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Risen RSM132-8-665M
Risen Brand review

RSM132-8-665M

665 Wp PERC
ComparePV verdict

Light for its output, short guarantee

Rank 3,843 of 14,129
Compare panels Datasheet PDF
Power (Wp)
665
Typical for its class
Efficiency (%)
21.40
Typical · median 21.25%
Density (Wp/m²)
214.1
Typical · median 212.5
Temp (%/°C)
-0.340
Typical · median -0.340
Weight (kg)
33.5
Strong · 1.0 kg below median
Warranty (yrs)
25
Weak · bottom 21%

The Risen TITAN RSM132-8-655M-675M series are large-format modules engineered for maximizing yield from one string and one mounting structure, specifically tailored for ground-mounted installations and large rooftops. Utilizing the 132 monocrystalline PERC technology helps extract more energy in real-world conditions, while excellent low-light performance minimizes losses during early mornings, winter, and overcast periods. In practice, this translates to more stable energy production and greater project profitability, where every percentage point counts.

A notable feature is the enhanced resistance to PID, crucial for long cable runs and challenging environmental conditions. The manufacturer employs dual-level electroluminescence (EL) inspection and optimized current parameters, reducing the risk of module mismatch within a string and associated power losses. This series is designed for investors and developers seeking to minimize Balance of System (BOS) costs while achieving high power density without compromising on reliability.

Ranking

320 panels in the segment PERC 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.40% 21.25% Typical 8,388
Power density 214.1 212.5 Typical 8,315
Temperature coefficient -0.340 -0.340 Typical 8,846
Weight per kWp 50.4 52.3 Strong · top 22% 3,759
Performance warranty 25 yrs 30 yrs Weak · bottom 21% 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 1 caution
Best for

Commercial and utility-scale.

Not ideal for

Owners who want a long output guarantee.

Strengths
50.4 kg per kWp

Top 22% of the PERC 650-700 W segment, against a median of 52.3.

Watch-outs
25 year performance warranty

Bottom 21% of the PERC 650-700 W segment, against a median of 30 yrs.

Notes from the database
  • At 21.4% efficiency, this panel is on par with typical PERC 650-700W modules
  • Power density of 214.1 W/m² matches the PERC 650-700W median
  • At -0.34%/°C, hot weather performance is typical for PERC 650-700W panels
  • At 33.5 kg, weight matches the PERC 650-700W median
  • Ranked #8388 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 665 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.40 % Typical Segment median 21.25%
Vmpp · Impp 38.30 V · 17.37 A Operating point at max power
Voc · Isc 45.95 V · 18.38 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 33.5 kg Strong Strong · 1.0 kg below median
Cells 132 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.340 of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 21% · median 30 yrs
End-of-warranty output 84.8 % Equals 546 W guaranteed
Degradation 2.00 → 0.55 % 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 665 Wp appear here. The rest cover the whole series.

Linear Performance Warranty (12 year Product Warranty / 25 year Linear Power Warranty) Linear Performance Warranty (12 year Product Warranty / 25 year Linear Power Warranty) Whole series RSM132-8-665M I-V characteristics at different irradiations RSM132-8-665M I-V characteristics at different irradiations 665 W 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
-

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

Heat losses
-0.340 %/°C against a segment median of -0.340
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Risen RSM132-8-665M 665 W 21.40% -0.340 33.5 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +3.8 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Cooler, +3.8 pp, +5 yr warranty
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, +3.6 pp, +5 yr warranty
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +3.6 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg Cooler, +3.6 pp, +5 yr warranty
WST-675BKX72-A2 675 W 25.00% -0.260 32.1 kg Cooler, +3.6 pp, +5 yr warranty
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg Cooler, +3.5 pp, +5 yr warranty
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +3.4 pp
RSM132-8-650BMDG 650 W 20.90% -0.340 38.3 kg Heavier, -0.5 pp, +5 yr warranty
RSM132-8-655M 655 W 21.10% -0.340 33.5 kg -10 W, -0.3 pp
RSM132-8-660BMDG 660 W 21.20% -0.340 38.3 kg Heavier, +5 yr warranty
RSM132-8-670M 670 W 21.60% -0.340 33.5 kg +0.2 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +140 W, cooler, +3.7 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +135 W, cooler, +3.5 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +130 W, cooler, +3.4 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +125 W, cooler, +3.2 pp

Found 1393 panels of the same or similar size to this one, within ±10 mm. See them here Found 1403 panels of the same or similar size to this one, within ±25 mm. See them here Found 1403 panels of the same or similar size to this one, within ±50 mm. See them here Found 1435 panels of the same or similar size to this one, within ±100 mm. See them here

About the TITAN RSM132-8-655M-675M series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What warranty does the Risen TITAN RSM132-8-655M-675M series come with?
Risen Energy provides a 12-year product warranty and a 25-year linear power warranty for the TITAN RSM132-8-655M-675M modules. After 25 years, the panels are guaranteed to retain at least 84.8% of their rated output power. As a Bloomberg NEF Tier 1 manufacturer, Risen Energy offers additional assurance regarding the long-term validity of its warranty commitments.
What module efficiency does the Risen TITAN RSM132-8-675M achieve, and how does it compare?
The top variant in the series, the RSM132-8-675M, achieves a module efficiency of up to 21.7% - an excellent result for PERC technology at this large format. In practical terms, this translates to more energy per unit of roof or ground area. Compared to older polycrystalline panels, the gain of several percentage points meaningfully shortens the return-on-investment period.
Are the Risen TITAN RSM132-8-655M-675M panels suitable for a residential pitched roof?
Due to their large dimensions (2384×1303×35 mm) and weight of approximately 33.5 kg, the TITAN RSM132-8 series is primarily designed for ground-mounted systems and large industrial or commercial rooftops. On a typical residential pitched roof, these modules can be challenging to transport and install, and their large format may not fit the available surface area. For residential prosumer applications, smaller Risen modules in the 400-450 W range are generally a better fit.
How do the Risen TITAN RSM132-8-655M-675M modules perform in low-light and overcast conditions?
The PERC technology used in all 132 monocrystalline cells improves low-irradiance absorption through reflective rear-surface passivation layers. The TITAN RSM132-8 series also features a low temperature coefficient of Pmax at -0.34%/°C, limiting losses on hot days. Strong performance under diffuse light reduces energy losses during morning hours, winter months, and cloudy weather - a key factor for projects where every percentage point of annual yield matters.
What is PID and why does enhanced PID resistance matter in the Risen TITAN RSM132-8 series?
PID (Potential Induced Degradation) is a degradation mechanism triggered by high operating voltage combined with moisture, which can permanently reduce a module's power output by several percent. In the TITAN RSM132-8-655M-675M series, Risen applies enhanced PID resistance - especially important in long strings common to utility-scale PV plants operating at 1500 V system voltage and in high-humidity environments. This helps ensure that rated power output is maintained over the full 25-year warranty period.
How many Risen TITAN RSM132-8-675M modules do I need for a 50 kWp system and what total area will they cover?
At 675 W per module, a 50 kWp system requires approximately 74-75 units (50,000 W ÷ 675 W ≈ 74.1). Each module covers roughly 3.11 m² (2.384 m × 1.303 m), so the total array footprint will be approximately 230-235 m². This is a typical application for ground-mounted farms or large industrial rooftops, where the high unit power of the TITAN RSM132-8 reduces the total module count and lowers overall BoS costs.
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