May 28, 2025 · A battery energy storage system (BESS) described as the largest deployed to date in the European Union (EU) has been commissioned in Bulgaria. Officials with the
Jun 19, 2024 · A 25MW/55MWh BESS has been commissioned by operator Renalfa IPP in Bulgaria, using technology provided by Chinese firms Hithium and Kehua.
Jul 16, 2025 · Bulgaria-based International Power Supply (IPS) is opening a factory for battery energy storage systems, using proprietary technology. The Exeron X-BESS is one of only six
In June 2024, the 25 MW / 55 MWh utility-scale battery energy storage system (BESS) located in Razlog Municipality, Southwestern Bulgaria commenced commercial operations. This
May 19, 2025 · 🔍 Final Thoughts The synergy between the PCS and EMS, facilitated by RS485 and Modbus communication, is the backbone of an efficient BESS. Understanding this interaction
May 19, 2025 · 🔍 Final Thoughts The synergy between the PCS and EMS, facilitated by RS485 and Modbus communication, is the backbone of an efficient BESS. Understanding this interaction not only highlights the
Jan 6, 2025 · "The repaired hydropower unit of the Chaira Hydroelectric Power Plant is about to undergo tests for launch in early 2025." (Mediapool, 24 October 2024) "No applicants: The
Jun 12, 2023 · Data and communications experts for BESS Our unique combination of technology toolbox, applications experience and product development aptitude empowers customers to
Jul 1, 2025 · Our team at Provolt Energy recently completed a comprehensive technical scan of the EMS (Energy Management System) landscape for BESS deployments spanning utility-scale, C&I, hybrid, and
May 14, 2025 · Electrohold is an arm of Eurohold, a major IPP and transmission and distribution network owner in Bulgaria. Image: Electrohold. The Mobility House will provide its aggregation
May 14, 2025 · Electrohold is an arm of Eurohold, a major IPP and transmission and distribution network owner in Bulgaria. Image: Electrohold. The Mobility House will provide its aggregation and trading software to
May 28, 2025 · A battery energy storage system (BESS) described as the largest deployed to date in the European Union (EU) has been commissioned in Bulgaria. Officials with the country''s Ministry of Energy
Jul 16, 2025 · Bulgaria-based International Power Supply (IPS) is opening a factory for battery energy storage systems, using proprietary technology. The Exeron X-BESS is one of only six strategic projects in the European
May 28, 2025 · A c.500MWh BESS project in Bulgaria has been inaugurated, claimed as the largest in the European Union (EU). The battery energy storage system (BESS) in Lovech, northern Bulgaria, is comprised of 111
Jun 19, 2024 · A 25MW/55MWh BESS has been commissioned by operator Renalfa IPP in Bulgaria, using technology provided by Chinese firms Hithium and Kehua.
May 28, 2025 · A c.500MWh BESS project in Bulgaria has been inaugurated, claimed as the largest in the European Union (EU). The battery energy storage system (BESS) in Lovech,
Jul 1, 2025 · Our team at Provolt Energy recently completed a comprehensive technical scan of the EMS (Energy Management System) landscape for BESS deployments spanning utility

The system is the largest in Bulgaria. Image: Renalfa IPP. A 25MW/55MWh battery energy storage system (BESS) has been commissioned in Bulgaria, Eastern Europe, by operator Renalfa IPP, using technology provided by Chinese firms Hithium and Kehua.
The Renalfa IPP project in Razlog has been claimed as the biggest project of its type in Bulgaria. It is also larger than the biggest project to come online so far in neighbouring Romania, a 6MW/24MWh BESS in that country’s Constanta County, co-located with solar PV and wind generation plants.
Fractal EMS – On-prem/cloud hybrid with air-gapped security, ideal for PV+S and CIP-compliant sites. Nor-Cal Controls – Deep customization with SCADA/DERMS overlays, strong U.S. utility adoption. Siemens Energy – Scalable to GW-class systems via Xcelerator suite; global compliance standards.
The BESS technology was provided by energy storage-focused lithium-ion OEM and BESS firm Hithium and power solutions firm Kehua Tech, both based in China. Hithium won the contract back in November last year, as reported by Energy-Storage.news at the time.
A 25MW/55MWh BESS has been commissioned by operator Renalfa IPP in Bulgaria, using technology provided by Chinese firms Hithium and Kehua.
Scalability: Standardized protocols like Modbus make it easier to integrate additional components or expand the system. The synergy between the PCS and EMS, facilitated by RS485 and Modbus communication, is the backbone of an efficient BESS.
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