--- title: "Sunova TS-BGT66(700)-G12 700W Solar Panel - Specs & Review | ComparePV" description: "Sunova TS-BGT66(700)-G12 700W solar panel. Specs: 22.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunova-ts-bgt66-700-g12" updated: 2026-09-11 --- # Sunova TS-BGT66(700)-G12 Middle of its segment, modest efficiency 90 panels in the segment N-type 700-750 W ## Identity - **Manufacturer:** Sunova - **Model:** TS-BGT66(700)-G12 - **Series:** Tangra L Pro HD - **Rated power:** 700 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 700-750 W (90 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 700 W | 710 W | Weak - bottom 10% | | | Module efficiency | 22.50% | 22.88% | Weak - bottom 3% | 4,222 | | Power density | 225.3 | 228.6 | Weak - bottom 10% | 3,989 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 16% | 6,093 | | Weight (kg) | 37.8 kg | 38.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.50% | 22.88% | Weak - bottom 3% | 4,222 | | Power density | 225.3 | 228.6 | Weak - bottom 10% | 3,989 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 16% | 6,093 | | Weight per kWp | 54.0 | 53.5 | Typical | 8,183 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **22.50% module efficiency** - Bottom 3% of the N-type 700-750 W segment, against a median of 22.88%. Ranked 4,222nd in the whole database. - **225.3 watts per square metre** - Bottom 10% of the N-type 700-750 W segment, against a median of 228.6. Ranked 3,989th in the whole database. - **-0.300 %/°C temperature coefficient** - Bottom 16% of the N-type 700-750 W segment, against a median of -0.290. - **Best for:** Commercial, utility-scale, hot-climate and shaded-installations. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 700 W - **Efficiency:** 22.50 % - **Voltage at Pmax (Vmp):** 40.50 V - **Current at Pmax (Imp):** 17.29 A - **Open-circuit voltage (Voc):** 48.60 V - **Short-circuit current (Isc):** 18.32 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 30.00 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 37.8 kg - **Area:** 3.11 m2 - **Power density:** 225.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 612 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4222 of 14005 | | Power density | 3989 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 8183 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunova Tangra L Pro HD solar panel series represents a breakthrough in energy yield optimization through the use of advanced **N-type TOPCon cell technology**. The use of this solution allows for the near-complete elimination of the LID degradation phenomenon, which, combined with excellent PID resistance, guarantees stable power for decades. These modules are characterized by a **high bifaciality factor**, meaning they can generate additional energy from reflected radiation, which is key to increasing the profitability of ground-mounted farms and large commercial roofs. The **Bifacial Double Glass** construction not only reinforces the mechanical structure of the panel but also provides extreme resistance to harsh weather conditions, including high humidity and snow loads. The Tangra L Pro HD series addresses the issue of performance drops at high temperatures through an **exceptionally low temperature coefficient**, distinguishing it from standard market solutions. Thanks to the use of precision Half-Cut cell technology, these panels perform excellently in partial shading conditions, minimizing internal losses. It is a product dedicated to demanding business investors and developers who care about the lowest Levelized Cost of Energy (LCOE) and maximum reliability of PV systems. ## Notable figures - Efficiency of 22.5% matches the \*\*N-type 700-750W\*\* median - 225.3 W/m² power density is 3.3 W/m² below \*\*N-type 700-750W\*\* median (228.6 W/m²) - requires larger installation area - Temperature coefficient of -0.30%/°C matches the \*\*N-type 700-750W\*\* median - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - In the top 30% for efficiency among all N-type panels ## Questions ### What is the maximum power output of the Sunova Tangra L Pro HD panels? The Tangra L Pro HD series reaches a maximum power output of up to 720 Wp. This high output is achieved through N-type TOPCon cell technology combined with precise Half-Cut cell cutting, which minimizes internal losses. A higher power rating per module means fewer panels are needed to reach a target system size, reducing mounting structure and installation labor costs. ### What warranty comes with the Sunova Tangra L Pro HD panels? The manufacturer provides a 15-year product warranty and a 30-year linear power output warranty. This means that even after three decades of operation, the panel is expected to retain a significant share of its original rated power. This level of coverage is typical for modern N-type modules and reflects the manufacturer's confidence in the durability of the cell technology used. ### What is bifaciality, and do the Tangra L Pro HD panels have it? Yes, the Tangra L Pro HD modules are bifacial, meaning they generate electricity from both the front and rear side of the panel by capturing reflected light from the surrounding surface. Thanks to the Bifacial Double Glass construction, the additional energy yield can range from a few to over ten percent, especially in ground-mounted installations over bright or reflective surfaces such as gravel or white roofing membrane. ### Are the Sunova Tangra L Pro HD panels suitable for solar farms and large commercial roofs? Yes, this series is designed for large ground-mount installations and commercial flat roofs where minimizing the levelized cost of energy (LCOE) is a priority. The high per-module power output, bifacial design, and robust Bifacial Double Glass construction resistant to humidity and snow loads make it a strong choice for investors seeking maximum reliability at utility scale. ### Does N-type TOPCon technology in the Tangra L Pro HD reduce power degradation? Yes, the N-type TOPCon cells virtually eliminate light-induced degradation (LID), the power loss that typically occurs during a panel's first hours of operation. The technology also offers excellent PID resistance, allowing the module to maintain stable performance over many years, which translates into higher real-world energy yield compared to conventional P-type panels. ### Do the Sunova Tangra L Pro HD panels perform well in high temperatures? Yes, the Tangra L Pro HD series features an exceptionally low temperature coefficient, resulting in smaller power losses on hot days compared to standard market modules. This is a key advantage in high-irradiance regions with elevated ambient temperatures, where modules regularly operate well above the STC reference test temperature. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Tangra_L_Pro_HD_TS-BGT66700-720-G12_EN_V20241226-8ce8c833cd97.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | -50 W, lighter, +2.7 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +2.7 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +2.5 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, lighter, +2.5 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Cooler, lighter, +2.4 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +2.3 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | Cooler, lighter, +2.3 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | Cooler, lighter, +2.3 pp | | [Sunova RS645~665S9B-132 (645W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-645w) | 645 W | -55 W, hotter, -1.7 pp | | [Sunova RS645~665S9B-132 (650W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-650w) | 650 W | -50 W, hotter, -1.6 pp | | [Sunova RS645~665S9B-132 (655W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-655w) | 655 W | Hotter, -1.4 pp, -5 yr warranty | | [Sunova RS645~665S9B-132 (660W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-660w) | 660 W | Hotter, -1.3 pp, -5 yr warranty | | [Sunova RS645~665S9B-132 (665W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-665w) | 665 W | Hotter, -1.1 pp, -5 yr warranty | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +105 W, cooler, +2.6 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +100 W, cooler, +2.4 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +95 W, cooler, +2.3 pp | --- Source: https://comparepv.com/panel/sunova-ts-bgt66-700-g12 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.