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EPS plans to build solar power plant on TENT A ash dump

Serbia’s state power utility, Elektroprivreda Srbije (EPS), has invited bids for producing a preliminary feasibility study and conceptual design for a solar power plant on the ash disposal site of the Nikola Tesla A (TENT A) thermal power plant in Obrenovac.

The study should assess the feasibility and viability of the project, as well as the total solar potential of the site. The estimated value of the contract is RSD 14.91 million, and the deadline to submit bids is 23 January 2026.

The document must clearly define the proposed capacity of the planned solar power plant, the grid connection method, and the expected operating regime, according to the public call.

The capacity of the future solar power plant will be determined by the study

The project aims to expand EPS’ renewable energy capacities, reduce dependence on fossil fuels, and remediate the ash disposal site.

In July, EPS connected to the grid its first larger photovoltaic facility, the 10 MW Petka solar power plant. The plant is located in the Kostolac coal mining complex east of Belgrade, next to a 66 MW wind farm, which was put into trial operation in late November.

The design of the planned solar power plant at the TENT A ash disposal site should allow for integration with TENT’s existing safety and SCADA systems, while energy stability should be ensured through backup power sources, including solar panels with battery storage and/or an uninterruptible power supply (UPS) system.

The project should envisage battery energy storage

The photovoltaic panels should have a minimum power of 600 Wp, a minimum efficiency of 24%, and guaranteed production over 30 years of operation, while the efficiency of the inverters must be around 98% by European standards.

The part of the TENT A ash disposal site allocated for the solar power plant is slated for closure, and its usable area is about 67.2 hectares. The exact usable area will be determined following the completion of the study.

The selected bidder will be required to complete the task within six months of receiving all necessary documentation from EPS.

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EPS plans to build solar power plant on TENT A ash dump

Serbia’s state power utility, Elektroprivreda Srbije (EPS), has invited bids for producing a preliminary feasibility study and a conceptual design for a solar power plant on the ash disposal site of the Nikola Tesla A (TENT A) thermal power plant in Obrenovac.

The study should assess the feasibility and viability of the project, as well as the total solar potential of the site. The estimated value of the contract is RSD 14.91 million, and the deadline to submit bids is 23 January 2026.

The document must clearly define the proposed capacity of the planned solar power plant, the grid connection method, and the expected operating regime, according to the public call.

The capacity of the future solar power plant will be determined by the study

The project aims to expand EPS’ renewable energy capacities, reduce dependence on fossil fuels, and remediate the ash disposal site.

In July, EPS connected to the grid its first larger photovoltaic facility, the 10 MW Petka solar power plant. The plant is located in the Kostolac coal mining complex east of Belgrade, next to a 66 MW wind farm, which was put into trial operation in late November.

The design of the planned solar power plant at the TENT A ash disposal site should allow for integration with TENT’s existing safety and SCADA systems, while energy stability should be ensured through backup power sources, including solar panels with battery storage and/or an uninterruptible power supply (UPS) system.

The project should envisage battery energy storage

The photovoltaic panels should have a minimum power of 600 Wp, a minimum efficiency of 24%, and guaranteed production over 30 years of operation, while the efficiency of the inverters must be around 98% by European standards.

The part of the TENT A ash disposal site allocated for the solar power plant is slated for closure, and its usable area is about 67.2 hectares. The exact usable area will be determined following the completion of the study.

The selected bidder will be required to complete the task within six months of receiving all necessary documentation from EPS.

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Serbia’s EPS mulls using heat pumps at its hydropower plants

State-owned power utility Elektroprivreda Srbije intends to commission a study of the potential use of heat pumps at four hydropower plants in southwestern Serbia. The call lasts until February 10.

As technology advances, energy companies are increasingly turning to solutions based on renewable sources as well as combining them with existing systems that also don’t pollute, while emitting little to no greenhouse gases. Serbian state-owned Elektroprivreda Srbije (EPS) is heading in the same direction. It launched a tender for technical documentation – a study on the possibilities of deploying heat pumps in the structures of Limske hidroelektrane. It is a business unit operating four hydropower plants.

The aim is to improve the efficiency of the utilization of energy. Bids are accepted until February 10. Notably, the types of possible heat pumps isn’t determined.

With an estimated budget of RSD 3.8 million (EUR 32.400), the contractor will have 150 days to deliver the service.

Limske hidroelektrane, based in the town of Nova Varoš, has hydropower plants in the Lim river basin in southwestern Serbia. It is part of EPS’s branch Drinsko-limske hidroelektrane.

The contractor must propose a solution and calculate the energy efficiency and climate gains

The call is for a total of 2,450 square meters covered by climatization systems. The management building accounts for 1,300 square meters, and the rest is in the hydroelectric plants: Uvac, Kokin Brod, Bistrica and Potpeć, a machinery workshop and storage room.

EPS said the study needs to include an analysis of the current heat consumption, with an overview of available solutions for the use of alternative or renewable sources of heat or the improvement of existing systems. The goal is to increase energy efficiency and promote the utilization of renewable energy sources, the call reads.

The contractor would suggest a solution and outline the drop in greenhouse gas emissions. The task involves calculating the investment return period and delivering the list of regulations.

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Renewables investors are seeking tailored financing services as they add BESS, adapt to risks

Market conditions have become challenging for renewables in the CEE region, alongside uncertainties in the regulatory sphere, which calls for advanced and tailored financing solutions, according to participants in UniCredit Serbia’s workshop on navigating capital flows in the segment, including mergers and acquisitions (M&A). Investors, UniCredit’s clients, highlighted the growing importance of battery energy storage systems – and especially adding co-located storage to photovoltaics.

The renewable energy market is evolving in Central and Eastern Europe, as large players join the game and developers emerge as producers. With its surge in photovoltaic capacity and the revival in the construction of wind power plants, Romania has become a frontrunner. In neighboring Bulgaria, the first power purchase agreements (PPAs) are indicating a strong perspective, while Serbia might become more relevant soon, investors agreed at an event that UniCredit Bank Serbia organized in Belgrade.

M&A and financing trends in the region were the central topics. The idea was to have an open discussion with industry players active in the region about their investment strategies and the bank support, said the Head of Specialized Lending in UniCredit Serbia Svetlana Cerović, who moderated a panel within the conference.

A stable top line and a legal framework is the key driver for investments, with a particular emphasis on grid connections

Cerović pointed out that volatility has been on the rise for the last couple of years, after a huge wave of investments that followed the Paris Agreement and the European Green Deal. Sound and predictable regulatory framework along with stable revenues is key. To assure market flexibility and grid stability, new investments in western Europe and in the region are supported with the government programs including investments in battery energy storage systems (BESS). Thus, one of the prerequisites for the execution of future projects in local market will be certainty regarding the third auction timeline and availability of the longer term PPAs.

The participants at the workshop on navigating capital flows in renewables said a stable legal framework is the key driver for investments – grid connections especially, and permitting as a whole. On that note, developers will lean on the slowly maturing PPA market, though support from banks is necessary in the equation. Battery energy storage systems are a game changer, particularly colocated with solar parks for the optimization of the project returns.

UniCredit is strongest player in renewables financing in Serbia

UniCredit has a wide set of tailor-made project finance loans as well as a full range of services from advisory to various financing solutions, Head of Project and Structured Finance in Serbia Jelena Nestorović said.

The Italy-based bank has financed a string of major wind power and photovoltaic projects in the region, including facilities with colocated BESS, like Sunterra RE’s Galabovo in Bulgaria.

As for Serbia, it is the strongest player in the renewable energy segment. UniCredit financed six wind parks in the country, of 430 MW in total, and of which three as the sole lender. Notably, Čibuk 1 and 2 are the largest in Serbia.

UniCredit Bank Serbia is financing the country’s biggest wind power plants – Čibuk 1 and 2

Some of the participants and winners at the first two domestic auctions for contracts for difference (CfDs) are among the bank’s clients as well. Nestorović stressed that Bank is financing in total 30MW of smaller scale solar power plants .

She pointed to one of the largest industrial rooftop solar power plants in the region. UniCredit provided EUR 3.1 million facility and acts as a hedging and account bank for CWP Europe and Resalta’s project company. It built a PV system of 6 MW on a rooftop of Henkel Serbia facility in Kruševac, under an ESCO (energy service company) model.

Since 2019, the bank has participated in the financing of first waste-to-energy cogeneration plant,  located just outside of Belgrade. UniCredit is financing energy efficiency projects in the country, too.

Jelena Nestorovic UniCredit Renewables investors tailored financing services BESS adapt risks
Photo: UniCredit’s Jelena Nestorović presenting

Priority in Europe shifted from energy transition to energy security

Maria Vastola, Managing Director of UniCredit’s Energy Advisory Team covering Power & Utilities across the Group’s core countries, said valuations for renewable energy stocks on public markets are strongly down compared to 2021-2022 period and below the 3Y historical average. Independent power producers (IPPs) are factoring in a great uncertainty related to the permitting process, the regulatory framework in certain countries and the macroeconomic environment, she explained.

The bottom line is the shift in the European paradigm from the energy transition to energy security, due to geopolitical tensions, Vastola underscored. On the other hand, M&A still has good valuations, she said at the panel discussion.

Investors are focusing on operational quality, meaning high-quality assets, returns and value creation, as opposed to growing at any cost, Vastola added.

“There are more investors ready to put capital in projects and in the region. Private capital flow is a good bridge and a complementary tool for banks’ balance sheets,” she asserted and placed an emphasis on large corporations, private equity and M&A.

Scale creates efficiency, and efficiency and flexibility create value in a challenging market, Vastola stressed, highlighting investments in hybrid power plants that include battery storage. Over the past few years, corporates, traders and utilities are flocking into the renewables realm in “a big shift from big oil to big energy,” she said.

Actis to invest in infrastructure projects across region

Vice President for Energy Charles Lachapelle from Actis agreed with the other panelists about the significance of hybrid power plants and underscored that the sustainable infrastructure investment firm is mostly doing very large projects as they are much more competitive.

“Definitely, for solar, I think having a BESS is a must,” he said and added that “it goes without saying at this point.” As for batteries with wind parks, they enable flexibility for offtake, Lachapelle noted.

Actis is a growth market investor in the infrastructure and energy space, best known in the region for Rezolv Energy. In Romania, the company obtained a financing package for the first phase of its giant Vifor wind farm via PPAs with companies in the commercial and industrial (C&I) sector. The second part was secured thanks to the CfD from a renewable energy auction.

The next chapter for Actis could involve more than a billion euros

Among other investments in Romania, Rezolv has the Dama Solar project for 1.2 GW in peak capacity. It would currently be one of the biggest in Europe. The company is also active in Bulgaria.

Actis is looking at a pipeline of projects across the region, including in Serbia, Lachapelle revealed. Asked about the next auction that the country is planning, he said a wind power project in the 200 MW range would be suitable.

Lachapelle specified that the next chapter may involve over EUR 1 billion and that Actis would require support in financing.

On the subject of power purchase agreements, he said the optimal tenure is longer than ten years, with more than 70% of output contracted. “However, we’ve done cross-border PPAs. We’ve looked at solutions, in the past, combining wind, solar and BESS. We can be creative on that front,” Lachapelle stated.

Regulatory stability is essential for investor-friendly countries

While the PPAs of 70% and at least 10 years are necessary for non-EU countries, banks in the EU are more risk-hungry, according to CWP Europe’s General Counsel Jovana Rubežić.

One of the most important factors is how investor-friendly a country is, she added. “When I say investor-friendly, I mean the regulatory framework… The next thing we look at is whether we can connect our project and can the power markets absorb the power,” Rubežić said.

The rules have basically stayed the same in all of CWP Europe’s key markets, except with respect to grid connection, as transmission system operators are becoming stricter, she underscored. The company is transitioning from project development to the IPP sector, Rubežić said. She pointed to the need for support in regulatory matters, especially in sleeved PPAs, both from the government and government-owned utilities such as Elektroprivreda Srbije (EPS) in Serbia.

Structured portfolio transactions are facilitating growth for companies with multiple projects

Bankers generally seem to prefer co-located batteries to standalone ones, UniCredit’s Head of Infrastructure and Export Financing Lazar Nikolić said.

The main reason is the more diversified revenue stack, as a combination of BESS and a renewable electricity plant is effectively a single asset. With global battery storage capacity on a steep growth trajectory, banks and investors will need to look for bankable solutions to enable that.

Firstcomers in the standalone battery segment may have an extremely short payoff period ahead, but the bank needs a revenue stack

Nikolić stressed that developers need advanced capital solutions such as structured portfolio transactions, saying that they pave the way for renewables platforms to grow. Namely, firstcomers in the standalone battery segment may have an extremely short payoff period ahead, however a solid revenue stack remains key for the bank to take on risk. Countries with strong state support schemes will enable standalone BESS faster, he added.

In structured portfolio financing, the client company has different BESS, power plants and projects grouped.

“The assets can be different in terms of technology, they can be different in terms of location, they can be different in terms of offtake, in terms of also the cycle of the assets. We pack them together, bundle assets and structure debt solution on top of them, significantly enhancing portfolio diversification,” Nikolić said.

Lazar Nikolic UniCredit
Photo: UniCredit’s Lazar Nikolić presenting structured portfolio financing options

Battery storage is natural hedge for green power production

Enery, headquartered in Austria, decided at one point to add battery storage across its power plants as well as both mature and greenfield projects in Romania, Vice President for Financing Sebastian Staicu said. BESS is “a natural hedge” and it has become very cheap, he noted.

UniCredit acted as the lead bank for the company’s 230 MW portfolio of wind, photovoltaics and battery storage in the country. “That’s a smart structure where, instead of having to negotiate financing for each project, you have this wholesale facility and you just bring in new projects, which contribute to the diversification element,” Staicu said.

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Serbia’s EPS starts trial operation of its first wind park Kostolac

Serbia’s state-owned power utility Elektroprivreda Srbije put the 66 MW Kostolac wind farm into trial operation.

The construction of Kostolac is complete, and Elektroprivreda Srbije’s (EPS) first wind farm has generated its first megawatt-hours, EPS announced.

Upon receiving approval for connecting to the transmission system, the substation was energized and the blades of wind turbine 1 began to spin. It marked the start of the trial operation of the new generation capacity, the company said, and added that the kickoff of the remaining wind turbines is underway.

EPS’s first wind power plant, with 20 generators, is located at sites called Drmno, Petka, Ćirikovac and Klenovnik, at an area of closed open-pit mines of its subsidiary Termoelektrane i kopovi Kostolac (TE-KO Kostolac). It operates coal-fired power plants and open-pit coal mines.

Živković: It is a historic moment for EPS

Closed coal mines are ideal locations for installing wind farms and solar power plants, due to existing infrastructure. The concept has become widespread in Balkan countries.

“This is a historic moment for EPS. In addition to energy from water, coal, and the sun, now the first wind farm is online. This is a big step toward increasing the share of renewable energy and achieving sustainable energy development for EPS and the entire Serbian energy sector,” CEO Dušan Živković underlined.

He pointed out that the wind farm is just the beginning of future intensive development of new green capacities. It is very significant that it was built on the site of an old mining landfill and that the space has been given a completely new, sustainable purpose, he added.

The wind farm is expected to produce 187 million kWh annually

serbia eps wind farm Kostolac trial operation coal mine
Photo: EPS/Zoran Gavrilović

Živković recalled that the construction of the wind farm was a major challenge, but also a real opportunity for experienced engineers and young, new professionals at EPS to gain new knowledge and experience for future projects.

The planned annual production of the wind farm is 187 million kWh, which is enough to supply about 30,000 households with green electricity, according to EPS.

The project is financed by a EUR 110 million loan from Germany’s KfW Development Bank and a EUR 30 million grant from the European Union via the Western Balkans Investment Framework (WBIF), while the company provided a part of the needed funds, EPS said.

Serbia’s Minister of Mining and Energy, Dubravka Đedović Handanović said in January 2024, at the signing of an agreement with the EU for the EUR 30 million grant, that it has completed the financing of the project.

According to WBIF’s update from December 2024, the project was valued at EUR 145.1 million. It comprised EUR 81.8 million from a KfW loan and EUR 31 from WBIF in the form of a grant, while EPS provided EUR 32.3 million.

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Serbia’s EPS inks EUR 109.7 million deal for Vlasina HPPs revamp

Serbia’s power utility Elektroprivreda Srbije (EPS) signed a contract for the modernization of its Vlasina hydropower plants with Energotehnika – Južna Bačka.

The contract for the reconstruction and modernization of the Vlasina (Vlasinske) hydropower plants (HPPs), with a capacity of 129 MW, was signed by Dušan Živković (sitting first from right), Chief Executive Officer of Elektroprivreda Srbije (EPS), and representatives of Energotehnika Južna Bačka – Marko Iskrin (second from left), Executive Director for Technical Affairs, and Nikola Labus (first from left), Deputy Executive Director for Financial Affairs.

Of note, in mid-July, Hungarian state-owned energy company MVM became the majority owner of Energotehnika – Južna Bačka.

The total value of the project is estimated at EUR 109.7 million. It envisages the reconstruction and modernization of generation units, auxiliary systems, and hydromechanical equipment. The main equipment suppliers are Andritz Hydro and Gamesa Electric, EPS said.

Financing has been secured through a EUR 67 million loan from the European Bank for Reconstruction and Development (EBRD), a EUR 15.4 million grant from the European Union via the Western Balkans Investment Framework (WBIF), and EPS’s own funds in the amount of EUR 27.2 million.

The capacity of the Vlasina HPPs would be increased by 8 MW

“On the day when the Vlasina HPPs celebrate their 70th anniversary, we officially start the project of their modernization. The result would be an increase in the installed capacity by 8 MW and reliable operation for the next three to four decades,” Dušan Živković underlined.

He recalled that the Vlasina HPPs are unique plants in the EPS portfolio. They operate in a cascade system, generating electricity four times one after the other and representing a significant source of peak energy.

The Vlasina HPPs began operating in 1955

According to Milan Aleksić (second from left in back row), advisor to the Minister of Mining and Energy for capital projects, investments are key to securing an electricity supply amid growing demand and the need to rely more on renewable energy sources.

Vlasina started its operations on November 6, 1955, with the commissioning of the first unit at the Vrla 1 hydropower plant.

The system consists of the Vlasina lake – reservoir, four cascade run-of-river hydropower plants, and the Lisina pumping station with the Lisina reservoir. Since the start of operation, the plants have produced more than 17 million GWh.

The signing was also attended by Francesco Corbo (first from left in back row), Regional Head of Energy for the Western Balkans and Croatia at the European Bank for Reconstruction and Development (EBRD).

Photo: EPS/Nenad Kostić
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Serbia’s power utility EPS adopts Decarbonization Action Plan

Power utility Elektroprivreda Srbije has developed its Decarbonization Action Plan, said Executive Director for Investments and Development Aleksandar Jakovljević.

The Decarbonization Action Plan of Elektroprivreda Srbije (EPS) involves the gradual reduction of electricity production from coal, the construction of pumped storage hydropower plants, and over 20 GW of new capacity from renewable energy sources, Aleksandar Jakovljević explained.

For EPS, the energy transition is not only a challenge but also a great opportunity to improve the company in the process of Serbia’s industrial and technological transformation, in Jakovljević’s view.

The energy transition isn’t just a matter of adaptation and transformation of one company, but the entire energy sector, the economy, as well as society, he said at the Power Plants 2025 conference, organized by the Society of Thermal Engineers of Serbia.

Jakovljević: It is important to analyze the experiences of other countries that started the energy transition before us

Jakovljević noted that it is important to analyze the experiences of countries that started the energy transition before Serbia, to apply proven solutions and avoid mistakes. However, in his words, it is also necessary to consider the characteristics of Serbia’s power sector.

Photo: EPS/Danilo Mijatović

​The decarbonization of EPS is already underway with various projects, he asserted and added that by the end of the year, the company’s green portfolio would increase by 76 MW.

The 10 MW Petka solar power plant has been completed, and soon the trial operation of EPS’s first wind farm – Kostolac, with a capacity of 66 MW, will kick off.

Jakovljević recalled that the company is preparing to build pumped storage hydropower plant Bistrica, with a capacity of 650 MW, saying it is a key facility for the integration of renewable sources and for energy stability. He added it is also developing photovoltaic projects, including one for 1 GW and a 200 MW battery energy storage system (BESS).

From 2026, every ton of CO2 produced in EPS’s plants will be priced

EPS is developing renewable energy projects at locations near mines and coal power plants, where existing infrastructure can be utilized, and connections to transmission and distribution networks are available, Jakovljević explained.

He noted that Europe has set the climate neutrality goal for 2050, and that Serbia has committed to reducing carbon dioxide emissions by at least 33% and to produce 45% of its electricity from renewable sources by 2030.

From 2026, every ton of CO2 produced in EPS plants will be priced, exposing coal production to additional challenges, Jakovljević stressed.

However, in his words, EPS’s goal remains clear – reliable and sustainable energy for Serbia and a profitable EPS as a secure support for consumers, and energy independence in the future.

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EPS to help SEEPEX strengthen Serbia’s intraday power market

Serbia’s power exchange, SEEPEX, has reached an agreement with state-owned utility Elektroprivreda Srbije to work together on strengthening the intraday electricity market.

SEEPEX is proud to announce the signing of a strategic agreement with Elektroprivreda Srbije (EPS), Serbia’s largest power utility company, aimed specifically at securing its support for the organized intraday continuous (IDC) electricity market, the power exchange said.

SEEPEX is part of ADEX, which was established in 2022 through a corporate merger between Slovenian energy exchange BSP SouthPool and its Serbian counterpart. In December 2024, ADEX Group completed a merger with the Hungarian Power Exchange (HUPX).

The agreement between SEEPEX and EPS marks an important step forward in strengthening SEEPEX’s organized IDC electricity market, which will also help improve the integration of renewable energy sources, according to the update.

EPS will actively support and participate in the SEEPEX IDC market

Through this partnership, EPS will actively support and participate in the SEEPEX IDC market, enhancing its liquidity and encouraging engagement from all 32 IDC members.

“We believe this collaboration will position the SEEPEX IDC market as a trusted and dynamic platform for electricity trading across the region and beyond,” SEEPEX stressed.

SEEPEX launched the intraday market in July 2023

The contract aims to secure daily offers from EPS to encourage other participants to access the market and start trading, Balkan Green Energy News has learned.

In October 2023, SEEPEX signed a market-maker agreement with EPS for the intraday continuous market.

SEEPEX launched the intraday market in July 2023, with 16 out of 20 registered participants active on the first trading day. The participants came from Serbia, neighboring countries, and the European Union. The SEEPEX intraday market now has 32 participants.

With the launch of the IDC market, SEEPEX became the first organized market in the region to fully implement all aspects of an organized market, according to company’s CEO Miloš Mladenović.

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Serbia’s hydropower output drops to all-time low amid drought

Electricity production at state-owned power utility Elektroprivreda Srbije’s (EPS) hydropower plants is set to hit a historic low this year due to unfavorable hydrological conditions, caused by exceptionally low precipitation in the Drina and Danube river basins over the past 18 months.

The year-end figure will depend on whether and how well the hydrological situation improves in the coming months, EPS said. However, it is already clear that production will be about 25% lower than in 2024 and as much as 40% lower than in 2023, when EPS’ hydropower capacities generated 12.66 terawatt-hours (TWh), according to the statement.

The hydropower plants’ output will be 25% lower than last year

The projected hydropower output for this year is around 8 TWh, less than the all-time low of 8.3 TWh, recorded 36 years ago, EPS added. Since the beginning of 2025, hydropower capacities have generated about 6.5 TWh of electricity.

The average annual production at hydropower plants in the 2010-2024 period was 10.6 TWh, accounting for about 31% of EPS’s total. The total installed hydropower capacity is about 3 GW, according to the state power utility’s website.

Water levels in the Drina and Danube, where EPS’s largest hydropower plants are located, are low due to weak precipitation – both snow and rain – in Germany, Austria, Slovenia, Bosnia and Herzegovina, and Montenegro. At the same time, occasional rainy periods in Serbia this year, as well as recent rainfall, have not significantly affected water inflow to domestic hydropower plants.

The situation has not improved despite occasional rainfall and upgrades to hydropower plants

The revitalizations at the Đerdap 1, Bajina Bašta, and Zvornik hydropower plants have not helped either, even though the reconstructed units are now operating at exceptionally high efficiency, “turning every drop of water into energy.”

EPS also explained that output always depends on river inflows and that they have been far below average on both the Drina and the Danube throughout the year, so much so that there have even been periods when the Danube was not navigable.

On the other hand, the utility claims it is carefully and systematically managing water reserves in reservoirs to preserve them for the upcoming winter season.

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Serbia’s EPS plans to build 500 MW of wind farms with strategic partner

State-owned power utility Elektroprivreda Srbije (EPS) and the Government of Serbia plan to develop a 500 MW wind farm project with a strategic partner, according to Aleksandar Latinović, Head of Ancillary Services at EPS. He also noted that a 1,000 MW solar power project is expected to be online by 2029.

The Energy Infrastructure Development Plan and Energy Efficiency Measures for the period through 2028 envisage the construction of wind farms with a capacity of up to 500 MW.

The project could be similar to the 1,000 MW solar power project with 200 MW battery energy storage systems (BESS) that Serbia is implementing with strategic partners Hyundai Engineering and UGT Renewables (UGTR).

During the presentation of EPS’s development projects at the Korea-Serbia Strategic Energy Development Forum, held in Belgrade, Aleksandar Latinović recalled that the recently built Kostolac B3 power plant, as well as the pumped storage hydropower plant Bistrica, will provide energy to balance the system.

Tenders for two solar power plants are expected next year

Increasing the balancing reserve, in his words, is crucial for integrating new renewable energy sources into the power system. He particularly highlighted the Bistrica project, noting that it will have the same energy storage capacity as all currently existing BESSs in Europe. According to Latinović, the plant is expected to be operational by 2031 or 2032.

Latinović also recalled that EPS recently inaugurated Petka, its first solar power plant on a coal tailings dump. Though a small project, it is significant because EPS owns several thousand hectares of similar tailings and ash dumps.

The solar power plants Kolubara A (78 MW) and Morava (42 MW) are in the development phase, with tenders expected to be announced next year. Meanwhile, the Klenovnik project (110 MW) is undergoing a review of its preliminary feasibility study.

The 1 GW solar project is expected to be connected to the grid by 2029

Regarding wind energy, the 66 MW Kostolac wind farm is scheduled to begin trial operations next month.

For other wind farm projects, EPS and the Serbian government plan a 500 MW project with a strategic partner, he noted, stressing that EPS is willing to acquire already developed, construction-ready projects.

Latinović recalled that the preparation of a spatial plan for the 1 GW solar power project is underway. Strategic partners have already begun preparing investment and technical documentation, and a grid connection agreement with transmission system operator Elektromreža Srbije (EMS) has been signed.

A shortage of balancing energy could be an issue

According to the project timeline, this project will be operational and connected to the grid within four years, Latinović noted.

He stressed that integrating new renewable energy sources into the power system could lead to a shortage of balancing reserves. It is also possible, in his words, that there will be an excess of electricity when a significant amount of renewable energy is produced.

For this reason, EPS has initiated a study to analyze the use of hydrogen and heat storage.

The main focus of this study will be optimizing surplus electricity from intermittent renewable energy sources, increasing the system’s balancing reserve, replacing fuel oil in coal power plants with hydrogen-based fuel, and substituting gas and coal in heat production, Latinović explained.