Battery Automation With Solar Assistant and Home Assistant

Automate battery charging using Solar Assistant, PV forecasts, and overnight tariff rates to maximise winter savings.
Simplest setup: charge from grid overnight on Octopus Go at 7.5p/kWh, discharge during peak hours.
Advanced: use Forecast.Solar API + Solar Assistant rules to decide whether to charge from grid or wait for solar.
Works with Sunsynk and Deye inverters via MQTT control through Solar Assistant.