Green Planet Energy API

A Python API client for retrieving electricity pricing data from Green Planet Energy, a German renewable energy provider.

This library is primarily designed for use with Home Assistant but can be used in any Python project that needs access to Green Planet Energy pricing data.

Features

• Async/await support
• Fetch hourly electricity prices for today and tomorrow
• Handles German decimal formatting
• Comprehensive error handling
• Type hints for better IDE support
• Lightweight with minimal dependencies

Installation

pip install greenplanet-energy-api

Quick Start

import asyncio
from greenplanet_energy_api import GreenPlanetEnergyAPI

async def main():
    async with GreenPlanetEnergyAPI() as api:
        # Get electricity prices for today and tomorrow
        prices = await api.get_electricity_prices()

        # Access today's prices
        for hour in range(24):
            price_key = f"gpe_price_{hour:02d}"
            if price_key in prices:
                print(f"Hour {hour:02d}: {prices[price_key]} €/kWh")

        # Access tomorrow's prices
        for hour in range(24):
            price_key = f"gpe_price_{hour:02d}_tomorrow"
            if price_key in prices:
                print(f"Tomorrow Hour {hour:02d}: {prices[price_key]} €/kWh")

if __name__ == "__main__":
    asyncio.run(main())

API Reference

GreenPlanetEnergyAPI

The main API client class.

Methods

• async get_electricity_prices() -> dict[str, float]: Fetch electricity prices for today and tomorrow
• async close(): Close the HTTP session
• Context manager support for automatic cleanup

Response Format

The API returns a dictionary with the following keys:

• gpe_price_00 to gpe_price_23: Today's hourly prices (€/kWh)
• gpe_price_00_tomorrow to gpe_price_23_tomorrow: Tomorrow's hourly prices (€/kWh)

Error Handling

The library raises the following exceptions:

• GreenPlanetEnergyError: Base exception class
• GreenPlanetEnergyConnectionError: Network/connection issues
• GreenPlanetEnergyAPIError: API-specific errors

Development

Setup

git clone https://github.com/petschni/greenplanet-energy-api.git
cd greenplanet-energy-api
pip install -e ".[dev]"

Running Tests

pytest

Code Quality

black src tests
ruff check src tests
mypy src

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Support

If you encounter any issues or have questions:

1. Check the Issues page
2. Create a new issue if needed
3. For Home Assistant related issues, please use the Home Assistant Core Issues with the green_planet_energy label

Disclaimer

This library is not officially associated with Green Planet Energy. It uses publicly available endpoints for retrieving pricing data.