IESO to Conduct Routine Voltage Reduction Test Tomorrow

TORONTO, July 22, 2013 /CNW/ - The Independent Electricity System Operator (IESO) will conduct a routine voltage reduction test on Tuesday July 23, 2013 as part of mandatory testing of its emergency operating measures. This test will have minimal or no noticeable impact on the public at large.

Voltage reductions lower demand quickly and minimize the likelihood of service interruptions, helping the IESO maintain the reliability of Ontario's power system during contingencies.

A three per cent reduction is expected to occur from 10-11am EDT. A five per cent reduction is planned for 2-3pm EDT. The tests are normally conducted every 18 months.

Voltage reduction tests have three key purposes:

  1. To determine how much power can be reduced through the two levels of reduction.
  2. To identify equipment problems so they can be addressed.
  3. To help keep IESO and market participant staff familiar with procedures, and identify any deficiencies in the procedures that may need correction.

Consumers with questions about the test should contact their local distribution company. A list of local distribution companies is available at

More information about voltage reductions is available on the IESO website at or by contacting IESO customer relations at 1-888-448-7777.

The IESO is responsible for managing Ontario's bulk electricity power system and operating the wholesale market. For more information, please visit

SOURCE: Independent Electricity System Operator

For further information:

Martine Holmsen


Jetez un coup d’œil sur nos forfaits personnalisés ou créez le vôtre selon vos besoins de communication particuliers.

Commencez dès aujourd'hui .


Remplissez un formulaire d'adhésion à CNW ou communiquez avec nous au 1-877-269-7890.


Demandez plus d'informations sur les produits et services de CNW ou communiquez avec nous au 1‑877-269-7890.