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The U.S. may begin refilling its emergency oil reserve when crude prices dip below $80 a barrel, according to people familiar with the matter.

WASHINGTON — Sharply lower prices for gas and cheaper used cars slowed U.S. inflation in August for a second straight month, though many other items rose in price, indicating that inflation remains a heavy burden for American households.

The national average price of diesel slid 5.1 cents to $5.033 a gallon, according to Energy Information Administration data released Sept. 12.

Hyliion Holdings Corp. announced Jon Panzer joined the company as chief financial officer.

The Pennsylvania Turnpike is jumping into solar energy production to power its maintenance and office buildings with a long-term goal: using solar-generated power to electrify portions of the toll road so electric vehicles can charge as they travel.

President Joe Biden is poised to sign an executive order Sept. 12 to help expand U.S. biomanufacturing and reduce reliance on China.

RALEIGH, N.C. — A North Carolina-based semiconductor company announced Sept. 9 it will build a $5 billion manufacturing plant in its home state to produce silicon carbide wafers, which is emerging as a favored part for renewable energy products and electric vehicles.

Hydrogen is rising as an eventual clean alternative option for fueling trucks but the feedstock used to produce it — by steam methane reforming, using coal or with solar panel-generated electricity — affects its carbon impact.

Officials within President Joe Biden’s administration are hunting for ways to head off a feared spike in oil prices later this year, including the possibility of an additional release from the nation’s emergency crude reserves.

Nikola Corp. won a court order preventing founder Trevor Milton from using certain company communications in his defense against criminal charges that he lied about the company’s products to mislead investors and prop up the stock.