Haugland Energy provided turnkey installation of the East Hampton Battery Storage Facility, along with site work to include foundations, building and commissioning support. Construction began in January 2018; despite a winter rife with extreme cold temperatures, snow and freezing rain, the facility was energized on August 1, 2018, marking a successful completion of the demanding project.

The facility has a 5-megawatt capacity, with the ability to power approximately 5,000 homes, providing as much as eight hours of critical back-up power to the electrical grid. Drawing power from the grid during off-peak hours, the facility stores energy in lithium-ion battery racks to be released during high-demand hours, which is especially vital in the summer months. Storage facilities like this are becoming critical to Long Island as the region takes steps to reshape its energy infrastructure to increase energy storage, renewable energy resources, and energy efficiency.

The battery storage system is owned and operated East Hampton Energy Storage Center, LLC. Haugland Energy is currently working on a second sister facility in Montauk, NY, which is scheduled to be completed by the end of the year.

East Hampton Battery Storage Facility