20–40% cost reduction
End users save on every charging session by shifting load to off-peak hours.
Use Case
Cut EV Charging Costs by Up to 40%
Feed real-time day-ahead prices into your charging algorithm to shift sessions to the cheapest hours - automatically.
The Problem
EV charging apps that use fixed schedules leave money on the table. Day-ahead electricity prices fluctuate by a factor of 3–10× between cheapest and most expensive hours. Without live tariff data, you cannot optimize when to charge.
The Solution
tounify delivers EPEX Spot and Nord Pool day-ahead prices for 19+ European countries - updated daily as soon as new prices are published (typically by 13:00 CET). Your algorithm gets the exact per-hour price array it needs to find the cheapest charging window.
What you get
Daily price updates
Day-ahead prices arrive by 13:00 CET, giving your app 11+ hours to plan the next day.
Static tariffs included
For customers on fixed-rate plans, static tariff data covers time-of-use and day/night rates.
No consent required
Direct B2B API - no end-user OAuth flows or data sharing agreements needed.
One API call away
Start with a single authenticated request. No setup beyond a Bearer token.
curl -H "Authorization: Bearer YOUR_KEY" https://api.tounify.ioGET /v2/DE/dayahead?consumption_tariff={id}