--- title: "Solaria SPV660-TG12-132BD 660W Solar Panel - Specs & Review | ComparePV" description: "Solaria SPV660-TG12-132BD 660W solar panel. Specs: 21.28% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solaria-spv660-tg12-132bd" updated: 2026-09-11 --- # Solaria SPV660-TG12-132BD Middle of its segment, modest efficiency 249 panels in the segment TOPCon 650-700 W ## Identity - **Manufacturer:** Solaria - **Model:** SPV660-TG12-132BD - **Series:** SPVxxx-TG12-132BD (660–680W) - **Rated power:** 660 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 650-700 W (249 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 660 W | 665 W | Typical | | | 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 (kg) | 38.0 kg | 34.6 kg | Weak - bottom 8% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | 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 | ### Watch out for - **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. - **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. ## Specification ### Electrical - **Rated power (Pmax):** 660 W - **Efficiency:** 21.28 % - **Voltage at Pmax (Vmp):** 38.81 V - **Current at Pmax (Imp):** 17.01 A - **Open-circuit voltage (Voc):** 46.10 V - **Short-circuit current (Isc):** 17.84 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.275 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes ### Physical - **Length:** 2383 mm - **Width:** 1302 mm - **Thickness:** 30 mm - **Weight:** 38.0 kg - **Area:** 3.10 m2 - **Power density:** 212.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Output after 30 years:** 560 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8795 of 14005 | | Power density | 8718 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 11284 of 14005 | | Warranty | 21 of 14005 | ## About this series 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. ## Notable figures - 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 ## Questions ### 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. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/SPV680-TG12-132BD-053479293e99.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +3.7 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +3.7 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +40 W, cooler, +3.7 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +35 W, cooler, +3.6 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +3.5 pp | | [Solaria SPV665-TG12-132BD](https://comparepv.com/panel/solaria-spv665-tg12-132bd) | 665 W | Very close match | | [Solaria SPV670-TG12-132BD](https://comparepv.com/panel/solaria-spv670-tg12-132bd) | 670 W | +10 W, +0.3 pp | | [Solaria SPV675-TG12-132BD](https://comparepv.com/panel/solaria-spv675-tg12-132bd) | 675 W | +15 W, +0.5 pp | | [Solaria SPV680-TG12-132BD](https://comparepv.com/panel/solaria-spv680-tg12-132bd) | 680 W | +20 W, +0.6 pp | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +145 W, cooler, +3.8 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +140 W, cooler, +3.6 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +135 W, cooler, +3.5 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +130 W, cooler, +3.3 pp | | [Trina Solar TSM-NEG21C.20Q-760](https://comparepv.com/panel/trina-solar-tsm-neg21c-20q-760) | 760 W | +100 W, cooler, +3.2 pp | --- Source: https://comparepv.com/panel/solaria-spv660-tg12-132bd Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.