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Resun Solar Brand review

RS8H-M-625

625 Wp TOPCon
ComparePV verdict

Light for its output, no clear weak spot

Rank 1,789 of 14,005
Compare panels Datasheet PDF
Power (Wp)
625
Typical for its class
Efficiency (%)
23.14
Typical · median 22.80%
Density (Wp/m²)
231.4
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 TOPCON series brings next-generation photovoltaic modules built on monocrystalline TOPCon cells with half-cut technology, using an advanced multi-busbar (SMBB) layout that reduces internal power losses and significantly improves the module's resistance to microcracks and busbar damage. The half-cut cell design further minimizes the risk of hot-spot formation under partial shading, resulting in greater long-term durability under real-world operating conditions. These panels stand out with their strong PID resistance, which limits power degradation over time and directly lowers the LCOE of the generated energy. Thanks to a high-transmittance, anti-reflective tempered glass front cover, the module maintains solid performance even in low-light conditions, while certified resistance to salt mist and ammonia makes it a strong choice for agricultural and coastal installations. Reinforced mechanical construction ensures reliable operation under heavy wind and snow loads, which matters when installing in more demanding climates. This series suits installers and investors looking for panels that combine high efficiency, long-term output stability, and environmental resilience, backed by a low annual power decline over a 30-year lifespan.

Ranking

1,086 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.14% 22.80% Typical 1,509
Power density 231.4 227.7 Typical 1,513
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 46.6 53.1 Strong · top 10% 1,227
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, shaded-installations and agrivoltaic.

Strengths
46.6 kg per kWp

Top 10% of the TOPCon 600-650 W segment, against a median of 53.1. Ranked 1,227th in the whole database.

Notes from the database
  • Efficiency of 23.1% matches the TOPCon 600-650W median
  • Power density of 231.4 W/m² packs 3.7 W/m² more into the same footprint vs TOPCon 600-650W median (227.7 W/m²)
  • At -0.29%/°C, hot weather performance is typical for TOPCon 600-650W panels
  • At 29.1 kg, this panel is 3.6 kg lighter than TOPCon 600-650W median (32.7 kg) - easier handling during installation
  • #1509 for efficiency, #2165 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 625 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.14 % Typical Segment median 22.80%
Vmpp · Impp 41.37 V · 15.11 A Operating point at max power
Voc · Isc 49.30 V · 15.98 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2382×1134×35 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-625 625 W 23.14% -0.290 29.1 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +25 W, cooler, +2.1 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +50 W, cooler, +1.9 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +1.9 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +45 W, cooler, +1.7 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +45 W, cooler, +1.7 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +1.7 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +45 W, heavier, +1.7 pp
RS8H-M-BD-595W 595 W 22.03% -0.290 29.1 kg -30 W, -1.1 pp
RS8H-M-BD-600W 600 W 22.21% -0.290 29.1 kg -25 W, -0.9 pp
RS8H-M-BD-605W 605 W 22.40% -0.290 29.1 kg -20 W, -0.7 pp
RS8H-M-BD-610W 610 W 22.58% -0.290 29.1 kg -15 W, -0.6 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +55 W, cooler, +2.1 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +75 W, heavier, +1.9 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +70 W, heavier, +1.8 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 TOPCon series, and who is it designed for?
The RS8H-M TOPCon panels reach a maximum output of up to 630 Wp, making them a strong choice for both large commercial installations and utility-scale PV farms, as well as extensive residential systems where maximizing use of available roof or ground space matters. The high per-module power reduces the number of panels needed to reach a target system size, lowering mounting structure and installation labor costs.
How does TOPCon technology in the RS8H-M differ from conventional PERC panels?
TOPCon (Tunnel Oxide Passivated Contact) is a newer monocrystalline cell technology that uses an additional passivation layer to reduce carrier recombination, achieving higher conversion efficiency than standard PERC cells. Combined with half-cut cell design and the multi-busbar (SMBB) structure, this results in higher energy yield from the same surface area and lower power losses over the module's lifetime.
What warranty comes with the RS8H-M TOPCon panels?
Resun Solar provides a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This means a low annual power degradation rate over that period, resulting in predictable energy production and a favorable LCOE for the installation even three decades after commissioning.
Do RS8H-M TOPCon panels perform well in low-light or partially shaded conditions?
Yes, the high-transmittance anti-reflective tempered glass maintains solid performance even under low irradiance, such as during winter or overcast days. In addition, the half-cut cell design reduces the risk of hot spots under partial shading, for example from a chimney or nearby tree, improving the safety and long-term durability of the installation.
Are RS8H-M TOPCon panels suitable for agricultural or coastal installations?
Yes, the modules carry certified resistance to salt mist and ammonia, making them well suited for coastal installations as well as agricultural sites where panels may be exposed to ammonia fumes from livestock. High PID resistance further limits power degradation under these demanding environmental conditions.
Can the RS8H-M TOPCon panels withstand heavy snow and wind loads?
Yes, the panels feature a reinforced mechanical frame designed to handle high wind and snow loads, which is important for installations in regions with harsher climate conditions, such as roofs prone to snow accumulation in winter. The sturdy frame and tempered glass increase safety and durability throughout the warranty period.
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