Battery storage can indirectly improve the economics and CBAM readiness of Serbian renewable-energy projects by making low-carbon electricity more usable and predictable for exporters. The EU Carbon Border Adjustment Mechanism (CBAM) definitive period began in 2026, increasing the relevance of carbon costs for covered exporters. Storage does not by itself reduce embedded emissions or create a CBAM exemption.
Exporters in the steel, aluminium and cement sectors may benefit commercially from a cleaner and more manageable electricity procurement profile. Storage can help align renewable electricity use with predictable consumption patterns and reduce reliance on high-carbon grid purchases during selected hours.
However, storage’s compliance value depends on the applicable CBAM methodology and the electricity evidence chain, not simply on owning a battery. Metering, contractual allocation, guarantees of origin where relevant, and verifiable consumption data remain essential. The business case combines lower exposure to volatile market purchases, better renewable capture and a more controlled electricity evidence package for carbon reporting.
Hourly price risk and project example
Serbia’s renewable generation is becoming more exposed to hourly price and capture risk, while industrial users continue to face expensive evening periods. SEEPEX recorded Serbia’s first negative day-ahead electricity price in May 2026, adding a market signal as producers and users face differing conditions across hours.
Solar-plus-storage can shift some renewable output to hours when factories consume electricity and grid electricity is more expensive. The Nocaj project, cited as an example of the market’s direction, has 270 MWp of solar capacity and 72 MWh of storage.
The Nocaj battery is not large enough to make the solar plant fully firm, but it can improve output shaping and reduce imbalance in a bilateral supply arrangement. For exporters, storage can strengthen the energy-management side of CBAM readiness; it does not replace the underlying emissions rules. Its compliance value continues to depend on the applicable methodology and evidence chain, rather than battery ownership alone.