polar vortex http://wfae.org en Duke Asks Customers To Conserve During Chill http://wfae.org/post/duke-asks-customers-conserve-during-chill <p>Duke Energy is urging customers to conserve energy during the cold because it’s worried that customers could cause blackouts or brownouts by using too much energy.</p><p></p><p></p><p> Wed, 08 Jan 2014 03:07:22 +0000 Ben Bradford 42543 at http://wfae.org Duke Asks Customers To Conserve During Chill