Bulgarian state-owned power utility, the National Electricity Company (NEK), plans to install a 10 MWh battery energy storage system (BESS) at its recently reconstructed Vacha 1 hydropower plant by the end of this year. [pdf]
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This significant milestone marks the system as Bulgaria's largest BESS project to date, jointly developed by Kehua, the world-leading PV and ESS solution expert and Solarpro, the largest energy EPC company in Eastern Europe. Project Overview - Capacity: 25 MW / 55 MWh [pdf]
Bulgaria has installed between 40 MWh and 50 MWh of battery energy storge capacity to date. However, new national legislation as well as funds provided through the European Union’s Recovery and Resilience Facility (RRF) could add another 1 GWh of storage capacity over the next two years. [pdf]
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The project is the first utility-scale Battery Energy Storage System in Bulgaria as well as one of the first of such scale in Eastern Europe. The 25MW/55 MWh BESS supports a 33 MWp PV plant equipped with a photovoltaic tracker mounting system. Solarpro Technology is providing turnkey EPC services. [pdf]
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With nearly 10 GWh of standalone energy storage capacity awarded—more than triple the initial target—the country is making significant headway in reinforcing grid stability and accelerating the integration of renewables. [pdf]
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Rystad Energy’s analysis has set the battery system costs at a flat €60 per MWh. Despite this opportunity, the conference argued that until recently energy storage was not a big thing in Bulgaria and this is due to Bulgaria’s plentiful operational coal and nuclear capacities. [pdf]
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The Bulgaria Electric Energy Storage Project involves the approval of 82 standalone battery storage projects with a total capacity of 9.71 GWh. The Bulgarian Ministry of Energy has allocated EUR 587 million in subsidies for these projects, which are part of the RESTORE program aimed at enhancing energy storage resources by March 20262. The selected projects will significantly contribute to grid stability and the integration of renewable energy sources4. Overall, the initiative marks a substantial increase in energy storage capacity, exceeding the original target of 3 GWh5. [pdf]
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Technology costs for battery storage continue to drop quickly, largely owing to the rapid scale-up of battery manufacturing for electric vehicles, stimulating deployment in the power sector. .
Major markets target greater deployment of storage additions through new funding and strengthened recommendations Countries and regions making notable progress to advance. .
Pumped-storage hydropower is still the most widely deployed storage technology, but grid-scale batteries are catching up The total installed. .
While innovation on lithium-ion batteries continues, further cost reductions depend on critical mineral prices Based on cost and energy density considerations, lithium iron phosphate. .
The rapid scaling up of energy storage systems will be critical to address the hour‐to‐hour variability of wind and solar PV electricity. [pdf]
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Large capacity batteries offer extended usage durations, lower costs, longer cycle times, and high stability, making them ideal for a wide range of applications from portable electronics to renewable energy storage. 3. How do large capacity batteries contribute to sustainability? [pdf]
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