Can Home Assistant track my energy costs with SPAN data?

Yes. Home Assistant's energy dashboard supports time-of-use rates, fixed rates, and dynamic pricing. Combined with SPAN consumption data, it calculates actual energy costs per day, week, or month. A managed setup configures this with your specific utility rate structure.

Does SPAN data work with Home Assistant's energy dashboard?

Most SPAN energy sensors work with the energy dashboard after proper configuration. The sensors need to report cumulative energy (kWh), not just instantaneous power (W). Some integrations require template sensors to convert the data format.

Can I automate appliances based on solar production from SPAN?

Absolutely. Home Assistant can trigger automations when SPAN reports excess solar production — start the dishwasher, charge the EV, or heat water. This solar self-consumption optimization is one of the most impactful automations for clients with solar panels.

SPAN & Home Assistant

Energy & Monitoring

The SPAN Panel integration is a community project, installed through HACS, that connects Home Assistant to the SPAN Panel MAIN 32. It talks to the panel over the local network through SPAN’s own API, which SPAN publishes as a public beta, and the panel pushes every change as it happens instead of being polled.

Every circuit reports its power and energy, and the circuits the homeowner can switch get an on/off control and a backup priority. The whole home’s grid import and export feed the Home Assistant energy dashboard, and solar and battery power come through when they are installed. The integration also adds its own dashboard to the sidebar with a live view of every circuit.

Installed through HACS

SPAN support is a community integration installed via the Home Assistant Community Store (HACS), not a built-in core integration. It is actively maintained, but updates arrive through HACS rather than Home Assistant releases. It works only with the SPAN Panel MAIN 32 for now, because SPAN has not yet opened its API on its other panels.

Local control No cloud required

Visit SPAN Custom Integration

How SPAN Works with Home Assistant

Getting SPAN connected to Home Assistant and running reliably.

1

Connect your meters

Add SPAN through the integrations panel. Power meters, solar inverters, and battery systems appear as sensor entities with real-time readings.

2

Energy dashboard

Configure the Home Assistant energy dashboard to display SPAN data alongside other sources. See production, consumption, and grid exchange in one view.

3

Cost-optimized automation

Build automations that respond to SPAN energy data. Run appliances during peak solar production, charge batteries during off-peak rates, or alert when consumption spikes.

Common SPAN Issues

The problems installers run into with SPAN and Home Assistant — and how a managed setup prevents them.

Only the MAIN 32 connects

SPAN's API runs on the SPAN Panel MAIN 32 only. SPAN plans to bring it to the MAIN 16, MAIN 40, MLO 24, and MLO 48, but those panels cannot join Home Assistant yet.

Pairing needs the passphrase or the door

Pairing asks for the panel passphrase from the SPAN app, or for the panel door to be opened and closed three times. The panel also needs current firmware before the integration will connect.

Automations cannot switch circuits at first

A new install refuses circuit commands that come from an automation rather than a logged-in person. Turn on control without a logged-in user in the integration's options if a recipe has to switch circuits.

Why installers choose managed SPAN setups

Panel model and firmware checked before the visit
Circuit names matched to rooms and appliances in Home Assistant
Circuit control limited to the circuits a recipe actually needs
Backup priorities left to the panel, as SPAN recommends

Learn How We Manage SPAN

SPAN devices we deploy

Hardware from the Selora catalog that runs on this integration. Every unit is tested and supported as part of a managed installation.

View full SPAN catalog

Energy & Solar

1 device

SPAN Panel MAIN 32

SPAN

A smart electrical panel with 32 controllable circuits that replaces the home's main panel. It meters every circuit to revenue accuracy and can switch any of them from an app. Home Assistant connects to it over the local network through SPAN's own API and gets each circuit's power, energy, and on/off control in real time.