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Resun Solar RS8L-M-DG-595
Resun Solar Brand review

RS8L-M-DG-595

595 Wp TOPCon Bifacial 10%
ComparePV verdict

Middle of its segment, modest efficiency

Rank 4,743 of 14,005
Compare panels Datasheet PDF
Power (Wp)
595
Strong · top 5%
Efficiency (%)
21.29
Weak · bottom 4%
Density (Wp/m²)
212.9
Weak · bottom 4%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
32.9
Typical · median 31.2 kg
Warranty (yrs)
30
Typical · median 30 yrs

The RS8L-M-DG series consists of dual-glass bifacial modules designed for installations where long-term energy production stability matters most. N-type TOPCon cells arranged in a half-cell layout with multi-busbar (MBB) technology reduce internal power losses and increase resistance to micro-cracks and busbar breakage, lowering the risk of failure over the module's service life. The bifacial design with a double tempered glass structure captures reflected radiation from the ground surface, boosting energy yield without expanding the installation footprint. The panels stand out for their PID resistance, which limits power degradation over time and translates into a lower LCOE across the entire operating period. High-transmittance, anti-reflective glass ensures solid performance even in low-light conditions, such as on cloudy days or during early morning and evening hours. Robust mechanical construction, certified for wind and snow loads, along with resistance to salt mist and ammonia exposure, make the RS8L-M-DG series a strong choice for both rooftop installations and ground-mount farms in demanding climates. It is a solution for investors seeking high reliability, stable output, and a predictable return on investment for years to come.

Ranking

1,018 panels in the segment TOPCon 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.29% 22.44% Weak · bottom 4% 8,708
Power density 212.9 224.4 Weak · bottom 4% 8,601
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 55.3 53.8 Typical 9,746
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 · 2 caution
Best for

Utility-scale and commercial.

Not ideal for

Tight roof space and roofs where every square metre has to count.

Watch-outs
21.29% module efficiency

Bottom 4% of the TOPCon 550-600 W segment, against a median of 22.44%. Ranked 8,708th in the whole database.

212.9 watts per square metre

Bottom 4% of the TOPCon 550-600 W segment, against a median of 224.4. Ranked 8,601st in the whole database.

Notes from the database
  • Module efficiency of 21.3% is 1.2pp below average for TOPCon 550-600W panels (median: 22.4%)
  • 212.9 W/m² power density is 11.5 W/m² below TOPCon 550-600W median (224.4 W/m²) - requires larger installation area
  • Temperature coefficient of -0.30%/°C matches the TOPCon 550-600W median
  • At 32.9 kg (1.7 kg above TOPCon 550-600W median of 31.2 kg), requires checking roof load capacity
  • Bifacial design (10% factor) captures reflected light - adds 0-2% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 595 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.29 % Weak Segment median 22.44%
Vmpp · Impp 45.70 V · 13.02 A Operating point at max power
Voc · Isc 55.00 V · 13.83 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2465×1134×35 mm · 2.80 m² of roof
Weight 32.9 kg Typical Typical · median 31.2 kg
Cells 156 · TOPCon Monocrystalline
Bifaciality 10 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°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

Datasheet charts

Open datasheet PDF

Measured curves published by Resun Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 595 Wp appear here. The rest cover the whole series.

I-V Curves of PV Module I-V Curves of PV Module Whole series P-V Curves of PV Module P-V Curves of PV Module 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
-0.300 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Alternatives

All Resun Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Resun Solar RS8L-M-DG-595 595 W 21.29% -0.300 32.9 kg You are here
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +50 W, lighter, +3.7 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +3.5 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +45 W, lighter, +3.5 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg -40 W, lighter, +3.3 pp
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg +40 W, lighter, +3.3 pp
RS8L-M-DG-600 600 W 21.46% -0.300 32.9 kg Very close match
RS8L-M-DG-605 605 W 21.64% -0.300 32.9 kg +10 W, +0.4 pp
RS8L-M-DG-610 610 W 21.82% -0.300 32.9 kg +15 W, +0.5 pp
RS8L-M-DG-615 615 W 22.00% -0.300 32.9 kg +20 W, +0.7 pp
RS8L-M-DG-620 620 W 22.18% -0.300 32.9 kg +25 W, +0.9 pp
RS8L-M-DG-625 625 W 22.36% -0.300 32.9 kg +30 W, +1.1 pp
RS8L-M-DG-630 630 W 22.54% -0.300 32.9 kg +35 W, +1.2 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +85 W, cooler, +3.9 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +80 W, cooler, +3.7 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +105 W, cooler, +3.7 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +100 W, cooler, +3.6 pp

Found 616 panels of the same or similar size to this one, within ±10 mm. See them here Found 616 panels of the same or similar size to this one, within ±25 mm. See them here Found 616 panels of the same or similar size to this one, within ±50 mm. See them here Found 1813 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 Resun Solar RS8L-M-DG panels and what determines it?
The RS8L-M-DG series reaches a maximum power output of up to 630 Wp. This is achieved through N-type TOPCon half-cell technology combined with multi-busbar (MBB) design, which reduces current losses and increases conversion efficiency compared to older technologies such as PERC.
How does TOPCon technology differ from PERC in the RS8L-M-DG panels?
TOPCon (Tunnel Oxide Passivated Contact) is a newer generation of N-type cells that, compared to PERC, offers higher efficiency, lower power degradation over time, and better resistance to temperature and microcracks. As a result, RS8L-M-DG panels maintain more stable energy output throughout their lifespan, which lowers the levelized cost of energy (LCOE).
Does the bifacial design of RS8L-M-DG panels actually increase energy yield?
Yes. The bifacial construction with dual tempered glass captures light reflected off the ground surface, such as a light-colored roof, gravel, or snow, generating additional energy from the rear side of the module without increasing the installation footprint. Actual gains depend on ground albedo and mounting height but typically range from a few to over ten percent more annual energy.
What is the warranty on Resun Solar RS8L-M-DG panels?
The manufacturer provides a 15-year product warranty and a 30-year power output warranty. This means long-term protection for both mechanical integrity and guaranteed performance levels, giving investors a predictable return on investment over the panel's lifespan.
Are RS8L-M-DG panels suitable for ground-mounted farms in demanding climate conditions?
Yes, the RS8L-M-DG series features a robust mechanical structure certified for wind and snow loads, as well as resistance to salt mist and ammonia. These characteristics make the panels well-suited for both rooftop and large-scale ground-mounted installations, including coastal and agricultural regions.
Are RS8L-M-DG panels resistant to PID degradation and what does that mean in practice?
Yes, the modules have certified PID (Potential Induced Degradation) resistance, which prevents power loss caused by voltage potential differences within the array. This resistance helps the panel maintain its rated performance over time, reducing energy output decline and lowering the real cost of energy produced over the system's lifetime.
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