Adding electricity to a shed can transform it from a simple storage space into a versatile and functional area. As a sheds supplier, I've seen firsthand how this upgrade can enhance the usability of our customers' sheds. In this blog, I'll guide you through the process of adding electricity to a shed, from planning to execution.
Planning Your Electrical System
Before you start any electrical work, it's crucial to plan your system carefully. This involves determining your power needs, choosing the right location for your electrical panel, and creating a wiring diagram.
Assessing Your Power Needs
The first step is to figure out what electrical devices you'll be using in your shed. This could include lights, power tools, heaters, or even a small refrigerator. Make a list of all the devices and their power requirements (usually measured in watts). You can find this information on the device's label or in the user manual.
Once you have your list, calculate the total wattage. This will help you determine the size of the electrical panel and the capacity of the circuit breaker you'll need. For example, if your total wattage is 1500 watts, you'll need a circuit breaker rated for at least 15 amps (since watts = volts x amps, and most household circuits are 120 volts).
Choosing the Right Location for Your Electrical Panel
The electrical panel should be installed in a dry, easily accessible location. It should also be close to the main power source, which is usually your home's electrical service panel. Avoid installing the panel in areas where it could be exposed to water or physical damage.
Creating a Wiring Diagram
A wiring diagram is a visual representation of your electrical system. It shows the location of the electrical panel, outlets, switches, and lights, as well as the path of the wiring. Creating a wiring diagram will help you plan the layout of your electrical system and ensure that everything is connected correctly.
Obtaining Permits and Hiring a Professional
Adding electricity to a shed is a complex and potentially dangerous task. In most areas, you'll need to obtain a permit from your local building department before you start the work. This is to ensure that your electrical system meets all the safety codes and regulations.
It's also highly recommended to hire a licensed electrician to install your electrical system. A professional electrician has the knowledge, skills, and experience to do the job safely and correctly. They can also help you obtain the necessary permits and ensure that your system passes the final inspection.

Installing the Electrical Panel
Once you have your permits and have hired an electrician, the next step is to install the electrical panel. The electrician will first disconnect the power from your home's electrical service panel to ensure safety. They'll then mount the electrical panel in the chosen location and connect it to the main power source using a conduit and appropriate wiring.
Running the Wiring
After the electrical panel is installed, the electrician will run the wiring from the panel to the outlets, switches, and lights in your shed. This involves digging a trench (if the shed is located some distance from your home) and burying the wiring in a conduit to protect it from damage.
The wiring should be sized appropriately for the load it will carry. For example, a 15-amp circuit should use 14-gauge wire, while a 20-amp circuit should use 12-gauge wire. The electrician will also install junction boxes at any points where the wiring branches or changes direction.
Installing Outlets, Switches, and Lights
Once the wiring is in place, the electrician will install the outlets, switches, and lights. They'll connect the wiring to the devices and ensure that everything is working correctly. It's important to choose high-quality electrical devices that are rated for outdoor use, especially if your shed is not climate-controlled.
Testing and Inspecting the Electrical System
After the installation is complete, the electrician will test the electrical system to ensure that everything is working properly. They'll check for any short circuits, ground faults, or other electrical problems. Once the system passes the tests, they'll call for a final inspection by the local building department.
Safety Tips
Adding electricity to a shed can be dangerous if not done correctly. Here are some safety tips to keep in mind:
- Turn off the power: Always turn off the power at the main electrical service panel before working on any electrical system.
- Use the right tools: Make sure you use the right tools for the job, such as insulated screwdrivers and wire strippers.
- Wear protective gear: Wear safety glasses, gloves, and other protective gear when working with electricity.
- Follow the codes and regulations: Make sure your electrical system meets all the local codes and regulations.
- Have a professional install the system: As mentioned earlier, it's highly recommended to hire a licensed electrician to install your electrical system.
Conclusion
Adding electricity to a shed can greatly enhance its functionality and value. By following the steps outlined in this blog, you can ensure that your electrical system is installed safely and correctly. If you're in the market for a shed, be sure to check out our Big Sheds Easy Sheds for a wide range of high-quality sheds to choose from.
If you have any questions or would like to discuss your shed and electrical needs further, please don't hesitate to reach out. We're here to help you create the perfect shed for your needs.
References
- National Electrical Code (NEC)
- Local building codes and regulations
- Electrical wiring manuals and guides

