Eastern Serbia is moving from the margins of Serbia’s renewable-energy map into one of its most contested development zones, after new planning activity around the Gornjak wind project signalled the possibility of a large-scale wind complex across the Homolje mountain area. The project, backed by Fortis Energy, is being framed locally as one of the largest renewable-energy ventures in Southeast Europe, with reported planning potential of up to 600 MW and as many as 99 wind turbines across the municipalities of Petrovac na Mlavi and Žagubica.
The numbers need careful treatment. Earlier project material from Fortis described Gornjak as a 194.4 MW wind power project with 27 turbines of 7.2 MW each, located around the Gornjačka gorge, with expected annual output above 520 GWh and a route toward ready-to-build status in 2027. The latest local reporting points to a much wider planning envelope. For investors, lenders and local authorities, that difference is not a technical detail. It is the difference between a large single wind farm and a regional-scale energy platform that would require a much deeper grid, permitting, environmental and financing structure.
Even at the lower disclosed configuration, Gornjak would be a major project for Serbia. At the larger 600 MW planning scale, it would represent a transformational asset. Serbia currently has slightly more than 824 MW of installed wind capacity, within a total renewable-energy base of around 3.77 GW. A full-scale Gornjak development would therefore be equivalent to a very large share of the country’s existing wind fleet, adding one project with enough nominal capacity to materially alter the wind geography of the Serbian power system.
That is why the project should be read less as a single project announcement and more as a test of Serbia’s next renewable-development cycle. The first wave of Serbian wind investment was concentrated largely in Vojvodina and the Banat plains, where access, land configuration and wind-resource modelling were more straightforward. Eastern Serbia is a different proposition. Homolje brings stronger terrain complexity, more visible environmental sensitivity, tourism considerations, mountain logistics and a higher premium on detailed pre-construction engineering. The upside is also different: wind projects in eastern and mountainous zones can offer a production profile that is not identical to flatland sites, which matters for system balancing, portfolio diversification and long-term merchant pricing.
The local planning process has now moved into a more serious administrative phase, with procedures around environmental impact assessment, detailed regulation planning and strategic environmental review becoming central to whether the project can move from concept to bankable development. For a wind project of this size, environmental approval is not a box-ticking exercise. The location is associated with natural landscapes, rural tourism and relatively preserved mountain space, meaning visual impact, bird and bat monitoring, access roads, forest and land disturbance, noise, shadow flicker and biodiversity mapping will all become financing issues as much as permitting issues.
That is where the Homolje project becomes a bankability story. Large wind farms are no longer financed only on the basis of installed megawatts. Lenders now look for a full chain of evidence: wind measurement quality, grid-connection certainty, environmental documentation, land rights, turbine suitability, road and crane-pad logistics, construction sequencing, offtake strategy, balancing exposure and curtailment sensitivity. In a mountainous location, the engineering package becomes even more important because transport corridors, turbine installation windows, weather disruption and geotechnical risk can affect both CAPEX and schedule.
The likely capital requirement would be substantial. A modern onshore wind project in the Western Balkans can easily move within a broad investment range of €1.2 million to €1.7 million per MW, depending on terrain, grid works, turbine selection, logistics, balance-of-plant costs and financing conditions. On that basis, a 194 MW project could require roughly €230 million to €330 million of total investment, while a 600 MW development envelope could imply a much larger capital stack of around €720 million to more than €1 billion before project-specific grid reinforcement, financing costs and contingency are fully assessed. In eastern Serbia’s terrain, the upper end of that range becomes more relevant unless the project benefits from unusually favourable access, connection and construction conditions.
The grid question is likely to be the decisive one. Serbia’s renewable pipeline has expanded faster than the transmission system can easily absorb, and every large wind project now faces sharper scrutiny over connection timing, balancing requirements and system stability. A project in the 600 MW range would not simply connect as another generator. It would become a system asset requiring careful modelling of dispatch, congestion, reactive power capability, forecasting obligations and potential storage integration. The commercial value of the project would depend not only on annual output but on when that output arrives, how it fits into Serbia’s load profile, and how much of it can be delivered without curtailment during high-wind or low-demand periods.
This is where Fortis Energy’s regional strategy matters. The company has presented itself as a significant renewable investor across Southeast Europe, with a portfolio that includes wind, solar, biogas and battery-linked assets. In Serbia, its pipeline has previously been associated with wind projects including Gornjak, Juhor and Vranje, alongside solar and storage development. That portfolio approach is important because the most resilient renewable platforms in Serbia will probably not be single-technology portfolios. They will combine wind, solar, batteries, trading capability and industrial offtake.
Gornjak’s potential strategic value therefore goes beyond electrons delivered to the grid. If structured correctly, a large eastern Serbian wind project could support long-term power purchase agreements with industrial consumers, particularly manufacturers exposed to EU carbon rules and rising demand for documented low-carbon electricity. Serbia’s exporters increasingly need electricity supply that is not merely “green” in marketing terms but technically verifiable through metering, certificates, delivery structure and carbon-footprint documentation. Wind has a role in that market because it can complement solar-heavy portfolios and reduce reliance on daytime-only renewable production.
For banks, the central question will be whether Gornjak can move from attractive resource story to financeable infrastructure. That means locking down the difference between the reported 600 MW planning envelope and the earlier 194.4 MW project configuration. It also means establishing whether the project will be phased, whether all turbines are part of a single permitting and grid-connection strategy, and whether the development will be built as one large asset or as a staged platform with separate investment decisions. A phased structure would reduce financing risk, but it could also complicate environmental, grid and community management if not designed coherently from the start.
Local economic impact will be part of the political case. A large wind development would bring road works, construction contracts, electrical infrastructure, land-lease income, municipal revenues and local supplier opportunities. Yet the same scale will also sharpen public scrutiny. Homolje is not an anonymous industrial zone. It is a landscape with natural, cultural and tourism value. That means the project’s social licence will depend on whether the investor can show that local communities receive durable benefits rather than only temporary construction activity and visual impact.
The comparison with Krivača, the 105.6 MW wind farm opened in eastern Serbia with an investment value of €165 million, is useful but limited. Krivača proved that major wind generation south of the Sava and Danube can be developed and commissioned. Gornjak, especially under the larger planning envelope now being discussed, would operate on a different scale. It would test whether eastern Serbia can host not just one significant wind project but a full renewable-energy corridor capable of attracting large international capital.
The timing is also important. Serbia’s renewable auction process has shown that investor appetite is strong, with competitive prices and oversubscribed capacity in recent rounds. But the market is moving into a tougher phase. Projects now need to prove grid seriousness, environmental readiness and commercial resilience in a power market increasingly shaped by volatility, negative prices, balancing costs and the growing role of storage. In that environment, headline megawatts are no longer enough. A project such as Gornjak must be assessed through delivered energy, grid access, curtailment exposure, financing structure and offtake quality.
Gornjak could become one of Serbia’s most important wind investments, but its final significance will depend on what the planning process confirms. If the project remains close to the earlier 194.4 MW configuration, it would still be a major eastern Serbian wind asset with clear strategic value. If the larger 600 MW structure is validated and advanced, it would become one of the defining renewable infrastructure projects in the Balkans. The next stage will determine whether Homolje becomes a headline location on Serbia’s energy map or a more complex case study in the gap between renewable ambition and bankable delivery.
