Outage view & backup time

When the grid goes down, SolDial’s Power Flow changes to make it obvious — and tells you roughly how long your Powerwall can carry the house.

The grid-down indicator

When SolDial sees your system go off-grid, Power Flow marks the grid connection with a red × and shows the grid at 0 kW, so it’s clear at a glance that you’re running on your own power.

Hours of backup remaining

During an outage, the Powerwall shows a live estimate of how many hours of backup you have left at your current home usage — for example “~9h 30m backup left.” It’s based on your current battery charge and the rate your home is using power right now, and it updates as both change, so it reflects what you can actually expect rather than a fixed number.

What it’s based on

The estimate is your remaining usable battery energy divided by your current household draw. Because it tracks live usage, turning off big loads will extend it and turning them on will shorten it — a useful, honest gauge for deciding what to run during an outage.