--- title: "Canadian Solar CS6R-445H-AG 445W Solar Panel - Specs & Review | ComparePV" description: "Canadian Solar CS6R-445H-AG 445W solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-445h-ag" updated: 2026-09-11 --- # Canadian Solar CS6R-445H-AG Efficiency leader, weak in heat 113 panels in the segment HJT 400-450 W ## Identity - **Manufacturer:** Canadian Solar - **Model:** CS6R-445H-AG - **Series:** HiHero - **Rated power:** 445 W - **Cell technology:** HJT - **Bifacial:** yes ## How it compares Compared against segment HJT 400-450 W (113 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 445 W | 435 W | Strong - top 10% | | | Module efficiency | 22.80% | 22.20% | Strong - top 6% | 2,714 | | Power density | 227.9 | 221.6 | Strong - top 6% | 2,790 | | Temperature coefficient | -0.260 | -0.240 | Weak - bottom 23% | 511 | | Weight (kg) | 23.0 kg | 23.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.80% | 22.20% | Strong - top 6% | 2,714 | | Power density | 227.9 | 221.6 | Strong - top 6% | 2,790 | | Temperature coefficient | -0.260 | -0.240 | Weak - bottom 23% | 511 | | Weight per kWp | 51.7 | 52.4 | Typical | 5,056 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **22.80% module efficiency** - Top 6% of the HJT 400-450 W segment, against a median of 22.20%. Ranked 2,714th in the whole database. - **227.9 watts per square metre** - Top 6% of the HJT 400-450 W segment, against a median of 221.6. Ranked 2,790th in the whole database. ### Watch out for - **-0.260 %/°C temperature coefficient** - Bottom 23% of the HJT 400-450 W segment, against a median of -0.240. - **Best for:** Residential, commercial and hot-climate. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 34.00 V - **Current at Pmax (Imp):** 13.11 A - **Open-circuit voltage (Voc):** 40.60 V - **Short-circuit current (Isc):** 13.53 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.260 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 41 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** HJT - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 23.0 kg - **Area:** 1.95 m2 - **Power density:** 227.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 88.8 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.35 % - **Output after 30 years:** 395 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2714 of 14005 | | Power density | 2790 of 14005 | | Temperature coefficient | 511 of 14005 | | Weight | 5056 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Best-in-class temperature coefficient** - The Pmax temperature coefficient is -0.26%/°C, compared to -0.34%/°C for standard PERC modules and -0.29 to -0.30%/°C for TOPCon. This translates to real-world power losses approximately 20–23% lower at a cell temperature of 75°C — an advantage that, under Polish summer conditions, can yield an additional 3–5% in annual energy output relative to PERC technology. - **Module efficiency up to 22.8%** - The series outperforms all three peer comparables — SunEvo SE6-46SC (21.4%), Solitek SOLRIF D Satin (22.06%), and Q-Cells Q.TRON BLACK (22.3%) — making HiHero the highest-efficiency series in the comparison and enabling greater power output from the same roof area. - **No LID/LeTID and degradation ≤0.35%/year** - HJT N-type cells exhibit no light-induced degradation (LID) or light and elevated temperature degradation (LeTID). Annual degradation after the first year is ≤0.35%, versus a typical ≤0.40–0.45% for TOPCon modules — meaning approximately 89.8% of rated power is retained after 30 years, assuming a linear degradation curve. - **Bifacial design with a 30-year power warranty** - Dual-side energy harvesting delivers an estimated bifacial gain of 5–15%, depending on ground albedo (light gravel, EPDM membrane). Combined with a 30-year linear power warranty, the series stands apart from all peer comparables — none of the compared models simultaneously offer bifacial capability and warranty coverage of this length. - **BNEF Tier-1 manufacturer, 61,000 MW/year capacity** - Canadian Solar has maintained bankable Tier-1 BloombergNEF status continuously for many years and appears on the Q1 2026 list, with an annual manufacturing capacity of approximately 61,000 MW. This substantially reduces the risk of manufacturer warranty default over a long operational lifetime. ## Cons - **HJT premium pricing vs. TOPCon** - At the wholesale level, HJT modules are priced at approximately $0.14–0.16/W versus $0.11–0.13/W for TOPCon — a premium of roughly 15–30%. For a typical 10 kWp residential system, the cost difference relative to comparable Tier-1 TOPCon modules is approximately $700–1,500, extending the simple payback period by roughly 0.5–1 year under Polish irradiation conditions. - **15-year product warranty** - The stated product warranty is 15 years, while select premium manufacturers — such as REC Alpha Pure-R (25 years) and Q-Cells Q.TRON BLACK (25 years) — offer substantially longer coverage against material and workmanship defects. For installations on hard-to-access industrial rooftops, this shortens the window of full service protection. ## About this series The Canadian Solar HiHero series utilizes groundbreaking **HJT heterojunction** technology, which redefines efficiency standards in modern photovoltaic systems. Thanks to the unique combination of crystalline silicon with amorphous layers, these modules effectively eliminate the common problem of light-induced degradation and minimize the negative impact of high temperatures on electricity production. This is the optimal solution for investors who expect **maximum energy yield** from limited roof space, while maintaining the highest aesthetics of the installation. HiHero panels stand out with one of the lowest temperature coefficients on the market, which makes them work extremely efficiently even on the hottest days, when competing products lose their nominal power. The use of advanced **N-type cells** guarantees users long-term stability of parameters and exceptional durability, which directly translates into a much faster return on investment costs. Unlike traditional modules, this series offers above-average **resistance to micro-cracks** and mechanical loads, ensuring operational safety throughout the entire warranty period. By choosing HiHero, you are opting for future technology that effectively solves the problem of energy losses in difficult weather conditions, offering **innovation and uncompromising reliability** for the most demanding residential and business projects. ## Notable figures - At 22.8% efficiency, this panel is 0.6pp above typical \*\*HJT 400-450W\*\* modules (median: 22.2%) - At 227.9 W/m² power density, this panel generates 6.3 W/m² more per unit area than \*\*HJT 400-450W\*\* median (221.6 W/m²) - -0.26%/°C temperature coefficient - 0.02pp worse than \*\*HJT 400-450W\*\* median (-0.24%/°C), expect higher hot weather losses - #2714 for efficiency, #511 for temperature performance out of 14005 panels ## Questions ### What is the HJT technology used in Canadian Solar HiHero panels, and does it genuinely differ from conventional solar panels? Yes, the difference is significant. HJT (heterojunction) technology combines a crystalline N-type silicon cell with thin layers of amorphous silicon. The result is higher conversion efficiency, a very low temperature coefficient (approximately -0.26%/°C), and virtually zero light-induced degradation (LID). In practice, this translates to greater energy output throughout the year — particularly during summer months and on overcast days — compared to standard monocrystalline PERC modules. ### What warranty does the Canadian Solar HiHero series carry, and what exactly does it cover? The HiHero series comes with a 15-year product warranty covering materials and workmanship, as well as a 30-year linear power output warranty. The power warranty guarantees that after 30 years the panel will retain at least 87.4% of its nominal power output, with annual degradation not exceeding 0.35% after the first year. This represents one of the strongest warranty offerings available in the premium panel segment on the market. ### Does the Canadian Solar HiHero 445W panel perform efficiently during summer when temperatures are extremely high? Yes, and this is one of the key advantages of the HiHero series. Thanks to HJT technology, the temperature coefficient is approximately -0.24 to -0.26%/°C, whereas typical PERC panels exhibit -0.35%/°C or higher. At a cell temperature of 70°C, the HiHero loses approximately 12% of its nominal power output, while a PERC panel loses more than 17%. During hot Polish summers, this difference translates directly into measurable additional kilowatt-hours on the energy bill. ### What does it mean that the HiHero panel is bifacial, and how much additional energy can be harvested from the rear side? Bifacial means the panel generates power from both sides. The rear side of the HiHero achieves a bifaciality factor of up to approximately 95%, which in practice means that with favorable ground albedo — such as light-colored gravel, white roofing membrane, or snow — the module can generate 5–15% more energy than its nominal power rating suggests. This gain is, however, strongly dependent on the tilt angle and the reflectivity of the surface beneath the installation. ### Are Canadian Solar HiHero panels suitable for a small roof where maximizing power output per unit area is a priority? Yes, the HiHero series is one of the better solutions for space-constrained roof installations. The 445 Wp module achieves an efficiency in the range of 21–22%, placing it among the top-performing products on the market. This translates to more kilowatts from the same number of square meters compared to lower-cost models. For an installer or homeowner with limited roof space, the difference between HJT and standard PERC technology can amount to fitting one additional panel within the same footprint. ### Is Canadian Solar a reliable manufacturer, and can the company be trusted when purchasing HiHero panels? Canadian Solar is a Tier-1 manufacturer according to BNEF rankings, headquartered in Canada with production facilities on a global scale. Its presence in Poland is confirmed by numerous distributors, and the company consistently appears in rankings of the largest and most financially stable photovoltaic module manufacturers. Warranties are issued directly by the manufacturer, which is a material consideration for investment security given a 30-year power output commitment. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/CS-Datasheet-HiHero-CS6R-H-AG-v26-EN-15y-product-warranty-d6d6d9b734d4.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, lighter, +2.0 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, lighter, +1.7 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, lighter, +1.7 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, lighter, +1.5 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, lighter, +1.5 pp | | [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, cooler, +1.5 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, lighter, +1.5 pp | | [Canadian Solar CS6R-395MS](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-395ms) | 395 W | -50 W, hotter, -2.6 pp | | [Canadian Solar CS6R-400MS](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-400ms) | 400 W | Hotter, -2.3 pp, -5 yr warranty | | [Canadian Solar CS6R-405MS](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-405ms) | 405 W | Hotter, -2.1 pp, -5 yr warranty | | [Canadian Solar CS6R-410MS](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-410ms) | 410 W | Hotter, -1.8 pp, -5 yr warranty | | [Canadian Solar CS6R-415MS](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-415ms) | 415 W | Hotter, -1.5 pp, -5 yr warranty | | [Canadian Solar CS6R-420H-AG](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-420h-ag) | 420 W | -25 W, -1.3 pp | | [Canadian Solar CS6R-425T](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-425t) | 425 W | -20 W, hotter, -1.0 pp | | [Canadian Solar CS6R-430T](https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-430t) | 430 W | Hotter, lighter, -0.8 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/csi-solar-co-ltd-canadian-solar-cs6r-445h-ag Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.