ANRE regulation turns controllable load into a market offering
Romania has approved a regulation through which electricity consumers, suppliers and aggregators can be paid for reducing demand when the system needs flexibility. The framework was approved by ANRE in August. It effectively converts controllable consumption into a market product.
Under the rules, eligible participants can submit voluntary load reductions. Accepted and verified reductions are remunerated through a mechanism operated with Transelectrica. The arrangement is designed to support system flexibility needs.
Demand-side participation changes balancing options during peak scarcity
For Southeast Europe, the development extends beyond Romania’s borders. The regional electricity transition has so far been shaped primarily by investment in supply, including solar, wind, hydro, batteries and interconnections. Demand-side resources have remained largely passive in that model.
Romania is now introducing a structure that allows industrial consumers, commercial loads and aggregators to participate directly in system balancing. This adds a new category of flexibility alongside generation assets and batteries. When electricity becomes scarce during evening peaks, the system traditionally relies on increasing production, importing electricity or discharging storage.
Demand flexibility adds a fourth option: temporarily reduce consumption when the economic cost of doing so is lower than producing another megawatt-hour. For large industrial users, this can create an additional revenue stream tied to operational decisions. A steel mill, cement producer, cold-storage operator, data centre, pumping station or other flexible industrial facility may shift operations by an hour or two rather than permanently reduce consumption.
Aggregators and batteries cover different parts of the flexibility stack
Aggregators could play a role because many individual consumers are too small to participate efficiently on their own. By pooling multiple loads, an aggregator can build a portfolio capable of bidding meaningful capacity into flexibility markets. This approach links smaller demand sites to system balancing requirements.
The mechanism also aligns with Romania’s rapidly expanding battery fleet. Battery energy storage systems can respond in milliseconds and provide frequency-control services, while flexible consumers may be better suited for longer-duration load reductions. Together, they support different segments of the flexibility stack.
Renewables ramping increases the need for flexible demand
Romania’s timing is tied to changing generation patterns as solar capacity expands. Rapid additions are increasingly creating low-price midday periods followed by sharp evening ramps. As renewable penetration rises, the market requires more assets able to respond to the shift from midday abundance to evening scarcity.
Demand-side participation reduces the amount of new generation that must be held available solely for peak periods. It may also lower balancing costs. Broader adoption would shift how electricity markets value flexibility rather than only consumption levels.
Regional implications for Serbia, Bulgaria and Croatia
Romania’s approach could serve as a reference model for other Southeast European systems. The source points to Serbia, Bulgaria and Croatia among jurisdictions that could eventually follow similar structures for demand-side flexibility. The next phase of the regional transition will therefore depend not only on who can generate electricity.
It will also depend on who can stop consuming it and at what price . That element links consumer-side capabilities to system needs during periods when supply is tight .
