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.

Learn more 

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

New England Load Graph

Connecticut Load Graph

CONVEX Load Graph

UPCOMING CLASSES

View All Classes

GLOSSARY

  • 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.
  • Rolling Blackouts
    Temporary interruption of electrical service. ISO New England would implement rolling blackouts only if and when New England's electrical system is unable to meet heavy peak demands because of an extreme deficiency in the power supply. By temporarily disconnecting electrical circuits on a rotating basis, a majority of customers have power, inconvenience is minimized and a more serious widespread problem is averted. Each rotation is of a specific duration, usually no longer than a few hours, but it could take longer in some locations due to the manual nature of the operation.
  • Power Watch
    Advisories to be announced when conditions are such that further steps to manage capacity could affect the public.

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.

More FAQs