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Risen RSM132-8-735BHDG
Risen Brand review

RSM132-8-735BHDG

735 Wp HJT Bifacial 90%
ComparePV verdict

Light for its output, no clear weak spot

Rank 155 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)
-0.240
Typical · median -0.240
Weight (kg)
37.5
Strong · top 7%
Warranty (yrs)
30
Typical · median 30 yrs

The Risen Hyper-ion Pro / Heterojunction Hyper-ion (bifacial) series was designed to maximize energy yield in real-world operating conditions - especially where every percentage point of yield matters. Its key advantage lies in the combination of heterojunction HJT n-type cells with bifacial construction, enabling efficient operation not only from the front side but also utilizing reflected light from the ground. This translates to higher yields on flat rooftops, ground-mounted installations, and surfaces with high albedo.

Another standout feature is the Hyper-link interconnect with reduced electrical/mechanical stresses, which enhances both electrical and mechanical reliability, effectively minimizing the risk of micro-cracking and downtime losses. This series is appealing to investors seeking reliable performance in hot conditions, aided by its favorable operation at high temperatures typical of HJT technology. Additionally, the application benefits from high resistance to degradation mechanisms, simplifying long-term production planning and profitability projections over years.

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 -0.240 -0.240 Typical 13
Weight per kWp 51.0 53.6 Strong · top 7% 4,360
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 hot-climate.

Strengths
51.0 kg per kWp

Top 7% of the HJT 700-750 W segment, against a median of 53.6. Ranked 4,360th in the whole database.

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.

Notes from the database
  • 23.7% module efficiency - 0.7pp better than the HJT 700-750W median of 23.0%
  • 236.6 W/m² power density - 6.4 W/m² more than HJT 700-750W median (230.2 W/m²), more power per roof area
  • At -0.24%/°C, hot weather performance is typical for HJT 700-750W panels
  • Bifaciality factor of 90% can add 4-14% extra yield with reflective mounting surface
  • Ranked #517 out of 14005 panels for efficiency in the database

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 42.26 V · 17.41 A Operating point at max power
Voc · Isc 50.40 V · 18.47 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 37.5 kg Strong Strong · top 7%
Cells 132 · HJT Monocrystalline
Bifaciality 90 % 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 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 90.3 % Equals 664 W guaranteed
Degradation 1.00 → 0.30 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Risen 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.

Linear Performance Warranty Linear Performance Warranty Whole series I-V characteristics at different temperatures I-V characteristics at different temperatures 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
-0.240 %/°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
Risen RSM132-8-735BHDG 735 W 23.70% -0.240 37.5 kg You are here
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg -35 W, 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, hotter, +0.8 pp
AIKO-A785-GRH78Dw 785 W 24.40% -0.260 39.8 kg +50 W, heavier, +0.7 pp
GK-4-78HGBD-780M 780 W 24.30% -0.260 38.7 kg +45 W, hotter, +0.6 pp
AIKO-A780-GRH78Dw 780 W 24.30% -0.260 39.8 kg +45 W, heavier, +0.6 pp
JT755SLk(B) 755 W 24.30% -0.240 36.4 kg +20 W, lighter, +0.6 pp
TSM-NEG21C.20Q-755 755 W 24.30% -0.260 38.3 kg +20 W, hotter, +0.6 pp
RSM132-8-650BMDG 650 W 20.90% -0.340 38.3 kg -85 W, hotter, -2.8 pp
RSM132-8-655M 655 W 21.10% -0.340 33.5 kg -80 W, hotter, -2.6 pp
RSM132-8-660BMDG 660 W 21.20% -0.340 38.3 kg -75 W, hotter, -2.5 pp
RSM132-8-665BMDG 665 W 21.40% -0.340 38.3 kg -70 W, hotter, -2.3 pp
RSM132-8-670M 670 W 21.60% -0.340 33.5 kg -65 W, hotter, -2.1 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +70 W, heavier, +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
What warranty does the Risen Hyper-ion Pro series come with, and what does it cover?
The Risen Hyper-ion Pro carries a 15-year product warranty covering material and workmanship defects, plus a 30-year power output warranty. After 30 years of operation, the module must retain at least 90.3% of its rated power. First-year degradation is capped at 1%, with subsequent annual degradation not exceeding 0.3%. This is among the most competitive degradation schedules currently available on the market.
Are Risen Hyper-ion Pro panels suitable for flat roofs or ground-mounted systems?
Yes. The bifacial design of the Hyper-ion Pro is especially well-suited for flat roofs and ground-mounted installations. The module harvests both direct front-side irradiance and light reflected from the ground surface (snow, white geomembranes, gravel), potentially boosting energy yield by several percentage points compared to a monofacial module. The large panel dimensions (approx. 2384×1303 mm) should be factored into racking and structural design.
How does HJT technology in the Risen Hyper-ion Pro differ from mainstream TOPCon modules?
HJT cells combine crystalline silicon with amorphous silicon layers, resulting in a lower temperature coefficient (approximately -0.24%/°C versus ~-0.30%/°C for TOPCon). This means smaller power losses on hot days. HJT also achieves higher bifaciality (up to 90%) and better resistance to PID and LID. The trade-off is a higher per-watt price compared to volume-produced TOPCon modules.
What is the peak power of the Risen Hyper-ion Pro and how does it compare to competing modules?
The top variant in the series reaches 745 Wp with module efficiency up to 24.0%, placing it among the leading commercial modules available in 2025. By comparison, mainstream TOPCon modules of the same physical size typically top out at 730–740 Wp. Higher per-panel wattage means fewer modules are needed to reach a target system size, which can reduce mounting hardware and labor costs.
Does the Risen Hyper-ion Pro perform well in summer when ambient temperatures exceed 35°C?
Yes. HJT technology delivers one of the lowest temperature coefficients on the market at approximately -0.24%/°C. At a cell temperature of 65°C, typical on a hot summer day, the module loses roughly 9.6% of STC power, whereas a standard PERC module would lose 14–16%. In practice, Hyper-ion Pro installations generate more energy during peak summer heat than equivalent installed capacity in PERC or average TOPCon technology.
What is the Hyper-link interconnect used in the Risen Hyper-ion Pro and does it matter for long-term reliability?
Hyper-link is Risen's patented cell interconnection system designed to minimize mechanical stress at solder joints. Reduced stress lowers the risk of micro-cracks, a common cause of silent power degradation over time. Combined with HJT's inherent resistance to PID and LID, this contributes to more stable energy production throughout the 30-year power warranty period.
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