Industry application
Marine Boat and Yacht Solar
Salt-resistant mounting for decks and coachroofs that cannot be perforated.
Pain points
What Goes Wrong in This Sector
- Plated steel fasteners seize and fail within a season in salt air
- A deck penetration on a boat is a far worse problem than one on a vehicle
- Cable entry boxes that get walked on crack and start letting water past
- Panels laid on a deck without airflow cook themselves and lose output
Requirements
What Buyers Actually Need
- 316 stainless fixings, not plated steel
- Bonded mounting hardware that never penetrates the deck or coachroof
- Cable glands rated for permanent exposure
- A mount profile that lifts the module clear for ventilation
Our approach
How We Specify for This Work
316 stainless as standard
Our aluminium L-feet brackets are supplied with 316 stainless screws — the marine grade, not the general-purpose one.
Bonded ABS for coachroofs
The corner and side mount range fixes a panel to a roof, boat, yacht or caravan by bonding, with nothing passing through the structure.
Keep entry boxes off the walkway
Our double-hole cable entry boxes should not be walked on, so they are not recommended for boat decks or narrowboat roofs — site them clear of traffic.
Ventilate underneath
The mount holds the correct air gap between the panel and the deck so the module can shed heat.
Recommended products
What We Supply for Marine & Yacht
BS09009-BSolar Panel Corner Mount 150 mm Black
A four-piece ABS corner set that bonds any 150 mm-lateral aluminium-framed panel to a roof or deck without drilling.
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BS09009-WSolar Panel Corner Mount 150 mm White
The white version of the BS09009 corner set — the usual choice on white caravan and motorhome roofs.
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BS090017-BSolar Panel Side Mount 180 mm Black
A two-piece 180 mm ABS spoiler set that carries the side of a framed panel and can be painted to match any roof.
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BS090017-WSolar Panel Side Mount 180 mm White
The white 180 mm spoiler pair — the side bracket that goes into the white caravan mounting kits.
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BS090018-BSolar Panel Long Side Mount 530 mm Black
A 530 mm ABS spoiler pair that carries the long edges of a framed panel and doubles as a wind deflector.
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BS090018-WSolar Panel Long Side Mount 530 mm White
The white 530 mm spoiler pair — 2.1 kg for the set and the long-edge bracket used in the BS090018 kit.
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BS090028-BSolar Cable Entry Single Hole Black
A bonded waterproof gland housing that takes one 6–12 mm solar cable through a roof or deck without a leak path.
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BS090028-WSolar Cable Entry Single Hole White
The white single-gland roof feed-through — recyclable ABS, UV resistant, and half the weight of a metal equivalent.
View details →Application notes
Worked Examples

Two Panels on a Caravan Roof Without Drilling
A caravan owner planned to DIY-install two 80 watt polycrystalline panels on the roof of a 21 ft 6 in van. The question raised on…

Waterproof Roof Cable Entry on a Camper
When the cable assembly of solar panels on the roof of a camper is run, the practical route is to bring the cable through the…

RV Roof Mounting for Highway Wind Loads
Mounting solar panels to an RV roof is not a static engineering problem. The vehicle moves, and the array has to survive the…
Knowledge
Guides for This Sector

How a Photovoltaic Cell Turns Sunlight into Electricity
The physics behind every module on this site, in the terms our own FAQ uses.

The Three Parts of a Motorhome Solar Battery Charging System
Panel, regulator, battery — what each one does and why you cannot skip the middle one.

Sizing a Solar Panel for an RV
Count the loads first, then pick the module — not the other way round.
Questions
Frequently Asked Questions
What fastener grade do you supply for marine use?
316 stainless steel screws with the aluminium bracket packs, and stainless hardware with the Z mount sets.
Can I mount panels on a deck without drilling?
Yes — the ABS corner and side mounts are designed for exactly that, bonded to the roof, boat, yacht or caravan surface.
Can I walk on the cable entry box?
No. We specifically do not recommend these boxes for boat decks or narrowboat roofs because they should not be walked on.
Which modules suit a boat?
The 20 W to 45 W modules in the range are the usual choice for marine power supply on a yacht or boat, all rated −40 °C to +85 °C.
Specifying for Marine & Yacht?
Send us the vehicle or vessel, the panel you are fitting and the quantity. We will come back with part numbers, carton quantities and a price.