renewable energy

New Mexico’s largest electric utility has submitted to state regulators its plan for shutting down a coal-fired power plant in the Four Corners region.

The filing with the state’s Public Regulation Commission will determine the future of the San Juan Generating Station.  The move comes as a new state law dictates more aggressive renewable energy requirements while allowing Public Service Company of New Mexico to recoup from customers some of the expenses.


The coal-burning Cholla Power Plant near Holbrook is slated to close in 2025. One of the owners, Arizona Public Service Company, is considering converting one of its three units it into a biomass facility. KNAU’s Ryan Heinsius reports.


The Navajo Nation could lose $170 million in the next decade on its investment in a New Mexico coal-fired power plant. KNAU’s Ryan Heinsius reports, an energy research group examined the long-term economics of the deal.

Arizona voters have rejected a measure requiring regulated utilities to obtain 50 percent of their electricity from renewable energy sources like solar or wind power by 2030.

Ryan Heinsius

Two investment firms announced last month they’d no longer pursue the purchase of the Navajo Generating Station. Now, with no other potential buyers, the Navajo Nation is exploring ways to take over the coal-fired plant. KNAU’s Ryan Heinsius reports.