Romania is beginning to turn electricity demand and previously passive backup infrastructure into tradeable power-system assets, creating one of Southeast Europe’s clearest emerging markets for aggregators and virtual power plants.
Two developments illustrate the shift.
Transmission operator Transelectrica activated Romania’s first balancing reserve group made entirely from controllable electricity consumption in September, while Huawei Romania, Bamboo Energy and Flexumers are developing a virtual power plant that aggregates batteries installed at telecom sites.
The technologies are different, but the commercial model is the same.
Instead of building another power station, an aggregator identifies flexibility already embedded in the economy, combines hundreds or thousands of smaller assets and sells their coordinated response into electricity markets.
That could substantially expand the pool of capacity available for balancing Romania’s increasingly complex power system.
Factories start selling electricity they do not consume
On Sept. 1, a portfolio aggregated by Flexumers supplied 3 MW of upward manually activated frequency restoration reserve, or mFRR, entirely by reducing electricity consumption.
No generator or storage unit was involved.
For industrial consumers, that represents an important change in their relationship with the power market.
Factories traditionally buy electricity as a production input. Demand response allows them to sell another product: the ability to temporarily reduce or shift that consumption when the system needs it.
The factory does not necessarily stop production.
Flexible loads can include pumps, compressors, refrigeration, heating and ventilation systems, water treatment or other processes where electricity use can be moved for limited periods without materially affecting output.
An aggregator identifies those loads, establishes a consumption baseline and combines flexibility from several customers into a portfolio large enough to participate in electricity markets.
When Transelectrica requests an activation, the aggregator distributes the required response among participating consumers.
The customer can then receive part of the flexibility revenue.
The economic calculation is relatively straightforward: a company participates when the payment received for changing consumption exceeds the operational cost of doing so.
Regulation creates a new industrial service
Romania has also started putting the regulatory structure around that business.
Energy regulator ANRE approved rules in August allowing eligible consumers to provide consumption-flexibility services directly or through suppliers and aggregators, with remotely readable metering supporting measurement and verification.
That gives aggregators access to a potentially large pool of assets requiring little conventional energy investment.
Flexumers has estimated Romania could have about 700 MW of potential aggregation capacity, although only part of that theoretical resource will ultimately be technically available and commercially viable.
The importance is nevertheless considerable.
A steel plant, food processor, cement producer or logistics centre could become an electricity-market participant without owning a power plant.
Its flexible consumption becomes the asset.
Telecom batteries create a different kind of power plant
The second Romanian experiment takes the same principle into infrastructure that already contains physical energy storage.
Telecommunications networks require batteries to maintain service during electricity outages. Thousands of these installations spend most of their operating lives waiting for an emergency.
The partnership involving Huawei Romania, Bamboo Energy and Flexumers aims to determine whether part of that dormant capacity can also provide electricity-market services while preserving the batteries’ primary backup function.
Bamboo Energy provides optimisation technology, while Flexumers provides aggregation and market access.
The partners plan to test charging and discharging against market conditions and participation in mFRR and aFRR balancing services.
The concept differs from constructing a conventional grid-scale battery.
The batteries already exist.
The investment opportunity lies largely in software, communications, market access and optimisation needed to turn geographically dispersed devices into a single controllable portfolio.
A virtual power plant could therefore consist of thousands of relatively small assets that the electricity market sees as one resource.
From stranded capacity to recurring revenue
That creates a wider business opportunity.
Telecom operators traditionally treat backup batteries as a resilience expense.
Aggregation could potentially convert part of that expenditure into a revenue-generating asset.
The same principle could apply to other sectors.
Data centres, hospitals, logistics facilities, commercial buildings and industrial plants often maintain batteries, generators, thermal systems or other equipment whose primary purpose is not participation in electricity markets.
Some of that infrastructure may contain flexibility that can be monetised without undermining its core function.
The value lies in identifying exactly how much capacity can safely be made available, at what time and under what operational constraints.
That is essentially the aggregator’s business.
Romania becomes a test for the aggregator model
The emerging Romanian market therefore has two sides.
Industrial demand response converts controllable consumption into flexibility.
Virtual power plants convert distributed physical assets into flexibility.
An aggregator can eventually combine both.
A single portfolio could include factories temporarily reducing demand, telecom batteries discharging, commercial buildings adjusting HVAC systems and EV fleets delaying charging.
The electricity system would see the combined portfolio as controllable capacity rather than thousands of separate devices.
This makes aggregation fundamentally different from another renewable-energy or storage-development cycle.
The scarce asset is not necessarily generation capacity.
It is the ability to identify, verify and coordinate flexibility distributed across the economy.
The software layer becomes the market
The larger commercial opportunity therefore sits increasingly in software.
Aggregators need to forecast customer behaviour, determine asset availability, optimise bids, issue dispatch instructions, collect meter data and prove that requested flexibility was actually delivered.
They must also manage conflicts between different revenue opportunities.
A telecom battery cannot simultaneously provide its full capacity to several balancing products while retaining the reserve needed to protect the communications network.
Similarly, an industrial consumer cannot promise flexibility that its production schedule cannot reliably deliver.
Portfolio optimisation becomes the central product.
That creates potential markets for virtual power plant platforms, automated demand-response systems, industrial energy-management software and flexibility verification services.
Romania is therefore moving beyond the first stage of electricity-market liberalisation.
The emerging question is no longer only who can generate and trade electricity.
It is who can control the thousands of smaller loads and assets already connected to the system — and turn their flexibility into a bankable electricity-market product.
