--- title: "Canadian Solar CS6.2-66TB-620 vs Canadian Solar CS7N-730TB-AG - Solar Panel Comparison | ComparePV" description: "Compare Canadian Solar CS6.2-66TB-620 vs Canadian Solar CS7N-730TB-AG side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620/csi-solar-co-ltd-canadian-solar-cs7n-730tb-ag" updated: 2026-09-11 --- # Canadian Solar CS6.2-66TB-620 vs Canadian Solar CS7N-730TB-AG CS7N-730TB-AG leads on the differences that matter The largest is rated power: 110 W more power. 11 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Canadian Solar CS6.2-66TB-620](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620) | [Canadian Solar CS7N-730TB-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs7n-730tb-ag) | | Manufacturer | Canadian Solar | Canadian Solar | | Power | 620 Wp | 730 Wp | | Efficiency | 23.00 % | 23.50 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | CS6.2-66TB-620 | CS7N-730TB-AG | Difference | | --- | --- | --- | --- | | Rated power | 620 Wp | 730 Wp | +110 W for CS7N-730TB-AG | | Module efficiency | 23.00 % | 23.50 % | +0.50 pp for CS7N-730TB-AG | | Weight | 32.8 kg | 37.8 kg | -5.0 kg for CS6.2-66TB-620 | | Short-circuit current | 16.08 A | 18.79 A | 2.71 A apart | | Module area | 2.701 m² | 3.106 m² | 0.405 m² apart | | Power density | 229.5 Wp/m² | 235.0 Wp/m² | +5.5 Wp/m² for CS7N-730TB-AG | | Current at max power | 15.06 A | 17.75 A | 2.69 A apart | | Dimensions | 2382x1134x30 mm | 2384x1303x33 mm | 2382x1134x30 mm vs 2384x1303x33 mm | ## Every compared parameter | Parameter | CS6.2-66TB-620 | CS7N-730TB-AG | | --- | --- | --- | | Rated power | 620 Wp | 730 Wp | | Module efficiency | 23.00 % | 23.50 % | | Power density | 229.5 Wp/m² | 235.0 Wp/m² | | Open-circuit voltage | 48.40 V | 49.10 V | | Voltage at max power | 41.20 V | 41.20 V | | Short-circuit current | 16.08 A | 18.79 A | | Current at max power | 15.06 A | 17.75 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 2382x1134x30 mm | 2384x1303x33 mm | | Module area | 2.701 m² | 3.106 m² | | Weight | 32.8 kg | 37.8 kg | | Weight per kWp | 52.9 kg/kWp | 51.8 kg/kWp | | Product warranty | 12 yrs | 12 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | 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 (-0.290 %/°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, CS6.2-66TB-620:** 20,802 kWh - **Cumulative output, CS7N-730TB-AG:** 24,493 kWh - **Gap:** 3,691 kWh ## Output when hot | Condition | Cell temperature | CS6.2-66TB-620 | CS7N-730TB-AG | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 620 W | 730 W | 100.0% of rated power | | Cool, bright day | 40 °C | 593 W | 698 W | 95.7% of rated power | | Typical summer roof | 55 °C | 566 W | 666 W | 91.3% of rated power | | Hot roof | 70 °C | 539 W | 635 W | 87.0% of rated power | ## Against the whole database | Measure | CS6.2-66TB-620 | CS7N-730TB-AG | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,919 | #716 | 14,005 | CS7N-730TB-AG leads by 1,203 places | | Power density | #2,191 | #800 | 14,005 | CS7N-730TB-AG leads by 1,391 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #6,617 | #5,151 | 14,005 | CS7N-730TB-AG leads by 1,466 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #2,525 | #312 | 14,005 | CS7N-730TB-AG leads by 2,213 places | ## Questions ### Which panel is better: Canadian Solar CS6.2-66TB-620 or Canadian Solar CS7N-730TB-AG? According to our database: **Canadian Solar CS7N-730TB-AG** has higher module efficiency (**23.50%** vs **23.00%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Canadian Solar CS6.2-66TB-620 and Canadian Solar CS7N-730TB-AG? **Canadian Solar CS6.2-66TB-620** has a module efficiency of **23.00%**, while **Canadian Solar CS7N-730TB-AG** is **23.50%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Canadian Solar CS6.2-66TB-620 use vs Canadian Solar CS7N-730TB-AG? **Canadian Solar CS6.2-66TB-620** uses **TOPCon** cells; **Canadian Solar CS7N-730TB-AG** 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 Canadian Solar CS6.2-66TB-620 and Canadian Solar CS7N-730TB-AG? **Canadian Solar CS6.2-66TB-620** has a **30 years** power warranty; **Canadian Solar CS7N-730TB-AG** 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 Canadian Solar CS6.2-66TB-620 and Canadian Solar CS7N-730TB-AG bifacial panels? Both **Canadian Solar CS6.2-66TB-620** and **Canadian Solar CS7N-730TB-AG** 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 - [Canadian Solar CS6.2-66TB-620 vs Canadian Solar CS6.2-66TB-630](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-630) - 3 differences, the largest is module efficiency - [Canadian Solar CS6.2-66TB-620 vs Canadian Solar CS6.2-66TB-625](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-625) - The same specification on paper - [Canadian Solar CS6.2-66TB-620 vs Canadian Solar CS6.2-66TB-615](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-615) - One difference: module efficiency - [Canadian Solar CS6.2-66TB-620 vs Canadian Solar CS6.2-66TB-610](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-610) - 3 differences, the largest is module efficiency - [Canadian Solar CS6.2-66TB-620 vs Canadian Solar CS6.2-66TB-605](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-605) - 3 differences, the largest is module efficiency - [Canadian Solar CS6.2-66TB-620 vs Canadian Solar CS6.2-66TB-600](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-600) - 3 differences, the largest is module efficiency --- Source: https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6-2-66tb-620/csi-solar-co-ltd-canadian-solar-cs7n-730tb-ag 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.