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Grand Ridge Energy Storage

Illinois, USA


Communications & SCADA, Energy Storage

Project Highlights

  • At start of commercial operation, it was the second largest lithium-ion project in the world.
  • Provided complete electrical and civil design to all three BESS systems.
  • Frequency Regulation service to PJM
  • Enables wind farm to provide smooth power flow to the grid
  • Up to 35 MW of capacity

The Grand Ridge Battery Energy Storage System is located in La Salle County, about 80 miles southwest of Chicago, IL.
This award-winning facility was recognized by Energy Storage North America (ESNA) for the 2015 Innovation Award for Centralized Storage and by Power Engineering and Renewable Energy World Magazine’s 2015 Project of the Year Award for Best Renewable Project.

Grand Ridge is the largest renewable energy center in the world with wind, solar and advanced-energy storage in one location. The 32 MW Battery Energy Storage System (BESS) began commercial operation as the second-largest lithium project in the world. The primary use is for fast frequency regulating services in the PJM Market. In addition to the 32 MW storage unit, Grand Ridge houses a 210 MW wind farm; a 20 MW solar project; a second, 1.5 MW energy storage project, and a third, 3 MW storage project.
ECI was the consulting engineer for all three (3) Grand Ridge BESS systems and wind farm for complete electrical and civil design. ECI’s scope of services included:

  • BESS System Integration
  • SCADA / Control / Communication Design
  • Civil Design
  • General Arrangement and Maintenance Access
  • Medium Voltage Design and Protection
  • Grounding and Surge Protection Design
  • Schematic and Wiring Design


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