--- title: "TommaTech TT585-144TN10 585W Solar Panel - Specs & Review | ComparePV" description: "TommaTech TT585-144TN10 585W solar panel. Specs: 22.65% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/tommatech-tt585-144tn10" updated: 2026-09-11 --- # TommaTech TT585-144TN10 Solid all-round for its segment 1,018 panels in the segment TOPCon 550-600 W ## Identity - **Manufacturer:** TommaTech - **Model:** TT585-144TN10 - **Series:** TOPCON Monocrystalline 144TN10 - **Rated power:** 585 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 550-600 W (1018 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 585 W | 580 W | Typical | | | Module efficiency | 22.65% | 22.44% | Typical | 3,522 | | Power density | 226.5 | 224.4 | Typical | 3,500 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 29.0 kg | 31.2 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.65% | 22.44% | Typical | 3,522 | | Power density | 226.5 | 224.4 | Typical | 3,500 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 49.6 | 53.8 | Typical | 3,134 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Commercial, utility-scale, shaded-installations and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 585 W - **Efficiency:** 22.65 % - **Voltage at Pmax (Vmp):** 43.15 V - **Current at Pmax (Imp):** 13.56 A - **Open-circuit voltage (Voc):** 51.78 V - **Short-circuit current (Isc):** 14.24 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.260 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 144 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 29.0 kg - **Area:** 2.58 m2 - **Power density:** 226.5 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:** 511 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3522 of 14005 | | Power density | 3500 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 3134 of 14005 | | Warranty | 21 of 14005 | ## About this series TommaTech panels from the TOPCON Monocrystalline 144TN10 series redefine performance standards through the use of advanced N-type cells, which practically eliminate light-induced degradation. The use of **innovative TOPCon technology** allows for higher quantum efficiency, translating into greater energy generation in low-light conditions as well as at dawn and dusk. The module design features 144 half-cut cells, significantly reducing internal resistance and improving system performance during partial shading. This series stands out for its **excellent temperature coefficient**, ensuring stable power production even during extreme summer heat, providing an advantage over classic P-type modules. It is a solution designed for professional business installations and PV farms, where the priority is **maximum power density** and long-term durability of components. Exceptional mechanical resistance and a **reduced PID degradation effect** ensure that investing in this series guarantees energy security for decades. By choosing these modules, investors receive a product that combines high performance standards with the latest achievements in materials engineering, outperforming the competition in terms of **stability of electrical parameters** throughout the entire installation life cycle. ## Notable figures - Efficiency of 22.6% matches the \*\*TOPCon 550-600W\*\* median - Power density of 226.5 W/m² matches the \*\*TOPCon 550-600W\*\* median - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 550-600W\*\* median - At 29.0 kg, this panel is 2.2 kg lighter than \*\*TOPCon 550-600W\*\* median (31.2 kg) - easier handling during installation - Ranked #3522 out of 14005 panels for efficiency in the database ## Questions ### How does TOPCon technology in the TommaTech 144TN10 series differ from standard PERC cells? TOPCon (N-type) cells used in the 144TN10 series feature an additional passivation layer on the rear side, which reduces electron recombination and increases quantum efficiency compared to standard P-type PERC cells. In practice, this means higher energy output in low-light conditions, at dawn and dusk, as well as significantly lower power degradation during the first years of operation. ### What warranty does the TommaTech TOPCON Monocrystalline 144TN10 panel come with? The manufacturer offers a 15-year product warranty covering material and workmanship defects, plus a 30-year power performance warranty guaranteeing a defined output level throughout that period. This warranty structure is standard for modern N-type panels and gives investors confidence in a stable return on investment over a long time horizon. ### Are TommaTech 144TN10 panels suitable for residential rooftops, or only for large-scale PV farms? Panels reaching up to 600 Wp work well both for prosumer installations on single-family home roofs and for commercial projects or utility-scale solar farms. A higher wattage per module means fewer panels are needed to reach a target system size, reducing mounting structure costs and installation time regardless of project scale. ### How well do TommaTech 144TN10 panels handle partial shading, such as from a chimney or antenna? The module is built with 144 half-cut cells, which lowers internal resistance and divides the panel into independent electrical sections. As a result, shading on part of the panel, such as from a chimney, leaves, or antenna, causes a smaller drop in the whole system's output than with conventional full-cell panels, where shading a single cell can shut down an entire string. ### Do TommaTech TOPCON panels maintain high efficiency during summer heat? Yes, the N-type cells used in the 144TN10 series have a better temperature coefficient than classic P-type cells, meaning less power loss as module temperature rises. In practice, on hot, sunny days the panel loses less efficiency than standard PERC modules, resulting in higher real-world summer energy yield when roof surface heating is at its peak. ### Is TommaTech a Tier 1 manufacturer, and where do 144TN10 panels come from? TommaTech is headquartered in Turkey and is not currently listed as Tier 1 under BloombergNEF's classification, a bankability criterion used mainly for financing large institutional projects. This does not indicate lower build quality, but rather a smaller production scale or shorter market track record compared to global giants, while the panels still carry full certifications and standard warranties. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/144tn10-600-570wp-topcon-n-type-solar-panels-3-a8033ed63586.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, lighter, +2.2 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, lighter, +2.0 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +45 W, cooler, +1.8 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | Cooler, lighter, +1.8 pp | | [TommaTech TT570-144TN10](https://comparepv.com/panel/tommatech-tt570-144tn10) | 570 W | -15 W, -0.6 pp | | [TommaTech TT575-144TN10](https://comparepv.com/panel/tommatech-tt575-144tn10) | 575 W | -10 W, -0.4 pp | | [TommaTech TT580-144TN10](https://comparepv.com/panel/tommatech-tt580-144tn10) | 580 W | Very close match | | [TommaTech TT590-144TN10](https://comparepv.com/panel/tommatech-tt590-144tn10) | 590 W | Very close match | | [TommaTech TT595-144TN10](https://comparepv.com/panel/tommatech-tt595-144tn10) | 595 W | +10 W, +0.4 pp | | [TommaTech TT600-144TN10](https://comparepv.com/panel/tommatech-tt600-144tn10) | 600 W | +15 W, +0.6 pp | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +65 W, cooler, +2.6 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +60 W, cooler, +2.4 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/tommatech-tt585-144tn10 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.