--- title: "S-Energy SL45-60BDI-375Z 375W Solar Panel - Specs & Review | ComparePV" description: "S-Energy SL45-60BDI-375Z 375W solar panel. Specs: 20.59% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/s-energy-sl45-60bdi-375z" updated: 2026-09-11 --- # S-Energy SL45-60BDI-375Z Space saver, no clear weak spot 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** S-Energy - **Model:** SL45-60BDI-375Z - **Series:** SL45-60BDI - **Rated power:** 375 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 350-400 W (579 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 375 W | 380 W | Typical | | | Module efficiency | 20.59% | 19.90% | Strong - top 8% | 11,174 | | Power density | 205.9 | 199.0 | Strong - top 8% | 11,124 | | Temperature coefficient | -0.360 | -0.350 | Typical | 12,345 | | Weight (kg) | 22.5 kg | 21.4 kg | Typical | | | Performance warranty | 30 yrs | 25 yrs | Strong - top 13% | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.59% | 19.90% | Strong - top 8% | 11,174 | | Power density | 205.9 | 199.0 | Strong - top 8% | 11,124 | | Temperature coefficient | -0.360 | -0.350 | Typical | 12,345 | | Weight per kWp | 60.0 | 55.8 | Typical | 12,326 | | Performance warranty | 30 yrs | 25 yrs | Strong - top 13% | 21 | ### Strengths - **205.9 watts per square metre** - Top 8% of the PERC 350-400 W segment, against a median of 199.0. Ranked 11,124th in the whole database. - **20.59% module efficiency** - Top 8% of the PERC 350-400 W segment, against a median of 19.90%. Ranked 11,174th in the whole database. - **30 year performance warranty** - Top 13% of the PERC 350-400 W segment, against a median of 25 yrs. - **Best for:** Commercial. ## Specification ### Electrical - **Rated power (Pmax):** 375 W - **Efficiency:** 20.59 % - **Voltage at Pmax (Vmp):** 34.40 V - **Current at Pmax (Imp):** 10.91 A - **Open-circuit voltage (Voc):** 41.20 V - **Short-circuit current (Isc):** 11.43 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.290 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 60 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 1755 mm - **Width:** 1038 mm - **Thickness:** 30 mm - **Weight:** 22.5 kg - **Area:** 1.82 m2 - **Power density:** 205.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.45 % - **Output after 30 years:** 319 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11174 of 14005 | | Power density | 11124 of 14005 | | Temperature coefficient | 12345 of 14005 | | Weight | 12326 of 14005 | | Warranty | 21 of 14005 | ## About this series The SL45-60BDI series redefines performance standards thanks to the use of **bifacial technology**, which enables the generation of additional energy from radiation reflected from the ground. This solution is ideal for demanding investors seeking maximum yields from ground-mounted installations and large commercial projects. A key differentiator is the **double tempered glass-glass construction**, which completely replaces the traditional backsheet, radically increasing the modules' resistance to moisture, ammonia corrosion, and extreme mechanical loads. The use of this innovative design eliminates the risk of PID degradation, ensuring **long-term stability of power output** even after many years of operation in harsh environmental conditions. These panels effectively solve the problem of premature component aging in aggressive environments, while offering **exceptional sealing and structural durability** that clearly distinguishes them from standard monofacial products. By choosing the SL45-60BDI series, you gain confidence in stable system operation in locations with high albedo, where every additional watt of energy harvested from the rear surface of the module counts. This product is dedicated to professional photovoltaic farms and modern carport-type systems, where the highest materials engineering must go hand in hand with reliability. ## Notable figures - 20.6% module efficiency - 1.1pp better than the \*\*PERC 0-400W\*\* median of 19.4% - At 205.8 W/m² power density, this panel generates 11.4 W/m² more per unit area than \*\*PERC 0-400W\*\* median (194.4 W/m²) - Temperature coefficient of -0.36%/°C matches the \*\*PERC 0-400W\*\* median - At 22.5 kg (2.0 kg above \*\*PERC 0-400W\*\* median of 20.5 kg), requires checking roof load capacity - 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces ## Questions ### Is the S-Energy SL45-60BDI series still available for purchase? The SL45-60BDI series has been discontinued by S-Energy and is no longer actively manufactured. Limited new stock may still be available through distributors. Before purchasing, verify that panels are brand new, come with full technical documentation, and confirm the supplier can honor the 12-year product warranty. ### What warranties does the S-Energy SL45-60BDI come with? S-Energy provides a 12-year product warranty and a 30-year linear power output warranty for the SL45-60BDI series. After 30 years of operation, the module is guaranteed to retain at least 84.95% of its rated output power. These terms exceed the industry-standard 10/25-year coverage and reflect the durability of the glass-glass construction over conventional polymer backsheets. ### How much extra energy does the bifacial technology in the SL45-60BDI generate compared to a monofacial module? Bifacial technology allows the panel to produce electricity from both the front side and the rear side, which captures light reflected off the ground surface (albedo effect). In ground-mounted systems with reflective substrates such as gravel, sand, or concrete, the bifacial gain typically ranges from 5% to 20% above the rated 380 Wp. Actual yield depends on tilt angle, mounting height above ground, and surface reflectivity. ### Why do the SL45-60BDI panels use glass-glass construction instead of a traditional backsheet, and what difference does it make? The glass-glass design replaces the polymer backsheet with a second layer of tempered glass, eliminating the main degradation pathways: moisture ingress, ammonia corrosion, and PID (Potential Induced Degradation). In standard PERC modules with a polymer backsheet, PID can cause measurable power loss within a few years of operation in harsh environments. The SL45-60BDI maintains stable power output throughout its entire rated service life. ### What type of solar installation is the S-Energy SL45-60BDI best suited for? The SL45-60BDI is designed for ground-mounted utility-scale and commercial systems, solar farms, and carport structures where bifacial energy harvesting and high mechanical durability deliver the greatest advantage. Its ammonia resistance also makes it suitable near livestock facilities. Due to its larger footprint and weight of approximately 22.5 kg, it is not optimized for small residential rooftop installations. ### How does the 380 Wp rated power of the SL45-60BDI compare to current market offerings? At the time of its release, 380 Wp was a competitive output for commercial bifacial PERC modules. Today's market has shifted toward panels in the 420 to 440 Wp range and above, leveraging TOPCon or HJT cell technology for higher efficiency and power density. As a discontinued product, the SL45-60BDI is now a legacy option; new commercial projects prioritizing maximum power density should consider current-generation modules. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/bifacial-sl45-60bdi-365-380z-220308-2022-en-ver-1-0-e8e47e036d67.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +2.6 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +2.6 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -35 W, lighter, +2.4 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -15 W, lighter, +2.4 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +2.4 pp | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | +25 W, lighter, +2.4 pp | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | +25 W, lighter, +2.4 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +2.4 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, +2.0 pp, +10 yr warranty | | [Maxeon SPR-MAX3-425-R](https://comparepv.com/panel/maxeon-spr-max3-425-r) | 425 W | Cooler, +1.8 pp, +10 yr warranty | | [S-Energy SL45-60BDI-365Z](https://comparepv.com/panel/s-energy-sl45-60bdi-365z) | 365 W | -10 W, -0.6 pp | | [S-Energy SL45-60BDI-370Z](https://comparepv.com/panel/s-energy-sl45-60bdi-370z) | 370 W | -0.3 pp | | [S-Energy SL45-60BDI-380Z](https://comparepv.com/panel/s-energy-sl45-60bdi-380z) | 380 W | +0.3 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +135 W, cooler, +4.4 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +120 W, cooler, +4.2 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +130 W, cooler, +4.1 pp | --- Source: https://comparepv.com/panel/s-energy-sl45-60bdi-375z 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.