Connecticut Siting Council

Due to the personally identifying information contained in written limited appearance statements from the public, any written limited appearance statements that are received by the Council for any matter are available to be viewed at the Council’s office Monday through Friday from 8:30 a.m. to 4:30 p.m. or available to be sent via e-mail upon request. Please allow adequate time for processing.

Long Island Sound Resource and Use Inventory/Long Island Sound Blue Plan Survey

PETITION NO. 1587 – Endurant Energy Scale Microgrid Solutions Operating, LLC SMS CT MG11B, LLC petition for a declaratory ruling, pursuant to Connecticut General Statutes §4-176 and §16-50k, for the proposed construction, maintenance and operation of a 4.9-megawatt AC battery energy storage facility located at 350 Knotter Drive, Cheshire, Connecticut, and associated electrical interconnection.

 

PETITION (recd. 08/11/23)
Petition Filing, 08/11/23
Appendices
Appendix A - Technical Data Sheets and Renderings
Appendix B - Local Outreach Log
Appendix C - Facility Maps
Appendix D - Public Notice
Appendix E - Safety Data Sheets for Hazardous Materials
Appendix F - Natural Diversity Database Report and NDDB Map, USFWS Report
Appendix G - Sound Assessment
Appendix H -  National Register of Historic Places Map 
Appendix I - FAA Notice Criteria Tool Reports
Appendix J - Emergency Response Plan

 

PROCEDURAL CORRESPONDENCE
Council Letter to Town of Cheshire, 08/15/23
Council State Agency Comment Memorandum, 08/15/23
Council Interrogatories to Petitioner, Set One, 09/26/23
Council Set Date for Decision, 09/28/23
Request for Extension to Respond to Council Interrogatories, Set One, and Council Extension Approval, 10/17/23
Council Interrogatories to Petitioner, Set Two, 11/14/23

 

SCHEDULE
Schedule, 08/14/23
Schedule, 09/26/23
Schedule, 09/28/23
Schedule, 11/14/23

 

SERVICE LIST
Service List, 08/11/23
Service List, 09/13/24
Service List, 04/22/25

 

PETITIONER - Endurant Energy
Petitioner Submission of State Historic Preservation Office's Comments, 09/05/23
Petitioner Responses to Council Interrogatories, Set One, 10/20/23
Petitioner Submission of Department of Energy and Environmental Protection Comments, 10/24/23
Petitioner Responses to Council Interrogatories, Set Two, 11/29/23

 

DECISION
Council Decision and Staff Report, 12/21/23
Notice of Transfer of Declaratory Ruling and Council Acknowledgement, 09/13/24
Notice of Transfer of Declaratory Ruling and Council Acknowledgement, 04/22/25
Compliance with Conditions Nos. 2, 3, 4, 7, and 9. Request for Project Changes and Council Decision, 11/3/25
Compliance with Condition No. 3 and Council Acknowledgement, 11/05/25
Corrected Acknowledgement of Compliance with Condition No. 3, 11/17/25