Helleniq Energy brings 100-MW, 200-MWh battery storage project online in Thessaloniki

• Helleniq Energy brought its first utility-scale battery storage project into operation at its Thessaloniki industrial site on Oct. 8, 2026.
• The BESS has 100 MW installed capacity, 200 MWh energy capacity.
• Investment totaled about EUR 50 million, expanding the group’s power business beyond renewables generation into grid-support storage.
• The system targets at least one full daily charge-discharge cycle, storing more than 200 MWh per day.
• A second storage project in Florina is expected to complete next, sized at 50 MW with 200 MWh capacity.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Helleniq Energy Holdings SA published the original content used to generate this news brief on October 08, 2026, and is solely responsible for the information contained therein.