Local technology providers enlisted for large-scale Romania BESS project

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Power generation firm Hidroelectrica has enlisted local firms Prime Batteries Technology and Enevo to deploy a large-scale BESS project in Romania.

The state-owned firm announced the completion of the tender procedure for the 36MW/72MWh battery energy storage system (BESS) to be deployed at its 108MW Crucea Nord Wind Farm last week (7 April).

It is the first lithium-ion BESS for the company, which operates over 7GW of hydropower.

It sought a BESS for the site to reduce internal imbalances of the wind plant within its portfolio, as well as provide system balancing services and decrease wear and tear on the wind plant itself. Local reports said the wind plant has been operating at a significant loss due to unfavourable balancing requirements.

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Prime Batteries Technology and Enevo Group won the contract which is worth 79.8 million RON (€16 million/US$18.2 million) excluding VAT, and the project needs to be completed within 12 months of it being signed. The nominal power of the system will be 36MW with a nominal energy storage capacity of 72MWh.

Prime Batteries Technology is a Romania-headquartered battery technology company which provided the BESS for a 6MW/24MWh project for independent power producer (IPP) Monsson, inaugurated in April last year. Enevo meanwhile is an engineering and consulting firm.

In a follow-up interview last year, a board member of Monsson claimed that Prime Batteries manufactured the battery cells locally for integration into Monsson’s own BESS solution (Premium access article) and the project was celebrated as a beacon of hope amidst a tough time for Europe’s nascent battery industry.

Monsson has gone on to reveal even larger projects, including a 2GWh early-stage one, which will also be built with its own energy storage solution.

Like numerous other European Union (EU) Member State countries, Romania has leveraged EU funds to kickstart its energy storage industry in the face of rising balancing costs as more solar and wind plants come online. Large-scale BESS projects from developers we’ve reported on in the past year in Romania include a 254MWh project from R.Power, a 70MWh one from Electrica, and a 204MW one from Electric Spot.

IPP Econergy told Energy-Storage.news last year it was planning to deploy BESS at many of its solar PV projects in Romania, where it is the largest operator of solar PV.

26 November 2026
9am GMT / 1pm GST
In this webinar, Florian Didier and Salomé Perperot from Clean Horizon share the approach they use when supporting IPPs through optimiser selection and contract negotiation across Europe. The presentation will be followed by a live Q&A session in which attendees can put their own questions to the speakers. Who should attend: IPPs and developers, asset owners and investors, lenders and financial advisors, and anyone involved in the commercial structuring of battery storage projects.
2 December 2026
Italy
Battery Asset Management Summit Europe is the annual meeting for owners, operators, investors, and optimisation specialists working with operational BESS assets across the continent. The Summit focuses on how to maximise performance and revenue, manage degradation, integrate advanced optimisation software, navigate evolving market and regulatory frameworks, and plan for repowering or end-of-life strategies. With insights from Europe’s most active storage markets, it equips attendees with practical guidance to run resilient, profitable battery portfolios as the sector scales.
22 February 2027
InterContinental London - The O2, London, UK
The Future of Energy Storage Starts Here Three days in London where developers, IPPs, investors, utilities and the manufacturers building the technology come to close deals, not swap business cards. If you need to be in the room with the people deploying capital into European storage, this is that room.

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