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Mysolar USA Brand review

MS705N-HJTGB

705 Wp HJT Bifacial 95%
ComparePV verdict

Middle of its segment, modest efficiency

Rank 89 of 14,005
Compare panels Datasheet PDF
Power (Wp)
705
Weak · bottom 22%
Efficiency (%)
22.69
Weak · bottom 15%
Density (Wp/m²)
227.0
Weak · bottom 22%
Temp (%/°C)
-0.260
Weak · bottom 18%
Weight (kg)
38.8
Weak · bottom 15%
Warranty (yrs)
30
Typical · median 30 yrs

The Mysolar USA GOLD N-Type HJT Bifacial 700-720W (Framed N132) series are modules designed to maximize energy yield in large-scale installations, where actual energy per square meter is more important than just catalog specifications. The use of N-type HJT cells ensures very good operational stability and reduces long-term power degradation, which translates into predictable production performance in investment models. The bifacial design allows for the recovery of additional energy from reflected light, enabling the modules to better utilize illuminated surfaces, snow, or roof membranes. The rigid, frame structure facilitates installation on standard mounting systems and increases resistance to construction site conditions. In practice, this is a good choice for PV farms, carports, and industrial roofs, where reliability, high productivity, and compatibility with typical infrastructure are important. Compared to many TOPCon solutions, it stands out due to its high bifaciality and emphasis on low degradation, which realistically improves the energy balance throughout the entire lifespan of the installation.

Ranking

222 panels in the segment HJT 700-750 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.69% 23.02% Weak · bottom 15% 3,496
Power density 227.0 230.2 Weak · bottom 22% 3,361
Temperature coefficient -0.260 -0.240 Weak · bottom 18% 511
Weight per kWp 55.0 53.6 Weak · bottom 15% 9,420
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 5 caution
Best for

Utility-scale, commercial and hot-climate.

Not ideal for

Tight roof space, weight-limited structures and hot climates.

Watch-outs
22.69% module efficiency

Bottom 15% of the HJT 700-750 W segment, against a median of 23.02%.

55.0 kg per kWp

Bottom 15% of the HJT 700-750 W segment, against a median of 53.6.

-0.260 %/°C temperature coefficient

Bottom 18% of the HJT 700-750 W segment, against a median of -0.240.

What owners get
Best-in-market HJT bifaciality

HJT technology delivers a bifaciality factor of 90-95%, versus roughly 70% for PERC cells, enabling an additional 5-30% rear-side energy gain depending on ground albedo (snow, light-colored roofing, membranes).

Best-in-class temperature coefficient

HJT cells achieve a power temperature coefficient of around -0.24% to -0.26%/°C - the best figure among commercial silicon technologies, clearly outperforming the typical -0.29% to -0.35%/°C seen in TOPCon and PERC, translating into higher yield in hot climates.

30/30-year warranty

The manufacturer offers a 30-year product warranty together with a 30-year power warranty, placing the series at the top of the segment - many tier-1 manufacturers still offer a standard 25-year product warranty alongside 30 years on power.

High efficiency up to 23.17%

Efficiency in the 22.53-23.17% range at up to 720W output places these modules near the top of N-type technology and makes them competitive with comparable-power TOPCon offerings.

Framed design for easier mounting

The rigid aluminum frame allows mounting on standard racking systems and improves resistance to damage during transport and installation, which matters for large-scale PV farm and carport projects.

Trade-offs
No BNEF Tier 1 status

Mysolar USA (a Mamibot brand) positions itself as an aspiring Tier 1 manufacturer, but it does not yet appear on BloombergNEF's official Tier 1 lists for Q1 and Q2 2026, which may complicate bank financing for large commercial installations.

Marginally lower efficiency than TOPCon peers

The maximum 23.17% efficiency is slightly below comparable 720W TOPCon modules - Gamko GKA210N132 (23.18%), Renesola RS9-700~720NBG-E1 (23.18%), and DMEGC DMxxxG12T-B66HSW (23.2%) - so the HJT technology premium does not translate into a power-density advantage here.

Notes from the database
  • At 22.7% efficiency, this panel is on par with typical HJT 700-750W modules
  • Power density of 226.9 W/m² is 3.2 W/m² below HJT 700-750W median (230.2 W/m²) - needs more roof space
  • Temperature coefficient of -0.26%/°C is 0.02pp worse than HJT 700-750W median (-0.24%/°C) - higher losses in summer heat
  • Bifaciality factor of 95% can add 5-14% extra yield with reflective mounting surface
  • #3496 for efficiency, #511 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 705 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.69 % Weak Segment median 23.02%
Vmpp · Impp 42.25 V · 16.69 A Operating point at max power
Voc · Isc 50.29 V · 17.49 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 38.8 kg Weak Weak · bottom 15%
Cells 132 · HJT Monocrystalline
Bifaciality 95 % Rear output as a share of front
Coefficient Pmax -0.260 %/°C Weak bottom 18% of its segment
Coefficient Voc · Isc -0.240 · 0.040 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 30 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 91.8 % Equals 647 W guaranteed
Degradation 0.25 % Per year after the first

Datasheet charts

Open datasheet PDF

Measured curves published by Mysolar USA in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 705 Wp appear here. The rest cover the whole series.

Current-Voltage Curves at Various Irradiance Levels (Cells temp. = 25°C, MS700N-HJTGB) Current-Voltage Curves at Various Irradiance Levels (Cells temp. = 25°C, MS700N-HJTGB) Whole series Current-Voltage Curves at Various Cell Temperatures (Incident Irrad. = 1000 W/m²) Current-Voltage Curves at Various Cell Temperatures (Incident Irrad. = 1000 W/m²) 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
-0.260 %/°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.

Alternatives

All Mysolar USA panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Mysolar USA MS705N-HJTGB 705 W 22.69% -0.260 38.8 kg You are here
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg -25 W, lighter, +2.5 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg -30 W, lighter, +2.3 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg Lighter, +2.3 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg -10 W, lighter, +2.2 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg -35 W, lighter, +2.1 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg -35 W, lighter, +2.1 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg -35 W, lighter, +2.1 pp
MS680N-DHBG 680 W 21.89% -0.300 38.5 kg -25 W, hotter, -0.8 pp
MS685N-DHBG 685 W 22.05% -0.300 38.5 kg -20 W, hotter, -0.6 pp
MS690N-DHBG 690 W 22.21% -0.300 38.5 kg -15 W, hotter, -0.5 pp
MS695N-DHBG 695 W 22.37% -0.300 38.5 kg -10 W, hotter, -0.3 pp
MS700N-DHBG 700 W 22.53% -0.300 38.5 kg Hotter
MS710N-HJTGB 710 W 22.86% -0.260 38.8 kg Very close match
MS715N-HJTGB 715 W 23.01% -0.260 38.8 kg +10 W, +0.3 pp
MS720N-HJTGB 720 W 23.17% -0.260 38.8 kg +15 W, +0.5 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +100 W, heavier, +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 cell technology in the Mysolar USA GOLD 700–720W series differ from TOPCon panels?
HJT cells combine a thin amorphous silicon layer with an N-type monocrystalline wafer, delivering a temperature coefficient of just -0.26%/°C — better than most TOPCon designs. The GOLD HJT 700–720W series also eliminates LID (light-induced degradation), so output stays stable from the very first season. In real-world terms, that translates to higher yield on hot summer days and more predictable energy production across the full 30-year warranty period.
What warranty comes with the Mysolar USA GOLD N-Type HJT Bifacial 700–720W panels?
The manufacturer provides a 30-year product warranty and a 30-year linear power warranty. HJT cells degrade at approximately 0.25–0.35% per year, meaning the modules retain over 87% of rated power after 30 years. This is one of the strongest warranty packages available in this power class and a critical input when modeling ROI for utility-scale PV projects.
Are the Mysolar USA GOLD HJT 700–720W panels suitable for utility-scale solar farms or carports?
Yes, the GOLD HJT 700–720W series is purpose-built for large-scale installations: utility-scale PV farms, solar carports, and industrial rooftops. The rigid aluminum-framed design is compatible with standard racking systems — no custom profiles required. At 720 W peak, fewer modules are needed per megawatt of installed capacity, reducing labor time and overall BoS costs.
What does 95% bifaciality mean in the Mysolar USA GOLD HJT series and how much additional energy can I expect?
A bifaciality factor of 95% means the rear side of the module generates up to 95% of the power produced by the front side under equal irradiance. With a reflective surface below — white roofing membrane, gravel, or snow — the rear side can contribute an additional 5–25% energy yield annually. This is among the highest bifaciality ratings available, significantly outperforming many TOPCon panels rated at 70–80%.
What are the dimensions of the Mysolar USA GOLD HJT N132 panels and are they compatible with standard mounting systems?
The GOLD HJT N132 modules measure 2384×1303×35 mm and are based on 132 G12 (210 mm) half-cut HJT cells. The rigid framed construction is fully compatible with standard aluminum racking used in PV farms and industrial rooftops — no custom hardware needed. Module weight is approximately 33–35 kg, which typically requires a two-person crew during installation.
How do Mysolar USA GOLD HJT 700–720W panels perform in winter and on overcast days?
HJT technology has the lowest temperature coefficient in its class (-0.26%/°C), delivering excellent cold-weather performance: at -20°C these modules produce noticeably more power than comparable PERC or TOPCon panels. The bifacial design also captures energy reflected off snow-covered ground. In diffuse light conditions, the heterojunction structure responds better to low-irradiance environments, improving total annual energy yield.
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