About
Founded in 2011, Energiespeicher Riedl is a public headquartered in Wien, Austria specializing in Hydro, Energy Storage.
The Energiespeicher Riedl is a modern pumped-storage hydroelectric facility designed as an extension of the existing Donaukraftwerk Jochenstein. The project stores excess renewable energy by pumping water 330 meters upward into an upper reservoir, then releasing it through turbines during high demand. With a planned investment of approximately €400 million, it can supply 50,000 households with CO2-neutral electricity for one week on a single charge. The facility provides grid balancing services, system stabilization, and backup capacity for renewable energy fluctuations. Construction begins October 2025 following receipt of planning approval in September 2025. The project includes ecological measures such as fish migration assistance and habitat restoration along the Danube.
Headquarters
Wien, Austria
Founded
2011
Company Type
Public
Business Models
Value Chain
Industry Memberships
Österreichs Energie