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Duke Energy Offers Tips to Save Energy, Money as Temperatures Plunge in Indiana - Eagle Country 99.3
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Duke Energy's Store Sells Sort-Of-Free Lightbulbs | WFAE 90.7 - Charlotte's NPR News Source
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What went wrong at Duke Energy? – Carolina Forward
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Simply Conserve 6 watt Globe LED (6 pack) | Duke Energy Online Savings Store
