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Sunplus Brand review

750

750 Wp HJT Bifacial 90%
ComparePV verdict

Efficiency leader, weak in heat

Rank 665 of 14,005
Compare panels Datasheet PDF
Power (Wp)
750
Strong · top 1%
Efficiency (%)
24.10
Strong · top 1%
Density (Wp/m²)
241.4
Strong · top 1%
Temp (%/°C)
-0.300
Weak · bottom 3%
Weight (kg)
39.0
Strong · top 15%
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

287 panels in the segment HJT 650-850 W
Metric This panel Median Position in segment Overall rank
Module efficiency 24.10% 22.90% Strong · top 1% 219
Power density 241.4 228.6 Strong · top 1% 219
Temperature coefficient -0.300 -0.240 Weak · bottom 3% 6,093
Weight per kWp 52.0 53.8 Strong · top 15% 5,417
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 · 1 caution
Best for

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

Not ideal for

Hot climates.

Strengths
24.10% module efficiency

Top 1% of the HJT 650-850 W segment, against a median of 22.90%. Ranked 219th in the whole database.

241.4 watts per square metre

Top 1% of the HJT 650-850 W segment, against a median of 228.6. Ranked 219th in the whole database.

52.0 kg per kWp

Top 15% of the HJT 650-850 W segment, against a median of 53.8.

Watch-outs
-0.300 %/°C temperature coefficient

Bottom 3% of the HJT 650-850 W segment, against a median of -0.240. Ranked 6,093rd in the whole database.

Notes from the database
  • At 24.1% efficiency, this panel is on par with typical HJT 750-800W modules
  • At 241.4 W/m² power density, roof space requirements are typical for HJT 750-800W panels
  • Temperature coefficient of -0.30%/°C is 0.06pp worse than HJT 750-800W median (-0.24%/°C) - higher losses in summer heat
  • At 39.0 kg, this panel is 1.8 kg heavier than the HJT 750-800W median (37.2 kg) - more demanding for installation crews
  • Bifacial design (90% factor) captures reflected light - adds 4-14% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 750 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 24.10 % Strong Segment median 22.90%
Vmpp · Impp 44.41 V · 16.89 A Operating point at max power
Voc · Isc 51.03 V · 17.74 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 Strong Strong · top 15%
Cells 156 · HJT Monocrystalline
Bifaciality 90 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Weak bottom 3% 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 675 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 750 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 750 750 W 24.10% -0.300 39.0 kg You are here
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg -50 W, lighter, +0.9 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +50 W, cooler, +0.8 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +45 W, cooler, +0.7 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +40 W, cooler, +0.5 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +10 W, cooler, +0.4 pp
AIKO-A785-GRH78Dw 785 W 24.40% -0.260 39.8 kg +35 W, cooler, +0.3 pp
GK-4-78HGBD-780M 780 W 24.30% -0.260 38.7 kg +30 W, cooler
AIKO-A780-GRH78Dw 780 W 24.30% -0.260 39.8 kg +30 W, cooler
JT755SLk(B) 755 W 24.30% -0.240 36.4 kg Cooler, lighter
TSM-NEG21C.20Q-755 755 W 24.30% -0.260 38.3 kg Cooler
725 725 W 23.30% -0.300 39.0 kg -25 W, -0.8 pp
730 730 W 23.50% -0.300 39.0 kg -20 W, -0.6 pp
735 735 W 23.70% -0.300 39.0 kg -15 W, -0.4 pp
740 740 W 23.80% -0.300 39.0 kg -10 W, -0.3 pp
745 745 W 24.00% -0.300 39.0 kg Very close match
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +55 W, cooler, +1.0 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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