coal

Plant wastewater treatment is not what it once was, and changes in the Environmental Protection Agency’s effluent limitations guidelines (ELG) have added a host of new wrinkles. A panel of power plant experts discussed what plant managers are planning and doing to keep things running smoothly within the new rules. For more than three decades, […]

Eskom operates 23 power stations in South Africa with a total capacity of more than 42 GW. It supplies about 95% of all the electricity used in the country. One of its coal-fired power stations was experiencing frequent boiler tube fatigue failures in the hopper section—the bottom part of the boiler—of all six units. The […]

The niche alternative energy industry that generates power from hazardous piles of coal waste that litter the U.S. is facing an environmental Catch-22. The torrent of coal mined and processed in the U.S. since

Fuel blending and switching has become the norm in response to regulatory and market forces, but many older boilers were designed for a particular fuel. Understanding the effects of different fuels on

The Environmental Protection Agency’s (EPA’s) controversial Mercury and Air Toxics Standards (MATS) survived another day as the U.S. Supreme Court on June 13 declined to review the D.C. Circuit’s decision to leave the rule in place while the EPA revises it to comply with a 2015 Supreme Court ruling. The 2015 decision sent MATS back […]

Michigan utility DTE Energy announced on June 8 that it would retire a total of eight aging coal-fired units at three of its plants by 2023. The units slated for retirement are located at the 651-MW River Rouge plant, the 536-MW Trenton Channel plant (Figure), and the 1,547-MW St. Clair plant. All three are located in […]

China unveiled its 13th Five-Year Plan this March. The official proposal that will guide the country’s economic and social development from 2016 through 2020 lays out targets and other measures to address a number of climate change, air pollution, and water policies that will build on progress to transform its power sector. The plan sets […]

The Environmental Protection Agency’s rule to regulate the disposal of coal combustion residuals as solid waste went into effect last fall. After evaluating the available solutions and technologies, here’s what some experts consider the safest and most effective approaches for complying with the rule and protecting the environment. A little over a year ago, the […]

Coal-fired power plants around the U.S. are closing—rapidly. It’s a trend that will continue for the foreseeable future as dozens more units are slated for closure in the next few years. According to a