by ridgelinecenter | Dec 18, 2023
This report summarizes the technological bases for the U.S. Environmental Protection Agency’s proposed rules limiting greenhouse gas emissions from fossil-fuel-fired electric generating units, issued in May 2023. It then explains in detail how the regulated...
by ridgelinecenter | Dec 18, 2023
This report explores the implementation of U.S. Environmental Protection Agency rules issued under the Clean Air Act (CAA) over the past several decades, specifically explaining how those rules have provided compliance flexibilities consistent with statutory...
by ridgelinecenter | Nov 1, 2023
EPA’s proposed carbon pollution standards for existing gas power plants would apply only to large plants running at annual capacity factors higher than 50%. Annual averaging of capacity factors provides signficant flexibility to these plants to ramp output to...
by ridgelinecenter | Jun 15, 2023
In May of 2023, the U.S. Environmental Protection Agency proposed to strengthen limits on emissions of hazardous air pollutants from coal-fired power plants. Since EPA finalized the original limits in 2011, there have been developments in air pollution control...
by ridgelinecenter | Jun 1, 2023
Benchmark Mineral Intelligence (BMI) identified 330 lithium mining projects as of December 2022, ranging from those that have been announced to those that are fully operating. Looking at the full supply projections of the 153 projects that were producing or had...
