About CONVEX
In service since January 1, 1964, CONVEX (Connecticut Valley
Electric Exchange) is an organization of Connecticut and western
Massachusetts utilities that joined forces through the New England
Power Pool and its former dispatching arm, NEPEX (New England Power
Exchange). CONVEX presently operates as the 2nd largest (in load
served) Local Control Center (LCC) in New England, under the
umbrella of the New England Regional Transmission Operator known as
ISO-NE (Independent System Operator - New England).
As a Transmission Operator, CONVEX’s primary function is to ensure the safe,
reliable and economic operation of the CONVEX transmission system, 24 hours a
day, 365 days a year, no matter what the conditions. This responsibility is
carried out in conjunction with ISO-NE by evaluating, coordinating, and
responding to planned and dynamic changes in the connectivity of the
transmission system, ensuring that reliable service to the electrical
distribution system is maintained at all times. CONVEX also monitors energy
demands on the system and their impact on power quality throughout the CONVEX
system, and performs dispatching functions, including the implementation of
emergency actions when necessary, to ensure power quality remains within
acceptable tolerance at all times.
The heart of CONVEX is its Operations Center. It features a 10 foot-high, 52
foot-long rear-projection "wiring diagram" of the entire CONVEX system that
indicates all generation stations, substation and transmission lines. A similar
diagram for each individual station and transmission line can be called up for
display at each of the dispatcher consoles. Using this technology, CONVEX staff
can clearly recognize and react to any system problems as well as monitor the
status of maintenance work taking place anywhere on the CONVEX system. The
continuous flow of information provides a real-time picture of all major
generation stations within the system, as well as of neighboring systems that
may be supplying or buying power.
CONVEX member companies are:
Northeast Utilities
- The Connecticut Light and Power Company (CL&P)
- Western Massachusetts Electric Company (WMECO)
The United Illuminating Company
Connecticut Municipal Electric Energy Cooperative:
- Groton Utilities
- Bozrah Light and Power
- Jewett City Electric Light Plant
- Second (South Norwalk) Taxing District
- Third (East Norwalk) Taxing District
- Norwich Public Utilities
- Town of Wallingford Dept. of Public Utilities
- Mohegan Tribal Utility Authority
Chicopee Electric Light
City of Holyoke Gas and Electric Department
Holyoke Water Power Company
Westfield Gas and Electric
Town of South Hadley Electric Department
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