I’m a software engineer, and this is where I write up how I actually run my own home: cutting the energy bill with Octopus and Predbat, charging the car for as little as possible, and building the Home Assistant dashboards that tie it together. Real setups, real config, and the numbers behind them.
Cutting your energy bill
Getting a home battery and solar to charge at the cheapest times on Octopus tariffs, with Predbat doing the optimising.
- Setting up Predbat with Solar Assistant and Growatt SPH for Octopus Agile
- Switching from Octopus Agile to Intelligent Go with Predbat and Tesla
- Updating Predbat home battery charging for Octopus Intelligent Go
EV charging
Charging a Tesla on the cheap slots, automating the charger, and getting the car’s data into Home Assistant.
- Predbat EV charging with Tesla Fleet and Hypervolt on Octopus Agile
- Hypervolt auto lock and unlock automation with Home Assistant and Tesla
- Migrating from MyTeslaMate to a local TeslaMate install on Home Assistant
Home Assistant dashboards
Building a family dashboard: calendars, and a custom energy gauge done properly.
- Family dashboard part 1: iCloud calendars in Home Assistant
- Family dashboard part 2: a custom concentric energy gauge
- Family dashboard part 3: simplifying the energy gauge
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