Bosnia and Herzegovina’s transmission system faces a queue of proposed solar and wind projects totalling about 18.1 GW, more than three times the country’s existing generation capacity. The scale is putting grid readiness, balancing and network upgrades in focus, although not all projects in the pipeline will be built.
Transmission operator Elektroprijenos BiH is tracking applications for roughly 13.5 GW of solar and 4.6 GW of wind capacity. Bosnia and Herzegovina had around 5,547 MW of installed generation at the end of 2025, including conventional plants, renewables and industrial generation.
Grid constraints and balancing
The size of the development queue is already creating planning pressure. Bosnia and Herzegovina’s Independent System Operator, NOSBiH, has warned that the existing grid is not prepared for such a rapid expansion of variable generation.
NOSBiH identified congestion and increasingly complex system operation as central risks for 2027-2036. It has also reported deteriorating ancillary-service quality, making balancing an immediate concern.
Additional renewable output from distribution networks in Bosnia and neighboring systems could complicate voltage control and cross-border flows, adding pressure to the grid and its operation.
Storage and network upgrades
Battery storage is emerging as a practical near-term response while larger transmission upgrades are developed. Systems could absorb excess electricity during periods of high solar and wind output, release it when generation falls and provide balancing services.
Regulatory changes adopted in late 2025 established a basis for a battery-storage market by allowing battery energy storage systems to connect directly to the national transmission network.
The commercial opportunity is shifting from renewables alone towards projects combining generation, storage, balancing and grid capacity. Investor interest remains strong, but connection availability, project economics and the pace of network modernization are key constraints. The proposed projects could also affect cross-border flows involving neighboring systems.
