www.economica.net/bulgaria-super-bateria-balcanilo

Bulgaria has significantly increased its battery storage capacity, earning the nickname "Battery of the Balkans". With EU funding, it doubled its capacity to 6 GW, enabling efficient energy storage and export during peak demand. This growth has led to a 62% rise in electricity exports, particularly benefiting neighboring Romania amid energy challenges. However, winter months may see reduced reliance on renewable energy due to lower sunlight. The expansion faces hurdles, including the need for network upgrades and potential revenue challenges for investors.