Sailing yacht with flexible solar panels mounted on the cabin roof, turquoise sea and sails up
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Marine & RV

The semi-flexible panel market is projected to pass USD 4.74B by 2034 because boats and RVs run on energy independence — the same off-grid movement that reached 148 million people in 2025 now powers vessels and motorhomes. These are 2–5 kg panels that follow a curved deck, shrug off salt spray and keep working after years of UV — a different module from a rooftop panel, built on the same line.

2–5 kgPanel weight
≥0.3 mBend radius
25 yrUV-stable ETFE
Pain Points Solved

Why framed glass fails on water

Pain pointWhy it happensHow ems-solar solves it
Standard panels cannot bendFramed glass modules sit flat; boat cabins and RV roofs are curvedFlexible ETFE panels with ≥0.3 m bend radius follow the deck without mounting frames
Weight destabilizes the boatA 22–27 kg framed module adds top-heavy massFlexible builds weigh 2–5 kg — up to 90% deadload reduction for the same area
Salt air corrodes everythingMarine environments attack frames, junction boxes and connectorsIEC 61701 salt-mist rating with corrosion-resistant J-box and connector options
Old flexibles died youngHeat build-up under dark surfaces degraded cells and adhesivesETFE frontsheet plus heat-dissipating backsheet keeps cells under 85 °C with 25-yr UV stability
Technical Parameters

EMS-FX series — semi-flexible marine & RV modules

ParameterValue
Module typeSemi-flexible, ETFE frontsheet
Power range100–300 W flexible · up to 450 W lightweight
Module efficiency18.0–22.0%
Weight2–5 kg (vs 22–27 kg framed)
Thickness1.5–3 mm
Bend radius≥0.3 m
Thermal designHeat-dissipating backsheet; cells < 85 °C
UV stabilityETFE frontsheet, 25-yr rated
Salt-mist ratingIEC 61701
ConnectorsMC4 / pre-wired options
Warranty15-yr product / 30-yr power
Custom sizes300×300 to 2000×1000 mm
Custom MOQ500 pcs (shape, grommets, color, cable exit)
CertificationsIEC 61215/61730, CE
Marine & RV FAQ

Questions from boatyards and OEM builders

How much curvature can a flexible panel handle?
The design bend radius is ≥0.3 m — enough for typical cabin tops, coach roofs and curved transoms. Flatter surfaces get full contact adhesion; tighter curves use a segmented layout, and our engineering team validates the radius against your deck drawing before production.
Will salt water kill it?
The build carries IEC 61701 salt-mist qualification, and the junction box and connectors are specified for marine exposure. Rinse-down maintenance still helps, but the panel itself is rated for the spray zone, not just the cabin.
Why did my old flexible panel fail?
Most early flexibles overheated: dark cells under a sealed frontsheet cooked themselves and the adhesive. Our ETFE frontsheet and heat-dissipating backsheet keep cells under 85 °C, and the frontsheet is UV-stable for 25 years — the two failure modes are engineered out.
Can you make custom shapes for our boat line?
Yes — custom sizes from 300×300 to 2000×1000 mm with grommets, cable exits and color options, at a 500-pc MOQ. Send a DXF or template and we return a panel layout with connectors positioned for your harness.
Aerial view of a bifacial solar farm at sunset
Marine / RV RFQ

Send the deck drawing — we'll lay out the panel.

Wattage, dimensions and quantity. Quote in 24 h, custom shapes from 500 pcs.

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