Elering
Elering is the Estonian Transmission System Operator, owned 100% by the Republic of Estonia. It operates the high-voltage grid (110 kV+), the cross-border interconnections (Estlink to Finland, 330 kV synchronous to Latvia), and the Datahub through which all retail electricity-market data exchange flows. Elering certifies BSPs and BRPs; without its approval, commercial activity on the wholesale market is impossible.
Elering is the Estonian Transmission System Operator, owned 100% by the Republic of Estonia. It operates the high-voltage grid (110 kV and above), the cross-border interconnections (Estlink HVDC to Finland, 330 kV synchronous to Latvia — including a third interconnection commissioned 2019–2020), the Datahub through which all retail electricity-market data flows, and the imbalance-settlement clearinghouse for every Estonian BRP.
Unbundled from Eesti Energia in 2010
The company itself dates back to 1998 as OÜ Põhivõrk, an Eesti Energia operating unit. It was renamed Elering in 2009 and ownership-unbundled from Eesti Energia in January 2010 under the EU Third Energy Package. The two now sit on opposite sides of the market — Elering as neutral system operator, Eesti Energia as the largest market participant.
Operational scope
Elering is responsible for: balancing the Estonian control area in real time (procuring FCR, aFRR, mFRR from certified BSPs), settling imbalances financially with BRPs, certifying market participants, operating the cross-border allocation auctions, and running national emergency-response. Since 9 February 2025 — when the Baltic states left the Russian IPS/UPS grid — Elering has operated synchronously with Continental Europe.
Why Volton works closely with Elering
Every commercial activity Volton performs touches Elering: BSP certification (granted 2024), BRP balance agreement, Datahub integration for retail switching, imbalance settlement for the aggregated portfolio, aFRR bidding into the PICASSO platform via Elering's national gateway. The TSO is the counterparty for almost everything we do.
Dažniausiai užduodami klausimai
- What is Elering?
- Elering AS is the Estonian Transmission System Operator, owned 100% by the Republic of Estonia. It operates the 110 kV+ transmission grid, cross-border interconnections (EstLink to Finland, synchronous 330 kV ties to Latvia), the Datahub for electricity-market data exchange, and the Estonian gas transmission system. Elering is a full member of ENTSO-E since 2008.
- What does Elering do besides running the grid?
- Several regulated functions. Procures balancing reserves (FCR, aFRR, mFRR) jointly with AST and Litgrid through the Baltic BBCM. Activates balancing energy through MARI and PICASSO. Runs the imbalance settlement for BRPs. Certifies BSPs and BRPs through prequalification. Operates the Datahub. Plans network development. Reports to ENTSO-E and ACER. Is regulated by Konkurentsiamet on tariffs and methodologies.
- What's Elering's role in the Baltic Coordinated Balancing Area?
- Elering is one of three Baltic TSOs (with AST in Latvia and Litgrid in Lithuania) that jointly operate the Baltic CoBA — the cooperation framework for balancing-services exchange across the three countries. Joint balance settlement has run since January 2018; joint capacity procurement (BBCM) launched 4 February 2025. Since the 9 February 2025 CESA synchronisation, the three operate as one LFC block within the Continental European synchronous area.
- How does Elering make money?
- Through regulated tariffs approved by Konkurentsiamet — primarily the transmission tariff applied to grid users (BRPs and DSOs), plus the balance-service tariff (which includes the neutrality component) applied to BRPs. Article 44 of EBGL requires Elering to be financially neutral on balancing operations specifically — neither profiting nor losing structurally. Profit on the regulated business is set by the regulator within the WACC framework.