SunSums Home Assistant Kit

See what your solar, battery and tariff really save, in pounds, updated every five minutes.

Your inverter app shows kilowatts. Your supplier shows a bill weeks later. Neither tells you the thing you actually want to know: what did today cost, and what did the sun save me?

The SunSums Kit turns Home Assistant into a live money tracker for UK solar and battery homes. Install it in about 15 minutes, choose your sensors on a simple setup page, and it starts counting.

What you get:

• Today at a glance: net cost so far, what solar and export saved, how self-powered you were, and the price right now.
• The cheapest window still to come, so you know exactly when to charge the car or run the dishwasher.
• Daily and monthly history: solar made, electricity bought, exported, net cost and savings, all in one table.
• Real Octopus half-hourly prices through the Octopus Energy integration (Agile, Intelligent Octopus Go, Go, Flux), or your own day/night rates with any supplier.
• Phone notifications: an evening summary, an alert when power is cheap (or even negative), and a monthly report.
• Works with any brand that shows up in Home Assistant: Tesla Powerwall, GivEnergy, SolarEdge, Solis, Fox ESS, Enphase, Growatt and more.
• No extra add-ons needed: it uses Home Assistant's built-in cards only.
• Safe to add: everything is named sunsums_, so it never touches your existing setup, and it removes cleanly.

Included: the package, the dashboard, an 8-page step-by-step install guide, and email support if you get stuck.

🏠 Needs Home Assistant 2025.1 or newer

⚡ Instant download

Costs are calculated from your own sensors and rates. Always check against your supplier's bill.