Estonia mFRR clearing prices
Manually-activated Frequency Restoration Reserve (mFRR) energy clearing prices for the Estonian bidding zone. One value per 15-minute Market Time Unit, per direction (up or down). Sourced from Elering and the Baltic Transparency Dashboard, refreshed hourly.
Last refresh: 28 Apr 2026, 00:35 UTC
Source: Elering / Baltic Transparency Dashboard via Volton, CC-BY-4.0.
Methodology
Each row represents the marginal clearing price set by the Common Merit Order List that mFRR activations cleared at, for a single 15-minute MTU and a single direction. Up = system was short of energy and mFRR ramped generation up; down = system was long and mFRR ramped generation down.
Estonia joined the EU MARI platform on 9 October 2024. Since then, Baltic mFRR clearing prices are derived from the cross-border MARI auction rather than the legacy Baltic-only auction. Prices are capped at ±10 000 EUR/MWh by MARI and have hit the cap multiple times during scarcity events.
Prices may be null for an MTU when no activation occurred in that direction.
FAQ
- Why are some prices very high or very low?
- During system scarcity (low wind, large generator outage, interconnector trip) the marginal mFRR bid that clears can be expensive — bids near the platform cap of 10 000 EUR/MWh have settled on multiple occasions in 2025–2026. Negative prices occur when the system is oversupplied and downward mFRR is cheap to procure.
- How does this compare to the day-ahead spot price?
- Day-ahead is forecast-based and clears once at noon for every hour of the next day. mFRR is real-time activation: it covers the gap between the day-ahead forecast and what actually happened, so it usually moves more than spot during balancing events.
- Can I download the underlying data?
- Yes — see the developer API page for stable JSON URLs. Data is published under CC-BY-4.0; please cite Volton and the upstream source (Elering / Baltic Transparency Dashboard).
Get this data
JSON download and stable URL pattern available on the developer API page.