URANIUM: The operators of a controversial uranium mine near the Grand Canyon begin staffing up to bring the idled facility back into production for the first time in 30 years. (Arizona Daily Sun) 

NUCLEAR: The U.S. Energy Department is expected to announce Tuesday that California researchers have produced a fusion reaction with a net energy gain, a major breakthrough. (Washington Post)

• Colorado regulators create a working group to craft rules that would address the cumulative impacts of oil and gas drilling. (Colorado Sun)
A California oil and gas company whose well blew out and severely injured a worker this month resisted regulators’ orders in April to cap the well because it was dangerous. (Bakersfield Californian)
Los Angeles releases a strategy to mitigate impacts of the city’s oil extraction phaseout plan by providing displaced workers with new jobs and funding well remediation. (Los Angeles Daily News)

UTILITIES: Colorado investigators still haven’t determined whether the Marshall Fire that destroyed 1,000 homes last December was sparked by utility lines, an abandoned coal mine or something else. (CBS Colorado)

• California’s grid operator publishes a final proposal for a regional extended day-ahead power market aimed at increasing reliability across the West. (Utility Dive)
• Eleven utilities commit to joining a regional resource adequacy program aimed at ensuring the Western grid has sufficient generating capacity to meet growing power demand. (RTO Insider, subscription)
Heavy snows in northern California damage utility lines, leaving more than 14,000 households without power. (South Tahoe Now) 

The U.S. Energy Department awards $2.5 million to universities in Alaska and Arizona $2.5 million to research mingling solar power with crops, known as agrivoltaics. (PV Magazine)
The federal Bureau of Land Management halts new mining claims and energy leases on 4,400 acres of public land in Arizona while it analyzes two utility-scale solar projects proposed for the parcels. (news release) 

Federal officials attempt to prolong hydropower generation at Glen Canyon Dam in Arizona by reducing water releases from Lake Powell. (KUNC)
A Washington city’s officials postpone voting on a resolution opposing Lower Snake River hydropower dam removals to first hear the Spokane Tribe of Indians’ concerns. (Center Square)
U.S. lawmakers from Alaska and Washington state introduce a bill that would incentivize hydropower dam upgrades and fund obsolete river obstruction removal. (news release)
An Oregon municipal utility proposes removing a 15.9 MW hydropower dam rather than attempting to repair structural deficiencies. (Register-Guard) 

San Diego, California’s transit system sees its highest monthly ridership since March 2020, but numbers are still down from pre-pandemic times. (San Diego Union-Tribune)
Los Angeles considers eliminating fares for the county’s public rail and bus system. (Los Angeles Times)
Analyses find California has the nation’s highest gasoline prices and refiners’ per-gallon profits are the largest on the West Coast. (Los Angeles Times)
The federal government awards Phoenix, Arizona, $1 million to help extend light rail into the historically underserved southern part of the city. (KTAR)  

CLIMATE: After a judge dismisses Utah youths’ lawsuit alleging the state’s fossil fuel policies were harmful, advocates’ lawyers say they will continue to pursue similar litigation in other states. (High Country News)

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Jonathan hails from southwestern Colorado and has been writing about the land, cultures, and communities of the Western United States for more than two decades. He compiles the Western Energy News digest. He is the author of three books, a contributing editor at High Country News, and the editor of the Land Desk, an e-newsletter that provides coverage and context on issues critical to the West.