Our record-setting Maxeon® technology powers records on air, land and sea – while ensuring that you have the very best solar for your home or business. SunPower Maxeon 3 400w Solar Panels in stock January 2020. Reduced Installation Cost The world’s highest efficiency Solar Panel is in stock in January. SunPower’s Maxeon 3 400w panel offers high generation for both residential & commercial roofs. 400W Solar Panel 1690 x 1046 x 40mm Max Power: 6.08 A @ 65.8 V 25 Year Product Warranty! SunPower 400 W, 22.6% efficient, compared to a Conventional Panel on same-sized arrays (280 W multi, 17% efficient, approx. Sunpower Maxeon 400W Solar Panels. SunPower Maxeon 3 series 390 - 400W solar panel range reviewed in detail: Design, Durability, Efficiency, Performance, Guarantee. 1.64 m²), 8% more energy per watt (based on PVSim runs for avg US climate), 0.5%/yr slower degradation rate (Jordan, et. Sunpower SPR-400-WHT-D (400W) Solar Panel. SunPower MAXEON 3 panels combine the top efficiency, durability and warranty available in the market today, resulting in more long-term energy and savings. Most electricity: Simply put, SunPower X-Series panels produce more electricity than conventional panels. SunPower delivers more energy3 SunPower Maxeon panels produce up to 55% more energy in the same space over 25 years over Conventional Panels. The SunPower 400W Solar Panel is designed to be different. CEC Approved Solar Module 22.6% EFFICIENCY. The future of solar is now. Generate a Solar Permit Package for a design using Sunpower SPR-400-WHT-D (400W) Sign up Learn More. A new era of solar panel energy has launched with the unveiling of the SunPower Maxeon┬« 3 Solar Panel now delivering 400w of power. The SunPower Performance Series is the most deployed shingled solar panel in the world,3 with proven results. SunPower: SPR-E20-435-COM: 435: 20.3: How many 400-watt solar panels do you need? SunPower Maxeon3 400W panel combines high efficiency with strong durability. Features / Description. With the world's first 400+ watt solar panels , the A-Series solar panels deliver the most power per square foot possible, so you can save more while using less space. 25 Year Power Warranty! - Solar Panels READ MORE > With SolarDesignTool, you can create a design from scratch and generate a full PV permit package in as little as 15 minutes. And, you can position them on the sunniest parts of your roof. * Which means you can create more power in smaller spaces, with fewer panels. Innovative shingled design eliminates many of the reliability challenges of traditional front contact panels. SunPower stands behind its panels with its industry-leading Complete Confidence Warranty. SCORE & REVIEW. Most energy from less space: SunPower X-Series solar panels deliver 44% more power per panel. Fundamentally different, and better. Conventional solar cells lose power over time because of corrosion and breakage. And proven to be better even in harsh conditions across more than 1 billion Maxeon cells. 4kWp can be achieved from just over 17.5sqm of roof area.. 104 cell module, 25 year warranty. SunPower Maxeon solar panels are designed to be different, and proven to be better across more than five cell generations, 3.5 billion cells and 30 million panels, even in the harshest of conditions. A single 400W solar panel is rated to produce 400 watts of power, but the actual power output you see from your panels depends on many factors, including geographic location, shading, and the tilt of your panels. The unique design of SunPower solar cells eliminates 85% of the reasons that conventional cells fail. Advantages. 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