--- title: "S-Energy SL65-54TDP-425R 425W Solar Panel - Specs & Review | ComparePV" description: "S-Energy SL65-54TDP-425R 425W solar panel. Specs: 21.78% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/s-energy-sl65-54tdp-425r" updated: 2026-09-11 --- # S-Energy SL65-54TDP-425R Solid all-round for its segment 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** S-Energy - **Model:** SL65-54TDP-425R - **Series:** SL65-54TDP - **Rated power:** 425 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 425 W | 435 W | Typical | | | Module efficiency | 21.78% | 22.00% | Typical | 7,206 | | Power density | 217.8 | 220.2 | Typical | 7,044 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight (kg) | 23.5 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.78% | 22.00% | Typical | 7,206 | | Power density | 217.8 | 220.2 | Typical | 7,044 | | Temperature coefficient | -0.300 | -0.290 | Typical | 6,093 | | Weight per kWp | 55.3 | 51.4 | Typical | 9,746 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ## Specification ### Electrical - **Rated power (Pmax):** 425 W - **Efficiency:** 21.78 % - **Voltage at Pmax (Vmp):** 32.15 V - **Current at Pmax (Imp):** 13.22 A - **Open-circuit voltage (Voc):** 38.21 V - **Short-circuit current (Isc):** 14.30 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 54 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1722 mm - **Width:** 1133 mm - **Thickness:** 30 mm - **Weight:** 23.5 kg - **Area:** 1.95 m2 - **Power density:** 217.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 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:** 371 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7206 of 14005 | | Power density | 7044 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 9746 of 14005 | | Warranty | 21 of 14005 | ## About this series S-Energy SL65-54TDP photovoltaic panels are an advanced solution based on **N-type TopCon cell technology**, which provides significantly higher efficiency compared to standard P-type modules. The **bifacial dual glass** design allows for effective use of reflected light, which translates into a real increase in energy yields even in difficult lighting conditions or under heavy cloud cover. Thanks to the use of double glass, this series exhibits exceptional resistance to PID degradation and negative atmospheric factors, guaranteeing stable operation for decades. It is an ideal choice for investors looking for components with an increased standard of fire safety, as the glass coating on both sides of the module minimizes the risk of ignition. These models are perfect for both demanding prosumer installations and commercial projects, where **maximum power density** and a low temperature coefficient are key. S-Energy SL65-54TDP stands out from the competition with rigorous Korean quality control, which effectively eliminates problems with micro-cracks and ensures **long-term stability of electrical parameters**. By choosing this series, you invest in durability that directly accelerates the return on investment by minimizing energy losses resulting from the natural aging of cells. ## Notable figures - At 21.8% efficiency, this panel is on par with typical \*\*TOPCon 400-450W\*\* modules - Power density of 217.8 W/m² matches the \*\*TOPCon 400-450W\*\* median - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels - At 23.5 kg, this panel is 1.5 kg heavier than the \*\*TOPCon 400-450W\*\* median (22.0 kg) - more demanding for installation crews - 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces ## Questions ### What warranty comes with the S-Energy SL65-54TDP panels? The SL65-54TDP series carries a 12-year product warranty and a 30-year linear power output warranty. Over those three decades, S-Energy guarantees the panels will retain specified minimum power levels — one of the longer commitments in this product class. The dual-glass construction and N-type TOPCon cell technology actively support meeting those performance targets throughout the entire service life. ### How does the TOPCon technology in the SL65-54TDP differ from standard PERC panels? N-type TOPCon cells in the SL65-54TDP feature a tunnel-oxide passivated contact layer that reduces charge carrier recombination. In practical terms this means higher efficiency, a lower temperature coefficient (less power loss on hot days), and slower long-term degradation compared to typical P-type PERC modules. For the system owner this translates to more kilowatt-hours from the same roof area over the full system lifetime. ### Does the bifacial dual-glass design of the SL65-54TDP actually boost energy yield on a pitched roof? Bifacial gain is greatest with a high-albedo surface beneath the panels — white membranes, light gravel, or reflective metal roofing can add several percent of additional yield. On a dark tile roof the rear-side gain is smaller, but the dual-glass construction still serves as robust protection against moisture ingress, UV exposure, and micro-cracking, reducing LID degradation regardless of the roof color. ### Are S-Energy SL65-54TDP panels safer than conventional modules in terms of fire risk? Yes. The dual-glass design — two layers of tempered glass replacing the conventional glass-and-backsheet structure — removes the flammable polymer backsheet entirely. In case of overheating or a wiring fault, the fire risk is significantly lower than with standard backsheet modules. This is particularly relevant for installations on timber-frame buildings or in facilities where insurers require elevated fire safety standards. ### Is the 430 Wp S-Energy SL65-54TDP suitable for a typical residential rooftop installation? Yes, 430 Wp sits firmly in the premium residential segment. Ten panels yield a roughly 4.3 kWp system, sufficient to cover the average single-family home's consumption. The 54-cell half-cut format keeps module dimensions manageable for standard roof sections, and the high per-panel wattage reduces the total number of modules needed to reach the target system size, simplifying BoS design. ### Where is S-Energy headquartered, and does Korean quality control actually affect the durability of the SL65-54TDP? S-Energy is headquartered in South Korea and has been manufacturing PV modules for over two decades. Korean production oversight means rigorous EL testing for micro-cracks and tight electrical parameter matching on the assembly line. The result is a narrow power bin classification and a lower probability of hidden structural defects driving early-stage degradation — factors that directly support stable LCOE over the system's lifetime. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/datasheet-sl65-54tdp-xxxr-410-430r-231120-2023-en-ver-1-0-52a2bbf4117d.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +50 W, +2.2 pp, +10 yr warranty | | [Just Solar JST-EDMH-(445-465)W-TD (465W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-465w-class) | 465 W | +40 W, lighter, +2.0 pp | | [JA Solar JAT54S40-475/LR](https://comparepv.com/panel/ja-solar-jat54s40-475-lr) | 475 W | +50 W, lighter, +2.0 pp | | [Tongwei TWMNH-48HW475](https://comparepv.com/panel/tongwei-solar-twmnh-48hw475) | 475 W | +50 W, cooler, +2.0 pp | | [Astronergy CHSM48RN(DG)/F-BH-475](https://comparepv.com/panel/astronergy-chint-new-energy-technology-co-ltd-chsm48rn-dg-f-bh-475) | 475 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A475-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a475-mce54mw) | 475 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A475-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a475-mah54mw) | 475 W | +50 W, cooler, +2.0 pp | | [S-Energy SL65-54TDP-410R](https://comparepv.com/panel/s-energy-sl65-54tdp-410r) | 410 W | -15 W, -0.8 pp | | [S-Energy SL65-54TDP-415R](https://comparepv.com/panel/s-energy-sl65-54tdp-415r) | 415 W | -10 W, -0.5 pp | | [S-Energy SL65-54TDP-420R](https://comparepv.com/panel/s-energy-sl65-54tdp-420r) | 420 W | -0.3 pp | | [S-Energy SL65-54TDP-430R](https://comparepv.com/panel/s-energy-sl65-54tdp-430r) | 430 W | +0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +85 W, cooler, +3.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +70 W, cooler, +3.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +80 W, cooler, +2.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +75 W, cooler, +2.7 pp | --- Source: https://comparepv.com/panel/s-energy-sl65-54tdp-425r 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.