240 Watt Shade Tolerant Flexible Solar Panel - Sunpower A+ Grade 24.4% Efficient Cells
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240 Watt Shade Tolerant Flexible Solar Panel - Sunpower A+ Grade 24.4% Efficient Cells
Our 240 Watt Semi-Flexible SunPower A+ grade 24.4+% efficient solar cell solar panel. Excellent for canvas mounting, bimini tops, van roofs and boat decks. Designed to minimize the effects of shading. 3 foot long #10 cable with MC4 connectors included.
📦 Ships Next Day UPS Ground from Denver or Michigan.
⚡ Key Features
- High-Efficiency SunPower Cells – Equipped with A+ Grade Maxeon cells 24.4% efficiency, among the highest available.
- Flexible & Lightweight Design – Easily mounts on curved or soft surfaces such as bimini tops, canvas, or decks.
- Easy Installation – Includes mounting grommets, MC4 connectors, and blocking diodes.
- Low Profile – Slim, aerodynamic design reduces drag and wind resistance on boats or vehicles.
- Quiet, Maintenance-Free Power – Generates clean energy for batteries, electronics, and lighting with no noise or fumes.
⚙️ Specifications
| 240 Watt Shade-Tolerant Flexible Marine Solar Panel | |
|---|---|
| 🔧 Model | CMP23240F-ST |
| ⚡ Rated Power | 240 Watts |
| 🔋 Peak Power Voltage (Vmpp) | 40.4 Volts |
| 🔋 Peak Power Amps (Impp) | 6.0 Amps |
| ⚡ Open Circuit Voltage (Voc) | 47.7 Volts |
| ⚡ Short Circuit Current (Isc) | 6.3 Amps |
| 🌞 Cell Conversion Efficiency | 24.4% |
| 📏 Dimensions | 31.5" x 58.3", 800 x 1480 x 3 mm |
| ⚖️ Weight | 14 lbs, 6.4 kg |
| 🧱 Substrate | Lightweight Fiberglass |
| 🔲 Background Color | White |
| 🧩 Cell Layout | 6 x 22 (22 are half cells) |
| 🛡️ Warranty | 5 years |
Our New 4 Quadrant Design
The diagram along side illustrates how these amazing panels work. Instead of the normal 2 quadrant design we use a new split cell design allowing the panel to have four quadrants of solar cells linked in series and isolated with inner panel blocking diodes. If one or two quadrants are shaded, the other quadrants perform at normal output. This can increase shaded panel output by 3 times that of a standard shaded panel.
SunPower Maxeon Shade Tolerant Series
Solar panel shading is a major issue on many boats. Shading can reduce a standard panel performance by over 60%. Custom Marine Products has developed a series of semi-flexible shade tolerant solar panels that have superior performance when partially shaded by boat equipment or nearby objects. These solar panels have high performance SunPower Maxeon cells. The diagram to the left illustrates how these amazing panels work.The junction box is mounted in the center or the edge of the panel enabling the panel to have four quadrants of solar cells linked in series and isolated with diodes. If one or two quadrants are shaded, the other quadrants perform at normal output. The result is a panel that will provide up to three times the output of a standard panel when shaded. These shade tolerant panels are ideal for bimini and dodger mounting where there is boom, mast and instrument pole shading. Patent pending
What Makes Our Panels Superior
- Our Semi Flexible Shade Tolerant Panels use only SunPower Maxeon A+ Cells.
- The SunPower cells we use in these panels are 24.4% efficient.
- We use an ETFE laminate coating that won't delaminate or go milky for 10 years.
- The ETFE laminate is applied with a prismatic finish to direct sun energy into the cells.
- Panels use internal blocking diodes to isolate the quadrants unaffected by shading.
- We build 6 grommets into the panels edges for easy installation with our mounting kits.
- All panels come with 3 foot pigtails and MC4 connectors.
- Our junction boxes are filled with Non Gassing Silicon RTV for maximum electrical waterproof insulation and corrosion resistance.
Solar System Design and Installation
We have put together a collection of helpful information for our customers on everything to help you design you perfect system and installation instructions.
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Shipping
Products ship the day after payment (domestic).
- Free shipping on orders over $1,500 (Lower 48 US states).
- $65 flat-rate shipping for orders between $500–$1,499 (Lower 48).
- International shipping takes longer. No tariff charges added — call for pricing.
Custom Designs & Custom Made Panels Available on Request
Our engineers will work with you to design a solar system specific to your needs including Lithium Batteries if you like. (Batteries are 10% off w/ solar system purchase).
If you'd like a custom solar panel, we can do it at $10/watt, more info here: Custom Solar Panels
Call Us: 248-712-1526
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