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The controversial oil and gas extraction process known as fracking could take its second-to-last step toward legalization in North Carolina on Friday. A state body meets at 9 a.m. to finalize the rules that will govern fracking.

Mark Rumsey / WFAE

Duke Energy has proposed moving millions of tons of coal ash from waste ponds and using it to fill in old mines. So far, the plan has drawn support from frequent adversaries of the utility.

Duke says it has the perfect place to put about three million tons of ash: in old clay mines in Moncure and Sanford, a few dozen miles southwest of Raleigh. Right now, they are just open pits says Duke Energy spokeswoman Jennifer Jabon.

City of Charlotte

Most construction in Charlotte for the next three years will not have to include environmental protections against one of the state’s biggest sources of water pollution—stormwater.

Ben Bradford / WFAE

North Carolina environmental regulators have ordered Duke Energy to redo the first step in the process of cleaning up its coal ash ponds around the state. The company has to measure contamination from the ponds, and state regulators say their plans to do so are inadequate.

Duncan McFadyen

A new company says it will turn the former Philip Morris plant in Concord into a high tech manufacturing facility. Executives from Alevo made the announcement Tuesday. They will use the space to build large-scale battery arrays that, they say, will “redefine energy.”

Duke Energy/Flickr

North Carolina utilities are paying less in taxes to due to the legislature’s tax overhaul last year. The NC Utilities Commission says companies no longer have to pass on those savings to customers but Duke Energy still plans to.

Duke Energy

Opposition is already shaping up to the Environmental Protection Agency rule that, if enacted, would be the first to limit how much carbon the nation’s existing power plants can emit into the air. At the Making Energy Work conference in Uptown Charlotte on Thursday, North Carolina utilities gave an early glimpse of the grounds on which they oppose the rule.

“We’re not sure that it can be implemented as written,” Duke Energy senior vice president Dwight Jacobs said during a panel discussion at the event.

Ben Bradford / WFAE

Electric cars were largely novelties until Tesla introduced its Roadster in 2008. Now, a few small start-ups are trying to repeat Tesla’s success in another sector of the electric vehicle industry. They’re building trucks, hoping to sell them en masse to government and business fleets.

Magnum Energy

The nation’s largest wind farm in Wyoming would connect to  one of the largest energy storage facilities in Utah to power Los Angeles, in a proposal announced Tuesday by four companies, including Duke Energy. The project’s scale is more akin to a nuclear plant.

Gabriel Rocha / Flickr

Fluoridated water reduces cavities, as scientific studies have repeatedly shown. Yet for decades, public health and government officials have had to defend fluoride in public drinking water, against at-times outlandish conspiracy theories. It’s a battle currently playing out in Charlotte. WFAE’s Ben Bradford examines why we have trouble believing the science.