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Alto Solar’s marine-grade 100 Watt ultra-light semi-flexible solar panel is ideal for RVs, camper vans, boats and anywhere that weight and size are a concern. 


Solar Charge Your Battery

Connect it to a solar charge controller to charge your 12 volt battery bank, or string together multiple in series for higher voltages and more power! 

Select a solar charge controller using the pull down menu. See details below.



Constructed from A-Grade mono-crystalline solar cells and the latest ETFE textured lamination for a fully encapsulated, waterproof design. The PV100-FX is state-of-the-art, ultra-thin (4mm!), extremely efficient, and designed to withstand harsh environments.


Advantages of ETFE vs PET Solar Panels

Don't be fooled by the cheap prices of PET flexible solar panels. You get what you pay for! This is a premium product with advanced ETFE Lamination superior to PET solar panels. 


Flexible solar panels use a polymer material, ETFE or PET, to coat and protect the solar cells ("the lamination"). ETFE is widely accepted as being superior and more durable, whereas PET will peel, delaminate, and fail sooner.


☀ Superior Light Transmission = Greater Efficiency

☀ Waterproof & Highly Resistant to Sea Water and Acidic / Basic Solutions

☀ Withstands Greater Thermal and Mechanical Stress and Chemical Attack

☀ More Environmentally Friendly Production and Recycling

☀ Highly Flame Retardant & Suitable for Hot & Cold Climates

☀ Self-cleaning "Non-Stick" Surface


Solar Charge Controller Options:

• PWM solar charge controller (includes 5V 1.2A USB port) with 5m (16.5') solar cable + MC4 connectors, and 2m (6.5') battery cable with pre-crimped battery lugs and inline fuse.


• MPPT solar charge controller* with 5m (16.5') solar cable + MC4 connectors, and 2m (6.5') battery cable with pre-crimped battery lugs and inline fuse. Includes bluetooth monitoring app to view solar power production via your smart phone.


*MPPT solar charge controller is up to 30% more efficient than PWM = more power from your solar panel!


Alto Solar Generator Compatibility:

ASG500 - requires one or two 100W solar panels

ASG1000 & ASG1500 - requires two 100W solar panels, or one 200W folding solar panel (24V).



Output Power (Pmax): 100 Watt
Output Voltage (Vmp): 20.0 VDC 
Output Current (Imp): 5.0 A
Open Circuit Voltage (Voc): 23.6 VDC
Short Circuit Current (Isc): 5.3 A
Cell Efficiency: 22.4%
Lamination coating (both sides): ETFE (more efficient and durable than PET)
Waterproof Junction box: IP65 / IP67
Connectors: MC4
Dimensions: 1050 x 510 x 4 mm (41.5" x 20.1" x 0.16")
Weight: 2.9 kg (6.4 lbs)

100 Watt Flexible Solar Panel, Monocrystalline

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