Can an RV Solar Panel Get Wet?

woman holding an RV solar panel

Yes, an RV solar panel can get wet. RV solar panels are designed to operate in wet conditions. They are water resistant and can withstand exposure to rain, snow, and other environmental elements. Most RV panels are constructed using tempered glass, aluminum frames, and other durable materials. These materials protect the solar cells inside from moisture and water damage.


Are RV Solar Panels Waterproof?

Yes, RV solar panels are waterproof. They are designed to operate in all kinds of weather conditions. When you think of it, they’re mounted on the roof of a vehicle, so they’re going to experience all kinds of weather – dry, wet, snow, and even ice.

RV beneath a night sky

The best RV solar panels are designed to withstand harsh climates. Although they need sunlight to generate electrical power, most solar panels will experience rain and wet weather conditions throughout their life cycle. This means it’s vital they are designed to be water-resistant.

The Importance of Proper Installation

Installation is key when it comes to protection from the elements. Installation must be performed correctly to ensure water resistance. Improper work can lead to water ingress and water damage. Electrical connections and internal wiring are particularly vulnerable to water leakages.

man installing RV solar panels

If you’re installing a new RV solar power system, make sure the mounting brackets and cable entry points are properly sealed. And, you should perform regular visual inspections for leaks or cable damage to ensure moisture doesn’t become an issue.


What Happens if a Solar Panel Gets Wet?

If a solar panel gets wet don’t worry. As long as it has been installed correctly you shouldn’t experience any issues. It will continue to perform as normal. The water will just run off it and it won’t suffer any water damage. Occasional rain exposure is normal and the panels are designed to withstand this.

woman pointing downwards

However, if a solar panel is not installed correctly or has suffered some kind of physical damage there could be a problem. If water ingress occurs in the panel or its associated cabling you could experience electrical damage, reduced performance, and corrosion.

• Electrical Safety

The electrical wiring and connections within the solar system must be properly sealed and insulated to prevent water ingress. If water penetrates the electrical components it can lead to short circuits or electrical damage.

• Potential Corrosion

Prolonged exposure to water can result in the corrosion of metal components within the solar panel and its support system. Mounting frames and brackets are particularly vulnerable to water damage. This is a more significant concern in areas that experience significant rainfall and coastal locations where saltwater exposure is a factor.

• Reduced Performance

The presence of water droplets on the surface of an RV solar panel can reduce the efficiency of the panel by blocking out sunlight. This reduced performance is temporary and can be avoided by removing residual moisture and water droplets from the panel surface.


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Do RV Solar Panels Work In the Rain?

Yes, RV solar panels work in the rain. They are an ‘always-on’ technology. As long as they are receiving sunlight, they will generate electricity. However, they cannot generate power if there is no sunlight.

man washing RV solar panels with a power hose

And, if it’s raining, the chances are there is cloud cover and little direct sunshine. The absence of sunlight will prevent the panels from creating electricity – not the presence of rain. If you are experiencing rain, you can expect your solar panels to continue generating electricity as long as there is direct sunlight.


Should RV Solar Panels be Covered When Not in Use?

RV solar panels do not need to be covered when not in use. It’s a question we get asked a lot when covering Can an RV Solar Panel Get Wet?  Modern solar panels are designed to be weather and water-resistant. So, there’s little to be gained by covering them when not in use. However, if you want to keep them clean, then adding a cover may be a good idea.

young man pointing to the left, gesturing, and smiling

If solar panels are not going to be used for a considerable period or are being placed in storage, covering them offers an additional layer of protection against dust, dirt, bird droppings, or other debris that may accumulate on the panel surface. And, by keeping them clean you are protecting their efficiency and ensuring you maximize the panel’s natural life cycle.


Can Portable Solar Panels be Left in the Rain?

Yes, most portable solar panels can be left in the rain. The best portable solar panels are designed to be water resistant and will not suffer damage if they come into contact with rainwater. However, their efficiency will be reduced.

two people sitting on camp chairs outside an RV

Like all solar panels, portable solar panels need direct sunlight to function. And, if they don’t receive sunlight they cannot produce electricity. Rain usually occurs during periods of cloud cover. Therefore, you will experience reduced power production if the clouds above are blocking out the light.


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ABOUT THE AUTHOR

John McTominay

  • B.S. Electrical Engineering
  • Solar Power Expert

Meet John McTominay, a solar energy pro with an electrical engineering degree from Arizona State University. With over 30 years in solar, John loves blending tech smarts with nature.

Outside work, he’s all about RV adventures, hiking, and cheering for the Phoenix Suns in the NBA. John shares his solar wisdom on RV Solar Power Hub, helping others light up their RVs.

A travel buff, he’s on a constant quest for new horizons and scenic spots, making the solar journey as exciting as the destination. Explore the world with John, where green energy meets the great outdoors!


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2 thoughts on “Can an RV Solar Panel Get Wet?

  1. They don’t make as much electricity when they’re wet. That’s because of the rain and cloud cover.

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