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Sunket New Energy SKT355M10
Sunket New Energy Brand review

SKT355M10

355 Wp TOPCon
ComparePV verdict

Middle of its segment, short guarantee

Rank 13,084 of 14,005
Compare panels Datasheet PDF
Power (Wp)
355
Weak · bottom 13%
Efficiency (%)
18.20
Typical · median 18.20%
Density (Wp/m²)
181.8
Typical · median 181.8
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
20.5
Typical · median 26.0 kg
Warranty (yrs)
25
Weak · bottom 20%

The SKT345-365M10 series panels are based on advanced M10-type monocrystalline cells, which represent an optimal balance between modern architecture and ease of installation on standard roof surfaces. A key distinguishing feature of this line is the use of Half-Cut Cell technology, which significantly reduces energy losses resulting from internal resistance and improves the efficiency of the entire system in partial shading conditions. Thanks to the split cells, the modules operate at a lower temperature, which directly translates into their longer lifespan and yield stability on hot days. The use of multi-layer Multi-Busbar (MBB) technology significantly shortens the current flow path, which not only increases efficiency but also effectively minimizes the risk of micro-cracks in the silicon structure. This series was designed for private investors seeking an elegant Full Black design and high power density in limited spaces. The robust frame construction guarantees increased resistance to extreme snow and wind loads, which sets these products apart from less durable competitor solutions. By choosing these panels, the user receives a product highly resistant to potential-induced degradation (PID) that perfectly suits the specifics of the Polish climate, offering maximum fire safety and reliability for decades of operation.

Ranking

112 panels in the segment TOPCon 350-400 W
Metric This panel Median Position in segment Overall rank
Module efficiency 18.20% 18.20% Typical 13,178
Power density 181.8 181.8 Typical 13,162
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 57.7 68.9 Typical 11,391
Performance warranty 25 yrs 30 yrs Weak · bottom 20% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 1 caution
Best for

Residential, shaded-installations and cold-climate.

Not ideal for

Owners who want a long output guarantee.

Watch-outs
25 year performance warranty

Bottom 20% of the TOPCon 350-400 W segment, against a median of 30 yrs.

Notes from the database
  • Efficiency of 18.2% is 2.2pp above the TOPCon 0-400W median (16.0%)
  • At 181.8 W/m² power density, this panel generates 22.0 W/m² more per unit area than TOPCon 0-400W median (159.8 W/m²)
  • Temperature coefficient of -0.29%/°C matches the TOPCon 0-400W median
  • Weight of 20.5 kg (3.0 kg below TOPCon 0-400W median of 23.5 kg) allows easier transport and roof mounting
  • In the top 94% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 355 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 18.20 % Typical Segment median 18.20%
Vmpp · Impp 33.37 V · 10.64 A Operating point at max power
Voc · Isc 38.68 V · 11.49 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 20.5 kg Typical Typical · median 26.0 kg
Cells 108 · TOPCon Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 20% · median 30 yrs
End-of-warranty output 89.4 % Equals 310 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Sunket New Energy in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 355 Wp appear here. The rest cover the whole series.

Sunket N Type Linear Warranty Sunket N Type Linear Warranty Whole series

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
-0.290 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Sunket New Energy SKT355M10 355 W 18.20% -0.290 20.5 kg You are here
NS-330MH-80 330 W 23.15% -0.290 15.0 kg -25 W, lighter, +4.9 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg -25 W, lighter, +4.9 pp
GKA210M320W 320 W 23.00% - 16.2 kg Lighter, +4.8 pp, +5 yr warranty
GKA210M340W 340 W 23.00% - 16.2 kg Lighter, +4.8 pp, +5 yr warranty
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +4.8 pp, +5 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +4.8 pp, +5 yr warranty
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg +45 W, +4.8 pp, +5 yr warranty
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg +45 W, +4.8 pp, +5 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +4.8 pp, +5 yr warranty
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg +45 W, +4.4 pp, +15 yr warranty
SKT345M10 345 W 17.70% -0.290 20.5 kg -10 W, -0.5 pp
SKT350M10 350 W 17.90% -0.290 20.5 kg -0.3 pp
SKT360M10 360 W 18.40% -0.290 20.5 kg Very close match
SKT365M10 365 W 18.70% -0.290 20.5 kg +10 W, +0.5 pp
SKT385M10 385 W 19.80% -0.350 23.4 kg Hotter, +1.6 pp, +5 yr warranty
SKT390M10 390 W 20.00% -0.350 23.4 kg Hotter, +1.8 pp, +5 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +155 W, +6.8 pp, +5 yr warranty

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
How does the TOPCon technology in the SKT345~365M10 series differ from standard PERC cells?
TOPCon (Tunnel Oxide Passivated Contact) cells feature an ultrathin silicon oxide layer that significantly reduces carrier recombination, resulting in higher module efficiency and slower long-term degradation compared to conventional PERC cells. The SKT345~365M10 series reaches up to 365 Wp precisely because of this architecture, delivering better energy yield per square meter of roof space.
What warranties come with the Sunket SKT345~365M10 panels?
Sunket provides a 12-year product warranty covering manufacturing defects and material failures. In addition, a 25-year linear power output warranty guarantees that the module will not degrade below the specified power curve. For residential prosumer installations, this ensures predictable yield throughout the entire loan or subsidy repayment period.
Are the SKT345~365M10 Full Black panels a good fit for sloped roofs with limited surface area?
Yes, the M10 Full Black variant is particularly well suited for sloped roofs where both aesthetics and power density matter. The all-black frame and backsheet blend with most roofing materials, while the M10 cell format allows efficient use of available roof area. The half-cut cell layout also limits losses caused by partial shading from chimneys or dormers.
How do the Sunket SKT345~365M10 panels perform during winter and in the cold climate typical of Poland?
PV panels, including the TOPCon-based SKT345~365M10 series, generate electricity year-round. Low temperatures actually benefit silicon cell efficiency, since output power increases as operating temperature drops. The reinforced frame is rated for elevated snow and wind loads, meeting the structural requirements of Central European winter conditions.
Are the SKT345~365M10 panels resistant to Potential Induced Degradation (PID), and why does it matter for Polish installations?
Yes, the SKT345~365M10 series is engineered with high PID resistance. PID can reduce module output by over ten percent within a few years, especially in systems where the inverter operates with a grounded pole — a common configuration in Polish residential installations. Strong PID resistance directly protects long-term energy yield and the overall return on investment.
Does the Multi-Busbar (MBB) technology in the SKT345~365M10 series genuinely improve panel durability?
Yes. MBB technology distributes current flow across a larger number of thin conductors, shortening the electrical path and reducing mechanical stress within each cell. The result is significantly lower risk of microcracks during shipping, installation, and long-term operation. For the end user, this translates into more stable power output across the full 25-year power warranty period.
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