What is the best way to install a sub panel for a shed?

The best way to install a sub panel for a shed is to first determine the power needs of the shed, then choose an appropriate sub panel size. Next, run a dedicated electrical line from the main panel to the shed, making sure to bury the cable at the proper depth. Install the sub panel in a dry, accessible location inside the shed, and connect the wires according to the manufacturer's instructions. Finally, test the system to ensure it is working safely and efficiently.