--- title: "Maxeon SPR-BE66-GD610 Solar Panel: Specs & Datasheet | ComparePV" description: "Maxeon SPR-BE66-GD610 solar panel. Specs: 24.60% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/maxeon-spr-be66-gd610" image: "https://comparepv.com/og/panel/maxeon-spr-be66-gd610.png" updated: 2026-11-05 --- # Maxeon SPR-BE66-GD610 Warranty pick, no clear weak spot 78 panels in the segment Back Contact 600-650 W ## Identity - **Manufacturer:** Maxeon - **Model:** SPR-BE66-GD610 - **Series:** Origin - **Rated power:** 610 W - **Cell technology:** Back Contact - **Bifacial:** yes ## How it compares Compared against segment Back Contact 600-650 W (78 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 610 W | 635 W | Weak - bottom 14% | | | Module efficiency | 24.60% | 23.75% | Strong - top 8% | 70 | | Power density | 245.6 | 237.5 | Strong - top 10% | 96 | | Temperature coefficient | -0.260 | -0.260 | Typical | 521 | | Weight (kg) | 30.1 kg | 32.3 kg | Typical | | | Performance warranty | 40 yrs | 30 yrs | Strong - top 3% | 1 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 24.60% | 23.75% | Strong - top 8% | 70 | | Power density | 245.6 | 237.5 | Strong - top 10% | 96 | | Temperature coefficient | -0.260 | -0.260 | Typical | 521 | | Weight per kWp | 49.3 | 50.4 | Typical | 2,896 | | Performance warranty | 40 yrs | 30 yrs | Strong - top 3% | 1 | ### Strengths - **40 year performance warranty** - Top 3% of the Back Contact 600-650 W segment, against a median of 30 yrs. Ranked 1st in the whole database. - **24.60% module efficiency** - Top 8% of the Back Contact 600-650 W segment, against a median of 23.75%. Ranked 70th in the whole database. - **245.6 watts per square metre** - Top 10% of the Back Contact 600-650 W segment, against a median of 237.5. Ranked 96th in the whole database. - **Best for:** Owners who value a long output guarantee, small roofs that need every watt and roofs where every square metre counts. ## Specification ### Electrical - **Rated power (Pmax):** 610 W - **Efficiency:** 24.60 % - **Voltage at Pmax (Vmp):** 41.56 V - **Current at Pmax (Imp):** 14.68 A - **Open-circuit voltage (Voc):** 49.83 V - **Short-circuit current (Isc):** 15.46 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.260 %/degC - **Temperature coefficient of Voc:** -0.220 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** Back Contact - **Bifacial:** yes - **Bifacial gain:** 10.00 ### Physical - **Length:** 2190 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 30.1 kg - **Area:** 2.48 m2 - **Power density:** 245.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 40 years - **Performance warranty:** 40 years - **First-year degradation:** 1.00 % - **Annual degradation:** 0.25 % - **Output after 30 years:** 560 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 70 of 14269 | | Power density | 96 of 14269 | | Temperature coefficient | 521 of 14269 | | Weight | 2896 of 14269 | | Warranty | 1 of 14269 | ## About this series The SunPower Origin series is a commercial solar panel line engineered to maximize return on investment for business and industrial installations. At its core is a **unique back-contact shingled cell technology**, where all electrical connections sit on the rear of the cell - this eliminates shading losses caused by front-side wiring and allows more active cell area to be packed into each panel. The panels feature **bifacial energy production**, so reflected light from the surrounding surface translates into a real boost in energy yield from the same roof or ground footprint. The series stands out for its **high resistance to micro-cracks, soiling, wind, hail, and extreme heat**, ensuring stable performance even in harsh climates and helping lower the levelized cost of energy (LCOE) over the system's lifetime. Commercial investors will also value the **market's lowest power degradation rate** and strong output under partial shading conditions. The entire line is backed by a **40-year warranty** covering product, power, and service, making Origin a solution built for businesses seeking predictable, long-term returns from their PV installations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/EN_SunPower_Origin_COM_Datasheet_SPR-BE66-GD_595615W-8b83bafc4aab.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +40 W, lighter, -10 yr warranty | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +35 W, lighter, -10 yr warranty | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | -50 W, lighter, -10 yr warranty | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +30 W, lighter, -10 yr warranty | | [Maxeon SPR-BE66-GD615](https://comparepv.com/panel/maxeon-spr-be66-gd615) | 615 W | Very close match | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +25 W, lighter, -10 yr warranty | | [Maxeon SPR-BE66-GD595](https://comparepv.com/panel/maxeon-spr-be66-gd595) | 595 W | -15 W, -0.6 pp | | [Maxeon SPR-BE66-GD600](https://comparepv.com/panel/maxeon-spr-be66-gd600) | 600 W | -10 W, -0.4 pp | | [Maxeon SPR-BE66-GD605](https://comparepv.com/panel/maxeon-spr-be66-gd605) | 605 W | -0.2 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | +20 W, heavier, -10 yr warranty | --- Source: https://comparepv.com/panel/maxeon-spr-be66-gd610 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.