--- title: "SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-730 - Solar Panel Comparison | ComparePV" description: "Compare SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-730 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/sunevo-solar-se6-66hbd-720w/sunevo-solar-se6-66hbd-730" updated: 2026-09-11 --- # SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-730 730 leads on the differences that matter The largest is temperature coefficient: 0.040 %/°C better in heat. 10 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 | [SunEvo Solar SE6-66HBD-720W](https://comparepv.com/panel/sunevo-solar-se6-66hbd-720w) | [SunEvo Solar SE6-66HBD-730](https://comparepv.com/panel/sunevo-solar-se6-66hbd-730) | | Manufacturer | SunEvo Solar | SunEvo Solar | | Power | 720 Wp | 730 Wp | | Efficiency | 23.20 % | 23.50 % | | Technology | TOPCon | HJT | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 720W | 730 | Difference | | --- | --- | --- | --- | | Temperature coefficient | -0.280 %/°C | -0.240 %/°C | +0.040 %/°C for 730 | | Product warranty | 12 yrs | 15 yrs | +3 yrs for 730 | | Module efficiency | 23.20 % | 23.50 % | +0.30 pp for 730 | | Cell technology | TOPCon | HJT | TOPCon vs HJT | | Power density | 231.8 Wp/m² | 235.0 Wp/m² | +3.2 Wp/m² for 730 | | Rated power | 720 Wp | 730 Wp | +10 W for 730 | | Open-circuit voltage | 49.28 V | 50.37 V | 1.09 V apart | | Voltage at max power | 41.03 V | 42.32 V | 1.29 V apart | ## Every compared parameter | Parameter | 720W | 730 | | --- | --- | --- | | Rated power | 720 Wp | 730 Wp | | Module efficiency | 23.20 % | 23.50 % | | Power density | 231.8 Wp/m² | 235.0 Wp/m² | | Open-circuit voltage | 49.28 V | 50.37 V | | Voltage at max power | 41.03 V | 42.32 V | | Short-circuit current | 18.55 A | 18.35 A | | Current at max power | 17.55 A | 17.26 A | | Temperature coefficient | -0.280 %/°C | -0.240 %/°C | | Dimensions | 2384x1303x33 mm | 2384x1303x33 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 37.9 kg | 37.9 kg | | Weight per kWp | 52.6 kg/kWp | 51.9 kg/kWp | | Product warranty | 12 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | - | 0.30 %/yr | | Cell technology | TOPCon | HJT | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | Bifacial | Yes | Yes | ## Thirty-year yield Declared first-year losses, with 0.40% a year afterwards assumed for both panels, at 1,200 kWh/kWp a year - **Cumulative output, 720W:** 24,157 kWh - **Cumulative output, 730:** 24,493 kWh - **Gap:** 336 kWh ## Output when hot | Condition | Cell temperature | 720W | 730 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 720 W | 730 W | 100.0% of rated power | | Cool, bright day | 40 °C | 690 W | 704 W | 95.8% of rated power | | Typical summer roof | 55 °C | 660 W | 677 W | 91.6% of rated power | | Hot roof | 70 °C | 629 W | 651 W | 87.4% of rated power | ## Against the whole database | Measure | 720W | 730 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,306 | #716 | 14,005 | 730 leads by 590 places | | Power density | #1,347 | #800 | 14,005 | 730 leads by 547 places | | Heat behaviour | #1,309 | #13 | 14,005 | 730 leads by 1,296 places | | Weight | #6,266 | #5,338 | 14,005 | 730 leads by 928 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #516 | #199 | 14,005 | 730 leads by 317 places | ## Questions ### Which panel is better: SunEvo Solar SE6-66HBD-720W or SunEvo Solar SE6-66HBD-730? According to our database: **SunEvo Solar SE6-66HBD-730** has higher module efficiency (**23.50%** vs **23.20%**); **SunEvo Solar SE6-66HBD-730** tolerates heat better (temp coeff **-0.240%/°C** vs **-0.280%/°C**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of SunEvo Solar SE6-66HBD-720W and SunEvo Solar SE6-66HBD-730? **SunEvo Solar SE6-66HBD-**720 W**** has a module efficiency of **23.20%**, while **SunEvo Solar SE6-66HBD-730** is **23.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does SunEvo Solar SE6-66HBD-720W use vs SunEvo Solar SE6-66HBD-730? **SunEvo Solar SE6-66HBD-**720 W**** uses **TOPCon** cells; **SunEvo Solar SE6-66HBD-730** uses **HJT**. 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 SunEvo Solar SE6-66HBD-720W and SunEvo Solar SE6-66HBD-730? **SunEvo Solar SE6-66HBD-**720 W**** has a **30 years** power warranty; **SunEvo Solar SE6-66HBD-730** 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 SunEvo Solar SE6-66HBD-720W and SunEvo Solar SE6-66HBD-730 bifacial panels? Both **SunEvo Solar SE6-66HBD-**720 W**** and **SunEvo Solar SE6-66HBD-730** 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 - [SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-750W](https://comparepv.com/compare/sunevo-solar-se6-66hbd-720w/sunevo-solar-se6-66hbd-750w) - 9 differences, the largest is module efficiency - [SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-745W](https://comparepv.com/compare/sunevo-solar-se6-66hbd-720w/sunevo-solar-se6-66hbd-745w) - 8 differences, the largest is module efficiency - [SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-740W](https://comparepv.com/compare/sunevo-solar-se6-66hbd-720w/sunevo-solar-se6-66hbd-740w) - 8 differences, the largest is temperature coefficient - [SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-735W](https://comparepv.com/compare/sunevo-solar-se6-66hbd-720w/sunevo-solar-se6-66hbd-735w) - 8 differences, the largest is temperature coefficient - [SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-735](https://comparepv.com/compare/sunevo-solar-se6-66hbd-720w/sunevo-solar-se6-66hbd-735) - 8 differences, the largest is temperature coefficient - [SunEvo Solar SE6-66HBD-720W vs SunEvo Solar SE6-66HBD-730W](https://comparepv.com/compare/sunevo-solar-se6-66hbd-720w/sunevo-solar-se6-66hbd-730w) - 8 differences, the largest is temperature coefficient --- Source: https://comparepv.com/compare/sunevo-solar-se6-66hbd-720w/sunevo-solar-se6-66hbd-730 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.