Auctions and Contracts for Difference (CfDs) are increasingly used to finance renewable energy projects in South East Europe. While they do not remove all project risks, they change the risk profile of renewable investments. Developers can access cheaper capital, and lenders may view projects as more financeable.
The value proposition varies by stakeholder. Developers receive revenue stability, lenders gain improved bankability, and governments use auctions for competitive price discovery. Consumers may benefit from lower long-term electricity costs and reduced exposure to wholesale market volatility.
Romania delivers CfD-backed auction volumes supported by EBRD
Romania has become a regional reference point for this shift. With support from the European Bank for Reconstruction and Development (EBRD), the country has run two renewable energy auctions under its CfD framework. Together, the auctions awarded about 4.2 GW of solar and wind capacity, exceeding a 3.5 GW target under its Recovery and Resilience Plan.
The second auction allocated 2,751 MW of CfD-backed capacity. It attracted bids above 5,500 MW, indicating strong investor interest and competition among renewable developers.
The CfD framework is also changing how Romania is positioned in regional investment discussions. The market is increasingly described as an auction-backed investment environment rather than a purely merchant opportunity tied to wholesale power prices. This shift is linked to higher revenue certainty for financed projects.
Two-way CfDs link payments to market prices
Two-way CfDs operate through a strike price mechanism tied to market outcomes. When market prices fall below the strike price, developers receive compensation. When prices rise above that level, revenues are returned under the contract terms.
Long-term CfD support can affect financing structures for renewable assets. Projects backed by such contracts can typically sustain higher debt levels, reduce equity risk premiums, and attract a wider range of lenders and institutional investors.
A financing package for 531 MW of solar capacity in Romania illustrates the structure described in the market. The Slobozia project is supported by a 15-year CfD, while other projects in the package rely on merchant revenues.
Serbia’s second auction awards capacity with competitive solar and wind bids
Serbia is also moving toward a more bankable renewables market through auctions. Its second renewable energy auction attracted 41 project proposals and awarded support for up to 645 MW of new capacity. The auction results included bids of about €50.9/MWh for solar and €53.6/MWh for wind.
The relevance of Serbia’s approach extends beyond national borders due to its role in the Western Balkans power system outside the European Union. Competitive auctions, market premiums, and more transparent offtake structures are cited as factors that can improve investor confidence and reduce reliance on ad hoc bilateral agreements.
Auction readiness requirements and bidding risks shape project economics
Auction processes can introduce additional development discipline by rewarding projects ready for execution. Competitive tenders can favor proposals with secured land rights, advanced permitting, grid connection agreements, realistic cost assumptions, and credible financing plans.
Auction participation can also create risks when assumptions are weak. Developers that underestimate construction costs, financing expenses, or delivery timelines may face pressure on project economics even after winning support.
Key design issues include strike levels, grid build-out, inflation and storage
Strike prices need to remain high enough to ensure projects reach delivery milestones. If auction prices are set too low, awarded projects may fail to reach financial close or enter commercial operation.
Grid infrastructure is another constraint highlighted alongside renewable deployment plans. Awarding gigawatts of new capacity without corresponding transmission and distribution investment can lead to congestion, curtailment, and delays that affect investor confidence.
Auction frameworks also need to address multiple risk categories including inflation risk, foreign-exchange exposure, balancing obligations, commissioning deadlines, and negative electricity prices.
A further challenge concerns energy storage as system flexibility needs increase with higher renewable penetration. Future rounds may need to support hybrid renewable-storage projects or create incentives for technologies providing balancing and grid-support services.
CfD-backed assets influence renewables M&A and refinancing
The expansion of auctions and CfDs is reshaping mergers and acquisitions in renewables financing. Projects with long-term CfD contracts can be easier to finance, sell, and refinance because future revenue streams are more predictable.
This can shift developer priorities toward originating projects, securing permits, and de-risking before selling them to utilities, infrastructure funds, or institutional investors. Strategic buyers may prefer auction-backed assets where revenue uncertainty is lower and cash flows are more stable.
CfD-linked stability can come with a trade-off versus fully merchant exposure. Projects operating under CfDs generally offer lower returns than merchant assets because developers give up part of the upside from high market prices in exchange for greater financing certainty and reduced risk exposure.
Auction frameworks remain central to converting renewables potential into projects
Across South East Europe, auctions and Contracts for Difference are described as a bridge between policy ambition and private capital. Countries designing credible, transparent, investor-friendly auction frameworks are expected to attract lower-cost financing and accelerate renewable deployment.
The same framework discussion also points to consequences for markets that delay reforms or maintain unstable regulatory conditions. In those cases, renewables development may rely more heavily on state utilities, development finance institutions, and opportunistic capital.
The next phase of renewables policy is described as focused on improving auction design rather than increasing volumes alone. Frameworks highlighted as priorities include bankability features that account for grid constraints and storage compatibility alongside transparency requirements.
Southeast Europe’s renewables potential is described as already abundant in resource terms. The remaining challenge is converting that potential into projects that can be built, connected, and operated successfully using well-designed CfD schemes .
