Archive: Coal

Federal Court Vacates Parts of Obama EPA’s ELG Rule 

In a legal victory for environmental groups, a federal court has vacated key portions of the Environmental Protection Agency’s (EPA’s) November 2015-promulgated effluent limitations guidelines (ELGs) for steam electric power plants, deeming them “unlawful.”  The decision adds a dramatic new element of uncertainty in timing of the rule, which the Trump administration has said it […]

GE Marks ‘Ultra Low’ NOx Gas Turbine Technology Triumph

In a significant technical triumph, GE has completed first installation of a new gas-fired power plant technology that it says can reduce nitrogen oxide (NOx) emissions to 5 parts per million (ppm).  GE on April 11 completed combustion upgrades on nine GE 9E gas turbines at five power generation enterprises in Shenzen, a major industrial […]

The Importance of RTO Maintenance

The importance of RTO maintenance
RTOs or Regenerative Thermal Oxidizers control emissions without producing harmful byproducts or hazardous waste. They help destroy volatile organic compounds (VOCs), hazardous air pollutants (HAPs) and other odorous emissions created during normal manufacturing and industrial processes by combusting them into carbon dioxide and water. RTOs pass hot exhaust gas and cooler

Ohio Lawmakers Announce Plan to Subsidize Nuclear Plants

Ohio lawmakers on April 12 announced a plan to provide financial support to the state’s two nuclear power plants by adding a surcharge to customers’ electric bills. The bill’s supporters said it also would generate as much as $300 million annually for clean power generation in Ohio, though the measure calls for abolishing mandates for […]

PJM Will Hold Capacity Auction Under Current Rules in August

PJM Interconnection said it will hold its 2022–2023 capacity auction under current market rules on Aug. 14, 2019, though the Federal Energy Regulatory Commission (FERC) has yet to issue a decision on the grid operator’s plan to revamp its Minimum Offer Price Rule (MOPR). In an April 10 filing, however, PJM asked FERC to clarify that […]

POWER Notebook: New 1,600-MW Coal Plant in India; Low-Price Solar Deal in Idaho

Financing has reportedly been secured for a 1,600-MW coal-fired power plant in India’s eastern state of Jharkhand. Qatar’s Gulf Times newspaper reported April 6 that Power Finance Corp., a state-run lender in India, and its subsidiary REC approved a $1.5 billion loan for the project. The report said the new plant would be funded through loans […]

For First Time, IEA Quantifies Coal’s Dominant Role in Global Temperature Increase

Coal combustion was responsible for more than 0.3 degrees C of the 1-degree C surge in global average annual surface temperatures above pre-industrial levels—and that makes coal the single largest source of the global temperature increase, the International Energy Agency (IEA) says in a new report.  The finding, outlined in the IEA’s Global Energy & […]

Former TVA CEO Will Take the Reins at PG&E

PG&E Corp. announced on April 3 the appointment of William “Bill” Johnson as the company’s new president and CEO. It also announced the appointment of 10 new directors to its board of directors. The board appointments will be effective as of the next in-person board meeting, which will be held as soon as practicable, the […]

N.C. Officials Order Duke Energy to Excavate Coal Ash Ponds

North Carolina officials have ordered Duke Energy to excavate all its coal ash storage ponds in the state, saying the utility’s current plan for its coal ash sites does not sufficiently protect groundwater. The directive issued April 1 comes after regulators in other states, including Virginia, issued similar rulings regarding coal ash disposal in those […]

What Are Supercritical CO2 Power Cycles?

While conventional power plant cycles produce power from turbines using water or steam as the working fluid, supercritical carbon dioxide (sCO2) cycles use CO2 that is in a supercritical state—at a temperature and pressure above its critical point where liquid and gas phases are not distinguishable.  CO2 has a relatively low critical pressure of 7.4 megapascal […]