Residential Energy Storage: Results from a Four-Cooperative Pilot Program

Four distribution coops saw a need to better understand the capabilities of residential scale energy storage and, more importantly, to get some hands-on experience. The four coops procured batteries from Sonnen. This will be the first opportunity to describe the predicted vs. actual results, including installation experiences, discharge rates, roundtrip efficiencies and interfaces to other systems.


  • Brad Seibert – Vice President, Next Generation Energy – NRTC
  • Olaf Lohr Sr. – Utility Account Manager – Sonnen
  • Kent Whitcomb – Engineering Technician – MiEnergy/STAR Energy Services LLC
  • Paul Gillis – Energy Management Engineer III – Dairyland Power Cooperative