PT15M
38 active zones
AT, BE, BG, CZ, DE-LU, DK1, DK2, EE, ES, FI, FR, GR, HR, HU, IT-CALA, IT-CNOR, IT-CSUD, IT-NORD, IT-SARD, IT-SICI, IT-SUD, LT, LV, NL, NO1, NO2, NO3, NO4, NO5, PL, PT, RO, SE1, SE2, SE3, SE4, SI, SK
Citable answer · live evidence
Native 15-minute electricity prices versus hourly compatibility feeds
Why native market intervals matter for EV, battery, heat-pump and home-energy automation.
Short answer
Use the interval published by the market. Converting a 15-minute curve to hourly averages removes quarter-hour spikes and troughs that determine when flexible household loads should run. Aggregate only at the final display or billing boundary; keep automation and optimization on native intervals.
Current European zone registry
PT30M
1 active zone
GB
PT60M
12 active zones
AL, BA, CH, IE-SEM, MD, ME, MK, MT, RS, TR, UA, XK
Registry source: Voltcast’s active zone table at request time. Open any zone at /zones to inspect its current resolution and coverage.
| Decision | Native curve | Hourly average |
|---|---|---|
| EV / battery start time | Preserves each market interval | Can hide the cheapest quarter-hour |
| Cost reporting | Most precise input | Suitable when the tariff settles hourly |
| Legacy compatibility | Requires interval-aware clients | Useful for older integrations |
Reproduce and cite
Retrieve the underlying price or forecast curve through the documented API. Cite as “Voltcast Research, https://voltcast.com/research/native-15-minute-electricity-prices, accessed 2026-08-29.”