Toki Power Holding GmbH (Toki Power), the electricity trading part of Renalfa Solarpro Group (Renalfa Group), is pleased to announce the successful closing of a major transaction on the Romanian market: the acquisition of a 150 MW standalone Battery Energy Storage System (BESS) project. The deal was finalized on Friday, 5 December 2025, and represents a strategic milestone for the company’s accelerated development in Southeastern Europe’s rapidly evolving energy landscape.
The newly acquired 150 MW standalone BESS project is designed to provide fast-response flexibility and grid support services, helping to integrate more renewable energy into the Romanian electricity system. It follows the pioneer strategy of hybridizing the trader’s market position with direct investment in own flexible assets, which brings superior operational capabilities. The company has already invested in a 110MW distributed portfolio of 4h standalone BESS in Bulgaria, whose first few projects started operating in October 2025. The Romanian project has 2h duration, extendable to 4h, and will become operational by Q4 2026, further strengthening Toki Power’s role as a key player in the regions’s transition to a resilient, secure, and decarbonised energy sector.
This acquisition directly supports Toki Power’s strategic mission to deliver higher-value energy solutions to its clients in Romania. Through the integration of a large-scale storage asset into its portfolio, Toki Power will be able to offer new generation of electricity services:
Improved supply side integration and optimization of renewable generation assets, enabling producers to maximize captured market value;
Greater resilience and reliability, supporting clients who require dispatchable power profiles amid increasing grid constraints;
Advanced digital optimisation, leveraging Toki Power’s platforms to deliver real-time scheduling, forecasting, and automated market participation;
Enhanced balancing and flexibility services, ensuring lower cost and predictable energy supply for customers facing volatility on the day-ahead and intra-day markets;
Demand side peak-shaving and load-management solutions, reducing operational costs for energy-intensive industrial customers.
“This acquisition marks a major step in our regional growth strategy and contributes to our commitment to delivering next-generation energy solutions in Southeast Europe,” said Yuri KATANOV, CEO of Toki Holding. “Romania is one of the most dynamic energy markets in the EU and large-scale storage will play a crucial role in stabilising the grid and supporting the accelerated deployment of renewables.”
“The management of own and third-party flexible assets allows us to offer outstanding balancing and route-to-market services to our partners with renewable assets”, commented Aurel Mindrican, Toki Power’s country manager for Romania. “We are happy to provide attractive terms on the current challenging balancing market.”
Toki Power is Renalfa’s dedicated clean energy trader and aggregator with strong presence in Bulgaria, Northern Macedonia, Romania and Hungary. The company is regional leased in providing full scope route-to-market and optimisation solutions. The combined balancing group of Toki Power clients in the region exceeds 1.5 GW of installed capacity PV, wind and hydro and 1.3 GWh of operational BESS. Leveraging the group’s deep expertise in renewable energy development, EPC, asset management and digital optimisation, Toki Power supports investors and asset owners in maximizing the value of their energy portfolios.
Renalfa Group (https://www.renalfa.com/) is leading Eastern European investor in clean energy and e-mobility. Group’s portfolio companies – the EPC contractor Solarpro (https://solarpro.bg/), independent power producer Renalfa IPP (https://www.renalfaipp.com/), clean energy trader Toki Power(https://www.toki.bg/ & https://kertoki.ro/) , EV charging network Eldrive (https://www.eldrive.eu/) and car sharing platform Spark (https://spark.lt/) are pioneering the energy transition and electrification of transport in Europe.
