TeslaMate

TeslaMate is an open-source application that records and analyses telemetry from Tesla vehicles. It captures high-precision drive, charge and location data, stores it in a PostgreSQL database and provides dashboards and integrations for further analysis and automation.

Key Features

• Elixir-based backend with a Phoenix web interface and BEAM runtime for concurrent, fault-tolerant data collection.
• Stores all vehicle telemetry in PostgreSQL for durable, queryable storage and long-term analysis.
• Pre-built Grafana dashboards and a custom Grafana image for visualizing drives, charges, battery health and efficiency.
• Publishes vehicle data to a local MQTT broker for easy integration with Home Assistant, Node-RED and other automation tools.
• Docker and Docker Compose deployment with additional installation options (NixOS, manual Debian/Ubuntu) and environment-variable configuration.
• Data import tools for migrating historical data from services like TeslaFi and community scrapers.
• Features to minimize car wake-ups (reducing vampire drain), geo-fencing/custom locations, multi-vehicle support and charging cost tracking.

Use Cases

• Personal vehicle analytics: track trips, charging sessions, battery health and energy efficiency over time.
• Home automation / integrations: feed live telemetry into Home Assistant or Node-RED via MQTT for automations and notifications.
• Fleet or multi-vehicle monitoring: aggregate and compare driving and charging metrics across multiple vehicles on the same account.

Limitations and Considerations

• Relies on Tesla's owner/fleet APIs: changes to Tesla's APIs or authentication may break data collection until the project adapts.
• Some vehicle or MCU configurations require special handling; certain hardware upgrades (e.g., MCU2) have recommended image tags to improve sleep behaviour.
• Upgrades and major PostgreSQL migrations have produced occasional migration issues for some users; careful backup and testing are recommended before major upgrades.

TeslaMate provides a focused toolset for collecting, analysing and integrating Tesla telemetry with home automation and dashboarding systems. It is designed for reliability and extensibility and is commonly deployed via Docker or native system packages for long-term vehicle analytics.