EPA: How EPA carbon rules will play out at the state level. (New York Times)

ALSO: The EPA’s proposal has some calling for Congress to fund carbon capture initiatives, which the agency isn’t planning to require for existing power plants. (ClimateWire, The Hill)

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NUCLEAR: A string of plant closures signals broader trouble for the nuclear industry. (InsideClimate News)

CLIMATE: A new study projects a sharp increase in thunderstorms in the central and eastern U.S. by mid-century. (New York Times)

SOLAR: New, low-cost solar panels are available for Detroit-area residents, and a Chicago conference explores the ways the solar boom has disrupted utilities. (CBS Detroit, Forbes)

GRID: How a deluge of smart-meter data can benefit customers — if utilities figure out how to harness it. (Wall Street Journal)

OHIO: State Sen. Bill Seitz plans to introduce legislation tomorrow that would weaken the state’s renewable energy law. (Columbus Dispatch)

OIL: More than 27,000 gallons of oil have spilled into the South Platte River following major flooding in Colorado, but experts say millions of gallons of sewage are a larger threat; and a Minnesota refinery will reduce its output while repairing damage from a fire that caused $10 million in damage. (Associated Press, Minneapolis Star Tribune)

NATURAL GAS: A planned Ohio refinery will convert natural gas into diesel fuel. (Columbus Dispatch)

COAL: The Sierra Club pressures Xcel Energy to retire two units at its largest Minnesota coal plant. (Minnesota Public Radio)

FRAC SAND: A Minnesota city faces another delay in working with state officials to develop an air quality monitoring program. (Winona Daily News)

COMMENTARY: The real threat to the coal industry is not regulation, but uncertainty. (Breaking Energy)