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Twinsel Electronic Technology Brand review

TSM132-8-685BHDG

685 Wp HJT Bifacial 85%
ComparePV verdict

Solid all-round for its segment

Rank 1,704 of 14,005
Compare panels Datasheet PDF
Power (Wp)
685
Typical for its class
Efficiency (%)
22.10
Typical · median 22.20%
Density (Wp/m²)
220.5
Typical · median 222.1
Temp (%/°C)
-0.240
Typical · median -0.240
Weight (kg)
38.5
Typical · median 38.5 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Twinsel Electronic Technology 210 Heterojunction Module series panels are an advanced solution based on HJT cell technology, which effectively combines the advantages of crystalline and amorphous silicon. Thanks to the use of 210 mm silicon wafers, these modules offer significantly higher power density than standard market solutions, allowing for better utilization of available space. A key advantage of the series is its exceptionally low temperature coefficient, ensuring the panels maintain high efficiency even on hot days, minimizing thermal energy losses. The bifacial design enables energy generation from both sides of the module by utilizing light reflected from the ground, which is particularly important in ground-mounted installations and on roofs with light-colored coverings. This series completely eliminates light-induced degradation (LID) and potential-induced degradation (PID) issues, guaranteeing investors long-term yield stability. It is an ideal choice for those seeking maximum efficiency from limited roof area or LCOE cost optimization in large farm projects. They stand out from the competition due to an innovative approach to connecting cells with seamless technology, which reduces mechanical stress and significantly increases the lifespan of the entire system in demanding Polish weather conditions.

Ranking

61 panels in the segment HJT 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.10% 22.20% Typical 6,012
Power density 220.5 222.1 Typical 6,208
Temperature coefficient -0.240 -0.240 Typical 13
Weight per kWp 56.2 55.7 Typical 10,487
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 0 caution
Notes from the database
  • At 22.1% efficiency, this panel is on par with typical HJT 650-700W modules
  • At 220.5 W/m² power density, roof space requirements are typical for HJT 650-700W panels
  • Temperature coefficient of -0.24%/°C matches the HJT 650-700W median
  • 85% bifaciality enables rear-side power generation, boosting yield by 4-13% on reflective surfaces
  • In the top 43% for efficiency among all HJT panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 685 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.10 % Typical Segment median 22.20%
Vmpp · Impp 41.56 V · 16.50 A Operating point at max power
Voc · Isc 49.56 V · 17.56 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2384×1303×35 mm · 3.11 m² of roof
Weight 38.5 kg Typical Typical · median 38.5 kg
Cells 132 · HJT Monocrystalline
Bifaciality 85 % Rear output as a share of front
Coefficient Pmax -0.240 %/°C Typical median -0.240 of its segment
Coefficient Voc · Isc -0.220 · 0.047 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 90.8 % Equals 622 W guaranteed

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
-
With bifacial gain
-

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

Heat losses
-0.240 %/°C against a segment median of -0.240
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Twinsel Electronic Technology TSM132-8-685BHDG 685 W 22.10% -0.240 38.5 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg -35 W, lighter, +3.1 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Hotter, lighter, +3.1 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Hotter, lighter, +2.9 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg -40 W, lighter, +2.9 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg Hotter, lighter, +2.9 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg Hotter, lighter, +2.8 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Hotter, lighter, +2.7 pp
TSM132-8-675-700BHDG (675W variant) 675 W 21.90% -0.240 38.5 kg -10 W, -0.2 pp
TSM132-8-675-700BHDG (680W variant) 680 W 22.10% -0.240 38.5 kg Very close match
TSM132-8-675-700BHDG (690W variant) 690 W 22.20% -0.240 38.5 kg Very close match
TSM132-8-675-700BHDG (695W variant) 695 W 22.40% -0.240 38.5 kg +10 W, +0.3 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +120 W, hotter, +3.0 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +115 W, hotter, +2.8 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +110 W, hotter, +2.7 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +105 W, hotter, +2.5 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +75 W, hotter, +2.4 pp

Found 1390 panels of the same or similar size to this one, within ±10 mm. See them here Found 1400 panels of the same or similar size to this one, within ±25 mm. See them here Found 1400 panels of the same or similar size to this one, within ±50 mm. See them here Found 1432 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
How does HJT technology in the Twinsel 210 Heterojunction Module series differ from standard PERC or TOPCon cells?
HJT (heterojunction) cells combine a crystalline silicon layer with thin amorphous silicon layers, reducing carrier recombination and boosting efficiency compared to PERC. Unlike TOPCon, HJT has a lower temperature coefficient and a symmetrical structure, allowing the panel to perform well on both sides. In the Twinsel 210 series, this translates into higher energy yield per unit of roof area.
What warranty comes with the Twinsel 210 Heterojunction Module panels?
The manufacturer provides a 12-year product warranty covering material and workmanship defects, plus a 30-year power performance warranty. This means the module should retain a guaranteed percentage of its original rated power over three decades, outperforming the standard 25-year power warranties typically offered with PERC technology.
Are the bifacial Twinsel 210 HJT panels suitable for ground-mount or flat-roof installations?
Yes, the glass-glass bifacial design generates additional energy from the rear side of the module using light reflected off the ground surface, which works best on ground-mount structures or flat roofs with light-colored surfaces such as gravel or PVC membrane. On sloped roofs with dark shingles, the bifacial gain will be smaller, but the panel will still operate normally on its front side.
Do the Twinsel 210 Heterojunction panels perform well in high summer temperatures?
Yes, this is one of the key advantages of the HJT technology used in this series. A low temperature coefficient means the panel loses less power as cell temperature rises compared to PERC or polycrystalline modules. In practice, this results in more stable energy output on hot days and lower losses relative to competing products on the market.
Is Twinsel Electronic Technology a Tier 1 manufacturer, and is it worth buying panels outside that list?
Twinsel does not currently appear on the Bloomberg NEF Tier 1 manufacturer list, which mainly reflects the scale of bank financing rather than product quality itself. The company has operated since 2011 and specializes in HJT cell production. When purchasing, it is worth focusing on warranty terms, certifications (IEC, TÜV), and distributor reliability rather than Tier 1 status alone.
What is the maximum power output of a single panel in the Twinsel 210 Heterojunction Module series?
Panels in this series reach a maximum power of up to 700 Wp, based on a large-format module with 132 half-cut cells and 210 mm wafers. This high per-panel output reduces the number of modules needed to reach a target system size, lowering installation costs and the number of connections in the system.
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