Commercial Battery Storage REV Demonstration Project: Q3 2025 Progress Report

Strategic Insights -

Con Edison's Commercial Battery Storage REV Demonstration Project has made significant progress in its third quarter of 2025, as outlined in the recently released quarterly progress report. The project, which aims to demonstrate the integration of distributed energy storage with transmission and distribution (T&D) support, has completed its customer acquisition, construction, and commissioning phases. The project's partnership with Endurant and Smarter Grid Solutions has been instrumental in its progress, and the project is now moving towards its market participation phase.

Key Takeaways:

  • The Commercial Battery Storage REV Demonstration Project has completed its Phase 1, Phase 2, and Phase 3, with Phase 4, Market Participation, currently underway.
  • The project has achieved significant milestones, including the completion of customer acquisition, construction, and commissioning of the Caddell, City Island, and Woodside sites.
  • Endurant has submitted WDS Tariff Election Forms and Material Modification Requests, with Con Edison currently assessing the need for system modifications.
  • The project has identified lessons learned, including the importance of engagement with the City and collaboration with NYISO to ensure smooth project execution.
  • The project has also encountered issues, including Endurant's experience of Allowable Unscheduled Outage and Failures to Dispatch at the City Island and Woodside batteries.

Statistics:

  • Budget: $18.8M
  • Q3 2025 Spend: Filed Confidentially
  • Cumulative Spend: Filed Confidentially (on budget)
  • Project Start Date: January 2017
  • Project End Date: March 2027
  • Failure to Dispatch instances at City Island: 12 (June-August)
  • Failure to Dispatch instances at Woodside: 6 (June-July)
  • NYISO Pilot Program participation: underway

Sources:

  • New York State Public Service Commission (10/31/2025), REV Demonstration Project: Commercial Battery Storage Q3 2025 Quarterly Progress Report
  • https://documents.dps.ny.gov/public/common/search.html