--- title: "IBC Solar IBC Module White 450 MS-TA1 vs IBC Solar IBC Module White 455 MS-TA1 - Solar Panel Comparison | ComparePV" description: "Compare IBC Solar IBC Module White 450 MS-TA1 vs IBC Solar IBC Module White 455 MS-TA1 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-450-ms-ta1/ibc-solar-ibc-module-white-455-ms-ta1" updated: 2026-09-11 --- # IBC Solar IBC Module White 450 MS-TA1 vs IBC Solar IBC Module White 455 MS-TA1 455 MS-TA1 leads on the differences that matter The largest is module efficiency: 0.25 pp more efficient. 18 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [IBC Solar IBC Module White 450 MS-TA1](https://comparepv.com/panel/ibc-solar-ibc-module-white-450-ms-ta1) | [IBC Solar IBC Module White 455 MS-TA1](https://comparepv.com/panel/ibc-solar-ibc-module-white-455-ms-ta1) | | Manufacturer | IBC Solar | IBC Solar | | Power | 450 Wp | 455 Wp | | Efficiency | 22.52 % | 22.77 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 450 MS-TA1 | 455 MS-TA1 | Difference | | --- | --- | --- | --- | | Module efficiency | 22.52 % | 22.77 % | +0.25 pp for 455 MS-TA1 | ## Every compared parameter | Parameter | 450 MS-TA1 | 455 MS-TA1 | | --- | --- | --- | | Rated power | 450 Wp | 455 Wp | | Module efficiency | 22.52 % | 22.77 % | | Power density | 225.2 Wp/m² | 227.7 Wp/m² | | Open-circuit voltage | 39.78 V | 39.98 V | | Voltage at max power | 33.21 V | 33.41 V | | Short-circuit current | 14.00 A | 14.07 A | | Current at max power | 13.55 A | 13.62 A | | Temperature coefficient | -0.300 %/°C | -0.300 %/°C | | Dimensions | 1762x1134x30 mm | 1762x1134x30 mm | | Module area | 1.998 m² | 1.998 m² | | Weight | 21.0 kg | 21.0 kg | | Weight per kWp | 46.7 kg/kWp | 46.2 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 108 | 108 | | Bifacial | No | No | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.300 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, 450 MS-TA1:** 15,098 kWh - **Cumulative output, 455 MS-TA1:** 15,266 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | 450 MS-TA1 | 455 MS-TA1 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 450 W | 455 W | 100.0% of rated power | | Cool, bright day | 40 °C | 430 W | 435 W | 95.5% of rated power | | Typical summer roof | 55 °C | 410 W | 414 W | 91.0% of rated power | | Hot roof | 70 °C | 389 W | 394 W | 86.5% of rated power | ## Against the whole database | Measure | 450 MS-TA1 | 455 MS-TA1 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #4,108 | #3,073 | 14,005 | 455 MS-TA1 leads by 1,035 places | | Power density | #4,225 | #2,888 | 14,005 | 455 MS-TA1 leads by 1,337 places | | Heat behaviour | #6,093 | #6,093 | 14,005 | Tied - the same position in the database | | Weight | #1,258 | #1,016 | 14,005 | 455 MS-TA1 leads by 242 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #8,281 | #7,769 | 14,005 | 455 MS-TA1 leads by 512 places | ## Questions ### Which panel is better: IBC Solar IBC Module White 450 MS-TA1 or IBC Solar IBC Module White 455 MS-TA1? According to our database: **IBC Solar IBC Module White 455 MS-TA1** has higher module efficiency (**22.77%** vs **22.52%**). 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 450 MS-TA1 and IBC Solar IBC Module White 455 MS-TA1? **IBC Solar IBC Module White 450 MS-TA1** has a module efficiency of **22.52%**, while **IBC Solar IBC Module White 455 MS-TA1** is **22.77%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does IBC Solar IBC Module White 450 MS-TA1 use vs IBC Solar IBC Module White 455 MS-TA1? **IBC Solar IBC Module White 450 MS-TA1** uses **TOPCon** cells; **IBC Solar IBC Module White 455 MS-TA1** uses **TOPCon**. 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 450 MS-TA1 and IBC Solar IBC Module White 455 MS-TA1? **IBC Solar IBC Module White 450 MS-TA1** has a **30 years** power warranty; **IBC Solar IBC Module White 455 MS-TA1** 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 450 MS-TA1 vs IBC Solar IBC Module White 445 MS-TA1](https://comparepv.com/compare/ibc-solar-ibc-module-white-450-ms-ta1/ibc-solar-ibc-module-white-445-ms-ta1) - One difference: module efficiency - [IBC Solar IBC Module White 450 MS-TA1 vs IBC Solar IBC Module White 440 MS-TA1](https://comparepv.com/compare/ibc-solar-ibc-module-white-450-ms-ta1/ibc-solar-ibc-module-white-440-ms-ta1) - 3 differences, the largest is module efficiency - [IBC Solar IBC Module White 450 MS-TA1 vs IBC Solar YH720W-33MHD/MH](https://comparepv.com/compare/ibc-solar-ibc-module-white-450-ms-ta1/ibc-solar-yh720w-33mhd-mh) - 15 differences, the largest is temperature coefficient - [IBC Solar IBC Module White 450 MS-TA1 vs IBC Solar YH715W-33MHD/MH](https://comparepv.com/compare/ibc-solar-ibc-module-white-450-ms-ta1/ibc-solar-yh715w-33mhd-mh) - 15 differences, the largest is temperature coefficient - [IBC Solar IBC Module White 450 MS-TA1 vs IBC Solar YH710W-33MHD/MH](https://comparepv.com/compare/ibc-solar-ibc-module-white-450-ms-ta1/ibc-solar-yh710w-33mhd-mh) - 15 differences, the largest is temperature coefficient - [IBC Solar IBC Module White 450 MS-TA1 vs IBC Solar YH550W-36MH](https://comparepv.com/compare/ibc-solar-ibc-module-white-450-ms-ta1/ibc-solar-yh550w-36mh) - 13 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/ibc-solar-ibc-module-white-450-ms-ta1/ibc-solar-ibc-module-white-455-ms-ta1 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.