Montenegro’s 54.6 MW Gvozd wind farm is starting to change the seasonal balance of Elektroprivreda Crne Gore (EPCG), with new renewable generation coming online during a period when weak hydrology has increased the utility’s reliance on electricity imports and regional wholesale prices.
EPCG said the project generated approximately 26 GWh in its first three months of operation. The utility valued that output at roughly €2.43 million using prevailing Montenegrin market prices. EPCG also estimated that Gvozd reduced its electricity deficit by around 8.5% over the same period.
Impact on EPCG’s generation balance and deficit
The company linked the deficit reduction to the contribution of non-hydro renewable output in a system still influenced by rainfall, reservoir levels and the operating availability of large thermal assets. EPCG’s assessment places emphasis on physical balance effects rather than revenue alone.
With an expected annual generation target of around 150 GWh, Gvozd is described as becoming material for Montenegro’s domestic electricity market. The project’s relevance is tied to periods when poor hydrological conditions reduce output from EPCG’s hydroelectric portfolio.
EPCG said wind does not eliminate weather sensitivity, but it diversifies exposure within the generation mix. Low reservoir levels and weak river inflows do not necessarily coincide with weak wind conditions, which EPCG said broadens its supply profile compared with a system dominated by hydro and lignite.
Hydrological stress and regional power system conditions
The summer of 2026 has highlighted hydrological stress risks for southeastern European power systems, according to the information reviewed. Low river flows affected hydroelectric production across the region.
In Romania, low river flows also contributed to the shutdown of nuclear generation due to cooling-water restrictions. Montenegro’s power balance faced similar pressure from hot weather, higher seasonal consumption and constrained hydro conditions.
EPCG said Gvozd is therefore more than incremental capacity within its portfolio. The project is positioned as providing additional coverage for the part of its generation mix most sensitive to drought.
Planned expansion: Gvozd II contract and combined output
EPCG is preparing an expansion through Gvozd II, with planned capacity of 21 MW. The second phase is being developed under a €26 million contract with Nordex.
If completed, the combined complex would reach approximately 75.6 MW. Expected annual electricity generation after both phases would exceed 210 GWh.
EPCG said the disclosed contract value indicates that the extension is not a marginal addition to the existing project but a meaningful capital programme. Once both phases are operating, it said the complex would provide a larger block of long-term renewable capacity without fuel purchases and without creating the same hydrological exposure as EPCG’s hydro assets.
Market timing, hourly spreads and project value signals
The commercial value of Gvozd is described as depending on when electricity is produced. Wind generation has a different system profile from solar, with output available during evening and overnight periods when photovoltaic production disappears.
EPCG linked this profile to evening scarcity hours that have driven Balkan day-ahead prices above midday levels this summer . During the regional trading session for 19 August, several southeastern European markets recorded evening prices above €210/MWh, while some midday hours were close to or below €100/MWh.
EPCG noted that daily average electricity prices can mask wide hourly spreads. It said wind available during higher-priced periods can carry more system and commercial value than energy produced during solar-heavy midday hours .
Disclosed figures versus financial metrics and portfolio role
EPCG has not disclosed project-level operating costs, financing structure or expected equity returns for the enlarged Gvozd complex in the information reviewed. As a result, it said a reliable project IRR cannot be established from the disclosed figures alone.
The strategic value described by EPCG is already visible in reduced summer energy deficit performance . The combination of 54.6 MW already operating and another 21 MW planned, alongside annual generation potentially rising above 210 GWh, is presented as improving EPCG’s wholesale-market position rather than only adding to national generation statistics.
EPCG also stated that as it develops additional solar, wind and storage projects, Gvozd’s significance may increasingly relate to portfolio economics . It said each additional megawatt-hour produced domestically during periods of weak hydro generation reduces volumes that must be purchased from neighbouring markets where Montenegro can face exposure to prices above its domestic production cost.
The first operating months are cited as indicating that Gvozd is beginning to perform this role in practice .
