Compressed Air Energy Storage

Thermal mechanical long-term storage is an innovative energy storage technology that utilizes thermodynamics to store electrical energy as thermal energy for extended periods. 

Siemens Energy Compressed air energy storage (CAES) is a comprehensive, proven, grid-scale energy storage solution. We support projects from conceptual design through commercial operation and beyond. Our CAES solution includes all the associated above ground systems, plant engineering, procurement, construction, installation, start-up services and long term service support.

As renewable power generation from wind and solar grows in its contribution to the world’s energy mix, utilities will need to balance the generation variability of these sustainable resources with demandfluctuations. Power-generation operators can use compressed air energy storage (CAES) technology for a reliable, cost-effective, and long-duration energy storage solution at grid scale. 

Siemens Energy CAES improves utilization of renewable energy resources by absorbing GW-hours of energy that would otherwise be curtailed and provides grid balancing and reserve services with lower fuel usage and carbon footprint than other controllable resources.