Charge your Powerwall overnight,
automatically.

Electricity is cheaper at night. PowerNight automates overnight Powerwall charging so you store energy at off-peak rates and use it when prices rise, without manual reserve changes or ad-hoc scripts.

The product wraps that scheduling workflow in a local-first web interface: a dashboard, a planner, an execution history, and settings screens, all tailored to the Tesla Powerwall.

How It Works

The workflow is straightforward:

• Charge from the grid overnight when electricity is cheapest
• Use stored energy during higher-priced periods
• Manage everything from a browser on the local network

PowerNight is built for households that already think in terms of tariff windows, battery reserve, and daily energy arbitrage.

Quick Start

PowerNight runs as a Docker container. A basic setup takes three steps:

1. Pull the image from Docker Hub
2. Configure mounted volumes for persistent storage
3. Open the web UI and connect your Tesla account

The README covers detailed setup including Synology NAS deployment and multi-architecture support.

Why Local-First

PowerNight runs on your local network by design. No cloud subscription, no API middleman, no data leaving your home. The trade-off is intentional: the README explicitly warns against exposing the web UI to the public internet.

Docker with SQLite gives you persistence without infrastructure. Deploy once, update by pulling a new image.

Interfaces

PowerNight combines four operational views:

• Dashboard: live battery level, power flow, and site state
• Planner: scheduled reserve changes for overnight charging
• History: execution results, logs, and recent activity
• Settings: Tesla authorization, site selection, and timezone

Install from Docker Hub or review the full setup guide. Contributions welcome on GitHub.