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Solaria Brand review

SPV660-TG12-132BD

660 Wp TOPCon Bifacial
ComparePV verdict

Middle of its segment, modest efficiency

Rank 3,149 of 14,005
Compare panels Datasheet PDF
Power (Wp)
660
Typical for its class
Efficiency (%)
21.28
Weak · bottom 7%
Density (Wp/m²)
212.7
Weak · bottom 7%
Temp (%/°C)
-0.300
Typical · median -0.290
Weight (kg)
38.0
Weak · 3.4 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Solaria SPVxxx-TG12-132BD (660-680W) series are modules designed for maximum energy yield on a large mounting surface - where every additional kilowatt counts, without the need for extensive structural modifications. The use of N-type TOPCon cells improves performance at higher temperatures and reduces degradation over time, which translates directly into more stable production in Polish conditions. The bifacial design allows for energy recovery from the rear side as well - particularly on light-colored roofs with a membrane or on ground-mounted systems with appropriate ground cover. The 132 half-cut configuration provides improved resistance to shading and lower internal losses, which will be appreciated in complex roof configurations or in row-based installations. Another advantage is the double glass, which increases the module's durability and resistance to environmental factors. This is the ideal choice for PV farms, industrial halls, and commercial projects, where yield, reliability, and long-term profitability are the top priorities.

Ranking

249 panels in the segment TOPCon 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.28% 22.40% Weak · bottom 7% 8,795
Power density 212.7 223.7 Weak · bottom 7% 8,718
Temperature coefficient -0.300 -0.290 Typical 6,093
Weight per kWp 57.6 53.2 Weak · bottom 8% 11,284
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 · 3 caution
Best for

Commercial, utility-scale and shaded-installations.

Not ideal for

Tight roof space, roofs where every square metre has to count and weight-limited structures.

Watch-outs
21.28% module efficiency

Bottom 7% of the TOPCon 650-700 W segment, against a median of 22.40%. Ranked 8,795th in the whole database.

212.7 watts per square metre

Bottom 7% of the TOPCon 650-700 W segment, against a median of 223.7. Ranked 8,718th in the whole database.

57.6 kg per kWp

Bottom 8% of the TOPCon 650-700 W segment, against a median of 53.2. Ranked 11,284th in the whole database.

Notes from the database
  • Efficiency of 21.3% is 1.1pp below the TOPCon 650-700W median (22.4%)
  • 212.7 W/m² power density is 11.0 W/m² below TOPCon 650-700W median (223.7 W/m²) - requires larger installation area
  • At -0.30%/°C, hot weather performance is typical for TOPCon 650-700W panels
  • At 38.0 kg (3.4 kg above TOPCon 650-700W median of 34.6 kg), requires checking roof load capacity
  • Ranked #8795 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 660 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.28 % Weak Segment median 22.40%
Vmpp · Impp 38.81 V · 17.01 A Operating point at max power
Voc · Isc 46.10 V · 17.84 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2383×1302×30 mm · 3.10 m² of roof
Weight 38.0 kg Weak Weak · 3.4 kg above median
Cells 132 · TOPCon Monocrystalline
Coefficient Pmax -0.300 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.275 · 0.045 %/°C
NOCT 45 °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 84.8 % Equals 560 W guaranteed
Degradation 2.00 % First year

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
-0.300 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solaria SPV660-TG12-132BD 660 W 21.28% -0.300 38.0 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +3.9 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Cooler, lighter, +3.9 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, lighter, +3.7 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +3.7 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +40 W, cooler, +3.7 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +35 W, cooler, +3.6 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +3.5 pp
SPV665-TG12-132BD 665 W 21.44% -0.300 38.0 kg Very close match
SPV670-TG12-132BD 670 W 21.59% -0.300 38.0 kg +10 W, +0.3 pp
SPV675-TG12-132BD 675 W 21.76% -0.300 38.0 kg +15 W, +0.5 pp
SPV680-TG12-132BD 680 W 21.92% -0.300 38.0 kg +20 W, +0.6 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +145 W, cooler, +3.8 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +140 W, cooler, +3.6 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +135 W, cooler, +3.5 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +130 W, cooler, +3.3 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +100 W, cooler, +3.2 pp

Found 1390 panels of the same or similar size to this one, within ±10 mm. See them here Found 1400 panels of the same or similar size to this one, within ±25 mm. See them here Found 1400 panels of the same or similar size to this one, within ±50 mm. See them here Found 1432 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty comes with the Solaria SPVxxx-TG12-132BD series?
The Solaria SPVxxx-TG12-132BD series includes a 12-year product warranty covering manufacturing defects and a 30-year linear power output warranty. Over those 30 years, the manufacturer guarantees that the modules maintain a specified minimum power level. Thanks to N-type TOPCon cell technology and dual-glass construction, annual degradation rates are lower than in conventional PERC modules, making the power warranty realistically achievable throughout the entire service life.
What is TOPCon technology and why does the SPVxxx-TG12-132BD series use it?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that uses a thin tunnel oxide layer to reduce carrier recombination at the rear contact. In practical terms, this means higher efficiency (up to 680 Wp per module), better performance at elevated temperatures, and reduced LID/LeTID degradation compared to PERC cells. For installations in climates where rooftop temperatures can exceed 60°C in summer, the lower temperature coefficient of TOPCon modules translates into measurably higher annual energy yield.
Are the Solaria SPVxxx-TG12-132BD panels suitable for industrial rooftops or utility-scale PV farms?
Yes, the 660–680 W series was designed specifically for large-scale applications: industrial and commercial rooftops and ground-mounted PV farms. The high unit power of up to 680 Wp reduces the module count and mounting costs for a given system capacity. The 132 half-cut cell layout minimizes shading losses in row-based configurations, while the dual-glass construction provides the mechanical and environmental durability required in exposed outdoor installations.
How much extra energy does the bifacial design of the SPVxxx-TG12-132BD actually deliver in real-world conditions?
Bifacial gain depends on ground albedo. Ground-mounted systems with light gravel or grass typically see 5–15% additional annual yield from the rear side. Rooftops covered with white EPDM or TPO membranes can deliver 5–10% extra energy. Dark bitumen roofs offer minimal bifacial gain. The dual-glass construction in the TG12 series protects the rear cell surface, which is a prerequisite for fully capturing bifacial production over the module's lifetime.
Do the Solaria SPVxxx-TG12-132BD panels perform well in winter and overcast conditions?
N-type TOPCon cells have a lower power temperature coefficient than standard PERC modules, meaning smaller losses at high temperatures and relatively better performance in cooler, diffuse-light conditions. Below 25°C the modules often produce slightly above their STC-rated power. The 132 half-cut layout also reduces losses caused by partial shading from snow accumulating at the bottom edge of the module, which is a practical advantage in continental European climates with regular winter snowfall.
How does the Solaria SPVxxx-TG12-132BD series compare to older PERC modules from the same manufacturer?
The key differences are cell technology and module construction. The SPVxxx-TG12-132BD uses N-type TOPCon cells instead of P-type PERC, delivering higher efficiency (up to 21.9%), a lower annual degradation rate, and better LID resistance. The bifacial dual-glass build replaces a conventional backsheet, improving mechanical durability and enabling rear-side energy harvest. A single 680 W module in this series effectively replaces one or two older lower-wattage PERC panels, reducing BoS costs and structural load on the mounting system.
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