--- title: "IBC Solar YH545W-36MH vs IBC Solar YH550W-36MH - Solar Panel Comparison | ComparePV" description: "Compare IBC Solar YH545W-36MH 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-yh545w-36mh/ibc-solar-yh550w-36mh" updated: 2026-09-11 --- # IBC Solar YH545W-36MH vs IBC Solar YH550W-36MH Identical on every published parameter All 18 comparable parameters agree, with 1 more left out because at least one datasheet does not publish it. Two records this alike are usually one panel sold under two names, or two bins of the same production line - decide on price and on who you would rather buy from. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [IBC Solar YH545W-36MH](https://comparepv.com/panel/ibc-solar-yh545w-36mh) | [IBC Solar YH550W-36MH](https://comparepv.com/panel/ibc-solar-yh550w-36mh) | | Manufacturer | IBC Solar | IBC Solar | | Power | 545 Wp | 550 Wp | | Efficiency | 21.09 % | 21.28 % | | Technology | PERC | PERC | ## Every compared parameter | Parameter | YH545W-36MH | YH550W-36MH | | --- | --- | --- | | Rated power | 545 Wp | 550 Wp | | Module efficiency | 21.09 % | 21.28 % | | Power density | 210.9 Wp/m² | 212.8 Wp/m² | | Open-circuit voltage | 49.90 V | 50.10 V | | Voltage at max power | 41.93 V | 42.13 V | | Short-circuit current | 13.81 A | 13.90 A | | Current at max power | 13.00 A | 13.06 A | | Temperature coefficient | -0.350 %/°C | -0.350 %/°C | | Dimensions | 2279x1134x30 mm | 2279x1134x30 mm | | Module area | 2.584 m² | 2.584 m² | | Weight | 27.0 kg | 27.0 kg | | Weight per kWp | 49.5 kg/kWp | 49.1 kg/kWp | | Product warranty | 30 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | - | | Cell technology | PERC | PERC | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 144 | 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 Same temp coeff. for both panels (-0.350 %/°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, YH545W-36MH:** 18,286 kWh - **Cumulative output, YH550W-36MH:** 18,454 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | YH545W-36MH | YH550W-36MH | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 545 W | 550 W | 100.0% of rated power | | Cool, bright day | 40 °C | 516 W | 521 W | 94.8% of rated power | | Typical summer roof | 55 °C | 488 W | 492 W | 89.5% of rated power | | Hot roof | 70 °C | 459 W | 463 W | 84.2% of rated power | ## Against the whole database | Measure | YH545W-36MH | YH550W-36MH | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #9,519 | #8,795 | 14,005 | YH550W-36MH leads by 724 places | | Power density | #9,399 | #8,643 | 14,005 | YH550W-36MH leads by 756 places | | Heat behaviour | #10,419 | #10,419 | 14,005 | Tied - the same position in the database | | Weight | #3,095 | #2,721 | 14,005 | YH550W-36MH leads by 374 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #3,521 | #3,146 | 14,005 | YH550W-36MH leads by 375 places | ## Questions ### Which panel is better: IBC Solar YH545W-36MH or IBC Solar YH550W-36MH? According to our database: **IBC Solar YH**550 W**-36MH** has higher module efficiency (**21.28%** vs **21.09%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of IBC Solar YH545W-36MH and IBC Solar YH550W-36MH? **IBC Solar YH**545 W**-36MH** has a module efficiency of **21.09%**, 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 YH545W-36MH use vs IBC Solar YH550W-36MH? **IBC Solar YH**545 W**-36MH** uses **PERC** 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 YH545W-36MH and IBC Solar YH550W-36MH? **IBC Solar YH**545 W**-36MH** 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 YH545W-36MH vs IBC Solar YH540W-36MH](https://comparepv.com/compare/ibc-solar-yh545w-36mh/ibc-solar-yh540w-36mh) - One difference: module efficiency - [IBC Solar YH545W-36MH vs IBC Solar YH720W-33MHD/MH](https://comparepv.com/compare/ibc-solar-yh545w-36mh/ibc-solar-yh720w-33mhd-mh) - 12 differences, the largest is module efficiency - [IBC Solar YH545W-36MH vs IBC Solar YH715W-33MHD/MH](https://comparepv.com/compare/ibc-solar-yh545w-36mh/ibc-solar-yh715w-33mhd-mh) - 12 differences, the largest is module efficiency - [IBC Solar YH545W-36MH vs IBC Solar YH710W-33MHD/MH](https://comparepv.com/compare/ibc-solar-yh545w-36mh/ibc-solar-yh710w-33mhd-mh) - 12 differences, the largest is module efficiency - [IBC Solar YH545W-36MH vs IBC Solar IBC Module White 455 MS-TA1](https://comparepv.com/compare/ibc-solar-yh545w-36mh/ibc-solar-ibc-module-white-455-ms-ta1) - 14 differences, the largest is module efficiency - [IBC Solar YH545W-36MH vs IBC Solar IBC Module Transparent 455 LS-TA2](https://comparepv.com/compare/ibc-solar-yh545w-36mh/ibc-solar-ibc-module-transparent-455-ls-ta2) - 14 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/ibc-solar-yh545w-36mh/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.