Hard-Rock Caverns

WSP has the experience and expertise to support hard-rock storage cavern projects at every stage, including feasibility, engineering, site preparation, drilling management, mining, and cavern conversion and pressure testing. Our flexible design approach allows us to adapt as needed to deal with actual geological conditions and keep the most complex projects on track.


WSP has designed and constructed the majority of mined energy storage caverns in the U.S., in various rock formations. Learn more from our senior project engineer Frank Jurica.