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WASHINGTON — The Environmental Protection Agency on Sept. 6 denied a request by Cheniere Energy, a leading U.S. producer of liquefied natural gas, to exempt two Gulf Coast plants from a federal air pollution rule.

The national average price of diesel dropped 3.1 cents to $5.084 a gallon, according to Energy Information Administration data on Sept. 5.

Bosch Group will invest $200 million to build fuel cell stacks in Anderson, S.C., its first such effort in the U.S.

DETROIT — General Motors said Aug. 31 that a new electric vehicle battery plant built in Ohio has started producing cells, which could help customers get federal tax credits.

TOKYO — Toyota is investing $5.6 billion in Japan and the U.S. to boost production of batteries for electric vehicles, the Japanese automaker said Aug. 31.

Nikola Corp. made announcements regarding leadership changes and its proceeding with acquiring an energy-storage technology company.

Diesel’s nine-week run of declines abruptly ended as trucking’s main fuel rose 20.6 cents a gallon to put the national average cost back over $5, according to Energy Information Administration data released Aug. 29.

West Michigan International announced the grand opening of Michigan’s first public electric commercial vehicle charging station at its Kalamazoo location.

New Jersey is cutting an automotive fuel tax by 1 cent per gallon after consumer demand was higher than projected, state Treasurer Elizabeth Muoio announced.

PORTLAND, Maine — Diesel and heating oil supplies in the Northeast are more than 50% below the recent average, raising concerns that an extreme weather event could cause supply disruptions, federal officials said.