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About CONVEX

The Connecticut Valley Electric Exchange (CONVEX) operates the electric transmission system in Connecticut and western Massachusetts, serving more than 1.7 million people. CONVEX provides safe and reliable electricity to help boost the economy and quality of life for this thriving region's residential and business customers.

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* Please note that all data is preliminary and is subject to change.

New England Load Graph

Connecticut Load Graph

CONVEX Load Graph

GLOSSARY

  • Power Warning
    Public appeals when an immediate reduction in power usage is necessary to avert overload of the electrical system. Public appeals are made when other efforts (e.g. emergency purchases, voluntary curtailment, contracted curtailment and voltage reduction) have been unsuccessful in bringing supply and demand back into balance.
  • Power Caution
    Notification that electric reserves are lower than normal and steps are being taken by utility personnel to maintain the integrity of the on-line generation and transmission facilities.
  • Conservation Day
    Public appeal to customers to conserve electricity in anticipation of heavy electrical demand and unhealthy air quality conditions, usually due to humid weather.

Full Glossary

FAQs

  • Q: How do you decide which customers should have their electricity cut?

    Groups of circuits in each utility's service area are picked so a certain amount of demand can be eliminated and the electric system can be balanced. The circuits are from a wide area, so small numbers of customers in varied parts of the state would be affected. Utilities attempt to ensure that facilities such as hospitals, airports, sewage treatment plants and specific sections of large cities served by networked circuits are exempt from these blackouts.

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