California is on the verge of a historic transition in its fight against climate change. Next month, the state will stop receiving electricity from the Intermountain Power Plant in Central Utah, marking the effective end of California’s reliance on coal.
For decades, coal-fired power has been a significant source of greenhouse gas emissions, contributing to rising temperatures, worsening droughts, and increasingly destructive wildfires in the state. The Intermountain shutdown represents the culmination of a deliberate, years-long effort to shift toward cleaner and more sustainable energy sources.
This change is both practical and symbolic. It reflects California’s commitment to modernizing its energy grid and embracing technologies that reduce carbon emissions while maintaining reliable electricity supply for millions of residents.
Coal’s Decline Across the U.S. and California
Coal’s influence on the national energy mix has diminished sharply. In 2007, nearly half of U.S. electricity came from coal-fired plants, but by 2023, that share had dropped to around 16%. California’s reduction has been even more dramatic. By 2024, coal accounted for just 2.2% of the state’s electricity, almost entirely from the Intermountain facility.
Technological improvements in energy storage and the diversification of electricity sources have made this transition possible without triggering the power shortages that once plagued the state. California now draws reliably on a combination of solar, wind, natural gas, and emerging technologies to meet its energy needs.
Utilities Drive the Transition
The Los Angeles Department of Water and Power (DWP) has been a major force behind the move away from coal. The utility has steadily reduced electricity purchases from Intermountain while investing in cleaner alternatives, including a natural gas and hydrogen-burning facility located near the Utah plant.
These investments allow California to maintain grid stability while reducing carbon emissions, demonstrating that the state can meet energy demands without depending on fossil fuels.
Economic and Social Impacts
California’s shift mirrors earlier changes in the Southwest. In 2019, the Navajo Generating Station—the largest coal-fired plant in the West at the time—closed, cutting power supplied to Los Angeles. The shutdown had significant effects on the Navajo Nation, where many relied on the plant and nearby coal mines for jobs and income.
While the closure created economic challenges, it also highlighted the environmental costs of coal production. Local residents noted that water pollution and the diversion of resources away from the community often left only workers with direct benefits, while broader environmental and social impacts affected the wider area.
The Navajo experience illustrates the broader challenge of balancing environmental priorities with economic needs in regions historically reliant on coal.
Federal Policy and Coal Support
At the national level, coal continues to receive federal support. The current administration has opened millions of acres of public land to coal mining and offered financial incentives to operators. Federal officials argue that such measures are essential for maintaining electricity affordability and reliability.
Despite these policies, California utilities have not been swayed. The state’s commitment to cleaner energy sources remains clear, and its energy planning continues to prioritize renewables and innovative technologies over fossil fuels.
Emerging Technologies: Hydrogen and Beyond
Part of California’s strategy involves investing in new technologies like hydrogen production. The upgraded Utah facility will be capable of generating hydrogen by splitting water molecules, a process that produces minimal greenhouse gas emissions compared with coal combustion. While environmental concerns about byproducts remain, experts note that these risks are far lower than the harms associated with traditional fossil fuels.
The adoption of such technologies shows that energy transitions can be both environmentally responsible and economically viable, ensuring a reliable power supply while reducing emissions.
Even in Millard County, Utah, home to the Intermountain Plant, local officials have shown pragmatic acceptance of the shift. County leaders emphasize the importance of energy development and express openness to working with diverse stakeholders, signaling a willingness to adapt to evolving energy markets.
