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Sunplus Brand review

735

735 Wp HJT Bifacial 90%
ComparePV verdict

Efficiency leader, weak in heat

Rank 1,146 of 14,005
Compare panels Datasheet PDF
Power (Wp)
735
Strong · top 9%
Efficiency (%)
23.70
Strong · top 7%
Density (Wp/m²)
236.6
Strong · top 9%
Temp (%/°C)
-0.300
Weak · bottom 2%
Weight (kg)
39.0
Typical · median 38.3 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Sunplus Hi-Max series focuses on maximizing energy yield even when the roof or ground is not ideal - in variable sunlight, partial shading, and in installations where long-term stability is crucial. The modules utilize modern half-cut cell technology and refined connections, minimizing losses and better handling micro-shading. This translates to more predictable energy production in real-world operating conditions, rather than just in a laboratory setting.

A key feature of Hi-Max is the combination of bifacial construction with glass-glass technology, which improves resistance to environmental factors and supports long-term reliability. Additionally, Micro Gap Design is used, which enhances tolerance to shading and facilitates maintaining high efficiency in dense environments.

This is a good choice for installers and investors seeking high durability in residential, commercial, and larger ground-mounted projects - particularly where hassle-free operation and reliable energy yield are important.

Ranking

222 panels in the segment HJT 700-750 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.70% 23.02% Strong · top 7% 517
Power density 236.6 230.2 Strong · top 9% 582
Temperature coefficient -0.300 -0.240 Weak · bottom 2% 6,093
Weight per kWp 53.1 53.6 Typical 6,818
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 1 caution
Best for

Commercial, utility-scale, shaded-installations and hot-climate.

Not ideal for

Hot climates.

Strengths
23.70% module efficiency

Top 7% of the HJT 700-750 W segment, against a median of 23.02%. Ranked 517th in the whole database.

236.6 watts per square metre

Top 9% of the HJT 700-750 W segment, against a median of 230.2. Ranked 582nd in the whole database.

Watch-outs
-0.300 %/°C temperature coefficient

Bottom 2% of the HJT 700-750 W segment, against a median of -0.240. Ranked 6,093rd in the whole database.

Notes from the database
  • 23.7% module efficiency - 0.7pp better than the HJT 700-750W median of 23.0%
  • Power density of 236.6 W/m² packs 6.4 W/m² more into the same footprint vs HJT 700-750W median (230.2 W/m²)
  • At -0.30%/°C, loses 0.06pp more power per degree than HJT 700-750W median (-0.24%/°C)
  • 90% bifaciality enables rear-side power generation, boosting yield by 4-14% on reflective surfaces
  • #517 for efficiency, #6093 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 735 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.70 % Strong Segment median 23.02%
Vmpp · Impp 43.71 V · 16.72 A Operating point at max power
Voc · Isc 51.01 V · 17.68 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 39.0 kg Typical Typical · median 38.3 kg
Cells 156 · HJT Monocrystalline
Bifaciality 90 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Weak bottom 2% of its segment
Coefficient Voc · Isc -0.240 · 0.040 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 90.0 % Equals 662 W guaranteed
Degradation 1.00 → 0.31 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Sunplus in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 735 Wp appear here. The rest cover the whole series.

Performance Warranty Performance 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
-
With bifacial gain
-

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

Heat losses
-0.300 %/°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
Sunplus 735 735 W 23.70% -0.300 39.0 kg You are here
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg Cooler, lighter, +1.3 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg -40 W, lighter, +1.2 pp
AIKO-A690-MAE78Dw 690 W 24.70% -0.260 34.5 kg -45 W, lighter, +1.0 pp
AIKO-A685-MAE78Dw 685 W 24.50% -0.260 34.5 kg -50 W, lighter, +0.8 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +25 W, cooler, +0.8 pp
AIKO-A785-GRH78Dw 785 W 24.40% -0.260 39.8 kg +50 W, cooler, +0.7 pp
GK-4-78HGBD-780M 780 W 24.30% -0.260 38.7 kg +45 W, cooler, +0.6 pp
AIKO-A780-GRH78Dw 780 W 24.30% -0.260 39.8 kg +45 W, cooler, +0.6 pp
JT755SLk(B) 755 W 24.30% -0.240 36.4 kg Cooler, lighter, +0.6 pp
TSM-NEG21C.20Q-755 755 W 24.30% -0.260 38.3 kg +20 W, cooler, +0.6 pp
725 725 W 23.30% -0.300 39.0 kg -10 W, -0.4 pp
730 730 W 23.50% -0.300 39.0 kg Very close match
740 740 W 23.80% -0.300 39.0 kg Very close match
745 745 W 24.00% -0.300 39.0 kg +10 W, +0.3 pp
750 750 W 24.10% -0.300 39.0 kg +15 W, +0.4 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +70 W, cooler, +1.4 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 Sunplus Hi-Max panels differ from classic PERC cells?
HJT (heterojunction) cells combine a crystalline silicon layer with thin amorphous silicon layers, reducing thermal losses and improving efficiency at higher temperatures compared to PERC. In practice, Hi-Max panels lose power more slowly on hot days and perform better under variable irradiance, resulting in higher real-world annual energy yield.
Are Sunplus Hi-Max panels suitable for installations with partial shading?
Yes, this is one of the series' main strengths. The half-cut cell architecture combined with Micro Gap Design increases shade tolerance from chimneys, antennas, or trees, limiting the impact of individual cell power drops on the whole module string. As a result, energy production stays more stable even under difficult mounting conditions.
What is the maximum power output of the Hi-Max series and what installations does it suit?
Hi-Max panels reach up to 750 Wp, making them a strong choice for both large commercial rooftop installations and ground-mounted solar farms. High per-module power output reduces the number of panels needed to reach a target system capacity, lowering mounting structure and labor costs.
What is bifacial construction and is it worth paying extra for Hi-Max double-sided panels?
Bifacial construction means the panel generates energy from both the front and rear side, capturing light reflected off the ground surface. In the Hi-Max series this is combined with glass-glass technology, further improving module durability. The extra cost makes sense especially for ground-mount installations over light-colored surfaces or elevated racking, where rear-side gain can reach several percent additional yield.
What is the power warranty on Sunplus Hi-Max panels?
The Hi-Max series comes with a 30-year power warranty, well above the typical industry standard of 25 years. This extended coverage stems from the glass-glass construction, which protects the cells against moisture ingress and degradation better than standard back-sheet panels, resulting in a slower power decline over time.
Are Hi-Max panels resistant to moisture and harsh weather conditions?
Yes, thanks to glass-glass technology the module is sealed on both sides with glass layers instead of a standard rear polymer back-sheet, significantly reducing moisture penetration and protecting the cells from corrosion and micro-cracks. This construction helps the panels better withstand temperature swings, wind, and precipitation, maintaining stable performance throughout their service life.
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