Home energy management

Home Assistant turns your home into a clear, easy-to-read picture of how energy flows in and out of it. You can see how much electricity you draw from the grid and when, how much your solar panels produced today, how full your home battery is, and which appliances are quietly costing you the most. With that information, you can plan when to run the dishwasher, charge the car when power is cheap or your panels are at their peak, and set automations that quietly save you money in the background.

The energy dashboard works with electricity, gas, and water. For each one, your usage is grouped into three simple types: what you consume, what you produce, and what you store. You can start with a single source, even just your electricity meter, and add more as you go. Every source you add makes the picture more complete.

Home Assistant is open and works with hardware from many different brands, so you are not locked into one ecosystem. Any energy monitor, smart plug, solar inverter, or utility meter that integrates with Home Assistant can feed data into the energy dashboard.

If you have a sensor that returns instantaneous power readings (W or kW), then to add a sensor that returns energy usage or generation (kWh), refer to the Riemann sum integral integration.

You can also configure power sensors alongside energy sensors in the Energy dashboard. Power inputs accept sensors with state_class: measurement and appropriate units (for example W or kW).

Visual representation of how all different energy forms relate.