How to Power a Shed With Solar: Lights, Power Stations and Kits

You can power a shed with solar three ways. A solar shed light with its own panel covers lighting with no wiring. A portable power station with a folding panel runs chargers and small tools. A fixed kit of panels, a charge controller, a deep-cycle battery and an inverter powers outlets, and that wiring should follow local code.

Option 1: a solar shed light for lighting only

A solar shed light is the simplest way to light a shed with solar. The panel mounts outside on the roof or wall, and a cord runs through to a light inside. Nothing connects to the house.

A basic model pairs a small panel on a cord with an LED light and a built-in rechargeable battery. Check the cord length against the distance from a sunny spot to the light, and compare brightness in lumens between models.

Renogy’s shed guide suggests testing first: light the shed with a work lamp on an extension cord to see whether one bulb is enough before you buy anything.

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Option 2: a portable power station with a folding panel

A portable power station gives a shed outlets with no installation. Carry it out for a project, plug in a charger, a fan or a small tool, and recharge it from a folding panel set in the sun or from a wall outlet in the house.

This route suits a shed used a few hours a week. It also moves indoors in a power outage. Check the station’s rated output against the tools you plan to run, including their startup surge. Our guide to what a 1000Wh power station can run has runtimes for common loads, and how to charge a solar generator covers panel limits.

Option 3: a fixed solar kit for a shed

A fixed kit turns the shed into a small off-grid system. The U.S. Department of Energy’s Small Wind Guidebook describes the parts behind any stand-alone renewable system, wind or solar, that is not connected to the grid:

Size the system from your loads. List what you will run and for how long to get daily watt-hours, and leave some room for cloudy days. Renogy’s rule of thumb is that a 100 W, 12 V panel makes about 30 amp-hours on an average sunny day, roughly 360 Wh. So a shed using about 600 Wh a day needs roughly two 100 W panels in good sun, and more for winter.

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• 100W starter kitsBrowse →
• 400W kitsBrowse →
• Kits with battery and inverterBrowse →
• Home backup kitsBrowse →

Wiring a shed solar system safely

Wiring a fixed system safely means following the electrical code. Solar systems fall under NEC Article 690 of the National Electrical Code, and the Department of Energy’s solar specifications point to the version of the code your local jurisdiction has adopted. Fuse and wire sizes for the battery and controller come from the controller’s manual and that code.

Call your local building department before you start, and ask whether a permit is needed. Have a licensed electrician install or check anything with outlets, a breaker panel or a connection to the house wiring. Never connect a shed system to the home’s wiring yourself.

Renogy’s setup guide also gives the order for a kit: connect the battery to the charge controller first, then the panels, and check polarity, since a reversed panel connection can damage the panels or the controller.

Which shed solar option fits

• You only need to see inside after dark: a solar shed light.
• You charge batteries and run small tools now and then: a power station and a folding panel.
• The shed is a workshop or office used most days: a fixed kit, installed to code.

For lights that cover the path to the shed, see the outdoor solar section. To size a power station for the shed, follow what size solar generator you need. More panel guides are in the solar panels section. For the fixed-kit route, solar panel kits explains what comes in the box and solar charge controllers covers sizing. Older panels can keep the cost down, as buying used solar panels explains.