Archive: Coal

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 […]

Energy Resilience Demands Action—Just Not This One

In an apparent attempt to show supporters he is making good on his pledge to revive the dying coal industry, President Trump has been trying to find a way to funnel tens of billions of dollars to a small

ELECTRIC-POWER-conference-exhibition

Show Preview: ELECTRIC POWER

The ELECTRIC POWER Conference + Exhibition celebrates its 21st birthday this year, with the event scheduled for April 23–26 at the Mirage Events Center in Las Vegas, Nevada. ELECTRIC POWER for the past two

POWER Digest (April 2019): News Briefs from Around the World

The Netherlands Orders Early Closure of Coal Plants. The Dutch government on March 8 told Swedish power producer Vattenfall to stop using coal at the 650-MW Hemweg-8 hard coal-fired unit in Amsterdam by the

The Economic Thicket of Generating Cost Comparisons

Comparing the costs of differing electric generating technologies has become popular among advocates for particular technologies and those seeking to find the optimal approach to new generation. While getting

Controlling Boiler Level When Operating Conditions Change

The right level instrumentation is key to keeping boilers on an even keel. Guided-wave radar offers a critical combination of capabilities. If asked to make a short list of factors able to improve heat rate