This former Tesla engineer is here to reduce your carbon footprint and make getting off the grid easier with the second generation of his app-enabled electrical panel.

Before you do anything, switch off the breaker on your main electrical panel. Target just the breakers that handle power for the light fixtures and switches you plan to service.

Q: Trying to save a few dollars, I thought I could replace a light switch by myself. I turned off the breaker for the room, and then I used the vacuum cleaner to make sure there was no power at ...