Joe Mease and Bryan Benoit, Grant Thornton LLP After serving as a primary source of electrical power generation for the last half-century, bankruptcies throughout the American coal mining industry in 2020 serve as the proverbial canary in the mine for the once dominant black nuggets found across the U.S. from the Appalachians to the Powder River Basin. […]

“Tedious.” If you ask electric utilities for one word on powerline inspection, that would probably be it. “Time-consuming” and “expensive” would probably also feature. Yet, “vital” would be just as valid: there is no way to safely operate a transmission and distribution network without inspecting lines for damage or risk from factors such as vegetation. […]

Some high-tech security features meant to protect U.S. power plants from physical attack may not be as effective as good old-fashioned fences and concrete, according to a Georgia Institute of Technology graduate who modeled security measures in a computer simulation while earning her PhD in Public Policy. Jenna McGrath, who graduated in December 2018, published […]

For a decade or more, heat recovery steam generator (HRSG) users have heard that Grade-91 tubing (T-91) is susceptible to microstructure damage from improper heat treatment. Now, a new damage mechanism in T-91 tubing has been identified, which HRSG users heard about at the February 2018 HRSG User’s Group Conference. During the discussion on heat […]

Finding the best place to sample heat recovery steam generator (HRSG) tubes isn’t as hard as finding a needle in a haystack (but it’s like that). Ask most HRSG users where they take their routine tube samples for monitoring under-deposit corrosion in the high-pressure evaporator, and they’ll tell you, “first row, because it’s the hottest […]

Can you remember the first car or motorbike you owned? The irresistible look and feel of its solid steel construction, and your proud feeling during the first drive through your brightly lit city. What about your last hard day at work? Pouring cup after cup of coffee from a glass pot into your ceramic mug, trying […]

Today’s construction boom in the combined cycle/cogeneration sector is great news for suppliers of gas turbines (GTs), heat recovery steam generators (HRSGs), and engineer-procure-construct (EPC) services. But before this boom advances from artist’s sketches (Figure 1) to first fires, the designers of all those next-generation combined cycles should pause to reflect on the lessons learned […]