--- title: "IBC Solar YH215W-21M vs IBC Solar YH550W-36MH - Solar Panel Comparison | ComparePV" description: "Compare IBC Solar YH215W-21M 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-yh215w-21m/ibc-solar-yh550w-36mh" updated: 2026-09-11 --- # IBC Solar YH215W-21M vs IBC Solar YH550W-36MH YH550W-36MH leads on the differences that matter The largest is rated power: 335 W more power. 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 YH215W-21M](https://comparepv.com/panel/ibc-solar-yh215w-21m) | [IBC Solar YH550W-36MH](https://comparepv.com/panel/ibc-solar-yh550w-36mh) | | Manufacturer | IBC Solar | IBC Solar | | Power | 215 Wp | 550 Wp | | Efficiency | 20.83 % | 21.28 % | | Technology | PERC | PERC | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | YH215W-21M | YH550W-36MH | Difference | | --- | --- | --- | --- | | Rated power | 215 Wp | 550 Wp | +335 W for YH550W-36MH | | Weight | 10.8 kg | 27.0 kg | -16.2 kg for YH215W-21M | | Module efficiency | 20.83 % | 21.28 % | +0.45 pp for YH550W-36MH | | Open-circuit voltage | 28.85 V | 50.10 V | 21.25 V apart | | Short-circuit current | 9.13 A | 13.90 A | 4.77 A apart | | Module area | 1.032 m² | 2.584 m² | 1.552 m² apart | | Power density | 208.3 Wp/m² | 212.8 Wp/m² | +4.5 Wp/m² for YH550W-36MH | | Temperature coefficient | -0.340 %/°C | -0.350 %/°C | +0.010 %/°C for YH215W-21M | | Voltage at max power | 24.78 V | 42.13 V | 17.35 V apart | | Current at max power | 8.68 A | 13.06 A | 4.38 A apart | | Cell count | 42 | 144 | 102 cells apart | | Dimensions | 1545x668x30 mm | 2279x1134x30 mm | 1545x668x30 mm vs 2279x1134x30 mm | ## Every compared parameter | Parameter | YH215W-21M | YH550W-36MH | | --- | --- | --- | | Rated power | 215 Wp | 550 Wp | | Module efficiency | 20.83 % | 21.28 % | | Power density | 208.3 Wp/m² | 212.8 Wp/m² | | Open-circuit voltage | 28.85 V | 50.10 V | | Voltage at max power | 24.78 V | 42.13 V | | Short-circuit current | 9.13 A | 13.90 A | | Current at max power | 8.68 A | 13.06 A | | Temperature coefficient | -0.340 %/°C | -0.350 %/°C | | Dimensions | 1545x668x30 mm | 2279x1134x30 mm | | Module area | 1.032 m² | 2.584 m² | | Weight | 10.8 kg | 27.0 kg | | Weight per kWp | 50.4 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 | 42 | 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, YH215W-21M:** 7,214 kWh - **Cumulative output, YH550W-36MH:** 18,454 kWh - **Gap:** 11,240 kWh ## Output when hot | Condition | Cell temperature | YH215W-21M | YH550W-36MH | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 215 W | 550 W | 100.0% of rated power | | Cool, bright day | 40 °C | 204 W | 521 W | 94.8% of rated power | | Typical summer roof | 55 °C | 193 W | 492 W | 89.5% of rated power | | Hot roof | 70 °C | 182 W | 463 W | 84.2% of rated power | ## Against the whole database | Measure | YH215W-21M | YH550W-36MH | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #10,433 | #8,795 | 14,005 | YH550W-36MH leads by 1,638 places | | Power density | #10,438 | #8,643 | 14,005 | YH550W-36MH leads by 1,795 places | | Heat behaviour | #8,778 | #10,419 | 14,005 | YH215W-21M leads by 1,641 places | | Weight | #3,740 | #2,721 | 14,005 | YH550W-36MH leads by 1,019 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #12,267 | #3,146 | 14,005 | YH550W-36MH leads by 9,121 places | ## Questions ### Which panel is better: IBC Solar YH215W-21M or IBC Solar YH550W-36MH? According to our database: **IBC Solar YH**550 W**-36MH** has higher module efficiency (**21.28%** vs **20.83%**); **IBC Solar YH**215 W**-21M** tolerates heat better (temp coeff **-0.340%/°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 YH215W-21M and IBC Solar YH550W-36MH? **IBC Solar YH**215 W**-21M** has a module efficiency of **20.83%**, 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 YH215W-21M use vs IBC Solar YH550W-36MH? **IBC Solar YH**215 W**-21M** 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 YH215W-21M and IBC Solar YH550W-36MH? **IBC Solar YH**215 W**-21M** 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 YH215W-21M vs IBC Solar YH210W-21M](https://comparepv.com/compare/ibc-solar-yh215w-21m/ibc-solar-yh210w-21m) - 2 differences, the largest is module efficiency - [IBC Solar YH215W-21M vs IBC Solar YH205W-21M](https://comparepv.com/compare/ibc-solar-yh215w-21m/ibc-solar-yh205w-21m) - 4 differences, the largest is 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 YH215W-21M vs IBC Solar YH720W-33MHD/MH](https://comparepv.com/compare/ibc-solar-yh215w-21m/ibc-solar-yh720w-33mhd-mh) - 15 differences, the largest is module efficiency - [IBC Solar YH215W-21M vs IBC Solar YH715W-33MHD/MH](https://comparepv.com/compare/ibc-solar-yh215w-21m/ibc-solar-yh715w-33mhd-mh) - 15 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/ibc-solar-yh215w-21m/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.