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Representatives of Western Balkan DSOs take part in Global Outage Management Forum in Berlin

Representatives of distribution system operators (DSOs) from Albania, Kosovo*, and Montenegro, partners in the GIZ project Green Agenda – Decarbonization of the Electricity Sector in the Western Balkans, took an active part in the 10th Annual Global Outage Management Forum for DSOs, held in Berlin. The event brought together DSOs, experts, and innovators to address the pressing challenges of ensuring grid stability while navigating regulatory, technological, and environmental transformations.

The two-day event featured engaging discussions on a wide range of critical topics related to outage management and the future of electricity distribution. One key issue was the integration of electricity generated by prosumers into the low-voltage grid. Participants explored innovative methods for managing outages more efficiently and enhancing the overall resilience of the grid.

The forum also addressed the evolution of electricity distribution networks and their importance in ensuring supply security, especially given the increasing demand and the rise of distributed generation. Another significant topic was the implementation of Advanced Distribution Management Systems (ADMS).

Discussions covered the transition toward automated fault management and the development of digital substations. Additionally, participants examined how environmental factors, such as changes in groundwater levels, can impact the reliability of medium-voltage networks.

Workshop on DSO Roadmaps

The project partners also took part in a half-day workshop focusing on the topic of DSO Roadmaps. The purpose of a DSO Roadmap is to outline the strategic direction and actions required to modernize the distribution network, integrate renewable energy sources, enhance grid reliability, and support the overall energy transition in the Western Balkans. It aims to provide a clear pathway for DSOs to adapt to changing energy landscapes, regulatory requirements, and technological advancements.

Photo: GIZ

“We used the workshop in Berlin with the DSO representatives to introduce State of the Art on DSO-Roadmapping and sound primary results for Albania, Kosovo, and Montenegro, which were mainly based on a pre-assessment of items based on the ETI of the World Economic Forum, which we used as a Strategic Reference Framework”, said Dr. Marcus Merkel, Senior Strategy Manager at EWE AG.

“Furthermore, we introduced a PESTEL-Methodology to jointly identify further items, which we are now transferring together with more than 500 items identified in the reports of the Energy Community, IEA, ACER, DSO Entity (DSO Vision), EDSO for Smart Grids (Technology Radar) and results from our Questionnaire as well as other Best Practices in the final Draft of the DSO Roadmap. We will present preliminary results and an implementation proposal towards the Energy Community in June and further sound the results with DSOs by July 2025,” he added.

Photo: GIZ

Rodon Miraj, Energy Advisor at GIZ, emphasized the vital role of distribution system operators in driving the energy transition at the local level. He noted that the capillary grid managed by DSOs represents the first line of distributed decarbonization efforts, enabling end-consumers to participate through technologies like prosumption and battery storage.

Miraj highlighted the responsibility of DSOs in the Western Balkans for creating the necessary technical and administrative conditions for these innovations to take root quickly.

“GIZ’s Decarbonization Project is supporting all distributors of the region to plan and have a clear roadmap towards established and new goals for 2030 and beyond. DSO roadmaps can be the missing link that connects the high-level Vision, Mission, and Target set by DSOs to the immediate implementation and budgeting efforts,” he said.

He described the Berlin workshop and participation in the Global Forum as a valuable opportunity for Western Balkan DSOs to collaborate on roadmap development and engage directly with leading industry experts.

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Montenegro’s CEDIS to invest EUR 30 million in distribution grid

Montenegrin electricity distribution system operator CEDIS plans to invest EUR 30 million this year or EUR 6 million more than in 2024.

The increase in investments demonstrates greater ambitions year after year and that grid works are becoming more intensive and demanding, according to CEDIS.

The country’s distribution system operator (DSO) said it would increase capacity for the integration of new users, improve voltage conditions, strengthen reliability and security of power supply, and reduce losses.

The investments include projects planned to be started this year as well as ones already in motion, such as the modernization of six 35/10 kV substations.

CEDIS is building two substations

CEDIS pointed to several significant endeavors within the primary grid. The most significant ones are the construction of 35/10 kV substations Tivat 3 and Rijeka Crnojevića, and the modernization of the systems Buljarica-Kufin (110/35 kV) and Podgorica 7 (110/10 kV).

Seven 35/10 kV substations are up for reconstruction – Tuzi, Unač, Ptič, Andrijevica, Velika Plaža 1, Velika Plaža 2 and Čanj. The plan includes procuring new equipment for existing 35 kV transmission lines, worth about EUR 1.4 million.

The company is introducing SCADA and ADMS systems

CEDIS will use a EUR 35 million loan from the European Bank for Reconstruction and Development (EBRD) to roll out SCADA and ADMS systems, and to purchase smart meters.

The company highlighted SCADA and ADMS as a key step towards the modernization of the distribution network and the improvement of reliability, efficiency, and security of the power system.

Investments envisaged by the project Decarbonization of the Energy Sector of Montenegro, financed with a loan from the World Bank, are kicking off this year. Its subproject for increasing the operational efficiency of the power distribution grid comprises the reconstruction and modernization of substations, and improvement in the visibility of the distribution network.

EUR 5 million for energy infrastructure on Jaz-Tivat Boulevard

One of the largest investments is the installation of power infrastructure within the construction of the Jaz-Tivat Boulevard. The investment is estimated at EUR 5 million.

Projects within the secondary distribution grid are the construction of 268 substations of 10/0.4 kV, modernization of 10 kV transmission lines, and reconstruction of existing 10/0.4 kV substations. The planned works are valued at more than EUR 6 million.

CEDIS is continuing with the revitalization of the middle- and low-voltage grid. It earmarked EUR 9 million for this year for the purpose. The project is for the renewal of four 10 kV transmission lines and 52 substations of 10/0.4 kV and replacing 1,500 poles.

The installation of new meters and the relocation of measuring points will also be continued. The plan is to start phase 4 of the advanced metering management (AMM) project. The investment is estimated at EUR 12 million.

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Montenegro’s EPCG, DSO, TSO to establish Consolidated Data Center

The three key companies in the electricity sector of Montenegro – Elektroprivreda Crne Gore (EPCG), distribution system operator (DSO) CEDIS, and transmission system operator (TSO) CGES – have signed a letter of intent to start strategic cooperation on the installation of the Consolidated Data Center (CDC).

The initiative for the construction of the Consolidated Data Center represents a significant step towards the digital transformation of the Montenegrin power system and the establishment of a modern information hub, according to EPCG, CEDIS, and CGES.

Within the partnership, the three companies are jointly invest resources and know-how to create a technologically advanced data management system and digital services. The Consolidated Data Center will be located in the Željezara Nikšić industrial complex.

CDC’s capacity could be used commercially for the needs of other institutions and businesses

Apart from CDC’s primary role, the modernization of the state-owned power companies, its capacity could offer services to other institutions and companies.

The signatories have already initiated the first step – the preparation of a feasibility study that will define the technical and economic parameters of the project. Based on its results, a special agreement will be adopted to specify the next steps.

EPCG CEO Ivan Bulatović said the Consolidated Data Center isn’t just an infrastructure project.

Bulatović: The goal is to create a system set for the challenges of the future

“It is the foundation of digital transformation that will enable more accurate data analysis, greater efficiency in decision making, and a safer power system. Our goal is to create a system set for future challenges. Digitalization is an inevitable step in the modernization of the sector, and CDC is a key segment of that process,” Bulatović stressed.

According to Vladimir Ivanović, CEDIS CEO, the cooperation of key Montenegrin energy companies is significant, as is providing support to other businesses.

Ivanović: CDC to enable better coordination between companies

“The development of the power system doesn’t only mean investments in the grid and capacities, but also in smart solutions enabling greater flexibility and safety in operations,” Ivanović noted.

He underlined the CDC’s role in improving coordination between companies, reduction of operating costs, and improvement of IT infrastructure.

Asanović: A strong step forward in the modernization of the sector

CGES CEO Ivan Asanović stressed the project’s importance for digitalization and the creation of a system that will enable more efficient management of power resources at the level of the entire country.

CDC represents a strong step forward in upgrading the sector and ensures a better connection between all key participants in the power system, according to Asanović.

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Race against time for Greece to avoid a blackout on Easter

Greek authorities are rushing to secure the electricity system against a possible blackout during Easter.

Greece currently produces much more electricity than it needs on certain days due to a high renewables penetration and insufficient energy storage. It should be noted that in 2024 the country became a net power exporter for the first time after two decades. Usually, extra power is no problem, as it is exported and curtailments ensure nominal system operation with no danger of a blackout.

However, this year there will be days when low demand combined with high renewable electricity production creates a problem. At Easter, demand traditionally craters.

Independent Power Transmission Operator (IPTO or Admie) estimates that on Easter Sunday the country’s interconnections would operate near their maximum safety limits. If even a single line goes offline, it would lead to a domino effect and the possible loss of all the connections with neighboring countries. As a result, the frequency will rise beyond safe limits in the Greek system, triggering the desynchronization of power plants and a blackout.

To avoid such a scenario, authorities have imposed adding telemetry systems in recent months to photovoltaic units of over 400 kW connected to the distribution network. Currently, the Hellenic Electricity Distribution Network Operator (HEDNO or DEDDIE) can curtail 1.9 GW of solar power capacity, but another 6 GW is unswitchable.

Telemetry must be enabled by April in small PV units

A deadline was given until February 13 to the owners within the latter category to add telemetry equipment so that HEDNO can curtail their production when needed. However, very few complied and the rest said they are still waiting for the systems to be delivered.

HEDNO estimates that 5,700 plants with capacities of 400 kW to 1 MW must be added to curtailments, as well as 600 plants with more than 1 MW apiece.

Based on the above, owners of solar power units and the two grid operators must add the ability by April to ensure system stability.

Gradual installation of energy storage facilities is expected to help significantly and bring curtailments down.

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Greek renewables sector slams curtailments bill for not including compensation

Power network operators won’t need to compensate renewable energy producers in Greece for curtailments, according to the latest bill of law. It prompted reactions in the renewable energy market.

The bill, submitted for public consultation, received damning remarks from the Hellenic Wind Energy Association (HWEA or ELETAEN) and various other bodies and corporations for the provisions regarding curtailments.

The country’s two operators wouldn’t be obligated to pay compensation. It should be noted that last year curtailments rose by 277% and reached 3.3% of all renewable production in Greece. They are projected to reach new highs in 2025.

The issue primarily plagues larger plants including wind farms, as they have the technical ability to respond to curtailment orders from the Independent Power Transmission Operator (IPTO or Admie). Conversely, smaller photovoltaic facilities connected to the grid of the Hellenic Distribution Network Operator (HEDNO or DEDDIE) have no such telemetering equipment, so they produce freely at all times.

Indeed, Greek authorities aim to make such systems mandatory in smaller renewables plants to be able to curtail them, to maintain system stability, especially during the days of Easter. If an owner fails to make necessary changes, they would be subject to a high penalty, yet to be determined.

Producers point to European law for compensation

HWEA expressed the belief operators should be exempted from compensation only if a proper framework is established that compensates larger producers for curtailments. In practice, it means any revenue collected from the penalties should be used as compensation for other producers.

HWEA: Producer compensation mechanism is necessary

The association added that compensation is obligatory under European law and therefore needs to be included in the regulatory framework.

“The only right way is for the government to conclude the long-awaited framework and introduce a specific producer compensation mechanism,” HWEA pointed out.

Cero Generation Holdings Greece said it is very concerned about proposals for IPTO and HEDNO not to be obliged to provide any compensation.

Curtailment responsibility shifted to aggregators

Another issue concerns the role of renewable energy aggregators, which represent groups of smaller producers in the market. Both HWEA and Elpedison said it is the operators that need to enforce and manage curtailments, and not aggregators, as in the proposed law.

With such measures, aggregators will face increased costs as well as the possibility of having their license recalled if they cannot carry out their new duties, the company pointed out.

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Montenegro’s DSO CEDIS secures funds for grid digitalization

Montenegrin distribution system operator (DSO) CEDIS has secured funds for the installation of an advanced grid management system and procurement of smart meters.

The EUR 40 million package consists of a EUR 35 million loan provided by the European Bank for Reconstruction and Development (EBRD) and a EUR 5 million grant under the European Union’s Western Balkans Investment Framework (WBIF).

The funds are intended for a new supervisory control and data acquisition (SCADA) system and an advanced distribution management system (ADMS), as well as the procurement of new smart meters.

Smart meters help users and utility companies monitor and manage electricity usage more efficiently

The project is expected to reduce technical losses by 10%, decrease grid outages to approximately one sixth of the current level, allow new renewable energy sources to be integrated into the grid and enhance cyber security, according to CEDIS and EBRD.

The SCADA system will be used to monitor and control medium-voltage grid networks in real time. ADMS is an advanced platform that optimizes the management and operation of the electricity distribution system.

Smart meters help users and utility companies monitor and manage electricity usage more efficiently, reducing losses and improving reliability, the update reads.

The loan agreement was signed by the EBRD’s Head of Montenegro Remon Zakaria, CEDIS CEO Vladimir Ivanović, and Ivan Bulatović, CEO of EPCG.

Ivanović: The integration of smart meters will empower consumers to better understand and optimize their energy usage

According to Zakaria, the project represents a transformative step towards the digitalisation of the electricity distribution system in Montenegro.

Citizens will experience a more reliable electricity supply, and CEDIS will achieve substantial reductions in technical losses and gain the advanced capabilities required to swiftly detect and address technical faults, he added.

Vladimir Ivanović said SCADA and ADMS would revolutionize the way the company operates the distribution network. The integration of smart meters will empower consumers to better understand and optimize their energy usage, contributing to greater energy efficiency across the network, he stressed.

Last year Ivanović said CEDIS has reduced grid losses from 12.93% to 10.84% and that it planned to lower them below 10% by the end of December.

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