The ownership structure of Crnogorski elektroprenosni sistem, Montenegro’s electricity transmission operator, says more about the country’s regional importance than the size of its domestic power market. The State of Montenegro holds 55.38 per cent, retaining formal control, but the two largest minority shareholders are not financial funds or private utilities. They are Terna, Italy’s national transmission system operator, with 22.09 per cent, and Elektromreža Srbije, Serbia’s state-owned transmission operator, with 15 per cent.
Together, the Italian and Serbian strategic shareholders control 37.09 per cent of CGES. Neither can direct the company independently, and even acting together they cannot defeat Montenegro’s ordinary majority. Yet their stakes carry a value that extends well beyond dividends or the quoted price of CGES shares on the Montenegro Stock Exchange. They provide Italy and Serbia with long-term institutional influence over the electricity corridor connecting the central Balkans with the Adriatic and, through the submarine cable between Montenegro and Italy, one of the European Union’s largest power markets.
For Italy, CGES is the land-side infrastructure supporting its electrical bridge into Southeast Europe. For Serbia, it is the gateway through which the Serbian transmission system can reach that bridge. Montenegro sits between the two, controlling the company but relying on both strategic shareholders to turn geography into a durable energy-market asset.
The structure emerged from the regional reorganisation of electricity networks after Montenegro separated its transmission business from Elektroprivreda Crne Gore. Italy’s participation was anchored in the development of the undersea interconnector between Lastva near Tivat and Villanova near Pescara, a project conceived as a strategic connection between Italy and the Western Balkans. Serbia’s EMS entered the shareholder base later, initially acquiring around 10 per cent and increasing its holding to 15 per cent in 2021.
These were not conventional equity investments. Terna did not buy CGES shares primarily because it expected Montenegro’s regulated transmission profits to outperform alternative investments. EMS did not enter because CGES offered an unusually attractive dividend yield. Both acquired strategic positions to protect larger national infrastructure and electricity-market interests.
Terna’s stake begins with the economics of the submarine cable. The interconnector provides a physical route between Montenegro and Italy, but the cable alone does not create a functioning regional corridor. Electricity must first reach Montenegro through adequate cross-border connections and then move across a domestic transmission system capable of carrying large transit flows toward the coast. The value of Terna’s investment therefore depends on CGES maintaining and expanding substations, internal 400 kV lines, system-control infrastructure and connections with Serbia, Bosnia and Herzegovina and Albania.
The Lastva–Pljevlja 400 kV transmission corridor is central to this architecture. It links the coastal landing area of the submarine cable with northern Montenegro and the wider regional network. Its economic purpose reaches beyond supplying Montenegrin consumers. It allows the country to act as a collection and transit platform for electricity generated elsewhere in Southeast Europe.
Terna’s 22.09 per cent position gives the Italian operator a durable place inside the company responsible for that land-side system. It provides governance visibility over investment plans, network-development priorities, technical performance and the operational reliability of infrastructure supporting the interconnector. It also reduces the risk that changes in the Montenegrin political cycle could leave the cable commercially isolated from the regional grid on which its utilisation depends.
Italy’s interest is partly about import diversification. The Italian electricity system has historically depended on imports through its northern borders and on domestic gas-fired generation to meet marginal demand. An Adriatic interconnector opens another supply direction, with access to the different generation mix of the Western Balkans. That portfolio includes Montenegrin, Bosnian, Serbian and Albanian hydropower, Serbian thermal generation and a growing pipeline of wind and solar projects across the region.
The value of this diversity changes from hour to hour. During wet periods, Balkan hydropower can offer competitively priced electricity to Italy. During periods of strong wind or solar production, surpluses can move toward the higher-priced Italian market. When Southeast Europe is short of generation, the direction can reverse, allowing Italian and wider European electricity to enter Montenegro and the neighbouring systems.
Terna is a regulated transmission operator rather than an electricity trader. It does not receive the spread between Montenegrin and Italian wholesale prices in the way a merchant generator or trading company might. Its economic exposure is instead connected to the regulated value and utilisation of its infrastructure, the allocation of cross-border capacity, congestion-management mechanisms and the long-term role of the link within the European transmission system.
Persistent price differences can make interconnection capacity commercially valuable, but they also signal a need for more network investment. Terna’s strategic objective is therefore not simply to preserve congestion. It is to increase secure transfer capacity, reinforce the role of the Adriatic route and integrate the corridor into the wider European market.
The minority shareholding also places Italy inside Montenegro’s energy transition. Montenegro has a relatively small electricity system, but its potential pipeline of wind, solar and hydropower projects is large in relation to domestic consumption. New generation cannot be financed solely on the expectation of sales to Montenegrin consumers. Developers require credible export routes, liquid markets and confidence that the grid will be able to accommodate their output.
Terna benefits when Montenegro and its neighbours connect additional bankable generation because this expands the pool of electricity available to use the interconnector. That gives the Italian shareholder an interest in CGES accelerating grid connections, strengthening network capacity and applying transparent curtailment and capacity-allocation rules.
Wind and solar affect this interest differently. Wind generation in Montenegro’s elevated northern and coastal areas can provide relatively high capacity factors and may produce during hours when regional solar output is lower. Solar adds substantial midday supply but also increases the risk of simultaneous surpluses and negative prices across Southeast Europe. Terna’s position favours a network capable of managing both patterns, supported by hydropower flexibility, storage, balancing platforms and more sophisticated cross-border scheduling.
Serbia’s 15 per cent stake follows the opposite end of the corridor. EMS controls the largest directly connected transmission system north of Montenegro and has an interest in ensuring that Serbia is not merely an external user of a Montenegrin–Italian infrastructure arrangement. Through its shareholding, it has an institutional position in the company governing Serbia’s most direct route toward the Adriatic interconnector.
Serbia’s electricity system is much larger than Montenegro’s. It combines lignite-fired generation, major hydropower plants, growing wind capacity and an expanding solar and battery-storage pipeline. Its market position can alternate sharply between exporter and importer depending on hydrology, coal availability, power-plant outages, temperature and renewable output.
Access to Montenegro expands Serbia’s options in both directions. During periods of surplus production, the corridor can provide another route toward Italy and the southern Balkan markets. During domestic shortages, it can support imports from Montenegro, Albania, Bosnia and Herzegovina or, through the submarine link, Italy and the wider European system.
This optionality becomes more valuable as Serbia adds intermittent renewable generation. Large volumes of wind and solar will produce periods when domestic supply exceeds immediate demand, particularly during low-load hours. Without adequate cross-border capacity, those surpluses can depress Serbian wholesale prices, increase curtailment and weaken the economics of new projects. Stronger transmission toward Montenegro gives Serbian generators and traders access to another export direction.
For wind projects, the corridor can reduce the concentration risk created when several Serbian wind farms produce simultaneously. For solar, it offers an outlet during midday surpluses, although the value depends on whether Italy remains priced above Southeast Europe during the same hours. The expansion of Italian solar generation means that the old assumption of consistently higher Italian daytime prices cannot be treated as permanent. Flexibility, batteries, hydro coordination and intraday trading are becoming as important as gross interconnection capacity.
EMS’s interest also extends to regional investment planning. A new transmission line constructed in Montenegro cannot maximise its value when the Serbian side of the border remains constrained, just as an EMS reinforcement cannot deliver additional cross-border capacity without complementary CGES investment. Coordinating development plans, outages, protection systems, operational procedures and capacity calculations is therefore essential.
Ownership creates an additional layer of alignment beyond ordinary cooperation between neighbouring TSOs. EMS can observe and influence CGES’s strategic direction through shareholder and governance channels, while technical cooperation continues under network codes, bilateral agreements and regional institutions.
The holding also has a defensive geopolitical purpose. Montenegro’s cable to Italy could have developed principally as an Italian–Montenegrin corridor, with Serbia treated only as one of several external sources of electricity. By becoming CGES’s third-largest shareholder, EMS secured a formal position in the ownership architecture around the project. It ensured that Serbia, the largest interconnected system immediately north of Montenegro, would not remain outside the corporate structure governing the route.
That does not grant Serbia preferential access to the cable. Cross-border capacity must be allocated under applicable market and regulatory rules, and CGES is required to operate as an independent transmission system operator. EMS cannot use its shareholding to reserve transmission rights for Serbian companies, direct dispatch decisions or discriminate against other market participants. Terna faces the same restriction. Strategic influence is exercised through investment priorities, governance and long-term coordination, not privileged commercial access.
The distinction matters because CGES performs a regulated public function. Its grid must be operated neutrally, irrespective of who owns its shares. The strategic shareholders benefit from a larger and more reliable corridor, but they cannot legally convert their equity positions into exclusive transmission capacity.
Italy and Serbia share several objectives. Both want CGES to maintain strong technical performance, a credible investment programme and access to affordable long-term finance. Both benefit from new substations, higher cross-border transfer capability, reliable system-control infrastructure and deeper integration of Montenegro into European electricity-market arrangements.
They also share an interest in protecting CGES from chronic underinvestment. The company’s profits may create pressure for larger dividend distributions, particularly from a government looking for fiscal revenue or minority investors seeking cash returns. Yet excessive dividends can weaken the company’s ability to co-finance transmission projects, absorb cost overruns and support new borrowing.
For Terna and EMS, the value of CGES lies primarily in the future network rather than the immediate dividend. A larger regulated asset base, improved grid resilience and higher transfer volumes can be strategically more valuable than extracting short-term cash. Montenegro’s government must balance that position against domestic tariff sensitivity and public demands that a profitable state-controlled company contribute more directly to the budget.
The interests of the two minority shareholders are aligned but not identical. Terna naturally prioritises infrastructure supporting Italy-facing flows and the utilisation of the submarine interconnector. EMS is more concerned with the northern part of the corridor, capacity across the Serbia–Montenegro border and Serbia’s ability to maintain its position as a regional transmission and trading hub.
Those priorities can compete for limited investment capital. CGES may have to choose between reinforcing domestic supply reliability, connecting new Montenegrin renewable projects, removing constraints toward Serbia or investing in facilities that increase flows toward Italy. Each project can serve several purposes, but the timing and allocation of capital determine which shareholder captures the greatest strategic benefit first.
There can also be competition during regional scarcity. Italy and Serbia may both seek access to flexible hydropower from Montenegro, Albania and Bosnia and Herzegovina. During droughts or thermal outages, both systems can become import-dependent at the same time. Physical interconnection improves security, but it does not eliminate competition for available generation.
Montenegro’s position is therefore stronger than its electricity-market size would suggest. The government’s 55.38 per cent majority gives it control over CGES, while the presence of Terna and EMS embeds two larger neighbouring systems in the company’s development. The arrangement can attract financing, technical knowledge and political support for investments that Montenegro might struggle to justify on domestic-demand grounds alone.
It also imposes a governance obligation. Montenegro must ensure that CGES’s strategy reflects national priorities rather than becoming a compromise between Italian demand for an Adriatic supply route and Serbian demand for access to that route. Domestic security of supply, affordable transmission tariffs, renewable connections and resilience to extreme weather must remain central even as transit activity grows.
The distinction between ownership and national benefit is particularly important. A heavily utilised corridor can increase congestion income and strengthen CGES’s balance sheet, but Montenegro captures the full economic advantage only when the infrastructure also supports domestic investment. New wind, solar, storage and flexible generation projects can transform transmission capacity into local employment, tax revenue, export income and more credible project finance. Transit without domestic generation growth would leave Montenegro earning regulated network returns while much of the commodity value accrues to producers and traders in other markets.
The strategic stakes therefore create both protection and pressure. Terna protects the Italy-facing interconnector by maintaining influence over the network behind it. EMS protects Serbia’s route to the Adriatic and its place in regional transmission planning. Montenegro protects sovereign control through its majority holding.
CGES is consequently more than a national utility. It is the corporate centre of a regional electricity corridor in which three states have distinct but interconnected interests. Italy needs Montenegro to make its Balkan interconnector productive. Serbia needs Montenegro to reach that interconnector efficiently. Montenegro needs both systems to turn a small domestic grid into infrastructure of wider European importance.
