New since October 2025

15-Minute Electricity Prices Revolution

On 1 October 2025, the European electricity market was revolutionized: instead of hourly prices, there are now quarter-hourly prices. Our API already fully supports this!

API Documentation

What has changed?

Before 1 October 2025

  • Electricity prices only hourly (24 prices per day)
  • Less precise energy optimization

From 1 October 2025

  • 15-minute prices (96 prices per day)
  • 4× more precise energy optimization possible

API Integration: Ready to use

🔧 New Resolution Parameter

Our API now supports the resolution parameter for selecting the time resolution: resolution

HOURLY (Standard)

Hourly average prices – as before

/api/v1/predictions/next_48_hours?resolution=HOURLY

QUARTER_HOURLY (New!)

15-minute intervals for maximum precision

/api/v1/predictions/next_48_hours?resolution=QUARTER_HOURLY
Full API Documentation →

📊 Data Format

With QUARTER_HOURLY you now get:

  • 96 price entries instead of 48 (for 2 days)
  • Timestamps every 15 minutes (00:00, 00:15, 00:30, 00:45)
  • Individual prices for each 15-minute window
Find cheapest hours →

Smart Home Integrations

EVCC Integration

Electric vehicle charge management

Available now

Ab EVCC Version 0.209.0 From EVCC version 0.209.0 onwards, 15-minute prices are fully supported!

What you need to do:

  1. Update EVCC to version 0.209.0+
  2. Make sure the resolution parameter is set correctly. You may need to adjust your evcc.conf. resolution

Benefit: Your electric car charges automatically in the cheapest 15-minute windows!

EVCC Setup → EVCC.io

Home Assistant

Smart Home Automation

Integration required

The integration via ha_epex_spot needs to be updated. ha_epex_spot

Current status:

  • Integration needs to be extended for 15-minute prices; until then, hourly intervals continue to work.
  • Timeline depends on the developer

Update: Follow the GitHub Repository for updates!

GitHub Repository →

Useful Links & Resources

🔑 API Access

Create your API key and start with 15-minute prices

Create API Key →

📖 Documentation

Full API documentation with examples

Open API Docs →

🔄 Integrations

Setup guides for EVCC and other tools

Setup Guide →