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RedSolar Brand review

CETC-635TR(GDF)/132

635 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, weak in heat

Rank 2,321 of 14,005
Compare panels Datasheet PDF
Power (Wp)
635
Strong · top 16%
Efficiency (%)
22.72
Typical · median 22.80%
Density (Wp/m²)
227.2
Typical · median 227.7
Temp (%/°C)
-0.300
Weak · bottom 19%
Weight (kg)
33.5
Typical · median 32.7 kg
Warranty (yrs)
30
Typical · median 30 yrs

The M10R-MBB TOPCon Mono Bifacial series is a next-generation dual-sided module built on 132 N-type TOPCon half-cut cells, designed for installations aiming to squeeze maximum output from every square meter of roof or ground space. Thanks to SMBB (Super Multi Busbar) technology, the panel more efficiently collects the current generated by the cell, reducing resistive losses and improving module uniformity even under partial shading. The bifacial construction allows the module to harvest additional energy reflected from the surrounding surface, meaningfully boosting energy yield compared to conventional monofacial panels, especially on light-colored or reflective terrain. The module is PID resistant, thanks to carefully selected encapsulation materials, ensuring stable performance throughout its entire operating lifetime. Its low-resistance, high-current, low-voltage electrical profile helps lower system BOS costs by reducing spending on cabling and balance-of-system components. The series is aimed at both commercial investors and larger prosumer installations that expect high reliability and a predictable return on investment, backed by a long-term power warranty covering the module's full product lifecycle.

Ranking

1,086 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.72% 22.80% Typical 3,245
Power density 227.2 227.7 Typical 3,252
Temperature coefficient -0.300 -0.290 Weak · bottom 19% 6,093
Weight per kWp 52.8 53.1 Typical 6,429
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 3 caution
Best for

Utility-scale and commercial.

Not ideal for

Hot climates.

Watch-outs
-0.300 %/°C temperature coefficient

Bottom 19% of the TOPCon 600-650 W segment, against a median of -0.290.

What owners get
N-type TOPCon technology with SMBB

Half-cut TOPCon cells combined with SMBB (Super Multi Busbar) technology reduce resistive losses and improve module performance under partial shading, translating into higher and more stable energy yield compared to legacy PERC modules.

Bifacial design

The bifacial construction captures additional energy reflected from the ground surface, which for bright or reflective surfaces (e.g., white-coated roofs, sandy terrain) meaningfully boosts energy output versus monofacial panels of the same nominal power.

30-year linear power warranty

The 30-year power warranty matches the current benchmark for top-tier TOPCon products (e.g., Longi Hi-MO X10, Sunpro TOPCon 210R), giving investors predictable returns over the entire operating lifetime of the installation.

PID degradation resistance

Carefully selected encapsulation materials reduce the risk of potential-induced degradation (PID), leading to more stable long-term module performance, particularly in high-voltage system installations.

Lower installation BoS cost

The high-current, low-voltage operating characteristic reduces spending on cabling and system components (BoS), which matters for large commercial installations where balance-of-system costs represent a significant share of the budget.

Trade-offs
Efficiency below segment leaders

The maximum module efficiency of 22.72% is noticeably lower than segment leaders in the 625-635 Wp bifacial TOPCon class — Longi Hi-MO X10 (23.5%) and Sunpro Power TOPCon 210R (23.51%). The ~0.8 pp gap means less power per m² for a comparable module footprint, which matters for space-constrained roof installations.

No confirmed BNEF Tier-1 status

Unlike manufacturers such as Longi or Trina, no confirmation was found of RedSolar's inclusion on the current BloombergNEF Tier-1 list, which may be a limiting factor for institutional investors and banks financing non-recourse projects that rely on this bankability signal.

Notes from the database
  • At 22.7% efficiency, this panel is on par with typical TOPCon 600-650W modules
  • At 227.2 W/m² power density, roof space requirements are typical for TOPCon 600-650W panels
  • Temperature coefficient of -0.30%/°C matches the TOPCon 600-650W median
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
  • Ranked #3245 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 635 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.72 % Typical Segment median 22.80%
Vmpp · Impp 39.05 V · 16.26 A Operating point at max power
Voc · Isc 47.46 V · 17.13 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2465×1134×30 mm · 2.80 m² of roof
Weight 33.5 kg Typical Typical · median 32.7 kg
Cells 132 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.300 %/°C Weak bottom 19% of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 555 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by RedSolar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 635 Wp appear here. The rest cover the whole series.

P-V Curves of PV Module P-V Curves of PV Module Whole series I-V Curves of PV Module I-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 RedSolar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
RedSolar CETC-635TR(GDF)/132 635 W 22.72% -0.300 33.5 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +2.5 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +45 W, lighter, +2.5 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +40 W, lighter, +2.3 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +2.3 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +2.1 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg Cooler, lighter, +2.1 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +2.1 pp
CETC-620T(GDF)/156 620 W 22.18% -0.300 33.2 kg -15 W, -0.5 pp
CETC-625T(GDF)/156 625 W 22.36% -0.300 33.2 kg -10 W, -0.4 pp
CETC-630T(GDF)/156 630 W 22.54% -0.300 33.2 kg Very close match
CETC-640T(GDF)/156 640 W 22.90% -0.300 33.2 kg Very close match
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +65 W, cooler, +2.3 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +60 W, cooler, +2.2 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +35 W, cooler, +2.1 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 the RedSolar M10R-MBB TOPCon Mono Bifacial panel?
The M10R-MBB series reaches a maximum power output of up to 635 Wp. This is achieved through 132 N-Type TOPCon half-cut cells combined with SMBB technology, which together boost conversion efficiency and deliver higher power output per panel area compared to conventional PERC modules.
How does TOPCon technology differ from PERC in RedSolar panels?
TOPCon (Tunnel Oxide Passivated Contact) is a newer N-Type cell technology that reduces surface recombination losses more effectively than the P-Type structure used in PERC cells. As a result, TOPCon panels like the M10R-MBB series achieve higher efficiency, a lower temperature coefficient, and slower power degradation over time.
How much extra energy does the bifacial design of the M10R-MBB actually generate?
The additional rear-side energy gain depends on ground albedo and mounting height, typically ranging from a few percent up to the low teens annually. On bright surfaces such as white gravel or reflective roofing, the gain is noticeably higher than on grass or dark ground.
What warranty comes with the RedSolar M10R-MBB panels?
The manufacturer provides a 12-year product warranty and a 30-year linear power output warranty. This means the module maintains its rated performance level throughout its service life as specified in the datasheet, giving investors predictability when calculating return on investment.
Are the M10R-MBB panels PID-resistant and suitable for large commercial installations?
Yes, the module uses carefully selected encapsulation materials resistant to PID degradation, ensuring stable performance even in large strings with high system voltage. Combined with lower BoS costs thanks to its high-current, low-voltage output characteristics, the series is well suited for commercial and larger prosumer installations.
Does SMBB technology in RedSolar panels improve shading tolerance?
Yes, Super Multi Busbar (SMBB) technology improves current collection across the cell surface and reduces resistive losses, resulting in more uniform module performance under partial shading, such as from a chimney or neighboring building, compared to panels with fewer busbars.
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