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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.
  • 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.

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FAQs

  • Q: Could this happen to customers more than once?

    Yes, but it is unlikely. When load shedding occurs, the electric companies would disconnect as many customers as necessary and then restore them when rolling blackouts begin. Rolling blackouts disconnect blocks of customers in rotating sequences and would continue until the utilities are able to bring supply and demand back in balance.

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