OKTE, a.s.

OKTE, a.s. (Short-term Electricity Market Operator) is a Slovak joint-stock company based in Bratislava that operates the organised short-term electricity market and acts as the clearing agent for electricity imbalances in the Slovak Republic. It began performing its activities on 1 January 2011 and was established as a subsidiary of Slovenská elektrizačná prenosová sústava, a.s. (SEPS), the Slovak transmission system operator, which owns 100% of its shares. The company is registered in the Business Register of the Municipal Court Bratislava III under section Sa, insert No 5087/B, with Commercial Register Number 45 687 862 and VAT Number SK2023089728. Within the Slovak electricity market, OKTE is classified by the Act on the Energy Sector as an entity subject to regulation by the Regulatory Office for Network Industries (RONI), and it holds a licence to act as the Short-term Electricity Market Operator. Its core activities include organising and evaluating the organised short-term cross-border electricity market and providing clearing of imbalances. It also operates trading platforms such as XMtrade, publishes market results and system imbalance data, and is extending its scope of activities to include the administration and collection of metered values and central invoicing. OKTE states that it treats all electricity market participants on the basis of open, transparent and non-discriminatory conditions. It cooperates with several state institutions, including the Ministry of Economy of the Slovak Republic and the Regulatory Office for Network Industries, in carrying out its activities. Its operations are governed by international and national legal documents, including the Act on the Energy Sector, the Act on Regulation of Network Industries, the Market Rules ordinance and its own Operation Order. As a regulated market operator, OKTE does not sell electricity directly to consumers; rather, it provides the market infrastructure, settlement and data services that underpin the Slovak short-term electricity market. Its public communications include market results, news about consultations and operational changes, and a newsletter for market participants.

OKTE, a.s. was established as a subsidiary of Slovenská elektrizačná prenosová sústava, a.s. (SEPS), the Slovak transmission system operator, which owns 100% of its shares. The company began performing its activities as the Short-term Electricity Market Operator on 1 January 2011. It was registered in the Business Register of the Municipal Court Bratislava III, section Sa, insert No 5087/B, with its seat at Prievozská 4D, 821 09 Bratislava. From its inception, OKTE has been classified under the Slovak Act on the Energy Sector as an entity subject to regulation by the Regulatory Office for Network Industries (RONI) and as a licence holder for activities as Short-term Electricity Market Operator. Its mandate includes organising and evaluating the organised short-term cross-border electricity market and providing clearing of imbalances in the Slovak Republic. It operates according to the Act on the Energy Sector (No. 251/2012 Coll.), the Act on Regulation of Network Industries (No. 250/2012 Coll.), the Market Rules ordinance (No. 207/2023 Coll.) and its own Operation Order. Over time, OKTE has extended its scope of activities, particularly into the administration and collection of metered values and central invoicing. It operates trading platforms such as XMtrade and publishes market results, system imbalance trends and other data. It also conducts public consultations on proposed changes to its operational rules and maintains a newsletter for market participants. As a regulated entity, OKTE cooperates with state institutions including the Ministry of Economy of the Slovak Republic and RONI. Its activities are governed by both international and national legal documents, and it treats all electricity market participants on the basis of open, transparent and non-discriminatory conditions.

• OKTE, a.s. begins performing its activities as the Short-term Electricity Market Operator.

• Public consultation held from 16 July to 30 July 2026 on proposed changes to OKTE's operational rules.

• New change to the Operation Order of OKTE, a.s., approved by the Regulatory Office, takes effect.

• Public consultation begins on upcoming changes to the operational rules.

Regulated short-term electricity market operator and clearing agent for the Slovak Republic, operating on open, transparent and non-discriminatory terms.

• XMtrade trading platform

  Platform for short-term electricity trading, publishing market results such as base, off-peak and peak prices.

• Imbalance settlement (ISZO)

  Clearing and settlement of imbalances for subjects of settlement, including registration of daily diagrams and evaluation of imbalance payments.

1. 1Homepage | OKTE, a.s.okte.sk
2. 2About company | Information | OKTE, a.s.okte.sk
3. 3Privacy | Information | OKTE, a.s.okte.sk
4. 4Imbalance settlement | OKTE, a.s.okte.sk
5. 5Okte - Wikidatawikidata.org