Post by Volue

Storage is no longer a side note in Bulgaria's power market. It is reshaping it. The country now holds around 𝟯.𝟱 𝗚𝗪 𝗼𝗳 𝗶𝗻𝘀𝘁𝗮𝗹𝗹𝗲𝗱 𝗯𝗮𝘁𝘁𝗲𝗿𝘆 𝗰𝗮𝗽𝗮𝗰𝗶𝘁𝘆 – 𝗿𝗼𝘂𝗴𝗵𝗹𝘆 𝟰𝟱% 𝗼𝗳 𝗶𝘁𝘀 𝗰𝗼𝗺𝗯𝗶𝗻𝗲𝗱 𝘀𝗼𝗹𝗮𝗿 𝗮𝗻𝗱 𝘄𝗶𝗻𝗱. That scale is already changing how prices behave. Bulgaria and Romania have long moved together on the day-ahead market. That link is now loosening, and the clearest signal is in the evenings: when batteries discharge hardest, the two countries' prices pull noticeably apart. Storage has become a force that sets the evening market rather than simply following it. Our analysis confirms the direction – the more batteries inject, the wider the gap opens. This is the energy transition showing up in the price curve, in real time. It is encouraging to see the transmission system operator publishing live battery charging and discharging data. The harder problem sits further down the grid: distribution operators cannot yet separate battery discharge from solar output on co-located sites, so the metered data blends the two – and that materially affects how accurately the market can be forecast. And there's a part of this story we're proud of: a large share of Bulgaria's batteries are already optimised and traded through 𝗩𝗼𝗹𝘂𝗲 𝗧𝗿𝗮𝗱𝗶𝗻𝗴 𝗦𝘂𝗶𝘁𝗲 (𝗦𝗺𝗮𝗿𝘁𝗣𝘂𝗹𝘀𝗲). The shift reshaping this market is one our customers are actively capturing – with Volue behind the trades. We will keep watching how storage rewrites the map of coupled markets across the region. Natasha Adams Evelina Mitrofan Helmut Spindler