -0.300 %/°C | -0.350 %/°C | | Dimensions | 1762x1134x30 mm | 2279x1134x30 mm | | Module area | 1.998 m² | 2.584 m² | | Weight | 21.0 kg | 27.0 kg | | Weight per kWp | 47.2 kg/kWp | 49.1 kg/kWp | | Product warranty | 15 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | - | | Cell technology | TOPCon | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 144 | | Bifacial | No | No | ## Thirty-year yield A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year - **Cumulative output, IBC Module White 445 MS-TA1:** 14,931 kWh - **Cumulative output, YH550W-36MH:** 18,454 kWh - **Gap:** 3,523 kWh ## Output when hot | Condition | Cell temperature | IBC Module White 445 MS-TA1 | YH550W-36MH | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 445 W | 550 W | 100.0% of rated power | | Cool, bright day | 40 °C | 425 W | 521 W | 94.8% of rated power | | Typical summer roof | 55 °C | 405 W | 492 W | 89.5% of rated power | | Hot roof | 70 °C | 385 W | 463 W | 84.2% of rated power | ## Against the whole database | Measure | IBC Module White 445 MS-TA1 | YH550W-36MH | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #5,481 | #8,795 | 14,005 | IBC Module White 445 MS-TA1 leads by 3,314 places | | Power density | #5,302 | #8,643 | 14,005 | IBC Module White 445 MS-TA1 leads by 3,341 places | | Heat behaviour | #6,093 | #10,419 | 14,005 | IBC Module White 445 MS-TA1 leads by 4,326 places | | Weight | #1,537 | #2,721 | 14,005 | IBC Module White 445 MS-TA1 leads by 1,184 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #8,772 | #3,146 | 14,005 | YH550W-36MH leads by 5,626 places | ## Questions ### Which panel is better: IBC Solar IBC Module White 445 MS-TA1 or IBC Solar YH550W-36MH? According to our database: **IBC Solar IBC Module White 445 MS-TA1** has higher module efficiency (**22.27%** vs **21.28%**); **IBC Solar IBC Module White 445 MS-TA1** tolerates heat better (temp coeff **-0.300%/°C** vs **-0.350%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of IBC Solar IBC Module White 445 MS-TA1 and IBC Solar YH550W-36MH? **IBC Solar IBC Module White 445 MS-TA1** has a module efficiency of **22.27%**, while **IBC Solar YH**550 W**-36MH** is **21.28%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does IBC Solar IBC Module White 445 MS-TA1 use vs IBC Solar YH550W-36MH? **IBC Solar IBC Module White 445 MS-TA1** uses **TOPCon** cells; **IBC Solar YH**550 W**-36MH** uses **PERC**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on IBC Solar IBC Module White 445 MS-TA1 and IBC Solar YH550W-36MH? **IBC Solar IBC Module White 445 MS-TA1** has a **30 years** power warranty; **IBC Solar YH**550 W**-36MH** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ## Related comparisons - [IBC Solar IBC Module White 445 MS-TA1 vs IBC Solar IBC Module White 455 MS-TA1](https://comparepv.com/compare/ibc-solar-ibc-module-white-445-ms-ta1/ibc-solar-ibc-module-white-455-ms-ta1) - 3 differences, the largest is module efficiency - [IBC Solar IBC Module White 445 MS-TA1 vs IBC Solar IBC Module White 450 MS-TA1](https://comparepv.com/compare/ibc-solar-ibc-module-white-445-ms-ta1/ibc-solar-ibc-module-white-450-ms-ta1) - One difference: module efficiency - [IBC Solar IBC Module White 445 MS-TA1 vs IBC Solar IBC Module White 440 MS-TA1](https://comparepv.com/compare/ibc-solar-ibc-module-white-445-ms-ta1/ibc-solar-ibc-module-white-440-ms-ta1) - One difference: module efficiency - [IBC Solar YH550W-36MH vs IBC Solar YH545W-36MH](https://comparepv.com/compare/ibc-solar-yh550w-36mh/ibc-solar-yh545w-36mh) - The same specification on paper - [IBC Solar YH550W-36MH vs IBC Solar YH540W-36MH](https://comparepv.com/compare/ibc-solar-yh550w-36mh/ibc-solar-yh540w-36mh) - 3 differences, the largest is module efficiency - [IBC Solar IBC Module White 445 MS-TA1 vs IBC Solar YH720W-33MHD/MH](https://comparepv.com/compare/ibc-solar-ibc-module-white-445-ms-ta1/ibc-solar-yh720w-33mhd-mh) - 15 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/ibc-solar-ibc-module-white-445-ms-ta1/ibc-solar-yh550w-36mh Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.