--- title: "Sunova TS-BGT66(695)-G12 695W Solar Panel - Specs & Review | ComparePV" description: "Sunova TS-BGT66(695)-G12 695W solar panel. Specs: 22.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sunova-ts-bgt66-695-g12" updated: 2026-09-11 --- # Sunova TS-BGT66(695)-G12 Middle of its segment, heavy for its output 109 panels in the segment N-type 650-700 W ## Identity - **Manufacturer:** Sunova - **Model:** TS-BGT66(695)-G12 - **Series:** TS-BGT66-G12 (695–720 W) - **Rated power:** 695 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 650-700 W (109 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 695 W | 660 W | Strong - top 5% | | | Module efficiency | 22.40% | 23.30% | Typical | 4,774 | | Power density | 223.7 | 233.2 | Typical | 4,877 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 38.5 kg | 33.5 kg | Weak - bottom 13% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.40% | 23.30% | Typical | 4,774 | | Power density | 223.7 | 233.2 | Typical | 4,877 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 55.4 | 50.9 | Weak - bottom 13% | 9,818 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **55.4 kg per kWp** - Bottom 13% of the N-type 650-700 W segment, against a median of 50.9. - **Best for:** Utility-scale. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 695 W - **Efficiency:** 22.40 % - **Voltage at Pmax (Vmp):** 40.30 V - **Current at Pmax (Imp):** 17.25 A - **Open-circuit voltage (Voc):** 48.30 V - **Short-circuit current (Isc):** 18.28 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 38.5 kg - **Area:** 3.11 m2 - **Power density:** 223.7 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:** 607 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4774 of 14005 | | Power density | 4877 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 9818 of 14005 | | Warranty | 21 of 14005 | ## About this series The Sunova TS-BGT66-G12 series (695-720 W) was designed with the goal of maximizing yield from large-scale installations, where every square meter of the structure and every hour of the installation team's work matters. These are **bifacial modules in a glass-glass configuration**, effectively utilizing reflected light from the ground as well, facilitating higher energy production without expanding the farm. The key advantage is the **N-type TOPCon cell technology** - ensuring more stable performance over time and reduced susceptibility to typical initial losses, making the design stabilize over the long term. Additionally, the **G12 format** and the module architecture designed for high power density allow for reducing BOS costs and logistics in large volumes. This series will excel primarily in utility-scale PV farms and projects, even in challenging environmental conditions, thanks to the **high mechanical strength of the glass-glass construction**, which genuinely reduces the risk of microcracks and claims. It is the choice for investors seeking predictable yields and longevity, rather than compromises. ## Notable figures - Module efficiency of 22.4% is 0.9pp below average for \*\*N-type 650-700W\*\* panels (median: 23.3%) - Power density of 223.7 W/m² is 9.5 W/m² below \*\*N-type 650-700W\*\* median (233.2 W/m²) - needs more roof space - At -0.29%/°C, hot weather performance is typical for \*\*N-type 650-700W\*\* panels - At 38.5 kg (5.0 kg above \*\*N-type 650-700W\*\* median of 33.5 kg), requires checking roof load capacity - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### What type of installation is the Sunova TS-BGT66-G12 series suited for? The TS-BGT66-G12 series (695-720 W) is designed for large-scale PV farms and utility-scale projects, where high unit power and low cost per watt matter most. The large G12 format and glass-glass construction work best for ground-mount installations and large industrial rooftops, rather than typical residential pitched roofs. ### How does a bifacial glass-glass panel differ from a standard glass-backsheet panel? A bifacial glass-glass panel like the TS-BGT66-G12 generates energy from both sides of the module, capturing light reflected off the ground, roof, or albedo surface beneath the array, boosting yield by several percent or more without increasing the array's footprint. The glass-on-both-sides design, instead of a rear backsheet, also improves mechanical durability and extends module lifespan in harsh conditions. ### What is N-type TOPCon technology and is it worth choosing? TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that reduces surface recombination losses and delivers more stable performance over the module's lifetime than older P-type PERC cells. In practice, this means lower initial power degradation and more predictable energy yield, which translates into a better return on investment for large utility projects over the long term. ### What warranty comes with Sunova TS-BGT66-G12 panels? Sunova offers a 15-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. This means the panel should still retain a significant share of its original rated power after 30 years, matching the best offers currently available for bifacial N-type modules. ### Is Sunova a tier-1 manufacturer, and where are TS-BGT66-G12 panels made? Sunova is not currently listed as a tier-1 manufacturer under the BloombergNEF classification, though it produces modules in China using modern N-type TOPCon technology. Lack of tier-1 status doesn't necessarily mean lower technical quality, but it's worth considering if project financing requires panels from that list. ### Are bifacial glass-glass panels more resistant to microcracks? Yes, the glass-glass construction used in the TS-BGT66-G12 series provides significantly higher mechanical rigidity than traditional glass-backsheet designs, meaningfully reducing the risk of cell microcracks during transport, installation, and operation in harsh climates. This results in fewer warranty claims and more predictable energy production throughout the 30-year power warranty period. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ts-bgt66-695-720-g12-ed39971a6939.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | -45 W, lighter, +2.8 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +2.8 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +2.6 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | -50 W, lighter, +2.6 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Cooler, lighter, +2.6 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | Cooler, lighter, +2.5 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | Cooler, lighter, +2.4 pp | | [Sunova RS645~665S9B-132 (645W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-645w) | 645 W | Hotter, lighter, -1.6 pp | | [Sunova RS645~665S9B-132 (650W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-650w) | 650 W | Hotter, lighter, -1.5 pp | | [Sunova RS645~665S9B-132 (655W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-655w) | 655 W | Hotter, lighter, -1.3 pp | | [Sunova RS645~665S9B-132 (660W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-660w) | 660 W | Hotter, lighter, -1.2 pp | | [Sunova RS645~665S9B-132 (665W)](https://comparepv.com/panel/thornova-rs645-665s9b-132-665w) | 665 W | Hotter, lighter, -1.0 pp | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +110 W, cooler, +2.7 pp | | [AIKO AIKO-A800-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a800-grh78dw) | 800 W | +105 W, cooler, +2.5 pp | | [AIKO AIKO-A795-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a795-grh78dw) | 795 W | +100 W, cooler, +2.4 pp | | [AIKO AIKO-A790-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a790-grh78dw) | 790 W | +95 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/sunova-ts-bgt66-695-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.