Reliability Projects
UI's effort to invest in our electric system to meet tomorrow's demands will ensure electricity continues to be as safe and reliable years from now as it is today.
System-wide upgrades to UI’s transmission and distribution equipment is vital to address the increasing demand placed on the Company’s ability to meet customer needs. These projects include upgrading and replacing of aging electric infrastructure, such as transformers and underground cable, and the building of new substations and transmission lines to increase the capacity of the system to meet customers’ increased demand for electricity.
Further, as part of efforts to protect the Connecticut electric grid from outages due to coastal flooding and storm damage and to implement upgrades to the bulk electric system (BES) in general, UI will be mitigating our coastal substations to avoid damage and outages during coastal flood events.
Information on individual projects under construction can be found below.
For more information regarding UI's projects, please call 888.848.3697 or send an email to Outreach@uinet.com.
UI 2024 Reliability and Resiliency Scorecard
In order to provide customers and stakeholders with information relating to our network reliability and resiliency, we have created the attached town level scorecards. Each scorecard contains information on the frequency and duration of outages that a typical customer in each town of our service territory experienced in 2024.
If you have any questions or suggestions in relation to the scorecards please contact: Outreach@uinet.com.
Coastal Substation Flood Mitigation Projects
Visit our website: https://uifloodmitigationprograms.com/
Substation Projects
- Old Town Substation Rebuild
- Pequonnock Substation Rebuild
As part of efforts to protect the Connecticut electric grid from outages due to coastal flooding and storm damage and to implement upgrades to the bulk electric system in general, UI relocated and rebuilt its existing Pequonnock Substation, located at 1 Atlantic Street.
The Project entailed the construction and operation of a new transmission / distribution substation approximately 0.15 mile to the west of the existing substation at 1 Kiefer Street, and the relocation of the existing transmission and distribution lines that connect to the substation. This effort is helping to strengthen the transmission and distribution system in the Bridgeport area, allowing UI to continue providing reliable service to our customers. This project is complete.
Transmission Projects
- Derby Junction to Ansonia 115-kV Transmission Line Rebuild Project
- Fairfield to Congress – This project is currently in the Engineering and Design stage
- Railroad 115kV Rebuild Projects – Milvon to West River (Milford to New Haven), Fairfield to Congress (Fairfield to Congress St. Substation in Bridgeport)
- 1655 Line Optical Ground and Relay Equipment upgrade in North Haven