Fortis Energy is advancing the development of a utility-scale 104 MWh BESS (Battery Energy Storage System) at the 80 MWp Oslomej Solar Power Plant, targeting full integration in 2026. Completed in 2023 in North Macedonia, Oslomej SPP stands as a landmark in the region's green transition, having transformed a former coal mine site into a clean energy hub with an annual generation potential exceeding 112 GWh. The upcoming BESS integration is set to elevate its performance even further.
Design and permitting are currently underway, with preparatory works being planned ahead of construction mobilization. The upcoming BESS integration will further elevate Oslomej's top-tier operational performance, adding a powerful new dimension to an already benchmark solar asset.
The project will be deployed in two sequential 52 MWh phases, with both slated for full operationalization within 2026, bringing the total installed capacity to 104 MWh.
This system will facilitate energy time-shifting, allowing Fortis Energy to capture surplus generation during peak irradiance and discharge it during peak demand intervals. This firming of the power output elevates the Oslomej plant to a resilient, on-demand energy asset, further reinforcing its role as a model for green energy transformation on a repurposed industrial site.