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Bosnia and Herzegovina could set up power exchange in second half of 2026

Bosnia and Herzegovina is not expected to set up a power exchange before the second half of next year, according to economist Vjekoslav Domljan.

In April, after about ten years of discussions, Bosnia and Herzegovina (BiH) finally finished drafting a bill on the electricity regulator, transmission, and power exchange. The regulation is a prerequisite for the country – the last in the Western Balkans – to establish a power exchange, but that does not mean that it will happen soon.

The Council of Ministers of BiH adopted the bill in July. However, the regulation has not yet reached the BiH parliament, economist and university professor Vjekoslav Domljan has told Dnevni avaz.

A power exchange is important for managing electricity surpluses and shortages

It is not certain the law will be passed by the end of the year, he said, adding that, at best, Bosnia and Herzegovina could set up a power exchange in the second half of next year.

He recalled that Croatia’s power exchange, CROPEX, was established in 2014, and Serbia’s SEEPEX in 2016, while Albania, Montenegro, Kosovo*, and North Macedonia followed suit two years ago. A power exchange, he explained, plays a key role in managing electricity surpluses and shortages and, based on supply and demand, in setting electricity prices.

Once an electricity exporter, BiH is becoming an importer

Domljan is convinced that Bosnia and Herzegovina will need foreign assistance to establish a power exchange, as was the case with setting up the Sarajevo exchange, SASE.

In his opinion, citizens will not benefit directly from the power exchange, but they could benefit indirectly. However, he stressed that this will only be possible if citizens are enabled to become prosumers and aggregators are allowed to pool their generation surpluses.

However, there are no prosumers in BiH – or rather, they exist in one political entity, the Republic of Srpska, but not in the other, the Federation of BiH, according to Domljan.

He pointed out that misguided policies are turning BiH from an electricity exporter into an importer. In the first six months of 2025, he added, the country imported four times as much electricity as it did in the same period of 2024.

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Bulgaria’s IBEX launches guarantees of origin market

Four participants registered last month at the Independent Bulgarian Energy Exchange’s guarantees of origin platform, creating a national market. Separately, IBEX is preparing to roll out a 15-minute market time unit in the Single Day-Ahead Coupling on June 11 with other European nominated electricity market operators.

The Independent Bulgarian Energy Exchange (IBEX) said it launched a market for guarantees of origin (GOs) of electricity with the Sustainable Energy Development Agency (SEDA or, in Bulgarian, AUER). It is part of the efforts to develop a liberalized energy market and promote renewable energy, it added.

IBEX is Bulgaria’s nominated electricity market operator or NEMO. The country’s legal framework envisages issuing GOs monthly, quarterly and semianually.

After the launch of registration on March 31, four companies joined last month: Aurubis Bulgaria, Armaco Energy, Energo-Pro Energy Services and KER Toki Power, the announcement reads.

No timeline for kickoff yet

IBEX, solely owned by the Bulgarian Stock Exchange (BSE), reiterated that its new platform provides for trading with clear rules, guaranteed payments and price transparency. Notably, there is no timeline for the kickoff.

The preparations for the rollout of a GO market lasted several years. The certificates are issued by renewable energy producers. Consumers buy them to prove their progress in decarbonization.

One GO covers 1 MWh of electricity production or consumption. When SEDA achieves integration with the European guarantees of origin system, the participants in the Bulgarian platform will be able to trade abroad as well. Neighboring Greece introduced GOs last June.

IBEX, founded in 2014, operates day-ahead and intraday markets and a mechanism for bilateral contracts.

Europe transitioning to 15-minute products in day-ahead electricity market

In other recent news, the Bulgarian NEMO co-signed a statement with its counterparts across Europe, affirming the commitment to transition to a 15-minute market time unit (MTU) within the Single Day-Ahead Coupling (SDAC) project on June 11.

The group includes Hellenic Energy Exchange – HEnEx (EnExGroup), Energy Exchange Austria (EXAA), Nord Pool, Croatian Power Exchange (CROPEX) and the Romanian Commodities Exchange (BRM).

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Power exchanges to test cross-border day-ahead trading in 15-minute intervals

Nominated electricity market operators in Europe are starting joint member testing on April 7 for cutting the cross-zonal day-ahead power trading interval to 15 minutes. The switch is expected to improve the integration of renewable energy sources.

The European wholesale electricity market is preparing to switch its market time unit (MTU) from 60 to 15 minutes within the Single Day-Ahead Coupling (SDAC) mechanism. The move is significant in competition terms as well as for liquidity and the optimization of power production resources. The Market Coupling Steering Committee, MCSC, said joint member testing is kicking off on April 7 with a plan to complete it on May 15.

It scheduled the go-live for 15-minute products for June 11, for delivery on June 12.

“Testing will allow us to fine-tune processes, validate key scenarios and ensure everything is in place for a smooth launch. Our teams are committed to rigorous testing to guarantee the system’s efficiency and reliability from day one. TSOs will provide production-like capacities,” the body added.

Intermittent renewables require shorter market time units

The Single Intraday Coupling (SIDC) and SDAC projects merged and formed MCSC three years ago. It consists of exchanges, formally called nominated electricity market operators or NEMOs, and transmission system operators (TSOs).

SDAC allocates scarce cross-border transmission capacity by coupling wholesale electricity markets from different regions through a common algorithm. It simultaneously takes into account cross-border transmission constraints. The aim is to create a single pan-European cross-zonal day-ahead electricity market.

The market is experiencing a surge in intermittent sources – wind and solar energy, completely exposed to unexpected weather changes. The 15-minute MTU could eventually be cut to five minutes or even less.

“This new development will refine market operations by enhancing precision, improving the integration of renewable energy sources, and increasing overall efficiency and flexibility. By enabling better adaptation to fluctuations in energy supply and demand, it will support more accurate pricing and scheduling, delivering significant benefits to market participants,” the announcement reads.

NEMOs, TSOs to monitor as exchange members test new system

NEMOs and TSOs are responsible for monitoring as market participants test the shorter interval. The two sides will collaborate to further enhance process stability, MCSC said.

The tests include full decoupling with a shadow auction and the simulations of bidding errors and a lack of liquidity. The switch implies checking functional and simulation integration, among other elements.

JAO, the single allocation platform (SAP) for all the TSOs for cross-border transmission capacity, said it would conduct shadow auctions on April 7, 8 and 9.

As for power exchanges region that Balkan Green Energy News covers, the Romanian Gas and Electricity Market Operator (OPCOM), Independent Bulgarian Electricity Exchange (IBEX), Croatian Power Exchange (CROPEX) and Greece’s Hellenic Energy Exchange (EnEx or HEnEx) updated their members on joint testing ahead.

Of note, Greece and Bulgaria recently achieved another step in power market integration. Both connected to the Platform for the International Coordination of Automated Frequency Restoration and Stable System Operation (PICASSO). It enables them to trade balancing energy.

The Western Balkans aren’t coupled yet with the single European electricity market.