10/16/2026
Got a Powerwall? Check the grey line tonight.
Open the Tesla app and tap Energy. Blue is your home, yellow is solar, green is your Powerwall, and grey is the grid. When the grey line sits above the middle, that's power you're buying from the grid. When it dips below, your house is sending power out. Tap and hold the graph around dinner time and you'll see exactly what was powering the house.
It's like a fitness tracker for your house. It shows what your power did all day.
Just got a Powerwall 3? This is the first screen worth learning. Watching your own graph is the easiest way to see how batteries work at home.
Share it with the neighbor who has a Powerwall and never opens the app.
Source: Tesla Support, Energy Data page. Not affiliated with Tesla. More plain answers at gridpay.com