Iberdrola builds first large-scale US battery — Shutler (41 MW / 82 MWh)
- Shutler has an installed power capacity of 41 MW and a storage capacity of 82 MWh.
- The project is sited in Gilliam County, Oregon, and is scheduled to come on stream in 2027.
- It will support grid stability on the US north-west Pacific coast where Avangrid owns 3,000 MW of generation capacity.
- The battery will store energy during low demand or high renewable output and discharge to balance supply and demand in real time.
Project details
Iberdrola is constructing its first battery facility in the United States: the Shutler project in Gilliam County, Oregon. The installation will have an installed capacity of 41 MW and a storage capacity of 82 MWh.
Grid role and purpose
Shutler is intended to strengthen the stability of the electricity system on the north-west Pacific coast, enabling energy to be stored during periods of low consumption or high renewable generation and released when required to optimise the system and provide real-time balance between supply and demand.
Context and timeline
The project sits alongside other Avangrid renewable facilities in the area and complements the Group’s existing US portfolio, where Avangrid already has 3,000 MW of generation capacity. Shutler is scheduled to come on stream in 2027 and forms part of Iberdrola’s push to implement storage solutions that facilitate renewable integration and improve system resilience amid growing electrification.
Source: Iberdrola
