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Routine voltage reduction test planned for March 6

February 22, 2018

The IESO will perform a routine voltage reduction test on Tuesday, March 6. Voltage reductions are tested every 18 months to simulate emergency actions available to the IESO to maintain system reliability. These tests also give consumers an opportunity to test equipment and processes in advance of a real-time, unplanned voltage reduction.

A three per cent test will occur between 9:00 and 10:00 EST followed by a five per cent test between 13:00 and 14:00 EST. The results of these tests will be used to analyze and update the IESO's emergency preparedness procedures.

Electricity consumers should be unaffected during the tests as voltages will remain within specified industry standards. Consumers with questions or concerns about the test should contact their local distribution company.

More information on voltage reduction tests is available here.

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