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325 Watt Walkable Semi Rigid Shade Tolerant Solar Panel with Polycarbonate & J-Mount Brackets - Sunpower A+ Grade 24.4% Efficient Cells

This 325 Watt Walkable Semi-Rigid Solar Panel supplied with polycarbonate backing and J-brackets. It features SunPower A+ grade 24.4% efficient solar cells, designed for outstanding performance in both full and partial sunlight. It’s the perfect choice for marine and van roof installations, delivering strong, stable power in challenging environments.

Built with a walkable surface, this panel offers exceptional durability. Its semi-rigid design allows it to be safely walked on when properly supported. Thanks to its excellent heat dissipation, it performs efficiently even in hot climates. The marine-grade construction ensures resistance to corrosion, saltwater, and harsh outdoor conditions, making it ideal for long-term use.

Ideal for mounting on boats, yachts, and camper vans, this panel provides dependable off-grid power for your fridges, lights, electronics, navigation gear, laptops, and more.

✅ The semi-rigid (walk-on) solar panel kit includes:

• PV solar panel module
• Sheet of twin wall polycarbonate backing
• Two J channel mounting extrusions
• Owner’s Manual

📦 Ships in 1-2 business days with UPS Ground from Denver or Michigan.

⚙️ Key Features

• Premium SunPower A+ Grade Cells: 24.4% efficiency for top-tier performance in all light conditions.

• Walkable & Semi-Rigid Design: Durable enough for boat deck and van roof mounting; perfect for marine and van use.

• Thinner, Lighter, Cooler: New 4mm design dissipates heat better than 7mm panels for optimal output in hot climates.

• Shade Tolerant: Generates power efficiently even when partially shaded.

• Marine-Grade Build: Designed to withstand saltwater and harsh environments.

• Lightweight & Low-Profile – Easy to install on boats, camper vans, and off-grid setups without adding bulk.

• Quiet, Clean Energy – No moving parts, zero emissions — just efficient off-grid power.

• 5-Year Warranty – Backed by Custom Marine Products’ quality guarantee

📏 Specifications

ℹ️ Module Loading Considerations

• Semi-rigid and flexible panels can be walked on with anti-slip or flat soft sole shoes.
• Semi-rigid panels and flexible panels can support a concentrated weight (minimum area of 2” x 2”) of up to 180 pounds, with a rigid backing supporting the panel. Avoid sharp objects, chair legs, or high heels on panels — these can crack solar cells. Semi-rigid or flexible panels can support a distributed weight in excess of 180 pounds if the panel has a strong rigid backing.
• Placing heavy objects (such as installation tools) on the surface of the panel during or after installation of the panel is acceptable. Remove all obstructions once panels are installed.
• Do not walk on panels that are installed on uneven surfaces.
• Do not apply excessive loads on the corners of the panel.

🎥 Watch our videos

In this video, we’re unboxing our 100 Watt Walkable Solar Panel. The same kits apply to the 325 Watt version too. See everything that’s included in the kit — from the durable polycarbonate backing to the J-channel mounting brackets — for a complete, ready-to-install solar setup.

Learn how to mount CMPower Walk-on marine solar panels safely and protect your boat’s gelcoat with our new mounting.