AC use to spike, could strain power grids; People flock to Lake Crabtree as extreme heat builds

MORRISVILLE, N.C. (WTVD) -- Even before hotter weather arrives, crowds are already flocking to outdoor spaces to stay cool, with parks and lakes seeing heavy use on Sunday as Duke Energy prepares for increased demand in the days ahead.

At Lake Crabtree, conditions were calm ahead of the expected heat wave, but visitors were already taking advantage.
"I think this weekend is not too bad," said Dean Ding of Raleigh.

Long lines formed for boat rentals after record crowds over the past two weekends. Many said they were drawn by the chance to cool off on the water.

"We just come out here for the canoes and kayaks and everything, we just love being out on the water," said Paras Khatri of Morrisville.

With the Fourth of July holiday approaching, forecasters expect record heat, prompting more people to look for ways to stay cool both outdoors and inside their homes.

"We're gonna open the refrigerator and the freezer and let the cold air come in," Khatri said. "I just turn on the fans and maybe go outside," added Aaradhya Naik of Morrisville.

Hot weather impact on power grids

Duke Energy officials said increased air conditioning use could strain the electrical grid as temperatures rise.

"And that means ramping up power plants, ramping them down when we don't need them. And that's what we'll be doing all week," said Jeff Brooks of Duke Energy. "Our system planners are looking at what the demands are going to be. So that we can activate the power plants we need, generate the power that's necessary, and then deliver it reliably to your house."

The company recommends customers check air filters, close blinds on sunny sides of their homes, and avoid using ovens or stoves to reduce electricity use.

As for thermostat settings, Brooks said there is no single answer.

"You know, it's been a point of much debate over the years, but it stays about 74 during the day," he said. "If I go to work, it'll bump up usually a couple more degrees, because if I'm going to be gone for seven or 8 hours, it's cheaper to bring that back down when I come home than leave it up all day in the evening."

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Duke Energy said it is closely monitoring forecasts and believes it has sufficient supply to meet demand. Officials added the company could purchase additional power from out of state if necessary.

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