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Twinsel Electronic Technology Brand review

TSM144-9-550M

550 Wp PERC
ComparePV verdict

Middle of its segment, short guarantee

Rank 8,028 of 14,005
Compare panels Datasheet PDF
Power (Wp)
550
Weak · bottom 15%
Efficiency (%)
21.30
Typical · median 21.29%
Density (Wp/m²)
212.8
Typical · median 212.9
Temp (%/°C)
-0.350
Typical · median -0.350
Weight (kg)
27.8
Typical · median 30.8 kg
Warranty (yrs)
25
Weak · bottom 24%

The TSM144-9 series from Twinsel Electronic Technology is a range of modules designed for installations where maximizing energy production from a given roof or ground area is the priority. They are characterized by a unique 144-cell architecture, which ensures stable operation of the entire system and allows for efficient utilization of modern inverters in residential and commercial installations. The use of PERC monocrystalline technology promotes high efficiency under typical Polish solar conditions, particularly with variable cloud cover and cooler temperatures.

TSM144-9 addresses a common issue of limited mounting space - it helps to "extract" more energy from a single row of modules without requiring extensive structural modifications. For investors, long-term predictability is also important, thanks to clearly defined warranty terms and a linear power warranty. This is an ideal choice for installers and users seeking a universal module for roofs and farms that offers a good balance between energy yield and space utilization.

Ranking

589 panels in the segment PERC 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.30% 21.29% Typical 8,519
Power density 212.8 212.9 Typical 8,643
Temperature coefficient -0.350 -0.350 Typical 10,419
Weight per kWp 50.5 52.7 Typical 3,923
Performance warranty 25 yrs 27 yrs Weak · bottom 24% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 1 caution
Best for

Residential, commercial and utility-scale.

Not ideal for

Owners who want a long output guarantee.

Watch-outs
25 year performance warranty

Bottom 24% of the PERC 550-600 W segment, against a median of 27 yrs.

Notes from the database
  • Efficiency of 21.3% matches the PERC 550-600W median
  • Power density of 212.8 W/m² matches the PERC 550-600W median
  • At -0.35%/°C, hot weather performance is typical for PERC 550-600W panels
  • 27.8 kg weight - 3.0 kg lighter than PERC 550-600W median (30.8 kg), reducing installation effort
  • In the top 61% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 550 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.30 % Typical Segment median 21.29%
Vmpp · Impp 42.20 V · 13.04 A Operating point at max power
Voc · Isc 49.90 V · 13.94 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2279×1134×35 mm · 2.58 m² of roof
Weight 27.8 kg Typical Typical · median 30.8 kg
Cells 144 · PERC Monocrystalline
Coefficient Pmax -0.350 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.275 · 0.045 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 24% · median 27 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
-0.350 %/°C against a segment median of -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Twinsel Electronic Technology TSM144-9-550M 550 W 21.30% -0.350 27.8 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, +3.7 pp, +5 yr warranty
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, +3.5 pp, +5 yr warranty
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, +3.4 pp, +5 yr warranty
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, +3.3 pp, +5 yr warranty
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg -50 W, cooler, +3.2 pp
TSM144-9-535M 535 W 20.70% -0.350 27.8 kg -15 W, -0.6 pp
TSM144-9-540M 540 W 20.90% -0.350 27.8 kg -10 W, -0.4 pp
TSM144-9-545M 545 W 21.10% -0.350 27.8 kg Very close match
TSM144-9-555M 555 W 21.50% -0.350 27.8 kg Very close match
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +100 W, cooler, +3.9 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +95 W, cooler, +3.7 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +90 W, cooler, +3.5 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +85 W, cooler, +3.3 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +80 W, cooler, +3.1 pp

Found 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2542 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty comes with Twinsel TSM144-9 solar panels?
The TSM144-9 series comes with a 12-year product warranty and a 25-year linear power output warranty, meaning performance degrades gradually and predictably over time rather than dropping sharply after a few years. This gives investors a concrete basis for calculating long-term return on the installation, not just a marketing claim from the manufacturer.
Are TSM144-9 panels suitable for a small residential roof?
Yes, this is one of the series' key advantages. Thanks to the 144-cell layout and output up to 555 Wp per module, reaching a 6 kWp system typically requires only around 11 panels instead of 14-15 with older, less efficient models. This lets a larger installation fit on a limited sloped roof area.
Do TSM144-9 modules perform well in cold temperatures and low light?
Yes, the monocrystalline PERC technology used in TSM144-9 delivers good efficiency at lower temperatures and in diffuse light, conditions typical of winter and transitional seasons in Poland. Silicon panels generally lose less power in cold weather than in heat, so a cooler climate is not a drawback and actually supports stable operation.
How does TSM144-9 differ from the manufacturer's bifacial modules?
TSM144-9 is a monofacial module - only the front side generates energy. Unlike a bifacial version, it does not require elevated mounting or a light-reflective surface underneath, so it fits standard roof mounting systems and is simpler to install, though it doesn't capture the extra yield a bifacial panel gets from its rear side.
Is Twinsel Electronic Technology a Tier 1 manufacturer, and is it trustworthy?
Twinsel is not currently listed as a Tier 1 manufacturer, reflecting a smaller production scale and brand recognition compared to top-tier names like JinkoSolar or Trina. This doesn't automatically mean lower quality - it's worth checking the module's certifications (IEC, TUV) and the local distributor's warranty service terms before committing to a larger installation.
How many TSM144-9 panels are needed for a typical 6 kWp system?
At 555 Wp per module, reaching roughly 6 kWp requires 11 TSM144-9 panels (11 x 555 W gives about 6.1 kWp). This is a common configuration for a single-family home with moderate energy use, though the exact panel count also depends on available roof area and tilt angle.
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