Inside information

Publication of inside information

Inside information is any precise unpublished piece of information which relates, directly or indirectly, to a wholesale product and which, if it were made public, would be likely to significantly affect the prices of those wholesale products.

When a piece of inside information is available to a market participant, they are obliged to publish them fully and in due time on their website and/or the centralised website prior to the realisation of a transaction related to the information.

If a piece of inside information is disclosed unintentionally, a market participant, i.e. the person engaged by the market participant to act on their account is obliged to publish that piece of information fully without delay in line with REMIT Rules.

Inside information which are published in particular are pieces of information related to capacity and the use of electricity and natural gas facilities for production, storage and consumption, electricity i.e. natural gas transmission system, natural gas storage capacity and use, natural gas regasification terminal, including data on planned or unplanned unavailability of all energy systems, i.e. facilities. The information about key infrastructure and information on the assessment of demand for improvement of its protection are not published.

Delay of inside information publication

The publication of inside information may be delayed by a market participant only if the publication would endanger their legitimate interest, if the delay of publication does not mislead the public, if they can provide the confidentiality of that piece of information and if decisions related to wholesale market trade are not made based on that decision.

When all conditions for the delay of inside information publication are met, market participant reports this piece of information with the Agency on the Template REMIT R-3 indicating reasons for the delay of its publication.

Prohibition of inside information trade

REMIT Rules regulate in more detail that the one with inside information on the wholesale market product available is prohibited from:

  1. the use of the information while acquiring or disposing of or trying to acquire or dispose of, use the information which relates to that wholesale market product for their own account or for the account of a third party, either directly or indirectly;
  2. transmit, i.e. disclose that information to any other person unless such disclosure is made in the normal course of the exercise of their employment, profession or duties;
  3. 3) recommend or induce another person, on the basis of inside information, to acquire or dispose of wholesale energy products to which that information relates.

The prohibition of inside information trading also relates to any person aware or supposed to be aware that they have inside information available.

Market participants are obliged to inform the Agency when filing the registration on the persons with an access to inside information registered to the Agency on Template REMIT R-1.

The prohibition of transactions without prior publication does not relate to:

  1. electricity and natural gas producers, operators of natural gas storage facilities or operators of natural gas regasification terminals for liquified natural gas with the sole purpose of transaction is to cover the immediate physical loss resulting from unplanned outages, where not to do so would result in the market participant not being able to meet existing contractual obligations where such action is undertaken in agreement with the transmission system operator(s) concerned in order to ensure safe and secure operation of the system. In this case, the transaction is reported to the Agency within Template REMIT R-6.
  2. market participant who:
    • realises the transaction in order to comply with due commitment to purchase/sell wholesale market product arising from the concluded contract or trading order which was placed prior to the time when the inside information became available to the person;
    • acts in line with regulations regulating implementation of emergency measures when the body imposing emergency measures has already acted in order to provide secure supply of electricity or natural gas and if market mechanisms are suspended. In this case, the body in charge of measures planning informs the Agency on the exercise of exemption within the Template REMIT R-4;
    • is the transmission system operator purchasing energy, i.e. natural gas in order to provide safe and reliable system operation and ancillary services.

The exercise of exemption from prohibition of use and disclosure of inside information is reported to the Agency within Template REMIT R-4.

News
AERS: Approval of the EMS AD Transmission Network Code

Belgrade, 26 December 2025

On the session held on 25 December 2025, the Council of the Energy Agency of the Republic of Serbia has adopted a decision granting approval to the Transmission Network Code prepared by the transmission system operator of the Republic of Serbia, EMS AD.

The main reason for adopting the new Transmission Network Code is alignment with the new Energy Law of November 2024, the Decree on the Conditions of Electricity Delivery and Supply, as well as harmonization with European network codes (adapted EU regulations) that have been transposed into the legislative framework of the Republic of Serbia.


AERS: Approval of the Electricity Market Code

Belgrade, 26 December 2025

On the session held on 25 December 2025, the Council of the Energy Agency of the Republic of Serbia has adopted a decision granting approval to the amendments to the Electricity Market Code prepared by the transmission system operator of the Republic of Serbia, EMS AD.

The main reason for adopting the new Electricity Market Code is alignment with the new legislative framework, as well as the improvement of processes and the elimination of shortcomings recognised in previous practice.


Approval of the EMS AD Transmission System Development Plan for the Period 2025–2034 and the Investment Plan for the Period 2025–2027

Belgrade, 18 December 2025

The Council of the Energy Agency of the Republic of Serbia has adopted decisions granting approval to the Transmission System Development Plan for the period 2025–2034 and the Investment Plan in the transmission system for the period 2025–2027, adopted by the Joint Stock Company “Elektromreža Srbije,” acting as the transmission system operator.

The Ten-year Transmission System Development Plan was prepared in accordance with the Energy Law and the Energy Development Strategy of the Republic of Serbia until 2040, with projections until 2050, as well as with the Integrated National Energy and Climate Plan.


Approval of Operational Limitations for Facilities Connecting to the Transmission System

Belgrade, 12 December 2025

On the session held on 11 December 2025, upon the request of the Joint Stock Company “Elektromreža Srbije,” the transmission system operator, the Council of the Energy Agency of the Republic of Serbia has adopted decisions approving operational limitations for battery energy storage facilities connecting to the transmission system. The Energy Law stipulates that the transmission system operator may offer a connection subject to operational limitations to an applicant for connection, provided that such limitations are approved by the Agency.


Approval of the Rules Governing the Procedure and Method for the Transmission Capacity Allocation at the Border Between Bidding Zones

Belgrade, 5 December 2025

On the session held on 4 December, the Council of the Energy Agency of the Republic of Serbia has granted its approval to the rules governing the procedure and method for the transmission capacity allocation at the border between the bidding zones of the transmission system operator of the Republic of Serbia, EMS AD, and the transmission system operators of North Macedonia (MEPSO), Romania (Transelectrica), Hungary (MAVIR), Bulgaria (ESO), Croatia (HOPS) and Montenegro (CGES) for 2026. 


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