Powerwall Controller

Web-based controller for Tesla Powerwall. Monitor power flow, view historical data, and automate backup reserve changes based on home power usage.

Features

• Real-time monitoring of solar, battery, grid, and home power
• Historical data storage (Parquet files, queryable via DuckDB)
• Automation rules to adjust backup reserve based on usage thresholds
• Audit log of all changes

Connection Modes

Supports 4 connection modes via pypowerwall:

• Local - Direct LAN access (Powerwall 2/+)
• FleetAPI - Official Tesla Fleet API
• Cloud - Tesla Owners API
• TEDAPI - Local WiFi access (Powerwall 3)

Setup

python -m venv venv
source venv/bin/activate
pip install -r requirements.txt
python run.py

Open http://localhost:9090 and configure your Powerwall connection.

Development

pip install -r requirements-dev.txt
pytest

Project Structure

app/
  api.py              # FastAPI routes
  config.py           # YAML configuration
  main.py             # Application entry point
  services/
    powerwall_service.py   # Powerwall communication
    monitoring_service.py  # Data collection
    storage_service.py     # Parquet/DuckDB storage
    automation_service.py  # Rules engine
  templates/          # Jinja2 HTML templates
  static/             # CSS/JS assets
tests/                # pytest tests
data/                 # Parquet files (created at runtime)
config.yaml           # Configuration file