Electric power generation

FILE - These undated file photos released by the Weber County Sheriff's Office show Jacob Kingston, left, and Isaiah Kingston. Two executives of a Salt Lake City biodiesel company linked to a polygamous group are pleading guilty to charges filed in a $511 million tax credit scheme. Court documents made public on Friday, July 19, 2019, show Jacob Kingston and Isaiah Kingston with the company Washakie Renewable Energy have pleaded guilty to charges including money laundering, mail fraud and conspiracy. (Weber County Sheriff's Office via AP, File)

FILE - In this Feb. 14, 2017, file photo, a rooftop is covered with solar panels at the Brooklyn Navy Yard in New York. The Manhattan skyline is at top. A new law signed Thursday by New York Gov. Andrew Cuomo sets the nation's most aggressive targets for reducing carbon emissions and is intended to drive dramatic changes over the next 30 years. It calls for all the state's electricity to come from renewable, carbon-free sources such as solar, wind and hydropower. Transportation and building heating systems would also run on clean electricity rather than oil and gas. (AP Photo/Mark Lennihan, File)

In this Tuesday, July 16, 2019, drone photo released by the University of Alaska Fairbanks and Alaska Center for Energy and Power, Gov. Mike Dunleavy, center rear, poses for photos in front of a Riv-Gen Power System turbine on the bank of the Kvichak River in Igiugig, Alaska. A tiny Alaska Native village is adopting an emerging technology to transform the power of a local river into a renewable energy source. (Amanda Byrd/ University Alaska Fairbanks and Alaska Center for Energy and Power via AP)

FILE - In this March 22, 2019 file photo, the construction site of Vogtle Units 4 at the Alvin W. Vogtle Electric Generating Plant is seen, Friday, March 22, 2019 in Waynesboro, Ga. The Nuclear Regulatory Commission will look at cutting back on inspections of the country’s nuclear reactors. Staff recommendations made public Tuesday would reduce the time and scope of annual inspections at the nation’s 90-plus nuclear power plants. Some other inspections would be cut from every two years to every three years. (Hyosub Shin/Atlanta Journal-Constitution via AP)

FILE - In this Aug. 18, 2013, file photo, Ali Akbar Velayati, a top adviser to Iran's supreme leader Ayatollah Ali Khamenei, gives an interview to The Associated Press at his office in Tehran, Iran. Velayathi said in a video online Saturday, July 6, 2019, that the Islamic Republic is ready to begin enriching uranium beyond the level set by Tehran's 2015 nuclear deal with world powers. (AP Photo/Ebrahim Noroozi, File)

FILE - In this April 9, 2018 file photo, released by an official website of the office of the Iranian Presidency, President Hassan Rouhani listens to explanations on new nuclear achievements at a ceremony to mark "National Nuclear Day," in Tehran, Iran. As Iran prepares to break through limits set by its 2015 nuclear deal with world powers, each step narrows the time its leaders would need to have enough highly enriched uranium for an atomic bomb -- if they chose to build one. By Thursday, June 27, 2019, Iran says it will have over 300 kilograms of low-enriched uranium in its possession, which would mean it had broken out of the atomic accord. (Iranian Presidency Office via AP, File)

United Nations Secretary General Antonio Guterres, right, follows the UAE Youth Minister, Shamma Al Mazrim as they take the stage at the opening ceremony of the United Nations climate change summit in Abu Dhabi, United Arab Emirates, Sunday, June 30, 2019. (AP Photo/Kamran Jebreili)

In this photo taken Monday, June 24, 2019, one of the inhabitants of a futuristic three-storey floating dairy farm moored in Rotterdam harbour, Netherlands. The floating farm has one robot that milks the cows, another that automatically scoops up the manure, and a roof designed to collect rain water, making it a sustainable inner-city producer of dairy foods aimed at feeding the increasing populations within world cities according to the small holding farmer Peter van Wingerden.(AP Photo/Mike Corder)

European Commission President Jean-Claude Juncker, right, and European Council President Donald Tusk, left, are escorted by Japanese Prime Minister Shinzo Abe prior to their working lunch on the sidelines of the G20 Summit at the International Exhibition Center in Osaka, Japan, Thursday, June 27, 2019. (Franck Robichon/Pool Photo via AP)