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TCL Zhonghuan Brand review

HSM-ND66-GK725

725 Wp N-type Bifacial 80%
ComparePV verdict

Space saver, no clear weak spot

Rank 266 of 14,005
Compare panels Datasheet PDF
Power (Wp)
725
Strong · top 11%
Efficiency (%)
23.30
Strong · top 11%
Density (Wp/m²)
233.4
Strong · top 11%
Temp (%/°C)
-0.280
Strong · top 19%
Weight (kg)
38.2
Typical · median 38.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The TCL Zhonghuan G12-66P N-type Bifacial Double Glass Module series sets new standards in efficiency thanks to the use of large-format G12 silicon wafers and advanced N-type technology. These modules effectively eliminate the problem of light-induced degradation, which translates into a significantly longer lifespan and more stable energy yield compared to traditional P-type panels. The use of a bifacial double glass construction allows for efficient additional energy harvesting from both sides of the module, which is crucial in ground-mounted installations and on surfaces with a high light reflection coefficient. As a result, investors can count on a faster return on investment, especially in demanding large-scale and industrial projects. These panels are distinguished by excellent resistance to harsh weather conditions, which guarantees exceptional mechanical durability and reliability for decades. The innovative N-type cell architecture also ensures better performance in low light and a more favorable temperature coefficient. This is a solution dedicated to professionals seeking maximum power density while simultaneously reducing total BOS system costs. By choosing these modules, you gain the certainty of stable operation and a clear technological advantage over standard solutions currently available on the Polish photovoltaic market.

Ranking

90 panels in the segment N-type 700-750 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.30% 22.88% Strong · top 11% 1,017
Power density 233.4 228.6 Strong · top 11% 936
Temperature coefficient -0.280 -0.290 Strong · top 19% 1,309
Weight per kWp 52.7 53.5 Typical 6,337
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

3 positive · 0 caution
Best for

Utility-scale, commercial and shaded-installations.

Strengths
233.4 watts per square metre

Top 11% of the N-type 700-750 W segment, against a median of 228.6.

23.30% module efficiency

Top 11% of the N-type 700-750 W segment, against a median of 22.88%.

-0.280 %/°C temperature coefficient

Top 19% of the N-type 700-750 W segment, against a median of -0.290.

Notes from the database
  • At 23.3% efficiency, this panel is on par with typical N-type 700-750W modules
  • At 233.4 W/m² power density, this panel generates 4.8 W/m² more per unit area than N-type 700-750W median (228.6 W/m²)
  • At -0.28%/°C, hot weather performance is typical for N-type 700-750W panels
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
  • In the top 7% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 725 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.30 % Strong Segment median 22.88%
Vmpp · Impp 41.27 V · 17.57 A Operating point at max power
Voc · Isc 49.36 V · 18.60 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2384×1303×33 mm · 3.11 m² of roof
Weight 38.2 kg Typical Typical · median 38.0 kg
Cells 132 · N-type Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.280 %/°C Strong top 19% of its segment
Coefficient Voc · Isc -0.240 · 0.045 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 634 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by TCL Zhonghuan in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 725 Wp appear here. The rest cover the whole series.

Guaranteed Power Output vs. Years (Linear Degradation Curve) Guaranteed Power Output vs. Years (Linear Degradation Curve) 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
-
With bifacial gain
-

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

Heat losses
-0.280 %/°C against a segment median of -0.290
-
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
TCL Zhonghuan HSM-ND66-GK725 725 W 23.30% -0.280 38.2 kg You are here
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg -45 W, lighter, +1.9 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg -50 W, lighter, +1.7 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg -25 W, lighter, +1.7 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg -30 W, lighter, +1.6 pp
AIKO-A690-MAE78Dw 690 W 24.70% -0.260 34.5 kg -35 W, lighter, +1.4 pp
AIKO-A685-MAE78Dw 685 W 24.50% -0.260 34.5 kg -40 W, lighter, +1.2 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +35 W, cooler, +1.2 pp
AIKO-A680-MAH78Dw 680 W 24.30% -0.260 34.7 kg -45 W, lighter, +1.0 pp
HSM-ND66-GK700 700 W 22.50% -0.280 38.2 kg -25 W, -0.8 pp
HSM-ND66-GK705 705 W 22.70% -0.280 38.2 kg -20 W, -0.6 pp
HSM-ND66-GK710 710 W 22.90% -0.280 38.2 kg -15 W, -0.4 pp
HSM-ND66-GK715 (IEC1500V) 715 W 22.90% -0.280 38.2 kg -10 W, -0.4 pp
HSM-ND66-GK720 (IEC1500V) 720 W 23.00% -0.280 38.2 kg -0.3 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +80 W, cooler, +1.8 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +75 W, cooler, +1.6 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +70 W, cooler, +1.5 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
What is the maximum power output and efficiency of the TCL Zhonghuan G12-66P N-type panels?
Top variants of the G12-66P N-type series reach up to 725 Wp with a maximum efficiency of 23.3%. This is achieved through large-format G12 (210 mm) silicon wafers and N-type TOPCon cells, which use the module surface more effectively than conventional P-type panels of similar dimensions.
How does N-type TOPCon technology in the G12-66P differ from traditional P-type panels?
N-type cells in TOPCon modules eliminate light-induced degradation (LID), a common issue in boron-doped P-type cells. As a result, the module retains more power in its early years, performs better under low-light conditions, and has a more favorable temperature coefficient, leading to higher real-world annual energy yield.
How much extra energy does bifacial construction add to these panels?
The bifacial double glass design allows the module to capture additional energy from reflected light on its rear side. In ground-mounted installations on light-colored ground or gravel, this can add anywhere from a few percent up to over ten percent more output compared to a monofacial panel, depending on mounting height and ground albedo.
What warranty comes with the TCL Zhonghuan G12-66P N-type panels?
As a tier 1 manufacturer, TCL Zhonghuan provides a 15-year product warranty along with a 30-year linear power performance warranty, guaranteeing at least 99% of nominal power in the first year and a gradual, controlled decline afterward. This exceeds the standard coverage offered on many P-type panels currently on the market.
Are the G12-66P N-type panels suitable for large-scale industrial and solar farm installations?
Yes, the high power density enabled by large G12 wafers and the bifacial design make this series well suited for utility-scale projects, including solar farms and industrial installations. Fewer modules are needed to reach a given system capacity, which lowers BoS costs such as wiring, mounting structures, and installation labor.
Is it worth choosing bifacial N-type panels over cheaper P-type modules?
At a similar budget, N-type TOPCon panels typically deliver higher annual yield thanks to lower degradation and better low-light performance, while bifaciality adds further energy production without increasing the installation footprint. In utility-scale and industrial projects, this difference translates into a faster return on investment despite the higher upfront cost.
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