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Middletown-Norwalk
LI Replacement Cable
Glenbrook Cables
Waterford Substation
Bethel-Norwalk
Northeast Connecticut Reliability Project
New England East-West Solution (NEEWS)
Project Description
Contact Information
Greater Springfield Reliability Project (GSRP)
Interstate Reliability Project (Interstate)
Central Connecticut Reliability Project (CCRP)
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 New England East-West Solution (NEEWS)
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New England East-West Solution (NEEWS) is four
related transmission projects developed by a working group of
planners from NU, National Grid and ISO New England
to solve five transmission problems identified by ISO-NE in its
regional planning process:
- Limitations to east-west movement
of electricity on the New England power grid
- Weaknesses in transmission around Springfield, MA, a major interstate
transmission hub
- Limitations to moving electricity across Connecticut,
Massachusetts and Rhode Island
- Rhode Island’s dependence on single
transmission lines or autotransformers for reliability
- Limitations to the power that can flow from east to west within Connecticut
See a video  (539 kbps, Approx. 8 mins, 50 secs.) in which community, business, labor and environmental leaders in Connecticut and Massachusetts explain why NEEWS is needed and the benefits that can be expected.
Learn more about the NEEWS projects in these frequently asked questions (FAQs).  (100KB)
ISO-NE’s planning process considered
these factors:
- Load growth
- Load reduction through energy conservation
- Planned and operating power plants
- Environmental impacts including air quality
- How to maximize regional benefit at the lowest
possible cost
- Support for a competitive market for electricity
ISO-NE determined that ongoing energy conservation efforts, new power plants and new transmission are all needed. The planning process concluded that additional transmission lines were needed to solve the five problems.
FOUR PROJECTS SOLVE FIVE PROBLEMS
ISO-NE, NU and National Grid conducted technical evaluations to evaluate how the 7,000 possible combinations of transmission projects would perform during normal, peak and possible outage scenarios and how those options would support future flexibility. The evaluation identified four transmission projects, which are the best-performing, least-cost range options. The main components of these projects are 345-kilovolt (kV) lines, but they also include upgrades to substations and improvements to the region's 115-kV electric system:
These four projects taken together solve all
of the five problems, will provide stronger interconnections across
Connecticut, Massachusetts, and Rhode Island and allow more power to be
moved between east and west in New England.
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