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June 25, 2025
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OMV Petrom enters Bulgarian solar power market as partner in one of biggest projects

As part of its decarbonization efforts, Romanian hydrocarbons producer OMV Petrom is strengthening its presence in neighboring Bulgaria. It agreed to buy 50% of the Gabare solar power project, of 400 MW, from its developer Enery Element.

The solar power investment frenzy in most of Southeastern Europe is continuing despite rising curtailments and the frequent occurrence of negative power prices. Major developers and operators are counting on battery storage to gradually close the still widening gap between intraday peak production and consumption in spring and autumn.

Romanian oil and gas company OMV Petrom – a subsidiary of OMV – is acquiring a 50% stake in Bulgarian firm Dunav Solar Plant. It is developing the 400 MW Gabare photovoltaic project in Byala Slatina near Sofia.

Until now, the sole owner was Enery Element, a joint venture between Austrian renewable energy company Enery Development and its Bulgarian partner Element Power Group. The two sides didn’t disclose the amount. They expect to close the transaction later this year, after fulfilling certain conditions.

Partners to invest EUR 200 million in total by production launch in 2027

The solar park is expected to enter commercial operation in 2027. By then, OMV Petrom and Enery plan to invest EUR 200 million, including from external financing. They are targeting their final investment decision before the end of 2025.

Solar trackers will maximize output, which will be equivalent to the consumption of 150,000 domestic households, the Romanian company pointed out. A battery energy storage system (BESS) of up to 600 MWh in capacity is an option for future consideration, OMV Petrom added.

Neel: Natural gas and renewables complement each other

“By investing in one of the largest photovoltaic projects in Bulgaria, we are strengthening our presence on this neighbouring market and are supporting the region’s energy transition. We believe that natural gas and renewables complement each other and play a key role in reducing emissions while ensuring energy stability,” said member of the Executive Board of OMV Petrom Franck Neel, responsible for the Gas and Power division.

He added that the company would also offtake 50% of the generated electricity, through a power purchase agreement (PPA), without revealing further details.

Enery currently generates almost 700 GWh of clean electricity per year from 490 MW in installed capacity. It has 8 GW in the project pipeline in 11 countries.

Permits for PV park secured

The construction permits and the grid connection have already been secured, according to the update. At 400 MW in peak capacity, Apriltsi is the largest solar power plant in the Balkans and Eastern Europe, excluding Turkey.

However, a PV system of 550 MW in Greece is about to be completed.

OMV Petrom is the largest integrated energy producer in Southeastern Europe, with an annual group hydrocarbon production of 40 million barrels of oil equivalent in 2024. In addition, it is expanding in the segments of wind power and photovoltaics, energy storage, alternative fuels including green hydrogen, and chargers for electric vehicles.

OMV earlier expressed interest in renewables in Serbia and Hungary as well

The group has a refining capacity of 4.5 million tons. It operates an 860 MW high-efficiency gas-fired power plant. The group is present in Romania and neighbouring countries through 780 filling stations under the brands OMV and Petrom, of which 93 in Bulgaria.

At the end of last year, Austrian energy giant OMV had a 51.2% stake in OMV Petrom. The Romanian Ministry of Energy controlled 20.7% and pension funds in the country participated with 23.7% in total.

In Bulgaria, OMV Petrom started supplying natural gas to business customers last year. Following the discovery of gas resources in Romania’s Neptun Deep block in the Black Sea, it is now exploring the gas potential in Bulgaria’s Han Asparuh block. In April, the company said it approved an investment budget of EUR 1.6 billion for 2025, or over 20% more than in 2024.

Pparent company OMV, headquartered in Vienna, expressed interest last summer in the wind and solar power potential of Romania, Serbia, Bulgaria and Hungary.

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June 25, 2025
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Alteo building solar park with battery storage for MOL Group

MOL’s 37.4 MW solar power plant with a battery energy storage system (BESS) of 40 MWh will contribute to the energy independence of its oil and gas complex in southern Hungary. Alteo is the contractor building the facility. The battery segment has received grants totaling EUR 20.5 million.

MOL Group marked the start of construction of a solar park and BESS at its Algyő site in Csongrád-Csanád county. The Hungarian company pointed out that smart green transition, reducing external energy consumption, is a key element of its Shape Tomorrow strategy.

The investment will significantly contribute to the energy independence of the oil and gas complex in southern Hungary, improve the flexibility of electricity supply and lower the site’s CO2 emissions by 13,000 tons per year, according to the announcement.

MOL Group hired Alteo, in which it holds minority stake

The photovoltaic plant project is for 37.4 MW and the battery energy storage system would have 40 MWh in capacity. Alteo, listed at the Budapest Stock Exchange, is the contractor for the construction of the facility. MOL Group, which holds a minority stake, controls a total of 73.8% of its shares together with two private equity funds.

The company’s full name is Alteo Energy Services. As an aggregator, it owns or operates gas power plants and renewables, combined with energy storage, while also providing software as a service (SaaS).

Storage is essential for smart energy transition

MOL has won support of EUR 20.5 million in total for the energy storage project in Algyő. A EUR 6.7 million grant came via the European Union’s Recovery and Resilience Facility (RRF) and Hungary’s National Recovery and Resilience Plan (NRRP), while the government secured the remainder.

“Our strategic goal is a smart energy transition, for which energy storage is essential, as it ensures the integration and flexible use of sustainable energy systems. Algyő is a symbolic location for us – it is here that six decades of industrial experience meet the technology of the future,” said Managing Director of MOL Exploration and Production Hungary Péter Archibald Schubert.

Solar power capacity in Hungary has topped 8 GW

The solar power plant’s output is equivalent to the annual consumption of 22,500 households in the county, while the BESS can flexibly cover 7,300 households, he added.

MOL Group operates seven solar parks in Hungary and two in Croatia, of 111 MW altogether. Its goal is to reach 200 MW in renewable energy capacity by the end of next year.

Alteo will operate MOL’s other battery energy storage system, in Tiszaújváros

Of note, the company broke ground in March for a 40 MWh battery system at the MOL Petrochemicals site in Tiszaújváros, in northeastern Hungary. It selected Alteo as its operator. The investment is worth EUR 16.3 million, of which EUR 6.7 million is a grant from NRRP.

As for the PV and battery investment in Algyő, the local authority made the 47-hectare site available to the integrated hydrocarbons producer, Hungarian media reported.

At the ceremony, Deputy State Secretary for Energy Transition at the Ministry of Energy Viktor Horváth said that the country’s solar power capacity has surpassed 8 GW. It is ninth in the world in PV capacity per capita.

In other storage news, MET Group inaugurated the largest BESS in Hungary last week at its gas power plant near Budapest.

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June 24, 2025
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Coal power plant Maritsa East 3 plans to build solar plant, 200 MW battery system

Coal-fired power plant ContourGlobal Maritsa East 3, which operates only sporadically to ensure the stability of supply for Bulgaria’s power system, plans to repurpose the grid infrastructure of its units 1 and 2 for solar and battery storage capacities. Units 3 and 4 will remain on standby to generate electricity during peak demand periods in the summer and winter months, but the plant will need state support to cover maintenance and workforce costs.

Maritsa East 3 (Maritsa iztok 3), majority owned by the US-based ContourGlobal, plans to use the existing grid infrastructure, including transformers and switchgear, to speed up the green energy project within the complex, according to Vassil Shtonov, Executive Director of ContourGlobal Bulgaria.

The central element is a 200 MW standalone battery energy storage system (BESS), the largest of its kind in Bulgaria, which would improve the flexibility and stability of the national power system, Shtonov explained in an interview with Capital.bg.

The project involves a 200 MW standalone battery system and a solar power plant

The planned battery system at Maritsa East 3 was among 82 projects selected to receive a total of EUR 587 million in subsidies from Bulgaria’s Ministry of Energy in April this year.

“In parallel, we are considering the development of an additional hybrid solar park with a battery at the same site,” he said. This will allow for faster deployment of new clean energy capacity, while preserving all options for future use of the coal-fired plant and its original infrastructure, Shtonov added.

ContourGlobal plans to build 400MW to 500 MW of renewable energy capacity combined with batteries

ContourGlobal plans to invest hundreds of millions of euros to develop 400 MW to 500 MW of renewable energy capacity combined with storage systems, he said, adding that nearly half of this target is under construction or final approval. The company’s goal is to phase out coal by 2027 and achieve carbon neutrality by 2040, he stressed, recalling that Bulgaria’s targeted coal phaseout date is 2038.

Keeping coal plants on standby requires state support

Bulgaria’s state-owned National Electricity Co. (NEK) holds a minority stake in Maritsa East 3. After the plant’s 15-year power purchase contract with NEK expired in February 2024, it has only been able to operate on the free market for a few months a year. This year, units 3 and 4 were online from January to the end of March to maintain energy security.

Shtonov: Key coal-fired power plants should get a fixed amount from the state

However, to be on standby for system security, the plant needs to keep workers on the payroll even when it is not operating. For this reason, strategically important coal-fired power plants should receive a fixed amount from the state to cover ongoing personnel and maintenance costs, and then be switched on when necessary to protect consumers from sharp increases in electricity prices, as happened last year in July and November, according to Shtonov.

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June 24, 2025
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North Macedonia, Kosovo* planning 400 kV power interconnection

The transmission system operators (TSOs) of North Macedonia and Kosovo* are developing a project for a 400 kV interconnection line between Tetovo and Prizren. The investment would include other grid upgrades and expansion.

Director-General of North Macedonia’s MEPSO Burim Latifi and Acting Chief Executive Officer of Transmission, System and Market Operator (KOSTT) of Kosovo* Shaban Neziri signed a memorandum of cooperation in Skopje. The two transmission system operators intend to jointly upgrade the high-voltage network. The emphasis is on a strategic project for a 400 kV interconnection line from Tetovo to Prizren.

The endeavor aligns with the European Union’s energy transition goals by 2050, North Macedonia’s TSO said. The project is nominated through the planning platform of the European Network of Transmission System Operators for Electricity (ENTSO-E) for increasing transmission capacities.

New interconnection to encourage investments in renewables

North Macedonia and Kosovo* have only one interconnection now, of 220 kV. According to ENTSO-E, Southeastern Europe needs to at least double transmission capacities and, in some cases, increase them even more than that, MEPSO stressed.

On that note, the bilateral project includes additional investments in the transmission network, such as the construction of a 400/110 kV transformer station in Tetovo, in North Macedonia’s northwest, and 400 kV transmission lines from Tetovo to Ohrid and Skopje.

“The 400 kV Tetovo-Prizren transmission line project will not only increase the system’s capacity and reliability but also enable greater electricity exchange, encouraging new investments in renewable energy sources,” Latifi said.

Investment to bolster East-West energy corridor

Regarding the other benefits, the heads of the two TSOs agreed that the project would bolster the transmission infrastructure in the region, strengthen the so-called East-West energy corridor and improve system flexibility.

The new document confirms the joint commitment to creating a modern and reliable energy infrastructure, Neziri stressed. “With this project, we are enhancing energy connectivity in the region and contributing to achieving the energy goals of the Western Balkans,” he added.

Strong interconnections are essential for the integration of the electricity market in the Western Balkans

The project is in the planning and technical preparation phase. The start of construction depends on securing financial resources and coordination with all relevant stakeholders, MEPSO explained.

Strong interconnections are essential for the integration of the electricity systems and markets in the region with the EU, through market coupling. Together with Albania and Greece, North Macedonia and Kosovo* are part of one such regional project, which has been suffering delays.

Market coupling is a prerequisite for the exemption of the power markets in the Western Balkans and the rest of the Energy Community from the EU’s Carbon Border Adjustment Mechanism, or CBAM, under which a CO2 tax is set to start being charged on January 1.

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* This designation is without prejudice to positions onstatus and is in line with UNSCR 1244/99 and the ICJ Opinion on the Kosovo declaration of independence.
June 24, 2025
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Federation of BiH launches grants program for prosumers

The Federation of BiH, one of the two entities constituting Bosnia and Herzegovina, has launched a grants program to co-finance the installation of rooftop solar power plants, expected to cover around 500 households a year and lead to an increase of 4.2 GWh in renewable electricity production.

Operator for Renewable Energy Sources and Efficient Cogeneration – Operator za OIEiEK estimates that the average installed capacity of the solar power plants will be 6 kW, and that the grants will help reduce greenhouse gas emissions by 3,800 tons a year.

The program will be funded from renewable energy surcharges

The program will be funded from renewable energy surcharges paid through electricity bills by all consumers in FBiH. Grants will be approved for two categories of applicants. The first one is vulnerable households whose annual consumption exceeds 3,500 kWh. The second covers those who consume more than 5,500 kWh a year and whose connection power is equal to or less than the requested installed capacity of the solar installation, according to the decision of the Operator za OIEiEK.

The maximum grant amount per applicant is BAM 7,000 (EUR 3,580), or up to 60% of the investment cost for users in the second category.

Damir Miljević: People in extreme energy poverty will get solar power plants for free

Although the budget and the anticipated scope of the program are modest, one positive aspect is that part of it is intended to fully cover the cost of PV installations for people in extreme energy poverty. They will receive a rooftop system free of charge, eliminating, partially but permanently, some of the concerns about financing their energy needs, according to Damir Miljević, a member of the Board of the Center for Sustainable Energy Transition (RESET), a BiH think tank.

Prosumers were introduced in the FBiH legislation two years ago, with the passage of a set of reform energy bills, including the Law on the Use of Renewable Energy Sources and Efficient Cogeneration.

At the national level in Bosnia and Herzegovina, prosumer regulations have not been adopted yet. According to some estimates, the country could cover half of its electricity consumption by installing solar panels on about a million roofs.

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June 24, 2025
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Slovenia preparing hydrogen action plan until 2030

The Slovenian Ministry of the Environment, Climate and Energy has invited bids for preparing a draft action plan to achieve the hydrogen targets from the National Energy and Climate Plan (NECP). The document is intended to guide the development of hydrogen technologies in Slovenia until 2030, with an outlook to 2040.

Hydrogen is expected to help decarbonize sectors such as industrial production, transportation, and energy. The action plan must clearly define strategic goals, measures, and projects for introducing hydrogen, including cross-sectoral integration (power-to-X solutions), according to the public call.

Hydrogen is expected to help Slovenia decarbonize industrial production, transportation, and energy

The drafting of the action plan is partly financed by the European Union as part of the North Adriatic Hydrogen Valley (NAHV) project, a joint effort by partners from Slovenia, Croatia, and Italy, the ministry said. The NAHV is expected to start producing hydrogen by the end of 2026.

The document is co-financed by the EU under the North Adriatic Hydrogen Valley project

The document is intended to provide guidelines for the development of infrastructure, support policies, and incentive measures that would enable the gradual development of the hydrogen ecosystem in Slovenia. It must also define a timeline and provide cost estimates. Its purpose is to define a comprehensive, coordinated, and feasible set of measures, the ministry said.

The action plan must provide a timeline, cost estimates, and a feasible set of measures

The plan should also include an analysis of existing hydrogen strategies in the EU; an overview of existing hydrogen initiatives and projects in Slovenia; recommendations for technical, political, financial, legal, and regulatory feasibility; and an analysis of environmental and socio-economic impacts.

Bids are accepted until July 17, while the deadline for completing the job is 10 months from signing the contract, according to the public call.

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