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Risen RSM132-8-700-715BHDG-705
Risen Brand review

RSM132-8-700-715BHDG-705

705 Wp HJT Bifacial 90%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 779 of 14,005
Compare panels Datasheet PDF
Power (Wp)
705
Weak · bottom 22%
Efficiency (%)
22.70
Weak · bottom 20%
Density (Wp/m²)
227.0
Weak · bottom 22%
Temp (%/°C)
-0.240
Typical · median -0.240
Weight (kg)
40.0
Weak · 1.7 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Risen Heterojunction Hyper-ion (Hyper-ion) series comprises HJT modules designed for maximum energy yield under real-world conditions - especially in locations where stable operation at high temperatures and long-term production predictability are critical. The key feature is the HJT heterojunction technology, which combines high efficiency with low temperature sensitivity and excellent performance in both-sided power generation. In practice, this translates to higher annual yields without the need for system oversizing.

0BB cells (without traditional busbars) improve module structure connections and support resistance to micro-cracking, ensuring more reliable long-term performance. Additionally, ultra-thin wafers and low-temperature processes contribute to a lower carbon footprint, making the product ideal for environmentally demanding projects. The series also offers high resistance to PID and LeTID, making it suitable for large-scale PV farms, industrial installations, and demanding operational conditions where competitive modules often degrade over time.

Ranking

222 panels in the segment HJT 700-750 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.70% 23.02% Weak · bottom 20% 3,307
Power density 227.0 230.2 Weak · bottom 22% 3,361
Temperature coefficient -0.240 -0.240 Typical 13
Weight per kWp 56.7 53.6 Weak · bottom 2% 10,834
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Utility-scale and hot-climate.

Not ideal for

Weight-limited structures, tight roof space and roofs where every square metre has to count.

Watch-outs
56.7 kg per kWp

Bottom 2% of the HJT 700-750 W segment, against a median of 53.6. Ranked 10,834th in the whole database.

22.70% module efficiency

Bottom 20% of the HJT 700-750 W segment, against a median of 23.02%.

227.0 watts per square metre

Bottom 22% of the HJT 700-750 W segment, against a median of 230.2.

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 -0.24%/°C matches the HJT 700-750W median
  • At 40.0 kg (1.7 kg above HJT 700-750W median of 38.3 kg), requires checking roof load capacity
  • Bifaciality factor of 90% can add 4-14% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 705 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.70 % Weak Segment median 23.02%
Vmpp · Impp 41.86 V · 16.86 A Operating point at max power
Voc · Isc 49.92 V · 17.91 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 40.0 kg Weak Weak · 1.7 kg above median
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 616 W guaranteed
Degradation 1.00 → 0.40 % 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 705 Wp appear here. The rest cover the whole series.

Additional value from Risen's Linear Warranty (0.3% Annual Degradation over 30 years) Additional value from Risen's Linear Warranty (0.3% Annual Degradation over 30 years) Whole series I-V characteristics at different temperatures (AM1.5, 1000W/m²) I-V characteristics at different temperatures (AM1.5, 1000W/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
-0.240 %/°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 RSM132-8-700-715BHDG-705 705 W 22.70% -0.240 40.0 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 Hotter, lighter, +2.3 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg Hotter, 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
RSM132-8-650BMDG 650 W 20.90% -0.340 38.3 kg -55 W, hotter, -1.8 pp
RSM132-8-655M 655 W 21.10% -0.340 33.5 kg Hotter, lighter, -1.6 pp
RSM132-8-660BMDG 660 W 21.20% -0.340 38.3 kg -45 W, hotter, -1.5 pp
RSM132-8-665BMDG 665 W 21.40% -0.340 38.3 kg -40 W, hotter, -1.3 pp
RSM132-8-670M 670 W 21.60% -0.340 33.5 kg Hotter, lighter, -1.1 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +100 W, hotter, +2.4 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +95 W, hotter, +2.2 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +90 W, hotter, +2.1 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +85 W, hotter, +1.9 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 temperature coefficient of Risen Hyper-ion panels and why does it matter in summer?
Risen Hyper-ion modules feature a temperature coefficient of just -0.24%/°C, which is among the lowest values available on the market. By comparison, typical PERC panels reach -0.35%/°C. This means that on hot 35°C days, Hyper-ion panels lose significantly less power than competing modules, translating into measurably higher annual energy yield — particularly in installations exposed to high operating temperatures.
What warranty does the Risen Hyper-ion series carry and what exactly does it cover?
Risen provides a 15-year product warranty on Hyper-ion modules and a 30-year linear power warranty. Under the power warranty, degradation is capped at 1% in the first year and 0.3% per year thereafter, guaranteeing at least 80% of rated power output after three decades of operation. This is one of the most favorable warranty schedules available in the HJT module category.
Are Risen Hyper-ion panels bifacial and how much extra energy can they generate from reflected light?
Yes, the Hyper-ion series is bifacial with a bifaciality factor of up to 90%. The rear side of the module captures irradiance reflected from the ground surface, generating additional power. With a bright albedo surface such as gravel, light concrete, or snow, the energy gain can range from 5% to 20% above nameplate figures. The bifacial benefit is maximized in ground-mounted installations with sufficient clearance beneath the modules.
How does HJT technology in the Risen Hyper-ion differ from the widely used TOPCon?
Both are N-type technologies, but HJT uses a thin amorphous silicon passivation layer surrounding the crystalline cell, enabling lower-temperature manufacturing processes. As a result, HJT cells achieve a lower temperature coefficient (-0.24%/°C vs. approximately -0.30%/°C for TOPCon), higher bifacial symmetry, and a smaller carbon footprint. TOPCon offers lower production costs, while HJT holds the advantage in high-temperature conditions and projects with environmental compliance requirements.
Are Risen Hyper-ion 715 W modules suited for utility-scale solar farms, or are they designed for rooftop installations?
The Hyper-ion 715 W series is primarily engineered for utility-scale and industrial PV projects. High resistance to PID and LeTID, low thermal degradation, and the bifacial 132-cell format make these modules well suited for large ground-mounted plants. For residential sloped rooftops with limited space, the physical size of the module (approx. 2284×1303 mm) and its weight should be evaluated against the mounting structure's load capacity.
What does 0BB cell technology in the Risen Hyper-ion mean and does it improve long-term durability?
0BB stands for zero busbar — the cells contain no conventional metallic busbars running across their surface. Instead, Risen uses ultra-fine interconnections via their proprietary Hyper-link technology. Eliminating thick busbars reduces mechanical stress on the cell, lowers the risk of microcracks, and improves current flow uniformity. In practice, this contributes to better resistance to mechanical degradation during transport and long-term field operation.
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