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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.
  • Load Shedding
    An almost instantaneous cutting of power to customers because demand for electricity has outstripped supply.
  • 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.

Full Glossary

FAQs

  • Q: How long would a voltage reduction last?

    The reduction would last until ISO New England can achieve a balance between capacity and demand. If voltage reductions are necessary, they usually occur between 12:00 p.m. and 8 p.m. 

     

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