Zelestra’s 300 MW, four‑hour battery system in Ferrara boosts Italy’s grid flexibility for rising renewable output
Executive summary: Zelestra announced a 300 MW, four‑hour battery energy storage system to be built in Ferrara, Italy, intended to provide grid flexibility for integrating growing renewable generation. The project adds significant storage capacity to Italy’s transmission network, helping to balance variable solar and wind output and reduce curtailment.
Who is involved: Zelestra (project developer), Italian grid authorities overseeing interconnection and permitting, and Italian regulators responsible for energy storage approvals.
Likely next: Pending permitting and grid interconnection approvals, construction is expected to commence in the second half of 2026, with commissioning targeted for 2027.
Zelestra has unveiled plans for a 300 megawatt battery storage facility with four hours of duration near Ferrara. The installation is intended to supply the Italian transmission network with fast‑acting flexibility to accommodate higher shares of solar and wind power. By adding utility‑scale storage, the project addresses a growing need for grid‑balancing resources as Italy pursues its 2030 decarbonisation targets.
Timeline
- — A Ferrara maxi progetto del gruppo Zelestra: 300 MW di potenza (Il Sole 24 Ore — Economia)
Analysis — what this means
Sectors affected
- Utility‑scale battery storage
- Italian electricity grid
- Renewable energy integration
Key entities
Sources
- A Ferrara maxi progetto del gruppo Zelestra: 300 MW di potenza — Il Sole 24 Ore — Economia