Electric power generation

FILE - This June 3, 2014, file photo shows a panoramic view of the Paradise Fossil Plant in Drakesboro Ky. President Donald Trump's vow to save the coal industry will be tested this week when a utility board he appoints weighs whether to close a coal-fired power plant in Kentucky whose suppliers include a mine owned by one of his campaign donors. An environmental assessment by the Tennessee Valley Authority recommends shuttering the remaining coal-fired unit at the Paradise Fossil Plant in Muhlenberg County. The board could vote on Thursday, Feb. 14, 2019. (AP Photo/Dylan Lovan, File)

Senate Majority Leader Mitch McConnell, R-Ky., walks to the chamber on the morning after House and Senate negotiators worked out a border security compromise hoping to avoid another government shutdown, at the Capitol in in Washington, Tuesday, Feb. 12, 2019. (AP Photo/J. Scott Applewhite)

FILE - In this Jan. 19, 2019, file photo, U.S. Rep. Alexandria Ocasio-Cortez, (D-New York) waves to the crowd after speaking at Women's Unity Rally in Lower Manhattan in New York. Democrats including Ocasio-Cortez of New York and veteran Sen. Ed Markey of Mass. are calling for a Green New Deal intended to transform the U.S. economy to combat climate change and create jobs in renewable energy. (AP Photo/Kathy Willens, File)

In this Feb. 7, 2019 photo, Speaker of the House Nancy Pelosi, D-Calif., talks with reporters during her weekly news conference, on Capitol Hill in Washington. Republicans have vilified Nancy Pelosi for years as a San Francisco liberal and now seek to portray her as a captive of resurgent left wingers in her Democratic Party. But in her early moves so far as House speaker, Pelosi is displaying her pragmatic streak. (AP Photo/J. Scott Applewhite)

Joe Kaeser, CEO of German industrial conglomerate Siemens, speaks during the company's annual press conference in Munich, Germany, Wednesday, Jan. 30, 2019. Germany's Siemens AG said Wednesday net profit fell by half in the most recent quarter, to 1.12 billion euros ($1.28 billion), as the company saw higher taxes and falling demand for its big-ticket power turbines. (AP Photo/Matthias Schrader)

FILE---In this Jan.6, 2019 file photo water vapour rises from the cooling towers of the Joenschwalde lignite-fired power plant of Lausitz Energie Bergbau AG (LEAG) in Brandenburg, Germany. (Patrick Pleul/dpa via AP)

FILE - In this July 27, 2018, file photo, the Dave Johnson coal-fired power plant is silhouetted against the morning sun in Glenrock, Wyo. The Trump administration on Friday targeted an Obama-era regulation credited with helping dramatically reduce toxic mercury pollution from coal-fired power plants, saying the benefits to human health and the environment may not be worth the cost of the regulation. The 2011 Obama administration rule, called the Mercury and Air Toxics Standards, led to what electric utilities say was an $18 billion clean-up of mercury and other toxins from the smokestacks of coal-fired power plants. (AP Photo/J. David Ake, File)