The decision by Serbia’s power utility, EPS, to invite foreign joint-venture partners to develop solar and battery storage projects on its coal ash landfills and degraded mining sites marks a significant shift in strategy. While EPS possesses ownership of the land and has the necessary expertise, the move highlights deeper structural challenges within the organization that diverge from typical practices seen in other European countries where state utilities have retained control over similar initiatives.
EPS faces a complex landscape of liabilities and limitations. The coal landfills represent not just potential development sites but also stranded environmental liabilities that require extensive remediation. This creates a long-term financial burden that EPS must navigate. By collaborating with foreign entities, EPS can distribute some of these risks, although it retains nominal ownership of the land. This approach effectively creates a risk firewall that allows EPS to mitigate exposure to soil stability, contamination issues, and future remediation claims.
Financial constraints further complicate EPS’s operational capacity. The utility is already stretched thin, managing substantial capital and operational expenditures associated with maintaining lignite operations and upgrading aging infrastructure. Developing a utility-scale solar plus battery project on reclaimed coal land could demand between €120 million to €180 million for 150–200 MW of photovoltaic capacity and an additional €60 million to €100 million for 200–300 MWh of battery storage. The cumulative investment across multiple sites could exceed €1 billion, which poses a challenge given that these projects do not immediately stabilize cash flow compared to existing operations.
Partnerships with foreign entities provide essential advantages. These partners often bring de-risked capital along with regulatory insights that are crucial for navigating evolving EU-aligned energy frameworks. Their involvement increases the likelihood that projects will receive favorable treatment under new regulations, positioning EPS strategically within a market landscape it does not fully control but must comply with as it moves toward integration with EU energy policies.
The current market design in Serbia presents additional hurdles. The absence of a fully developed capacity or flexibility market means that solar revenues are increasingly unpredictable, while battery storage relies heavily on ancillary services and regulatory conditions that remain uncertain. When foreign partners lead development efforts, they can structure projects under long-term power purchase agreements or hedged trading strategies—options that EPS cannot easily pursue due to its status as a regulated public utility.
Governance dynamics play a critical role in this strategy shift. EPS operates under significant public scrutiny, making any independent investment decisions politically sensitive. Joint ventures help diffuse accountability, allowing decisions to be framed as collaborative outcomes rather than unilateral commitments from EPS alone. This arrangement reduces the political risks associated with potential underperformance or controversy surrounding project outcomes in an environment where state utilities often face intense political pressure.
The strategic implications extend beyond immediate financial concerns. The symbolic act of transforming coal landfills into solar and storage facilities sends a strong message regarding Serbia’s commitment to energy transition efforts—a narrative amplified by partnering with foreign firms. This approach positions these projects within the broader context of European energy transition initiatives rather than merely local undertakings, enhancing EPS’s reputation in an era where financing increasingly hinges on environmental, social, and governance (ESG) factors.
The decision not to follow the path taken by other utilities in Europe—who typically retain full control over similar transformations—reflects unique constraints faced by EPS. Unlike its peers who benefit from explicit state guarantees for transitional investments and regulated cost recovery mechanisms, EPS operates within a hybrid framework that limits both its ability to absorb losses and capture potential gains from investments in renewable technologies.
This strategic choice effectively cedes first-mover advantage over its own assets to foreign partners, positioning EPS more as a facilitator than as an owner of new flexibility resources. As these partnerships evolve, they may reshape market dynamics, allowing battery operators associated with these ventures to influence price formation and dispatch logic within Serbian energy markets while EPS transitions into a role reliant on purchasing services it could have otherwise developed internally.
Ultimately, this decision underscores an institutional compromise reflective of the current distribution of power, risk management practices, and accountability within Serbia’s energy sector. Until there is a clear policy direction supporting EPS as a long-term asset owner capable of managing transition risks effectively—with appropriate regulatory backing—the trend towards reliance on foreign joint ventures for solar and battery projects is likely to continue.
