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Resun Solar Brand review

RS8I585M-F30

585 Wp TOPCon
ComparePV verdict

Light for its output, no clear weak spot

Rank 3,383 of 14,005
Compare panels Datasheet PDF
Power (Wp)
585
Typical for its class
Efficiency (%)
22.65
Typical · median 22.44%
Density (Wp/m²)
226.5
Typical · median 224.4
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
27.2
Strong · 4.0 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

The RS8I-M-F30 TOPCON series is a premium-class module lineup built on N-type mono-crystalline TOPCon cells with half-cell technology, designed for installations where maximizing energy yield from limited roof or ground space is essential. The 16/18BB multi-busbar technology reduces internal power loss and significantly lowers the risk of failures caused by cell micro-cracks, resulting in higher long-term reliability. The panels stand out with their strong anti-PID resistance, keeping power degradation low and improving both energy output and LCOE compared to older-generation modules. Another advantage is the robust mechanical build, certified for high wind and snow loads, along with resistance to salt mist and ammonia, making the series a solid choice for utility-scale solar farms as well as agricultural and coastal installations. The high-transmittance anti-reflective tempered glass ensures more stable performance under low-light conditions. The whole series is backed by a 30-year linear power warranty, giving investors predictable energy revenue throughout the entire lifetime of the installation.

Ranking

1,018 panels in the segment TOPCon 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.65% 22.44% Typical 3,522
Power density 226.5 224.4 Typical 3,500
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 46.5 53.8 Strong · top 12% 1,186
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 0 caution
Best for

Commercial and utility-scale.

Strengths
46.5 kg per kWp

Top 12% of the TOPCon 550-600 W segment, against a median of 53.8.

Notes from the database
  • At 22.6% efficiency, this panel is on par with typical TOPCon 550-600W modules
  • Power density of 226.5 W/m² matches the TOPCon 550-600W median
  • At -0.29%/°C, hot weather performance is typical for TOPCon 550-600W panels
  • At 27.2 kg, this panel is 4.0 kg lighter than TOPCon 550-600W median (31.2 kg) - easier handling during installation
  • #3522 for efficiency, #2165 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 585 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.65 % Typical Segment median 22.44%
Vmpp · Impp 42.87 V · 13.65 A Operating point at max power
Voc · Isc 50.80 V · 14.42 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2278×1134×30 mm · 2.58 m² of roof
Weight 27.2 kg Strong Strong · 4.0 kg below median
Cells 144 · TOPCon Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.240 · 0.048 %/°C
NOCT 45 °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
Degradation 0.50 % Per year after the first

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
-0.290 %/°C against a segment median of -0.290
-

Alternatives

All Resun Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Resun Solar RS8I585M-F30 585 W 22.65% -0.290 27.2 kg You are here
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg -25 W, cooler, +2.2 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg -30 W, cooler, +2.0 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +50 W, cooler, +2.0 pp
AIKO-A630-MAH72Dw 630 W 24.40% -0.260 32.5 kg +45 W, heavier, +1.8 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg -35 W, lighter, +1.8 pp
RS8I-M HC-535 535 W 20.70% -0.340 28.6 kg -50 W, hotter, -1.9 pp
RS8I-540M-BD 540 W 20.94% -0.390 29.0 kg -45 W, hotter, -1.7 pp
RS8I-M HC-540 540 W 20.89% -0.340 28.6 kg -45 W, hotter, -1.8 pp
RS8I-545M-BD 545 W 21.13% -0.390 29.0 kg -40 W, hotter, -1.5 pp
RS8I-M HC-545 545 W 21.09% -0.340 28.6 kg -40 W, hotter, -1.6 pp
RS8I-M FULL BLACK 550W 550 W 21.28% -0.390 28.6 kg -35 W, hotter, -1.4 pp
RS8I-M HC-555 555 W 21.47% -0.340 28.6 kg -30 W, hotter, -1.2 pp
RS8I-555M-F30 555 W 21.50% -0.390 27.2 kg -30 W, hotter, -1.1 pp
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +65 W, cooler, +2.6 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +60 W, cooler, +2.4 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +55 W, cooler, +2.2 pp

Found 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2547 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of the RS8I-M-F30 TOPCON panel?
Panels from the RS8I-M-F30 TOPCON series reach a maximum power output of up to 585 Wp. This is achieved through monocrystalline N-type TOPCon half-cut cells combined with 16/18BB multi-busbar technology, which reduces internal power losses and delivers a high energy yield per unit of module area, ideal for limited roof or ground space.
What warranty applies to the RS8I-M-F30 TOPCON series?
The manufacturer provides a 15-year product warranty and a 30-year linear power warranty. This means the panel retains a guaranteed percentage of its initial power output throughout its service life, giving investors predictable energy revenue and easier ROI planning for their PV installation.
Are the RS8I-M-F30 TOPCON panels bifacial?
No, the RS8I-M-F30 TOPCON series consists of monofacial panels rather than bifacial modules. Nevertheless, thanks to TOPCon technology and high-transmittance anti-reflective tempered glass, these panels still deliver excellent performance even under low irradiance, making them a versatile choice for most rooftop and ground-mounted installations.
What is TOPCon technology and how does it differ from PERC?
TOPCon (Tunnel Oxide Passivated Contact) is a more advanced N-type cell technology that reduces carrier recombination, delivering higher efficiency and lower power degradation over time compared to older P-type PERC cells. In practice, this means a higher energy yield per module area and better resistance to high temperatures and PID effect.
Are the RS8I-M-F30 TOPCON panels suitable for utility-scale solar farms?
Yes, this series is well suited for large ground-mounted installations. A robust mechanical structure certified for high wind and snow loads, strong PID resistance, and resistance to salt mist and ammonia make the panels a good fit for solar farms as well as agricultural or coastal sites.
Do the RS8I-M-F30 TOPCON panels perform well under low light conditions?
Yes, the high-transmittance anti-reflective tempered glass used in the RS8I-M-F30 TOPCON series ensures more stable energy production during cloudy weather, early morning, evening, or diffuse light conditions. Combined with TOPCon technology, this results in a higher annual energy yield compared to older-generation panels.
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