--- title: "TN Solar SE6-66HBD-710 vs TN Solar SE6-66HBD-715 - Solar Panel Comparison | ComparePV" description: "Compare TN Solar SE6-66HBD-710 vs TN Solar SE6-66HBD-715 side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/tn-solar-se6-66hbd-710/tn-solar-se6-66hbd-715" updated: 2026-09-11 --- # TN Solar SE6-66HBD-710 vs TN Solar SE6-66HBD-715 Identical on every published parameter All 19 comparable parameters agree. 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 | [TN Solar SE6-66HBD-710](https://comparepv.com/panel/tn-solar-se6-66hbd-710) | [TN Solar SE6-66HBD-715](https://comparepv.com/panel/tn-solar-se6-66hbd-715) | | Manufacturer | TN Solar | TN Solar | | Power | 710 Wp | 715 Wp | | Efficiency | 22.86 % | 23.02 % | | Technology | HJT | HJT | ## Every compared parameter | Parameter | 710 | 715 | | --- | --- | --- | | Rated power | 710 Wp | 715 Wp | | Module efficiency | 22.86 % | 23.02 % | | Power density | 228.6 Wp/m² | 230.2 Wp/m² | | Open-circuit voltage | 50.44 V | 50.59 V | | Voltage at max power | 42.39 V | 42.54 V | | Short-circuit current | 17.55 A | 17.61 A | | Current at max power | 16.75 A | 16.81 A | | Temperature coefficient | -0.260 %/°C | -0.260 %/°C | | Dimensions | 2384x1303x35 mm | 2384x1303x35 mm | | Module area | 3.106 m² | 3.106 m² | | Weight | 38.7 kg | 38.7 kg | | Weight per kWp | 54.5 kg/kWp | 54.1 kg/kWp | | Product warranty | 25 yrs | 25 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.38 %/yr | 0.38 %/yr | | Cell technology | HJT | HJT | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 132 | 132 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.260 %/°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, 710:** 23,896 kWh - **Cumulative output, 715:** 24,064 kWh - **Gap:** 168 kWh ## Output when hot | Condition | Cell temperature | 710 | 715 | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 710 W | 715 W | 100.0% of rated power | | Cool, bright day | 40 °C | 682 W | 687 W | 96.1% of rated power | | Typical summer roof | 55 °C | 655 W | 659 W | 92.2% of rated power | | Hot roof | 70 °C | 627 W | 631 W | 88.3% of rated power | ## Against the whole database | Measure | 710 | 715 | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #2,536 | #1,797 | 14,005 | 715 leads by 739 places | | Power density | #2,474 | #2,018 | 14,005 | 715 leads by 456 places | | Heat behaviour | #511 | #511 | 14,005 | Tied - the same position in the database | | Weight | #8,842 | #8,339 | 14,005 | 715 leads by 503 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #142 | #112 | 14,005 | 715 leads by 30 places | ## Questions ### Which panel is better: TN Solar SE6-66HBD-710 or TN Solar SE6-66HBD-715? According to our database: **TN Solar SE6-66HBD-715** has higher module efficiency (**23.02%** vs **22.86%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of TN Solar SE6-66HBD-710 and TN Solar SE6-66HBD-715? **TN Solar SE6-66HBD-710** has a module efficiency of **22.86%**, while **TN Solar SE6-66HBD-715** is **23.02%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does TN Solar SE6-66HBD-710 use vs TN Solar SE6-66HBD-715? **TN Solar SE6-66HBD-710** uses **HJT** cells; **TN Solar SE6-66HBD-715** 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 TN Solar SE6-66HBD-710 and TN Solar SE6-66HBD-715? **TN Solar SE6-66HBD-710** has a **30 years** power warranty; **TN Solar SE6-66HBD-715** 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 TN Solar SE6-66HBD-710 and TN Solar SE6-66HBD-715 bifacial panels? Both **TN Solar SE6-66HBD-710** and **TN Solar SE6-66HBD-715** 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 - [TN Solar SE6-66HBD-710 vs TN Solar SE6-66HBD-705](https://comparepv.com/compare/tn-solar-se6-66hbd-710/tn-solar-se6-66hbd-705) - The same specification on paper - [TN Solar SE6-66HBD-710 vs TN Solar SE6-66HBD-700](https://comparepv.com/compare/tn-solar-se6-66hbd-710/tn-solar-se6-66hbd-700) - 3 differences, the largest is module efficiency - [TN Solar SE6-66HBD-710 vs TN Solar SE6-66HBD-695](https://comparepv.com/compare/tn-solar-se6-66hbd-710/tn-solar-se6-66hbd-695) - 3 differences, the largest is module efficiency - [TN Solar SE6-66HBD-710 vs TN Solar TN5-54H-390](https://comparepv.com/compare/tn-solar-se6-66hbd-710/tn-solar-tn5-54h-390) - 14 differences, the largest is module efficiency - [TN Solar SE6-66HBD-710 vs TN Solar TN5-54H-385](https://comparepv.com/compare/tn-solar-se6-66hbd-710/tn-solar-tn5-54h-385) - 14 differences, the largest is module efficiency - [TN Solar SE6-66HBD-710 vs TN Solar TN5-54H-380](https://comparepv.com/compare/tn-solar-se6-66hbd-710/tn-solar-tn5-54h-380) - 14 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/tn-solar-se6-66hbd-710/tn-solar-se6-66hbd-715 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.