This June, New York City’s government and utility urged households to conserve electricity during an extreme heat wave with temperatures reaching 100 degrees F. People were asked to set air conditioners to 76 degrees, to avoid using more than one air conditioning unit, and to delay using electricity-hungry appliances during peak cooling hours.
The big concern is that when every air conditioning unit is running at full blast, electricity demand can exceed total generating capacity and force the utility to implement rolling blackouts. These rolling blackouts avoid a total system failure but leave people without access to cooling and other electronics as temperatures reach dangerous levels.
As temperatures peak in the United States during the coming weeks, utilities and city governments may follow suit with similar requests for voluntary conservation. Voluntary requests for conservation in the United States are part of the standard energy emergency playbook and go back at least to President Carter’s request for Americans to reduce heating temperatures during the 1977 energy crisis.
So, do voluntary conservation requests work to save energy and prevent blackouts?
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Written by: Dylan Brewer, Faculty Affiliate, EPIcenter & Assistant Professor, School of Economics, Georgia Tech
