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Canadian Solar Brand review

CS3K-300P-AG

300 Wp PERC
ComparePV verdict

Warranty pick, heavy for its output

Rank 13,235 of 14,005
Compare panels Datasheet PDF
Power (Wp)
300
Weak · bottom 3%
Efficiency (%)
18.10
Typical · median 19.00%
Density (Wp/m²)
180.5
Typical · median 190.0
Temp (%/°C)
-0.360
Typical · median -0.360
Weight (kg)
22.5
Weak · 3.5 kg above median
Warranty (yrs)
30
Strong · top 15%

The KuDymond CS3K-P-AG is a polycrystalline module series from Canadian Solar built for projects where reliability under demanding climate conditions comes first. The modules rely on multi busbar (MBB) cell architecture, which reduces current losses at cell interconnections and limits the impact of micro-cracks on overall panel performance. As a result, the series maintains stable energy output even under partial shading or minor mechanical damage to individual cells. The design stands out for its high resistance to snow and wind loads, making it a solid choice for roofs exposed to harsh weather, including heavy winter snowfall. A low nominal module operating temperature (NMOT) combined with a favorable power temperature coefficient translates into better performance at high temperatures, which matters for installations in regions with intense summer sun. A high PTC rating confirms the module's real-world energy yield, not just laboratory-tested efficiency. The KuDymond CS3K-P-AG series works well for both rooftop and ground-mounted installations where investors expect long-term production stability and a predictable return on investment, backed by an extended linear power output warranty and a solid materials and workmanship warranty.

Ranking

286 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 18.10% 19.00% Typical 13,200
Power density 180.5 190.0 Typical 13,196
Temperature coefficient -0.360 -0.360 Typical 12,345
Weight per kWp 75.0 60.0 Weak · bottom 5% 13,607
Performance warranty 30 yrs 25 yrs Strong · top 15% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

6 positive · 4 caution
Best for

Residential, commercial and cold-climate.

Not ideal for

Weight-limited structures.

Strengths
30 year performance warranty

Top 15% of the PERC 300-350 W segment, against a median of 25 yrs.

Watch-outs
75.0 kg per kWp

Bottom 5% of the PERC 300-350 W segment, against a median of 60.0. Ranked 13,607th in the whole database.

What owners get
Long-standing Tier-1 manufacturer

Canadian Solar has been operating since 2001 and holds bankable Tier-1 status, providing high financial credibility and reduced risk for investors financing ground-mount installations.

30-year linear power warranty

The series offers a 30-year linear power degradation warranty, matching the best market offerings and exceeding the standard 25-year warranties typical of most polycrystalline modules from this era.

Multi busbar (MBB) architecture

MBB technology reduces resistive losses at cell interconnections and lessens the impact of microcracks on module output, resulting in more stable energy production under partial shading.

High mechanical load resistance

The module withstands snow loads up to 6000 Pa and wind loads up to 4000 Pa, making it a solid choice for roofs in regions with heavy snowfall and strong winds.

Favorable power temperature coefficient

A Pmax temperature coefficient of -0.36%/°C ensures a relatively smaller power loss at high module operating temperatures, which matters for installations on sun-exposed roofs in summer.

Trade-offs
Production discontinued

The KuDymond CS3K-P-AG series (released in 2019) has been discontinued, meaning limited availability of identical replacement modules for system expansions and more difficult access to warranty service.

Below-average efficiency for the segment

Maximum efficiency of 19.9% is comparable to the competing Waaree ARKA series (19.81%) but clearly trails newer monocrystalline modules such as JA Solar Monocrystalline80 (23.15% at the same 330 Wp power), meaning more roof area is needed for equivalent output.

Older PERC technology, no n-type option

The module relies solely on polycrystalline PERC cells with no bifacial option, while the current Tier-1 market (2025-2026) has shifted toward n-type TOPCon and HJT technologies offering higher efficiency and lower LID degradation.

Notes from the database
  • Efficiency of 18.1% is 1.3pp below the PERC 0-400W median (19.4%)
  • 180.6 W/m² power density is 13.8 W/m² below PERC 0-400W median (194.4 W/m²) - requires larger installation area
  • Temperature coefficient of -0.36%/°C matches the PERC 0-400W median
  • At 22.5 kg, this panel is 2.0 kg heavier than the PERC 0-400W median (20.5 kg) - more demanding for installation crews
  • #13200 for efficiency, #12345 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 300 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 18.10 % Typical Segment median 19.00%
Vmpp · Impp 32.70 V · 9.18 A Operating point at max power
Voc · Isc 39.30 V · 9.65 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1675×992×35 mm · 1.66 m² of roof
Weight 22.5 kg Weak Weak · 3.5 kg above median
Cells 120 · PERC Polycrystalline
Coefficient Pmax -0.360 %/°C Typical median -0.360 of its segment
Coefficient Voc · Isc -0.280 · 0.050 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Strong top 15% · median 25 yrs

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.360 %/°C against a segment median of -0.360
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Canadian Solar CS3K-300P-AG 300 W 18.10% -0.360 22.5 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg +40 W, +2.0 pp, -5 yr warranty
CS3K-330P 330 W 19.90% -0.360 18.5 kg Lighter, +1.8 pp, -5 yr warranty
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg +35 W, +1.8 pp
LNSK-335M 335 W 19.78% -0.360 21.0 kg +35 W, +1.7 pp, -5 yr warranty
CS3K-325P 325 W 19.60% -0.360 18.5 kg Lighter, +1.5 pp, -5 yr warranty
LNSK-330M 330 W 19.49% -0.360 21.0 kg +30 W, +1.4 pp, -5 yr warranty
CS3K-320P 320 W 19.30% -0.360 18.5 kg Lighter, +1.2 pp, -5 yr warranty
CS3K-295P-AG 295 W 17.80% -0.360 22.5 kg -0.3 pp
CS3K-305MS 305 W 18.40% -0.360 18.5 kg Lighter, +0.3 pp, -5 yr warranty
CS3K-310MS 310 W 18.70% -0.360 18.5 kg Lighter, +0.6 pp, -5 yr warranty
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg +100 W, +4.5 pp, +10 yr warranty
LEPV 400 400 W 22.31% -0.290 20.0 kg +100 W, cooler, +4.2 pp
NS-360MH-60 360 W 22.12% -0.290 17.0 kg +60 W, cooler, +4.0 pp
NS-360MH-60 360 W 22.12% -0.290 17.0 kg +60 W, cooler, +4.0 pp
SPR-MAX3-390-COM 390 W 22.10% -0.270 19.0 kg +90 W, +4.0 pp, +10 yr warranty
JS 380~400W 120M6 HJT DG (400W class) 400 W 21.96% -0.240 22.8 kg +100 W, cooler, +3.9 pp

Found 134 panels of the same or similar size to this one, within ±10 mm. See them here Found 231 panels of the same or similar size to this one, within ±25 mm. See them here Found 442 panels of the same or similar size to this one, within ±50 mm. See them here Found 724 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Are Canadian Solar KuDymond CS3K-P-AG panels still available for purchase?
The KuDymond CS3K-P-AG series has been discontinued from Canadian Solar's current production lineup and replaced by newer, higher-power modules. Units may still be available from distributors' existing stock, though availability is limited. Before purchasing, confirm remaining inventory and verify that the seller can still provide full warranty support despite discontinuation.
What warranty comes with CS3K-P-AG panels, and does it cover power degradation?
The manufacturer provides a 12-year product warranty covering materials and workmanship, plus a 30-year linear power output warranty. This means power degradation occurs gradually and predictably over the panel's lifespan rather than dropping sharply after a few years. This warranty structure gives investors confidence in the long-term return of their solar installation.
Is the 330 Wp KuDymond CS3K-P-AG panel suitable for roofs with heavy snow load?
Yes, the KuDymond CS3K-P-AG series is built with enhanced mechanical load tolerance, including resistance to heavy snow and strong wind loads. Thanks to its reinforced frame and multi busbar cell architecture, the panel performs reliably in harsh winter conditions, making it a solid choice for roofs in regions with heavy snowfall.
How does multi busbar (MBB) technology in the CS3K-P-AG differ from panels with fewer busbars?
Multi busbar technology increases the number of thin conductive wires connecting the cells, reducing current losses at cell interconnections and minimizing the impact of microcracks on overall module performance. In practice, this means more stable energy output even under partial shading or minor cell damage, compared to older designs with fewer busbars.
Do CS3K-P-AG panels perform well in high summer temperatures?
Yes, the KuDymond CS3K-P-AG series has a favorable power temperature coefficient and a low nominal module operating temperature (NMOT), resulting in smaller efficiency losses at high temperatures compared to many competing polycrystalline panels. A high PTC rating confirms real-world energy performance, which matters for installations in regions with strong summer irradiance.
Is Canadian Solar a tier 1 manufacturer, and does that guarantee the quality of KuDymond panels?
Yes, Canadian Solar is a globally recognized tier 1 solar panel manufacturer, reflecting financial stability, long-term industry experience, and credible long-term warranties. Headquartered in Canada, the company supplies modules to markets worldwide. Tier 1 status doesn't directly determine technical specifications, but it does increase investment security through greater confidence in warranty fulfillment.
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