--- title: "Canadian Solar CS6R-450T vs Canadian Solar CS6W-600T - Solar Panel Comparison | ComparePV" description: "Compare Canadian Solar CS6R-450T vs Canadian Solar CS6W-600T 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-cs6r-450t/csi-solar-co-ltd-canadian-solar-cs6w-600t" image: "https://comparepv.com/og/compare/panels/csi-solar-co-ltd-canadian-solar-cs6r-450t/csi-solar-co-ltd-canadian-solar-cs6w-600t.png" updated: 2026-09-11 --- # Canadian Solar CS6R-450T vs Canadian Solar CS6W-600T CS6W-600T leads on the differences that matter The largest is rated power: 150 W more power. 11 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Canadian Solar CS6R-450T](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-450t) | [Canadian Solar CS6W-600T](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6w-600t) | | Manufacturer | Canadian Solar | Canadian Solar | | Power | 450 Wp | 600 Wp | | Efficiency | 23.00 % | 23.20 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | CS6R-450T | CS6W-600T | Difference | | --- | --- | --- | --- | | Rated power | 450 Wp | 600 Wp | +150 W for CS6W-600T | | Weight | 21.3 kg | 27.6 kg | -6.3 kg for CS6R-450T | | Open-circuit voltage | 39.80 V | 53.00 V | 13.20 V apart | | Module area | 1.953 m² | 2.583 m² | 0.631 m² apart | | Module efficiency | 23.00 % | 23.20 % | +0.20 pp for CS6W-600T | | Voltage at max power | 32.80 V | 43.90 V | 11.10 V apart | | Cell count | 108 | 144 | 36 cells apart | | Dimensions | 1722x1134x30 mm | 2278x1134x30 mm | 1722x1134x30 mm vs 2278x1134x30 mm | ## Every compared parameter | Parameter | CS6R-450T | CS6W-600T | | --- | --- | --- | | Rated power | 450 Wp | 600 Wp | | Module efficiency | 23.00 % | 23.20 % | | Power density | 230.4 Wp/m² | 232.3 Wp/m² | | Open-circuit voltage | 39.80 V | 53.00 V | | Voltage at max power | 32.80 V | 43.90 V | | Short-circuit current | 14.16 A | 14.18 A | | Current at max power | 13.72 A | 13.68 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1722x1134x30 mm | 2278x1134x30 mm | | Module area | 1.953 m² | 2.583 m² | | Weight | 21.3 kg | 27.6 kg | | Weight per kWp | 47.3 kg/kWp | 46.0 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 | 108 | 144 | | Bifacial | No | No | ## 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, CS6R-450T:** 15,098 kWh - **Cumulative output, CS6W-600T:** 20,131 kWh - **Gap:** 5,033 kWh ## Output when hot | Condition | Cell temperature | CS6R-450T | CS6W-600T | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 450 W | 600 W | 100.0% of rated power | | Cool, bright day | 40 °C | 430 W | 574 W | 95.7% of rated power | | Typical summer roof | 55 °C | 411 W | 548 W | 91.3% of rated power | | Hot roof | 70 °C | 391 W | 522 W | 87.0% of rated power | ## Against the whole database | Measure | CS6R-450T | CS6W-600T | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #1,970 | #1,349 | 14,129 | CS6W-600T leads by 621 places | | Power density | #1,758 | #1,295 | 14,129 | CS6W-600T leads by 463 places | | Heat behaviour | #2,220 | #2,220 | 14,129 | Tied - the same position in the database | | Weight | #1,641 | #954 | 14,129 | CS6W-600T leads by 687 places | | Warranty | #21 | #21 | 14,129 | Tied - the same position in the database | | Overall | #8,470 | #2,899 | 14,129 | CS6W-600T leads by 5,571 places | ## Questions ### Which panel is better: Canadian Solar CS6R-450T or Canadian Solar CS6W-600T? According to our database: **Canadian Solar CS6W-600T** has higher module efficiency (**23.20%** 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 CS6R-450T and Canadian Solar CS6W-600T? **Canadian Solar CS6R-450T** has a module efficiency of **23.00%**, while **Canadian Solar CS6W-600T** is **23.20%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Canadian Solar CS6R-450T use vs Canadian Solar CS6W-600T? **Canadian Solar CS6R-450T** uses **TOPCon** cells; **Canadian Solar CS6W-600T** 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 CS6R-450T and Canadian Solar CS6W-600T? **Canadian Solar CS6R-450T** has a **30 years** power warranty; **Canadian Solar CS6W-600T** 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 - [Canadian Solar CS6R-450T vs Canadian Solar CS6.2-66TM-635](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6r-450t/csi-solar-co-ltd-canadian-solar-cs6-2-66tm-635) - 12 differences, the largest is rated power - [Canadian Solar CS6R-450T vs Canadian Solar CS6.2-66TM-630](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6r-450t/csi-solar-co-ltd-canadian-solar-cs6-2-66tm-630) - 11 differences, the largest is rated power - [Canadian Solar CS6R-450T vs Canadian Solar CS6.2-66TM-625](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6r-450t/csi-solar-co-ltd-canadian-solar-cs6-2-66tm-625) - 10 differences, the largest is rated power - [Canadian Solar CS6R-450T vs Canadian Solar CS6.2-66TM-620](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6r-450t/csi-solar-co-ltd-canadian-solar-cs6-2-66tm-620) - 10 differences, the largest is rated power - [Canadian Solar CS6R-450T vs Canadian Solar CS6.2-66TM-615](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6r-450t/csi-solar-co-ltd-canadian-solar-cs6-2-66tm-615) - 10 differences, the largest is rated power - [Canadian Solar CS6R-450T vs Canadian Solar CS6.2-66TM-610](https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6r-450t/csi-solar-co-ltd-canadian-solar-cs6-2-66tm-610) - 11 differences, the largest is rated power --- Source: https://comparepv.com/compare/csi-solar-co-ltd-canadian-solar-cs6r-450t/csi-solar-co-ltd-canadian-solar-cs6w-600t 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.