--- title: "Talesun TALESUN-TH3G66M-615 615W Solar Panel - Specs & Review | ComparePV" description: "Talesun TALESUN-TH3G66M-615 615W solar panel. Specs: 22.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/talesun-talesun-th3g66m-615" updated: 2026-09-11 --- # Talesun TALESUN-TH3G66M-615 Solid all-round for its segment 76 panels in the segment HJT 600-650 W ## Identity - **Manufacturer:** Talesun - **Model:** TALESUN-TH3G66M-615 - **Series:** HYPRO TH3G66M - **Rated power:** 615 W - **Cell technology:** HJT - **Bifacial:** yes ## How it compares Compared against segment HJT 600-650 W (76 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 615 W | 625 W | Typical | | | Module efficiency | 22.80% | 22.60% | Typical | 2,714 | | Power density | 227.7 | 225.8 | Typical | 3,077 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight (kg) | 32.6 kg | 33.6 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.80% | 22.60% | Typical | 2,714 | | Power density | 227.7 | 225.8 | Typical | 3,077 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight per kWp | 53.0 | 54.7 | Typical | 6,755 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ## Specification ### Electrical - **Rated power (Pmax):** 615 W - **Efficiency:** 22.80 % - **Voltage at Pmax (Vmp):** 40.96 V - **Current at Pmax (Imp):** 15.03 A - **Open-circuit voltage (Voc):** 49.05 V - **Short-circuit current (Isc):** 15.86 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.240 %/degC - **Temperature coefficient of Voc:** -0.220 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** HJT - **Cell count:** 132 - **Bifacial:** yes ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 32.6 kg - **Area:** 2.70 m2 - **Power density:** 227.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 2714 of 14005 | | Power density | 3077 of 14005 | | Temperature coefficient | 13 of 14005 | | Weight | 6755 of 14005 | | Warranty | 21 of 14005 | ## About this series The Talesun HYPRO TH3G66M photovoltaic panel series is a response to the growing demand from investors to maximize yields from limited mounting space. Thanks to the use of advanced **Half-Cut cell technology** based on large silicon wafers, these modules are characterized by significantly lower energy losses and higher resistance to the negative effects of partial shading. A key differentiator of this series is the **use of Multi-Busbar (MBB) technology**, which not only improves current flow but also minimizes the risk of micro-cracks, directly translating into the longevity of the installation. Designers focused on eliminating the phenomenon of light-induced degradation through **precise gallium doping of silicon**, which guarantees stable operation and maintains high efficiency over many years of use. These models are an ideal solution for large commercial projects and solar farms where a low LCOE is key. By choosing the HYPRO TH3G66M series, you gain investment certainty based on **high power density**, which outperforms standard market solutions in terms of efficiency in difficult weather conditions. This is a solid foundation for systems requiring uncompromising reliability and a fast return on investment. ## Notable figures - At 22.8% efficiency, this panel is on par with typical \*\*HJT 600-650W\*\* modules - Power density of 227.7 W/m² matches the \*\*HJT 600-650W\*\* median - Temperature coefficient of -0.24%/°C matches the \*\*HJT 600-650W\*\* median - At 32.6 kg, weight matches the \*\*HJT 600-650W\*\* median - Bifaciality factor of 90% can add 4-14% extra yield with reflective mounting surface ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/600-635-HYPRO_TH3G66M_0BB_Silver_20250311_EN-909fdb28ea24.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +35 W, lighter, +2.4 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +30 W, lighter, +2.2 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +25 W, lighter, +2.0 pp | | [Longi Solar LR8-66HVD-665M](https://comparepv.com/panel/longi-lr8-66hvd-665m) | 665 W | +50 W, hotter, +1.8 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (665W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-665w-class) | 665 W | +50 W, hotter, +1.8 pp | | [Huayao HY665-B144DSS](https://comparepv.com/panel/huayao-hy665-b144dss) | 665 W | +50 W, lighter, +1.8 pp | | [Sunpro Power SPDG665-BC132R12](https://comparepv.com/panel/sunpro-spdg665-bc132r12) | 665 W | +50 W, hotter, +1.8 pp | | [Talesun TM3G66M-600](https://comparepv.com/panel/talesun-tm3g66m-600) | 600 W | -15 W, hotter, -0.6 pp | | [Talesun TM3G66M-605](https://comparepv.com/panel/talesun-tm3g66m-605) | 605 W | Hotter, heavier, -0.4 pp | | [Talesun TM9G72M-610W](https://comparepv.com/panel/talesun-tm9g72m-610w) | 610 W | Hotter, heavier | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +65 W, lighter, +2.4 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +60 W, lighter, +2.2 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +85 W, hotter, +2.2 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +80 W, hotter, +2.1 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +55 W, lighter, +2.0 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +55 W, lighter, +2.0 pp | --- Source: https://comparepv.com/panel/talesun-talesun-th3g66m-615 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.