Second-phase applicant for Đerdap 3 pumped storage
A consortium led by Bechtel UK Holdings International and including Turkey’s ENKA has been identified as the only applicant meeting Serbia’s requirements for the second phase of strategic-partner selection for the Đerdap 3 pumped-storage project. The announcement follows a June call in which six groups responded. Other applicants named include Voith Hydro, Fresh Development with Serbia’s LDS, Channell Commercial Corporation, Global TBM, and Serbia’s Moravacem.
A government working group concluded that the Bechtel-led consortium demonstrated the required US ownership, front-end engineering management, hydropower experience, and delivery of energy infrastructure worth more than €1 billion. The selection outcome is limited to the strategic-partner process and does not constitute an engineering, procurement and construction award.
Scope, investment estimates and project design variables
Serbia said the decision does not determine final project scope through an EPC contract. Key elements including installed capacity, reservoir configuration, number of units, and construction cost remain subject to feasibility and engineering work. Current official estimates place total investment above €2.63 billion, while earlier concepts considered configurations of approximately 1,200 MW to 2,400 MW.
The strategic-partner track is separated from a separate documentation tender opened by Serbia. The tender covers general design, preliminary feasibility study, special-purpose spatial plan, and strategic environmental assessment. Serbia set the tender value at RSD625 million, or approximately €5.3 million, with applications due by 20 August.
Tender split, cross-border requirements and financing structure
Serbia noted that Bechtel and ENKA may continue discussions as part of the strategic-partner process, but there is no commitment to construction funding. Serbia has also not provided sovereign guarantees or a final technical design. Romania must be involved because the plant would interact with the shared Iron Gates hydropower and navigation system.
A bankable structure would need to address ownership arrangements, market dispatch rules, water rights, cross-border operating procedures, and revenue sources. The project’s financing approach would not rely on wholesale arbitrage alone for a development above €2.6 billion. Capacity payments, balancing revenue, ancillary services, and potentially regulated availability income are cited as elements that would be required to support long-tenor debt.
Drought conditions affecting operational assumptions
The current drought is referenced in connection with both sides of the investment case. Serbia is described as needing flexibility that can replace evening imports and absorb future wind and solar surpluses. At the same time, project design must show that adequate water and reservoir capacity remains available during dry periods when electricity is most valuable.
The requirement focuses on ensuring reservoir performance during precisely those dry intervals rather than only average conditions. This operational constraint is presented alongside the need for market-facing flexibility in Serbia’s power system planning for Đerdap 3.
