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Runergy Brand review

SS9-66HS-665M

665 Wp PERC
ComparePV verdict

Light for its output, short guarantee

Rank 3,731 of 14,005
Compare panels Datasheet PDF
Power (Wp)
665
Typical for its class
Efficiency (%)
21.41
Typical · median 21.25%
Density (Wp/m²)
214.1
Typical · median 212.5
Temp (%/°C)
-0.340
Typical · median -0.340
Weight (kg)
32.5
Strong · 2.0 kg below median
Warranty (yrs)
25
Weak · bottom 21%

The Runergy SS9-66HS 650-670M (Lumina I) series are modules designed for maximum power output from a large surface area - particularly in situations where a quick return on investment and reduced equipment costs are key. The use of monocrystalline cells in PERC technology and a half-cut cell design helps to optimize performance under partial shading and reduces heat losses, resulting in more stable production in real-world conditions. For installers and designers, the format designed for large-scale farms and roofs is also important: fewer modules for the same power output mean shorter installation times, fewer connections, and a lower risk of errors during construction. Lumina I is characterized by high mechanical strength and components designed for use in harsh environments (humidity, temperature fluctuations, dust). It is a good choice for commercial and industrial installations, as well as PV farms, where predictability, durability, and easier scalability are important.

Ranking

320 panels in the segment PERC 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.41% 21.25% Typical 8,280
Power density 214.1 212.5 Typical 8,250
Temperature coefficient -0.340 -0.340 Typical 8,778
Weight per kWp 48.9 52.3 Strong · top 5% 2,555
Performance warranty 25 yrs 30 yrs Weak · bottom 21% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 1 caution
Best for

Commercial, utility-scale and shaded-installations.

Not ideal for

Owners who want a long output guarantee.

Strengths
48.9 kg per kWp

Top 5% of the PERC 650-700 W segment, against a median of 52.3. Ranked 2,555th in the whole database.

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
  • At 214.1 W/m² power density, roof space requirements are typical for PERC 650-700W panels
  • At -0.34%/°C, hot weather performance is typical for PERC 650-700W panels
  • Weight of 32.5 kg (2.0 kg below PERC 650-700W median of 34.5 kg) allows easier transport and roof mounting
  • Ranked #8280 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 665 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.41 % Typical Segment median 21.25%
Vmpp · Impp 38.28 V · 17.38 A Operating point at max power
Voc · Isc 45.93 V · 18.39 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 32.5 kg Strong Strong · 2.0 kg below median
Cells 132 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.340 of its segment
Coefficient Voc · Isc -0.260 · 0.050 %/°C
NOCT 45 °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

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
Runergy SS9-66HS-665M 665 W 21.41% -0.340 32.5 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
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, +3.4 pp, +5 yr warranty
SS9-66HD-645M 645 W 20.76% -0.330 37.5 kg Heavier, -0.6 pp, +5 yr warranty
SS9-66HD-650M 650 W 20.92% -0.330 37.5 kg Heavier, -0.5 pp, +5 yr warranty
SS9-66HS-655M 655 W 21.09% -0.340 32.5 kg -10 W, -0.3 pp
SS9-66HD-660M 660 W 21.25% -0.330 37.5 kg Cooler, heavier, +5 yr warranty
SS9-66HS-670M 670 W 21.57% -0.340 32.5 kg Very close match
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 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
Is the Runergy SS9-66HS 650-670M (Lumina I) panel series still available for purchase?
The Runergy SS9-66HS 650-670M (Lumina I) series has been discontinued. New production orders are no longer fulfilled by the manufacturer, and availability is limited to existing distributor stock. If you need modules with similar specifications, ask your distributor about current Runergy PERC series or newer product lines.
What warranty does Runergy offer on the Lumina I SS9-66HS 650-670M panels?
Runergy provides a 12-year product warranty covering materials and workmanship, along with a 25-year linear power output warranty. This means the modules are guaranteed to retain a contractually defined minimum output power over 25 years of operation. This warranty level is standard for modules designed for commercial and industrial PV systems.
What does PERC technology with half-cut cells mean in the Lumina I panels?
PERC (Passivated Emitter and Rear Cell) adds a passivation layer on the rear side of monocrystalline cells, reflecting unabsorbed light back into the cell and boosting conversion efficiency. Half-cut cells split each cell into two smaller sections, reducing resistive losses and hot-spot risk. Together, these features deliver higher and more stable energy output under real-world operating conditions.
How do the Runergy SS9-66HS 650-670M panels perform under partial shading?
Thanks to the half-cut cell layout, the Lumina I series is more resilient to partial shading than conventional full-cell modules. The half-cut design limits cross-cell shading interactions and reduces hot-spot formation. This is a meaningful advantage for rooftop installations near chimneys, dormers, or other objects that cast shadows across part of the array.
Are the Runergy Lumina I panels bifacial - do they generate power from both sides?
No, the SS9-66HS 650-670M (Lumina I) is a monofacial module - power is generated from the front side only. If additional yield from reflected irradiance is a priority, for example on a white-substrate ground mount, bifacial modules should be considered instead. The monofacial design simplifies BoS selection and often reduces overall system cost for standard rooftop and ground-mounted installations.
What type of installation are the Runergy SS9-66HS 650-670M panels designed for?
With up to 670 Wp and a large module format, the Lumina I series is primarily designed for commercial, industrial, and utility-scale PV farms. Fewer modules required per kilowatt of installed capacity means faster installation, fewer MC4 connectors, and lower overall BoS costs. High mechanical resistance and components rated for demanding environments, including humidity, temperature cycling, and dust exposure, confirm this series is intended for large-scale and challenging projects.
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