Romania power trading tightens around integrated portfolios as cross-border arbitrage fades

Romania’s electricity trading landscape is becoming less about directional cross-border bets and more about how well market participants can optimise their own generation and procurement. An analysis based on company disclosures, market share information and OPCOM activity shows that concentration among integrated players persists even as independent traders increase activity in specific segments.

Integrated giants still dominate liquidity and price formation

At the centre of Romania’s wholesale market is Hidroelectrica, which combines the country’s largest generation portfolio with a leading position in wholesale sales. The company reported total electricity sales of about 10.13TWh in 9M 2025 alongside net profit of roughly RON 3.3bn for the full year, supported by high-margin hydro output and optimisation of flexible generation.

Hidroelectrica’s market share is estimated at approximately 14–17% across competitive and total supply segments. That scale underpins its role as one of the primary providers of liquidity on OPCOM and a key driver of price setting.

Electrica ranks as the largest commercial supplier and also stands out as a major portfolio trader. It supplied around 7.3TWh in 2025, remaining the second-largest supplier by volume, while reporting net profit near RON 1.2bn and EBITDA of RON 2.38bn. Its trading exposure is linked to its retail book—procurement, hedging and balancing strategies are described as forming the core of its wholesale risk management rather than speculative trading.

Nuclear and gas-power shape stability through forward contracting

Nuclearelectrica, which anchors baseload stability, reported annual net profit of about RON 2.3bn and production close to 7.4TWh in 9M 2025. Its approach is predominantly forward-oriented: structured contracts are prioritised over engagement with short-term volatility, positioning the firm as a stabiliser within wholesale dynamics.

OMV Petrom, meanwhile, operates what is described as one of the region’s more sophisticated multi-commodity trading platforms. In electricity terms, it generated approximately 4.7TWh in 2025 from its Brazi gas-fired plant—around 9% of national generation—with results from its gas-and-power segment including RON 12.7bn in sales and an operating result of RON 570mn. Its advantage is tied to arbitrage across gas sourcing, dispatch decisions and power market positioning rather than relying on standalone electricity margins.

A mid-tier built on procurement desks; independents focus on niches

The supplier environment beyond these core names becomes more fragmented but remains meaningful overall. Market share data indicate that PPC Energie Romania and E.ON Energie Romania