January 15, 2026

by AEA in News

Bulgaria proposes changes to electricity trading rules to include new market participants

The Energy and Water Regulatory Commission of has proposed its amendments to Bulgaria’s electricity trading rules.

The changes aim to align electricity trading rules with recent updates to the country’s Energy Act and a legal and operational framework for new categories of market participants, according to law firm CMS Bulgaria.

New categories include active customers (active buyers), citizen energy communities, self-consumers (prosumers) of electricity from renewable sources, and renewable energy communities.

The Energy and Water Regulatory Commission (EWRC) held a public consultation event today on its draft changes in electricity trading rules. Representatives of the three distribution system operators (DSOs), the Sofia Municipality and the Bulgarian Association for Electrical Engineering and Electronics (BASEL) participated in the discussion.

These changes are designed to encourage electricity production for self-consumption

These changes are designed to encourage electricity production for self-consumption, minimize distribution losses, and foster more predictable energy pricing, a CMS e-alert reads. Furthermore, the amendments would ensure the Bulgarian rules comply with EU law, specifically directives 2018/2001 and 2019/944 and Regulation 2019/943.

The proposed draft introduces several specific provisions to facilitate the participation of the said new entities, CMS stressed.

It explicitly defines how new participants can join the market and the types of contracts they are permitted to conclude.

The new rules allow for the grouping of different sites for joint electricity production or consumption. They also set technical mandates for commercial metering devices, including remote reading capabilities.

The new rules also define calculation of generated, shared and sold electricity

The authors outlined procedures for registering or deregistering participants and groups with network operators. The update would impose an obligation to maintain a public register of these participants.

The proposed rules define the calculation of generated, shared and sold electricity. The framework guarantees that data is exchanged between suppliers, network operators, and group members, ensuring it is reflected in monthly bills.

Stakeholders were invited to submit their proposals from January 8 until January 22, CMS underscored.

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January 14, 2026

by AEA in News

Bulgaria proposes changes to electricity trading rules to include new market participants

The Energy and Water Regulatory Commission of has proposed its amendments to Bulgaria’s electricity trading rules.

New categories include active customers (active buyers), citizen energy communities, self-consumers (prosumers) of electricity from renewable sources, and renewable energy communities.

These changes are designed to encourage electricity production for self-consumption

The proposed draft introduces several specific provisions to facilitate the participation of the said new entities, CMS stressed.

It explicitly defines how new participants can join the market and the types of contracts they are permitted to conclude.

The new rules also define calculation of generated, shared and sold electricity

Stakeholders were invited to submit their proposals from January 8 until January 22, CMS underscored.

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January 7, 2026

by AEA in News

Slovenian DSO registers enormous interest in connecting BESS to distribution grid

Applications for 400 MW have been submitted for the connection of battery energy storage systems to the distribution grid, according to Elektro Ljubljana, one of the distribution system operators in Slovenia.

Slovenia’s distribution system operators (DSOs) are getting an increasing number of requests to connect battery storage systems directly to distribution substations. Notably, in early May, the five Slovenian DSOs fed more electricity into the transmission network than they drew from it for the first time, and for two consecutive days.

Matjaž Osvald, Executive Director of Operation and Development of the Distribution Network in DSO Elektro Ljubljana, pointed out that last summer the company observed increased investor interest in directly connecting batteries to distribution substations.

It issued installation terms for 90 MW, and requests for at least as much are waiting to be processed, he added.

Installation terms were issued for batteries with 90 MW in overall capability

However, the company estimated there could be at least 300 MW more in applications. Due to the technical limitations of existing substations, much less could be connected. Substations in the Elektro Ljubljana area are already overloaded and don’t allow additional connections of larger devices, Osvald explained.

Furthermore, upgrading or constructing new facilities is a lengthy process, he pointed out. Current delivery times for transformers alone are longer than two years, with financing also being an issue.

According to Osvald, batteries would be used to store energy from solar power plants, and three types of investors have emerged. One group wants to install batteries to provide system services for system operators on the European market or for electricity trading.

Three types of investors are submitting applications

The second and third batch aim to bring their projects to a certain stage of development and then sell them – either they would purchase land, obtain permits, and install a battery, or only buy land and obtain permits for energy storage.

Osvald expressed concern about the idea of using batteries solely to provide system services in the European market. In that case, there would be no benefits for the Slovenian distribution network, but it could create problems, he stressed.

Such use would occupy all available connection capacity in substations, which, with increasing electrification, could lead to no spare capacity for other grid users, according to Osvald.

He also pointed to the value of BESS for the distribution network in reducing peak loads and consumption.

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January 7, 2026

by AEA in News

Slovenian DSO registers enormous interest in connecting BESS to distribution grid

Applications for 400 MW have been submitted for the connection of battery energy storage systems to the distribution grid, according to Elektro Ljubljana, one of the distribution system operators in Slovenia.

It issued installation terms for 90 MW, and requests for at least as much are waiting to be processed, he added.

Installation terms were issued for batteries with 90 MW in overall capability

Three types of investors are submitting applications

Such use would occupy all available connection capacity in substations, which, with increasing electrification, could lead to no spare capacity for other grid users, according to Osvald.

He also pointed to the value of BESS for the distribution network in reducing peak loads and consumption.

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January 4, 2026

by AEA in News

Elektroprivreda BiH to invest EUR 885 million over next three years

Government-controlled power company Elektroprivreda BiH plans to invest BAM 1.73 billion (EUR 884.6 million) over the next three years, according to its 2026-2028 business plan.

The investments would be financed through loans, and BAM 538 million (EUR 275 million) from own funds of Elektroprivreda BiH (EPBiH), which operates in the Federation of BiH. Of note, it is one of the two entities making up Bosnia and Herzegovina. The other one is the Republic of Srpska.

In line with available funds and restructuring plans, the company intends to continue investing in coal mines within the EPBiH group over the three-year period.

The goal is a stable and sustainable coal production at the volume needed for the planned operation of the thermal power plants, the utility said.

The previous business plan, for the 2025-2027 period, provided for investments of BAM 2.1 billion (EUR 1.074 billion).

The three-year period should be marked by the construction of a large number of PV plants

EPBiH has highlighted the construction of new renewable energy power plants as a long-term strategic and priority goal. The construction of several solar power plants at already identified locations are particularly significant, the plan reads.

The upcoming three-year period should be marked by the construction of a large number of PV facilities at multiple locations on mining sites, company-owned land, on the roofs of its own facilities and those of its customers, EPBiH explained.

EPBiH also plans to acquire operational renewable energy facilities as well as projects in development. The plan envisages the purchase or lease of land suitable for the construction of solar power plants.

Positive business performance and maintaining the position as the dominant electricity supplier in BiH are also outlined in the business plan, adopted by the company’s assembly.

Desulfurization and denitrification of flue gases projects are planned for two thermal power plants

EPBiH has launched flue gas desulfurization and denitrification projects for its Tuzla and Kakanj coal-fired power plants. It would also upgrade unit 7 in Kakanj, unit 4 in Tuzla, and the Salakovac hydropower plant.

The document envisages the establishment of the distribution system operator (DSO), based on the provisions of the Law on Electricity of the Federation of BiH. It came into force in August 2023.

The law stipulates unbundling the distribution activity from EPBiH and establishing the DSO as a separate legal entity, a 100%-owned subsidiary, the company underlined.

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January 1, 2026

by AEA in News

Elektroprivreda BiH to invest EUR 885 million over next three years

Government-controlled power company Elektroprivreda BiH plans to invest BAM 1.73 billion (EUR 884.6 million) over the next three years, according to its 2026-2028 business plan.

In line with available funds and restructuring plans, the company intends to continue investing in coal mines within the EPBiH group over the three-year period.

The goal is a stable and sustainable coal production at the volume needed for the planned operation of the thermal power plants, the utility said.

The previous business plan, for the 2025-2027 period, provided for investments of BAM 2.1 billion (EUR 1.074 billion).

The three-year period should be marked by the construction of a large number of PV plants

Positive business performance and maintaining the position as the dominant electricity supplier in BiH are also outlined in the business plan, adopted by the company’s assembly.

Desulfurization and denitrification of flue gases projects are planned for two thermal power plants

The document envisages the establishment of the distribution system operator (DSO), based on the provisions of the Law on Electricity of the Federation of BiH. It came into force in August 2023.

The law stipulates unbundling the distribution activity from EPBiH and establishing the DSO as a separate legal entity, a 100%-owned subsidiary, the company underlined.

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December 2, 2025

by AEA in News

Slovenia’s TSO ELES joins European Network for Cyber Security

Slovenia’s transmission system operator ELES has joined the European Network for Cyber Security, reinforcing collaborative efforts to protect Europe’s electricity grid from evolving cyber threats.

The partnership will give ELES access to the European Network for Cyber Security’s (ENCS) collaborative threat intelligence, specialist training and technical expertise – strengthening its ability to detect, prevent and respond to cyber incidents targeting high-voltage networks across Slovenia and beyond, ENCS said.

The move comes amid rising pressure on Europe’s grid operators. According to the European Union Agency for Cybersecurity’s ENISA Threat Landscape 2025, operational technology – the backbone of electricity networks – faces an increasing range of cyber threats, with incidents growing in frequency and sophistication.

As nation-state activity intensifies and consumer-connected devices expand the attack surface, coordinated action to protect critical infrastructure has never been more essential, the network underlined.

Nijk: Europe’s power systems are only as strong as their weakest link

Of note, Slovenia started the development in March of a robust cybersecurity framework for the electricity sector, based on an AI system.

“Europe’s power systems are only as strong as their weakest link,” ENCS Managing Director Anjos Nijk stressed.

ELES’s new membership strengthens joint defences and brings valuable regional expertise to the table, he explained. As Slovenia’s grid underpins stability across Central Europe, its participation will help drive the shared strategies and capabilities needed to counter evolving cyber threats, Nijk added.

Rolih: Grid cybersecurity is a team effort

Gorazd Rolih, SOC Manager at ELES, recalled that grid cybersecurity is a team effort.

“Joining ENCS allows us to both contribute to and benefit from Europe-wide collaboration, sharing intelligence, best practices and operational insights that make every member stronger,” he said.

The European Network for Cyber Security is a non-profit membership organisation that brings together critical infrastructure stakeholders and security experts to deploy secure European critical energy grids and infrastructure.

Founded in 2012, ENCS provides cybersecurity solutions and counsel dedicated to the needs of national distribution system operators (DSO), transmission system operators (TSOs) and regulators.

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November 17, 2025

by AEA in News

Slovenia and Italy to upgrade electricity interconnectors

Slovenian transmission and distribution system operator ELES and Italian transmission system operator Terna agreed to upgrade their cross-border electricity network in an investment of EUR 250 million. The project aims to increase the transmission capacity between the two countries by 600 MW, strengthening supply and trade.

After a decade of coordination, ELES and Terna signed an agreement to raise the electricity transmission capacity between Slovenia and Italy by 600 MW or more than 50%. According to ELES, it is an important step in market integration and strengthening the reliability of the interconnected electricity system.

Interconnections between Slovenia and Italy are currently among the most heavily loaded ones in the Slovenian network, the country’s TSO pointed out.

As ELES further explained, with the growth of electricity imports and exports, there is an increasing need to strengthen transmission routes between the two countries. The company expects a rise in electricity imports in the countries gradually phasing out fossil fuel–based production to further increase the demand for cross-border transmission capacity.

The project consists of three upgrades

The project includes three main improvements. On the Slovenian side, the phase-shifting transformer at the Divača substation would be upgraded, alongside adding a third unit, which enables full utilization of the capacity of the 400 kV transmission line between Divača and Redipuglia (Sredipolje). The current transmission capacity, 1,200 megavolt-amperes (MVA), would be lifted to 1,800 MVA.

On the 220 kV transmission line between Divača and Padrice in Italy, low-sag conductors, capable of withstanding higher temperatures will be installed, ELES said. The transmission capacity would be doubled to 700 MVA.

On the Italian side, the existing 220 kV Padriče-Redipuglia connection and the Redipuglia substation are to be upgraded with a new phase-shifting transformer. It is crucial for managing internal power flows, the update reads.

“With an additional 600 MW of cross-border capacity, Slovenia is solidifying its role as a key electricity hub between Central and Southern Europe and as a reliable regional partner. This is a strategic investment in the future, ensuring reliability, resilience, and connectivity of our grid in the decades when electricity will become the main energy currency,” said ELES CEO Aleksander Mervar.

Slovenia’s share of the project is estimated at EUR 90 million

The total value of the project is EUR 250 million, with the Slovenian share estimated at EUR 90 million and the Italian side securing EUR 160 million. Pending all necessary permits and documentation, construction is planned to begin in 2029, and completion is expected by the end of 2031.

ELES announced it would seek European funds to finance the Slovenian side of the investment.

“The agreement not only strengthens the historic partnership between the two transmission system operators but also marks an important step toward developing and implementing innovative solutions that enhance the efficiency of transmission network investments. The agreement encourages system operators to introduce not only capital-intensive projects but also solutions with lower capital requirements that can increase net benefits and investment returns for all electricity system users,” said Enrico Maria Carlini, Head of Power System Planning and Permitting at Terna.

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October 31, 2025

by AEA in News

Serbia’s distribution system operator plans comprehensive restructuring

Serbia’s distribution system operator, Elektrodistribucija Srbije (EDS), plans a comprehensive restructuring to improve financial stability, operational efficiency, and investment planning capacity, in line with the country’s stand-by arrangement with the International Monetary Fund (IMF).

EDS has launched a tender to select a consultant to develop a restructuring plan. The deadline for submitting bids is set for November 28.

The consultant’s job will consist of two phases. The first phase involves analyzing the existing business model and designing and developing a new sustainable model. In the second phase, the consultant will support the implementation of the recommendations defined in the first phase, as well as the guidelines arising from the proposed financial restructuring plan, EDS has announced.

The consultant is to develop a restructuring plan and support its implementation

During the first phase, the consultant will analyze EDS’ current operations, including its financial position, key business processes, management structure, and IT systems. Based on the analysis, a target business model and a financial restructuring plan will be developed, including scenarios and stress tests to assess the company’s resilience to potential challenges.

The second phase will focus on implementing the recommendations and the proposed model, including coordination with internal teams, monitoring progress, evaluating the effectiveness of changes, and supporting employee training. Special attention will be given to digitalization, business process optimization, and customer service improvements.

The project should help digitalize business processes

Some elements of EDS’s operations that are expected to be improved include meter issuance and reading, as well as electricity loss management. The consultant’s job also involves mapping IT systems and projects that support the automation and digitalization of business processes, according to EDS.

The consultant will also be expected to develop a comprehensive implementation plan, including timelines, resource allocation, and project risk management strategies, and provide regular progress reports highlighting challenges and proposing steps to address them.

A final report on the restructuring efforts will also be required, including lessons learned and recommendations for future initiatives, according to EDS.

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October 3, 2025

by AEA in News

Croatia’s HEP to install 90 solar power plants on rooftops of its facilities

Croatia’s power utility Hrvatska Elektroprivreda intends to install 90 solar power plants on its facilities across Croatia.

HEP ESCO, a subsidiary of Hrvatska Elektroprivreda (HEP), has launched a public procurement for the installation of 90 photovoltaic plants under a design-and-build model and on a turnkey basis.

The firm develops, implements, and finances energy efficiency projects based on the ESCO model.

The investment is estimated at EUR 5.3 million, and the deadline for submitting bids is November 3.

HEP ESCO plans to sign a contract with the best bidder within 90 days after selecting it. The deadline for the completion of works will be 18 months, according to the public call.

Five groups of solar power plants

The public call is divided into five geographical groups in Croatia.

Group 1 is for Zagreb and its surroundings. Solar panels would be installed at ten locations, with an estimated investment of EUR 1.2 million. Group 2 covers hydropower plants Zavrlje, Orlovac, Peruća, and Zakučaci in the coastal region of Dalmatia, as well as power distribution facilities. The works in the segment are valued at EUR 770,000, local media reported.

Four cities in the region of Slavonia make up the third group, with 20 locations. Solar panels would be installed for EUR 1.21 million in Virovitica, Požega, Vinkovci, and Vukovar.

HEP has over 50 solar power plants on the rooftops of its buildings and facilities

A total of 15 locations in the areas of Međimurje and Zagorje and the Sisak-Moslavina county, and including hydropower plant Ozalj, all in northwestern Croatia, are in the fourth group. The estimated value is EUR 1.1 million.

The value of the investment in Istria, Primorje, and Gorski Kotar is EUR 1.03 million. It entails the Fužine hydropower plant, Rijeka, Vinodol, and electricity distribution facilities.

Of note, HEP has more than 50 solar power plants on the rooftops of its buildings and facilities.

HEP Proizvodnja, HEP’s power production arm, has 12 PV plants on administrative buildings, thermal power plants and hydropower plants. The total capacity is about 1.5 MW. HEP ODS, the country’s distribution system operator, has another 44 solar power plants with a total capacity of 1.1 MW on its roofs.

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