--- title: "AIKO AIKO-A805-GRH78Dw vs IBC Solar YH720W-33MHD/MH - Solar Panel Comparison | ComparePV" description: "Compare AIKO AIKO-A805-GRH78Dw vs IBC Solar YH720W-33MHD/MH side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/aiko-aiko-a805-grh78dw/ibc-solar-yh720w-33mhd-mh" updated: 2026-09-11 --- # AIKO AIKO-A805-GRH78Dw vs IBC Solar YH720W-33MHD/MH AIKO-A805-GRH78Dw leads on the differences that matter The largest is module efficiency: 1.92 pp more efficient. 3 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 | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | [IBC Solar YH720W-33MHD/MH](https://comparepv.com/panel/ibc-solar-yh720w-33mhd-mh) | | Manufacturer | AIKO | IBC Solar | | Power | 805 Wp | 720 Wp | | Efficiency | 25.10 % | 23.18 % | | Technology | Back Contact | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | AIKO-A805-GRH78Dw | YH720W-33MHD/MH | Difference | | --- | --- | --- | --- | | Module efficiency | 25.10 % | 23.18 % | +1.92 pp for AIKO-A805-GRH78Dw | | Temperature coefficient | -0.260 %/°C | -0.350 %/°C | +0.090 %/°C for AIKO-A805-GRH78Dw | | Rated power | 805 Wp | 720 Wp | +85 W for AIKO-A805-GRH78Dw | | Power density | 250.6 Wp/m² | 231.8 Wp/m² | +18.8 Wp/m² for AIKO-A805-GRH78Dw | | Product warranty | 15 yrs | 30 yrs | +15 yrs for YH720W-33MHD/MH | | Open-circuit voltage | 59.42 V | 49.82 V | 9.60 V apart | | Module area | 3.212 m² | 3.106 m² | 0.106 m² apart | | Weight | 39.8 kg | 38.0 kg | -1.8 kg for YH720W-33MHD/MH | | Weight per kWp | 49.4 kg/kWp | 52.8 kg/kWp | -3.3 kg/kWp for AIKO-A805-GRH78Dw | | Cell technology | Back Contact | TOPCon | Back Contact vs TOPCon | | Voltage at max power | 49.46 V | 41.52 V | 7.94 V apart | | Short-circuit current | 17.13 A | 18.13 A | 1.00 A apart | | Cell count | 156 | 132 | 24 cells apart | | Current at max power | 16.28 A | 17.34 A | 1.06 A apart | | Dimensions | 2465x1303x33 mm | 2384x1303x33 mm | 2465x1303x33 mm vs 2384x1303x33 mm | ## Every compared parameter | Parameter | AIKO-A805-GRH78Dw | YH720W-33MHD/MH | | --- | --- | --- | | Rated power | 805 Wp | 720 Wp | | Module efficiency | 25.10 % | 23.18 % | | Power density | 250.6 Wp/m² | 231.8 Wp/m² | | Open-circuit voltage | 59.42 V | 49.82 V | | Voltage at max power | 49.46 V | 41.52 V | | Short-circuit current | 17.13 A | 18.13 A | | Current at max power | 16.28 A | 17.34 A | | Temperature coefficient | -0.260 %/°C | -0.350 %/°C | | Dimensions | 2465x1303x33 mm | 2384x1303x33 mm | | Module area | 3.212 m² | 3.106 m² | | Weight | 39.8 kg | 38.0 kg | | Weight per kWp | 49.4 kg/kWp | 52.8 kg/kWp | | Product warranty | 15 yrs | 30 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | - | | Cell technology | Back Contact | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 156 | 132 | | Bifacial | Yes | Yes | ## 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, AIKO-A805-GRH78Dw:** 27,009 kWh - **Cumulative output, YH720W-33MHD/MH:** 24,157 kWh - **Gap:** 2,852 kWh ## Output when hot | Condition | Cell temperature | AIKO-A805-GRH78Dw | YH720W-33MHD/MH | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 805 W | 720 W | 100.0% of rated power | | Cool, bright day | 40 °C | 774 W | 682 W | 94.8% of rated power | | Typical summer roof | 55 °C | 742 W | 644 W | 89.5% of rated power | | Hot roof | 70 °C | 711 W | 607 W | 84.2% of rated power | ## Against the whole database | Measure | AIKO-A805-GRH78Dw | YH720W-33MHD/MH | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #3 | #1,424 | 14,005 | AIKO-A805-GRH78Dw leads by 1,421 places | | Power density | #3 | #1,347 | 14,005 | AIKO-A805-GRH78Dw leads by 1,344 places | | Heat behaviour | #511 | #10,419 | 14,005 | AIKO-A805-GRH78Dw leads by 9,908 places | | Weight | #2,977 | #6,459 | 14,005 | AIKO-A805-GRH78Dw leads by 3,482 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #1 | #24 | 14,005 | AIKO-A805-GRH78Dw leads by 23 places | ## Questions ### Which panel is better: AIKO AIKO-A805-GRH78Dw or IBC Solar YH720W-33MHD/MH? According to our database: **AIKO AIKO-A805-GRH78Dw** has higher module efficiency (**25.10%** vs **23.18%**); **AIKO AIKO-A805-GRH78Dw** tolerates heat better (temp coeff **-0.260%/°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 AIKO AIKO-A805-GRH78Dw and IBC Solar YH720W-33MHD/MH? **AIKO AIKO-A805-GRH78Dw** has a module efficiency of **25.10%**, while **IBC Solar YH**720 W**-33MHD/MH** is **23.18%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does AIKO AIKO-A805-GRH78Dw use vs IBC Solar YH720W-33MHD/MH? **AIKO AIKO-A805-GRH78Dw** uses **Back Contact** cells; **IBC Solar YH**720 W**-33MHD/MH** 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 AIKO AIKO-A805-GRH78Dw and IBC Solar YH720W-33MHD/MH? **AIKO AIKO-A805-GRH78Dw** has a **30 years** power warranty; **IBC Solar YH**720 W**-33MHD/MH** 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. ### Are AIKO AIKO-A805-GRH78Dw and IBC Solar YH720W-33MHD/MH bifacial panels? Both **AIKO AIKO-A805-GRH78Dw** and **IBC Solar YH**720 W**-33MHD/MH** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [AIKO AIKO-A805-GRH78Dw vs AIKO AIKO-A800-GRH78Dw](https://comparepv.com/compare/aiko-aiko-a805-grh78dw/aiko-aiko-a800-grh78dw) - One difference: module efficiency - [AIKO AIKO-A805-GRH78Dw vs AIKO AIKO-A795-GRH78Dw](https://comparepv.com/compare/aiko-aiko-a805-grh78dw/aiko-aiko-a795-grh78dw) - 3 differences, the largest is module efficiency - [AIKO AIKO-A805-GRH78Dw vs AIKO AIKO-A790-GRH78Dw](https://comparepv.com/compare/aiko-aiko-a805-grh78dw/aiko-aiko-a790-grh78dw) - 3 differences, the largest is module efficiency - [AIKO AIKO-A805-GRH78Dw vs AIKO AIKO-A785-GRH78Dw](https://comparepv.com/compare/aiko-aiko-a805-grh78dw/aiko-aiko-a785-grh78dw) - 3 differences, the largest is module efficiency - [AIKO AIKO-A805-GRH78Dw vs AIKO AIKO-A780-GRH78Dw](https://comparepv.com/compare/aiko-aiko-a805-grh78dw/aiko-aiko-a780-grh78dw) - 3 differences, the largest is module efficiency - [AIKO AIKO-A805-GRH78Dw vs AIKO AIKO-A775-GRH78Dw](https://comparepv.com/compare/aiko-aiko-a805-grh78dw/aiko-aiko-a775-grh78dw) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/aiko-aiko-a805-grh78dw/ibc-solar-yh720w-33mhd-mh 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.