The global leader in fully automated solar panel cleaning.

Keep your panels clean all the time.

Maximize production. Minimize soiling.
five stars
"Our RST NightWash™ system has already paid for itself with increased production. It’s a no-brainer investment for our operation. Our solar is producing more than I have paid to RST for the system. The system really doesn’t use much water at all, which is an especially important consideration right now."
JJ Nunes
System Owner
five stars
"The RST system was more effective than we originally thought. We have had it operating for 4 months now – we were surprised how clean it has kept the panels with zero effort or hassle for us. It has required no maintenance and we can control the entire system from our phone. It has been great to see our panels looking clean and productive everyday."
Friesian Farms
automated solar cleaning

Solar Has A Dirty Secret

Your panels could be producing 30% more energy.

Panels get dirty over time, resulting in reduced energy production.

Solar is an excellent investment, that’s a fact. But the solar industry has a dirty little secret: Your solar panels could be producing up to 30% more energy.

The common narrative suggests that once solar is installed on your home or business, you don’t have to worry about upkeep for the next 25 years. Like most things that sound too good to be true, this isn’t.

See why you should clean
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No brushes. No robots. No labor.

Control everything from the palm of your hand.

Our solution is so simple and cost-effective that we honestly can’t believe there are system owners out there losing money by not using it.

So, how does it work?

We offer a fully automated solar panel cleaning system with no moving parts that you can control from your phone. RST NightWash™ keeps your panels clean all the time.

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Get more
from your solar

Regular cleaning can increase production by up to 30%.

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Protect your
panel warranty

Designed in full compliance with manufacturers’ requirements.

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User Friendly:
Set and Forget

No brushes. No robots. No labor. Just automated cleaning controlled from our mobile app.

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Global stamp
of approval

Now cleaning 2,000,000+ panels globally each night.

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Earth’s favorite panel
cleaning system

No chemicals, no cleaning agents – just completely green solar panel cleaning.

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Keep human error
off your property

Our fully automated system reduces labor hazards and damage to rooftops.

Doing nothing is costing you money.

Get a quote for your project

Who We Serve

Our simple technology makes it possible to fit our NightWash™ Systems to all types and sizes of solar projects. It can be installed during construction or retrofitted to an existing project.

Project Owners:

We maximize your solar assets.

Improve project financials by keeping your panels clean all the time while also protecting your panel warranty.


We make you look good.

Stand out from the crowd and optimize your installations by including the RST NightWash™ System in your offers. We also include training and support to set you up for success.


Add a product category that delivers.

Offer something new to your customers that directly improves their system performance.

Our automated solar panel cleaning technology covers all the bases.

Which RST NightWash™ system is right for you?

Request a quote.

Contact RST today.

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