--- title: "S-Energy SE65-72BGJ-545S 545W Solar Panel - Specs & Review | ComparePV" description: "S-Energy SE65-72BGJ-545S 545W solar panel. Specs: 21.10% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/s-energy-se65-72bgj-545s" updated: 2026-09-11 --- # S-Energy SE65-72BGJ-545S Middle of its segment, short guarantee 7,747 panels in the 445-645 W band, all technologies ## Identity - **Manufacturer:** S-Energy - **Model:** SE65-72BGJ-545S - **Series:** SE65-72BGJ - **Rated power:** 545 W - **Cell technology:** Monocrystalline - **Bifacial:** yes ## How it compares Compared against 445-645 W band, all technologies (7747 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 545 W | 545 W | Typical | | | Module efficiency | 21.10% | 22.30% | Weak - bottom 20% | 9,297 | | Power density | 211.0 | 222.7 | Weak - bottom 20% | 9,312 | | Temperature coefficient | -0.350 | -0.300 | Weak - bottom 12% | 10,419 | | Weight (kg) | 28.5 kg | 28.0 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 11% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.10% | 22.30% | Weak - bottom 20% | 9,297 | | Power density | 211.0 | 222.7 | Weak - bottom 20% | 9,312 | | Temperature coefficient | -0.350 | -0.300 | Weak - bottom 12% | 10,419 | | Weight per kWp | 52.3 | 52.7 | Typical | 5,761 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 11% | 9,798 | ### Watch out for - **25 year performance warranty** - Bottom 11% of the 445-645 W band, against a median of 30 yrs. - **-0.350 %/°C temperature coefficient** - Bottom 12% of the 445-645 W band, against a median of -0.300. - **21.10% module efficiency** - Bottom 20% of the 445-645 W band, against a median of 22.30%. - **Best for:** Residential and commercial. - **Not ideal for:** Owners who want a long output guarantee, hot climates and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 545 W - **Efficiency:** 21.10 % - **Voltage at Pmax (Vmp):** 41.60 V - **Current at Pmax (Imp):** 13.11 A - **Open-circuit voltage (Voc):** 49.80 V - **Short-circuit current (Isc):** 13.88 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.270 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 144 - **Bifacial:** yes ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 28.5 kg - **Area:** 2.58 m2 - **Power density:** 211.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.54 % - **Output after 30 years:** 449 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 9297 of 14005 | | Power density | 9312 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 5761 of 14005 | | Warranty | 9798 of 14005 | ## About this series The S-Energy SE65-72BGJ series is a range of **bifacial** modules in a monocrystalline configuration, designed to maximize energy yield not only from the front, but also from reflections off the ground. In practice, this means better performance in ground-mounted systems, on sunny roofs, and anywhere where the albedo can be deliberately utilized - without the need to add additional panels. Compared to many standard solutions, these modules stand out due to their **glass-to-glass construction with anti-reflective coating**, which supports stable operation and resistance to varying weather conditions. The use of **large cells and a high cell density** helps to effectively utilize the module's surface area, which will be appreciated by investors with limited mounting space. Another important advantage is the **positive power tolerance**, which means that the installation starts operating closer to the expected power output. The **IP68 sealed junction box** also facilitates safe operation in environments exposed to moisture and dust. This makes it a good choice for PV farms, large commercial roofs, and prosumer installations aimed at maximizing energy generation. ## Notable figures - Efficiency of 21.1% is 0.7pp below the \*\*database\*\* median (21.8%) - At 211.0 W/m², this panel generates 7.1 W/m² less per unit area than \*\*database\*\* median (218.1 W/m²) - Temperature coefficient of -0.35%/°C is 0.05pp worse than \*\*database\*\* median (-0.30%/°C) - higher losses in summer heat - Weight of 28.5 kg is 2.0 kg above \*\*database\*\* median (26.5 kg) - verify structural support - 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces ## Questions ### Does bifacial technology in the S-Energy SE65-72BGJ series actually increase energy output? Yes. Bifacial modules generate electricity from both sides — the front and the rear, which captures light reflected from the ground surface (albedo effect). With light-colored ground cover such as concrete, gravel, or a white roofing membrane, or in ground-mount systems with sufficient clearance, yield can increase by 5–25% compared to conventional monofacial panels. The benefit grows with brighter surroundings and greater mounting height above the surface. ### What warranty does the S-Energy SE65-72BGJ series carry? The manufacturer provides a 12-year product warranty covering materials and workmanship, and a 25-year linear power warranty guaranteeing at least 80.7% of rated output after 25 years of operation. The positive power tolerance ensures every module leaves the factory producing at or above its nameplate wattage. ### What does the glass-glass construction in SE65-72BGJ modules mean, and why is it better than a standard backsheet? In a glass-glass design, the conventional plastic EVA backsheet is replaced with a thin tempered glass layer. This makes the module significantly more resistant to moisture ingress, cell microcracks, and PID (potential induced degradation), resulting in lower long-term power loss. The tradeoff is slightly higher module weight compared to backsheet panels, which must be accounted for in structural design. ### Is the SE65-72BGJ series suitable for residential rooftops, or is it designed only for utility-scale farms? While the series is optimized for ground-mount systems and large commercial rooftops — where the bifacial rear-side gain is maximized — it also performs well on light-colored, well-ventilated residential roofs. Up to 545 Wp per module allows building a high-capacity prosumer system in a smaller footprint. The IP68-rated junction box and glass-glass construction add durability in harsh weather conditions. ### Where is S-Energy headquartered, and is it a reliable PV manufacturer? S-Energy is a South Korean photovoltaic manufacturer based in Gyeonggi-do, operating since 2001 as a spin-off from Samsung's PV division. The company is listed on the Korean KOSDAQ exchange and runs its own factory with approximately 500 MW per year capacity. S-Energy is not currently ranked as a Bloomberg NEF Tier-1 manufacturer, which is worth considering when evaluating long-term warranty support. ### What is the peak power output of the S-Energy SE65-72BGJ, and does positive power tolerance matter in practice? Peak power in the SE65-72BGJ series is 545 Wp at STC. Positive power tolerance means no module ships below its nameplate rating. For a 20-panel system, this means the installation operates at full or above-rated capacity from day one. Over a 25-year power warranty period, that consistently higher baseline translates into meaningfully more energy produced compared to modules at the low end of tolerance. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/2-se65-72bgj-xxxs-230316-1-converted-292672686391.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.9 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.7 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | Cooler, +3.7 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.6 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | Cooler, +3.5 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.4 pp | | [S-Energy SL65-72BDJ-525Z](https://comparepv.com/panel/s-energy-sl65-72bdj-525z) | 525 W | Heavier, -0.8 pp, +5 yr warranty | | [S-Energy SL65-72BDJ-530R](https://comparepv.com/panel/s-energy-sl65-72bdj-530r) | 530 W | Heavier, -0.6 pp, +5 yr warranty | | [S-Energy SL65-72BDJ-530Z](https://comparepv.com/panel/s-energy-sl65-72bdj-530z) | 530 W | Heavier, -0.6 pp, +5 yr warranty | | [S-Energy SE65-72BGJ-535S](https://comparepv.com/panel/s-energy-se65-72bgj-535s) | 535 W | -10 W, -0.4 pp | | [S-Energy SL65-72BDJ-535R](https://comparepv.com/panel/s-energy-sl65-72bdj-535r) | 535 W | Heavier, -0.4 pp, +5 yr warranty | | [S-Energy SL65-72BDJ-540R](https://comparepv.com/panel/s-energy-sl65-72bdj-540r) | 540 W | Heavier, +5 yr warranty | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +105 W, cooler, +4.1 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +100 W, cooler, +3.9 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +95 W, cooler, +3.7 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +90 W, cooler, +3.5 pp | --- Source: https://comparepv.com/panel/s-energy-se65-72bgj-545s 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.