POWER April 2021 - 2

INSTRUMENTATION & CONTROL
Troubleshooting Issues and Eliminating Headaches
Related to Control Valves
26
Oscillating control valves are often cited as the cause of power plant performance
issues, and while erratic control valve behavior might be an apparent
source of concern, the true cause of operational problems is often located
elsewhere. Fully understanding and identifying the problem is an important
step when beginning to troubleshoot a control issue.
HYDROPOWER
Understanding Hydro Turbine Draft Tubes
and Their Importance
26
Hydropower facilities feature significant engineering and detailed designs.
Turbines have evolved over the years, and a constant has been the use of
draft tubes, what are in essence conical diffusers installed at the outlet of
turbine runners. This equipment, perhaps not top of mind when it comes to
hydropower, is of great importance when it comes to turbine efficiency.
WATER
How to Effectively Treat Power Plant
Cooling Water with Fewer Chemicals
Advancements in water management at power plants, particularly during the
cooling process, include alternatives to traditional chemistry, in an effort to
prevent biological and mineral fouling. The use of fewer chemicals, or nonchemical
water treatments, are part of new, innovative technologies that can
lessen maintenance and increase safety.
28
FUEL CELLS
Understanding Fuel Cells and Their Role
in the Green Energy Revolution
Fuel cell technology may be ready for its day in the sun, particularly as industry
looks for energy solutions that can combat climate change. The market for
zero-emissions energy is growing, and with it the market opportunities for
fuel cells.
ELECTRIFICATION
Top Utility Considerations for Truck Electrification
Utilities and grid operators need to prepare now for the impacts of increased
electrification, including from the transportation sector. This article presents
a series of factors power companies must address as they work to support
long-haul trucking customers in their transition to electric fleets.
COMMENTARY
How FERC Order 2222 Will Bring the
Power of Choice to Consumers
34
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Group and the Women in Power
Generation Group
2
By Dan Allegretti, Retail Energy Supply Association (RESA)
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FIND THE LATEST POWER NEWS AT POWERMAG.COM
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■ Exelon to Split Business, Spin Off Generation Segment
■ Power Co-op Files Bankruptcy After $2.1 Billion ERCOT Bill
■ Hydrogen and the Energy Transition
■ Floating Energy Storage Systems Take Shape
■ Siemens Studies Hydrogen Production, Storage at Utah Plant
■ Texas Launches Probe of Power Companies After Blackouts
■ Board Votes to Fire ERCOT CEO
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POWER | April 2021
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POWER April 2021

Table of Contents for the Digital Edition of POWER April 2021
