--- title: "Tata Power Solar TP615LG10B 615W Solar Panel - Specs & Review | ComparePV" description: "Tata Power Solar TP615LG10B 615W solar panel. Specs: 22.08% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/tata-power-solar-tp615lg10b" updated: 2026-09-11 --- # Tata Power Solar TP615LG10B Efficiency leader, weak in heat 217 panels in the segment PERC 600-650 W ## Identity - **Manufacturer:** Tata Power Solar - **Model:** TP615LG10B - **Series:** TPxx0LG10B (Glass-glass) - **Rated power:** 615 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 600-650 W (217 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 615 W | 605 W | Typical | | | Module efficiency | 22.08% | 21.38% | Strong - top 3% | 6,116 | | Power density | 220.8 | 213.8 | Strong - top 3% | 6,039 | | Temperature coefficient | -0.370 | -0.340 | Weak - bottom 2% | 13,081 | | Weight (kg) | 36.0 kg | 34.0 kg | Weak - bottom 18% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.08% | 21.38% | Strong - top 3% | 6,116 | | Power density | 220.8 | 213.8 | Strong - top 3% | 6,039 | | Temperature coefficient | -0.370 | -0.340 | Weak - bottom 2% | 13,081 | | Weight per kWp | 58.5 | 55.7 | Weak - bottom 18% | 11,776 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **22.08% module efficiency** - Top 3% of the PERC 600-650 W segment, against a median of 21.38%. Ranked 6,116th in the whole database. - **220.8 watts per square metre** - Top 3% of the PERC 600-650 W segment, against a median of 213.8. Ranked 6,039th in the whole database. ### Watch out for - **-0.370 %/°C temperature coefficient** - Bottom 2% of the PERC 600-650 W segment, against a median of -0.340. Ranked 13,081st in the whole database. - **58.5 kg per kWp** - Bottom 18% of the PERC 600-650 W segment, against a median of 55.7. - **Best for:** Commercial and utility-scale. - **Not ideal for:** Hot climates and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 615 W - **Efficiency:** 22.08 % - **Voltage at Pmax (Vmp):** 46.68 V - **Current at Pmax (Imp):** 13.18 A - **Open-circuit voltage (Voc):** 54.40 V - **Short-circuit current (Isc):** 13.79 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.370 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 156 - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 2456 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 36.0 kg - **Area:** 2.79 m2 - **Power density:** 220.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 80.0 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.60 % - **Output after 30 years:** 493 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6116 of 14005 | | Power density | 6039 of 14005 | | Temperature coefficient | 13081 of 14005 | | Weight | 11776 of 14005 | | Warranty | 21 of 14005 | ## About this series The Tata Power Solar TPxx0LG10B (glass-glass) series are bifacial modules with a glass-glass construction, designed for high durability and stable operation in demanding conditions. The use of a **glass-glass** architecture increases resistance to moisture, microcracks, and material aging, which realistically reduces the risk of yield losses over the long term. Thanks to the **bifacial** technology, the module can also utilize light reflected from the ground - this is a practical advantage on roofs with light membranes, on ground with proper site preparation, and in industrial installations where every additional percentage of production counts. This series uses monocrystalline cells in an optimized configuration for operation under variable sunlight, which translates to **improved performance in low light** and more predictable yields in the Polish climate. The TPxx0LG10B will be suitable for PV farms, carports, and larger commercial roofs, where **long lifespan** and stable performance over time are the priorities. ## Notable figures - Efficiency of 22.1% is 0.7pp above the \*\*PERC 600-650W\*\* median (21.4%) - 220.8 W/m² power density - 7.0 W/m² more than \*\*PERC 600-650W\*\* median (213.8 W/m²), more power per roof area - At -0.37%/°C, loses 0.03pp more power per degree than \*\*PERC 600-650W\*\* median (-0.34%/°C) - Weight of 36.0 kg is 2.0 kg above \*\*PERC 600-650W\*\* median (34.0 kg) - verify structural support - Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof ## Questions ### What is the difference between the TPxx0LG10B (glass-glass) series and a standard backsheet version? In glass-glass construction the cells are laminated between two glass sheets instead of glass and a polymer backsheet. This makes the module more airtight, less prone to moisture ingress and microcracks, and slower to degrade over time. It also enables bifacial operation, since the rear side stays transparent to light. The trade-off is a heavier panel compared to a backsheet version. ### Are Tata Power Solar TPxx0LG10B panels suitable for a residential sloped roof? This series reaches up to 642 Wp and has large physical dimensions, so it is mainly used on PV farms, carports, and larger commercial or industrial roofs where installation scale matters. It can be installed on a sloped residential roof, but roof load capacity and available mounting space need to be checked first - smaller residential modules are usually a better fit for single-family homes. ### How much extra energy can the bifacial technology provide in these panels? The actual bifacial gain depends on the mounting environment - the brighter the ground surface and the higher the module is raised off the ground, the more reflected light reaches the rear side. In practice, on roofs with a light-colored membrane, gravel, or a properly prepared ground surface, you can expect a few to over ten percent extra output compared to a standard monofacial panel, without increasing the installed area. ### What warranty comes with the TPxx0LG10B modules and what does it cover? Tata Power Solar offers a 12-year product warranty covering material and workmanship defects, plus a 30-year power output warranty. This means the manufacturer guarantees a defined level of power generation over three decades, which is a key factor when calculating the return on investment for a PV installation built around this series. ### Do Tata Power Solar TPxx0LG10B panels perform well in low-light and cooler climate conditions? The monocrystalline PERC cells used in this series are optimized for variable and diffuse irradiance, which translates into better performance under cloudy skies or early morning light. That is a real advantage in a climate like Poland's, where full sun is not the norm for most of the year, and consistent output under such conditions meaningfully affects annual energy yield. ### Is Tata Power Solar a Tier 1 manufacturer, and is it trustworthy for a large PV investment? Yes, Tata Power Solar is a Tier 1 manufacturer headquartered in India, with a long track record in solar cell and module production and a financially stable position confirmed by independent industry rankings. Tier 1 status means lower risk of warranty support issues down the line, which matters most for farm-scale and commercial installations designed to operate for decades. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/tp600lg10b-glass-glass-fbb33b75411c.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +3.1 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +2.9 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +2.7 pp | | [Longi Solar LR8-66HVD-665M](https://comparepv.com/panel/longi-lr8-66hvd-665m) | 665 W | +50 W, cooler, +2.5 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, cooler, +2.5 pp | | [Huayao HY665-B144DSS](https://comparepv.com/panel/huayao-hy665-b144dss) | 665 W | Cooler, lighter, +2.5 pp | | [Sunpro Power SPDG665-BC132R12](https://comparepv.com/panel/sunpro-spdg665-bc132r12) | 665 W | +50 W, cooler, +2.5 pp | | [Tata Power Solar TP570LG10B](https://comparepv.com/panel/tata-power-solar-tp570lg10b) | 570 W | -45 W, -1.6 pp | | [Tata Power Solar TP575LG10B](https://comparepv.com/panel/tata-power-solar-tp575lg10b) | 575 W | -40 W, -1.4 pp | | [Tata Power Solar TP580LG10B](https://comparepv.com/panel/tata-power-solar-tp580lg10b) | 580 W | -35 W, -1.2 pp | | [Tata Power Solar TP585LG10B](https://comparepv.com/panel/tata-power-solar-tp585lg10b) | 585 W | -30 W, -1.1 pp | | [Tata Power Solar TP590LG10TB](https://comparepv.com/panel/tata-power-solar-tp590lg10tb) | 590 W | Lighter, -0.9 pp, -5 yr warranty | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | Cooler, lighter, +3.1 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | Cooler, lighter, +2.9 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +85 W, cooler, +2.9 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +80 W, cooler, +2.8 pp | --- Source: https://comparepv.com/panel/tata-power-solar-tp615lg10b Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.