--- title: "Tata Power Solar TP590LG10TB 590W Solar Panel - Specs & Review | ComparePV" description: "Tata Power Solar TP590LG10TB 590W solar panel. Specs: 21.18% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/tata-power-solar-tp590lg10tb" updated: 2026-09-11 --- # Tata Power Solar TP590LG10TB Middle of its segment, weak in heat 589 panels in the segment PERC 550-600 W ## Identity - **Manufacturer:** Tata Power Solar - **Model:** TP590LG10TB - **Series:** TPxxxLG10TB - **Rated power:** 590 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 550-600 W (589 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 590 W | 560 W | Strong - top 17% | | | Module efficiency | 21.18% | 21.29% | Typical | 9,216 | | Power density | 211.8 | 212.9 | Typical | 9,158 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 5% | 12,345 | | Weight (kg) | 31.0 kg | 30.8 kg | Typical | | | Performance warranty | 25 yrs | 27 yrs | Weak - bottom 24% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.18% | 21.29% | Typical | 9,216 | | Power density | 211.8 | 212.9 | Typical | 9,158 | | Temperature coefficient | -0.360 | -0.350 | Weak - bottom 5% | 12,345 | | Weight per kWp | 52.5 | 52.7 | Typical | 6,152 | | Performance warranty | 25 yrs | 27 yrs | Weak - bottom 24% | 9,798 | ### Watch out for - **-0.360 %/°C temperature coefficient** - Bottom 5% of the PERC 550-600 W segment, against a median of -0.350. Ranked 12,345th in the whole database. - **25 year performance warranty** - Bottom 24% of the PERC 550-600 W segment, against a median of 27 yrs. - **Best for:** Utility-scale and shaded-installations. - **Not ideal for:** Hot climates and owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 590 W - **Efficiency:** 21.18 % - **Voltage at Pmax (Vmp):** 46.18 V - **Current at Pmax (Imp):** 12.78 A - **Open-circuit voltage (Voc):** 53.90 V - **Short-circuit current (Isc):** 13.29 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/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 ### Physical - **Length:** 2456 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 31.0 kg - **Area:** 2.79 m2 - **Power density:** 211.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 10 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 80.0 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.72 % - **Output after 30 years:** 452 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 9216 of 14005 | | Power density | 9158 of 14005 | | Temperature coefficient | 12345 of 14005 | | Weight | 6152 of 14005 | | Warranty | 9798 of 14005 | ## About this series Modules from the Tata Power Solar TPxxxLG10TB series are advanced units based on **glass-glass bifacial technology**, which redefine performance standards in demanding environmental conditions. This design effectively eliminates the risks associated with traditional backsheet foil, ensuring extraordinary resistance to potential-induced degradation and the phenomenon of micro-cracks. The use of M10 format monocrystalline cells combined with **modern half-cut architecture** allows for a significant reduction in power losses resulting from shading and lowers the module's operating temperature. This solution is dedicated primarily to investors implementing large-scale farms and ground-mounted installations, where the absorption of light reflected from the ground realistically increases the total energy yield. This series stands out with **above-average mechanical resistance** to extreme wind and snow loads, which guarantees operational safety in the variable Polish climate. The competitive advantage lies in rigorous production process control, translating into a lower decline in efficiency over time. Investing in these panels is a **guarantee of long-term yield stability**, which is crucial for a fast return on capital in professional PV projects. ## Notable figures - At 21.2% efficiency, this panel is on par with typical \*\*PERC 550-600W\*\* modules - Power density of 211.8 W/m² matches the \*\*PERC 550-600W\*\* median - At -0.36%/°C, hot weather performance is typical for \*\*PERC 550-600W\*\* panels - Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof - #9216 for efficiency, #12345 for temperature performance out of 14005 panels ## Questions ### How does the glass-glass bifacial technology in the TPxxxLG10TB panels differ from standard backsheet modules? In the TPxxxLG10TB series, the rear backsheet is replaced with tempered glass, eliminating potential-induced degradation (PID) and reducing the risk of laminate microcracks. The rear side is also photovoltaically active, capturing light reflected from the ground surface and boosting energy yield by up to several percent depending on ground albedo. The glass-glass structure is also more mechanically durable and better resists moisture and temperature swings. ### What warranty do Tata Power Solar TPxxxLG10TB panels come with? The manufacturer provides a 10-year product warranty covering material and workmanship defects, plus a 25-year power output warranty guaranteeing a minimum performance level over that period. As a Tier 1 manufacturer, Tata Power Solar has a stable financial track record, which increases the practical likelihood that warranty claims can be honored over the full term, unlike smaller, less established brands. ### Are the up-to-600 Wp TPxxxLG10TB panels suitable for large-scale solar farms and ground-mount installations? Yes, that's the primary use case for this series. The high per-module power (up to 600 Wp) combined with bifacial technology means ground-mount installations over light-colored ground or on tracker structures achieve noticeably higher energy yield than with monofacial panels. The large module size and weight suit fixed-tilt and tracking structures in utility-scale projects where cost per Wp is the key metric. ### How do TPxxxLG10TB panels perform in low temperatures and winter conditions in Poland? The monocrystalline PERC half-cut cells have a favorable power temperature coefficient, so the panel loses less efficiency at high temperatures and actually performs slightly better in cold winter conditions. On top of that, snow around the array raises ground albedo, giving bifacial modules an extra energy boost from the rear side once the front surface is cleared or partially lit. ### Are TPxxxLG10TB modules a good fit for a sloped residential roof? These panels are optimized mainly for solar farms and ground-mount installations rather than typical sloped roofs. The high power output and large dimensions add weight, requiring a structural check of roof load capacity, and the bifacial benefit is limited on a conventional pitched roof with little gap beneath the module. Homeowners typically get better value from smaller, lighter monofacial modules from the same or another product line. ### Is Tata Power Solar a reliable manufacturer, and can PERC cells in the TPxxxLG10TB series be trusted? Tata Power Solar is an India-based manufacturer classified as Tier 1, meaning full vertical integration and a long, financially stable market presence. PERC cells used in the TPxxxLG10TB series are a mature, proven technology with a solid price-to-efficiency ratio, though newer TOPCon technology now offers higher peak efficiency. For utility-scale projects, strict production quality control translates into lower power degradation over time. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/tp600lg10tb-glass-transparent-backsheet-a4c901210eba.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +3.6 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +50 W, cooler, +3.6 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +3.4 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | Cooler, +3.4 pp, +5 yr warranty | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | Cooler, +3.2 pp, +5 yr warranty | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, lighter, +3.2 pp | | [Tata Power Solar TP570LG10B](https://comparepv.com/panel/tata-power-solar-tp570lg10b) | 570 W | Heavier, -0.7 pp, +5 yr warranty | | [Tata Power Solar TP575LG10B](https://comparepv.com/panel/tata-power-solar-tp575lg10b) | 575 W | Heavier, -0.5 pp, +5 yr warranty | | [Tata Power Solar TP580LG10B](https://comparepv.com/panel/tata-power-solar-tp580lg10b) | 580 W | Heavier, -0.4 pp, +5 yr warranty | | [Tata Power Solar TP585LG10B](https://comparepv.com/panel/tata-power-solar-tp585lg10b) | 585 W | Hotter, heavier, +5 yr warranty | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +90 W, cooler, +4.0 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +85 W, cooler, +3.8 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +110 W, cooler, +3.8 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +105 W, cooler, +3.7 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +80 W, cooler, +3.6 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +80 W, cooler, +3.6 pp | --- Source: https://comparepv.com/panel/tata-power-solar-tp590lg10tb 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.