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Resun Solar Brand review

RS8H-M-BD-615W

615 Wp TOPCon
ComparePV verdict

Light for its output, no clear weak spot

Rank 2,284 of 14,005
Compare panels Datasheet PDF
Power (Wp)
615
Typical for its class
Efficiency (%)
22.77
Typical · median 22.80%
Density (Wp/m²)
227.7
Typical · median 227.7
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
29.1
Strong · 3.6 kg below median
Warranty (yrs)
30
Typical · median 30 yrs

The RS8H-M-BD TOPCON series pairs N-type monocrystalline cells with half-cell design and a multi-busbar SMBB layout, reducing internal power loss and boosting solar energy conversion efficiency. This construction significantly lowers the risk of failure from cell micro-cracks and damaged busbars, while splitting the wafer into smaller segments makes the module more resistant to hot-spot effects caused by partial shading. The panel stands out for its high resistance to PID degradation, translating into more stable energy yield and a lower LCOE over the system's lifetime. The tempered front glass, with enhanced light transmittance and anti-reflective properties, delivers stronger performance under low-light conditions, and certified resistance to salt mist and ammonia makes the series well suited to coastal installations and agricultural sites. The frame withstands high wind and snow loads, making it a solid choice for both residential rooftops and large-scale solar farms. A long, linear 30-year power warranty further underscores the durability and predictability of the investment. It's a fitting option for installers and investors seeking high reliability and stable performance in demanding environmental conditions.

Ranking

1,086 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.77% 22.80% Typical 3,073
Power density 227.7 227.7 Typical 3,077
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 47.3 53.1 Strong · top 13% 1,636
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

Utility-scale, commercial and shaded-installations.

Strengths
47.3 kg per kWp

Top 13% of the TOPCon 600-650 W segment, against a median of 53.1.

Notes from the database
  • At 22.8% efficiency, this panel is on par with typical TOPCon 600-650W modules
  • At 227.7 W/m² power density, roof space requirements are typical for TOPCon 600-650W panels
  • At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
  • Weight of 29.1 kg (3.6 kg below TOPCon 600-650W median of 32.7 kg) allows easier transport and roof mounting
  • Ranked #3073 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 615 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.77 % Typical Segment median 22.80%
Vmpp · Impp 40.98 V · 15.01 A Operating point at max power
Voc · Isc 48.90 V · 15.88 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2382×1134×30 mm · 2.70 m² of roof
Weight 29.1 kg Strong Strong · 3.6 kg below median
Cells 132 · TOPCon Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°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 RS8H-M-BD-615W 615 W 22.77% -0.290 29.1 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +35 W, cooler, +2.4 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +30 W, cooler, +2.2 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg +25 W, cooler, +2.0 pp
LR8-66HVD-665M 665 W 24.62% -0.260 33.5 kg +50 W, heavier, +1.9 pp
JKM650-670N-66QL6-BDV (665W class) 665 W 24.62% -0.260 32.5 kg +50 W, heavier, +1.9 pp
HY665-B144DSS 665 W 24.62% -0.260 27.6 kg +50 W, cooler, +1.9 pp
SPDG665-BC132R12 665 W 24.62% -0.260 33.5 kg +50 W, heavier, +1.9 pp
RS8H-M-BD-595W 595 W 22.03% -0.290 29.1 kg -20 W, -0.7 pp
RS8H-M-BD-600W 600 W 22.21% -0.290 29.1 kg -15 W, -0.6 pp
RS8H-M-BD-605W 605 W 22.40% -0.290 29.1 kg -10 W, -0.4 pp
RS8H-M-BD-610W 610 W 22.58% -0.290 29.1 kg Very close match
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +65 W, cooler, +2.4 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +60 W, cooler, +2.2 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +85 W, heavier, +2.2 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +80 W, heavier, +2.1 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +55 W, cooler, +2.0 pp

Found 1119 panels of the same or similar size to this one, within ±10 mm. See them here Found 1125 panels of the same or similar size to this one, within ±25 mm. See them here Found 1236 panels of the same or similar size to this one, within ±50 mm. See them here Found 1917 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 RS8H-M-BD TOPCon panel and is it high for this module class?
The RS8H-M-BD TOPCon series reaches a maximum power output of up to 630 Wp, placing it among the top-performing N-type monocrystalline modules currently on the market. This high output comes from combining TOPCon cell technology, half-cell design, and a multi-busbar (SMBB) layout, which together reduce internal power losses and boost solar energy conversion efficiency.
Are the Resun Solar RS8H-M-BD panels bifacial?
No, the RS8H-M-BD TOPCon series is a monofacial module, generating power from one side only. Instead of bifacial gains, it relies on high-efficiency N-type TOPCon cells and strong resistance to PID degradation and microcracks, making it well suited for standard rooftop and ground-mount installations without needing a reflective surface.
What warranty comes with the RS8H-M-BD TOPCon panels?
The manufacturer offers a 15-year product warranty along with a 30-year linear power output warranty. This means a gradual, predictable performance decline spread over three decades, which lowers the long-term LCOE and increases investment confidence for both residential systems and large-scale solar farms.
Are panels from this series suitable for coastal or agricultural installations?
Yes, the RS8H-M-BD TOPCon series holds certified resistance to salt mist and ammonia exposure, making it a strong choice for coastal environments prone to corrosion as well as agricultural installations, such as livestock buildings, where panels are regularly exposed to ammonia fumes.
How does the TOPCon technology in this series differ from standard PERC panels?
The N-type TOPCon cells used in the RS8H-M-BD deliver higher conversion efficiency and lower degradation over time compared to typical P-type PERC cells. Combined with the half-cell design and SMBB busbar layout, this technology reduces resistive losses, lowers hot-spot risk under partial shading, and improves resistance to PID degradation.
Can the RS8H-M-BD TOPCon panels withstand heavy snow and wind loads?
Yes, the module is engineered for high mechanical load resistance, making it suitable for residential rooftops in heavy-snowfall regions as well as large ground-mount installations exposed to strong winds. The tempered front glass further enhances mechanical durability while maintaining high light transmittance for better low-light performance.
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