Informing the viable application of electricity storage technologies, including batteries and pumped hydro storage, with the latest data and analysis on costs and performance. . The next decade, running from 2025 through 2035, will define whether Southeast Europe becomes a flexible, renewable-anchored, price-stabilised regional power ecosystem or whether it continues struggling through volatility and fossil dependence. The decisive factor is battery storage. By the end of. . Serbia's national power utility Electric Power of Serbia (EPS) produces nearly 70 percent of the country's electricity from coal and nearly 27% percent from hydropower, with approximately 4% coming from private developers in wind and solar energy. Serbia heavily subsidizes coal and electricity. . EDS manages one of Southeast Europe's largest distribution networks: 37,000 substations connected by 168,000 kilometers of lines, delivering electricity to more than 3. 8 million customers. This vast infrastructure, built and expanded over generations, has reliably powered the country's growth. Investments in battery energy storage systems (BESS) is ramping up around the world and Serbia is now. . This plan includes new storage, smart meters, and numerous charging points for electric vehicles (EVs). More renewables, more flexibility. Utility-scale wind and solar energy are expected to expand to ~3 GW installed by 2030, supported by pumped storage projects (such as Bistrica) and battery. .