Technology
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Renewables
Geothermal Drilling in Iceland Reaches Supercritical Target
A unique collaborative effort by a consortium of Icelandic power companies and the Icelandic government to determine whether using supercritical geothermal fluids would improve the economics of power
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Gas
SCE, GE Debut Battery-Gas Turbine Hybrid System
Southern California Edison (SCE) put online the world’s first battery–gas turbine hybrid system on March 30 in Norwalk, Calif., pioneering a new direction in the way power could be generated and stored
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Connected Plant
PID Loop Tuning Pocket Guide Released
Proportional-integral-derivative (PID) control is one of the most common types of automatic control used in the power industry. A PID controller continuously calculates an error value as the difference between
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Legal & Regulatory
Offshore Wind Contract Conundrum Heads to Supreme Court
The English Supreme Court is due to hear an appeal on the long-running dispute in connection with the Robin Rigg Offshore Wind Farm. The decision promises to be significant for the offshore wind industry, its
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O&M
Energy Generation from A-to-Z with Machine Learning
The human brain is an amazing thing, but it has limitations. However, with the advent of machine learning, the limitations of the human brain no longer have to be the limitations of civilization. Machine
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O&M
How to Prevent Circulating Water Flow Reversal
Flow reversal in piping systems can degrade equipment performance and cause significant water hammer, potentially resulting in catastrophic failure. Power plant condenser cooling water systems—or circulating
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O&M
Borescope Inspection Saves Time and Money for Gas Turbine Plant
Inspecting the internal condition of a turbine generator is an important maintenance activity, but tearing a unit apart is a long and expensive process. Borescope inspections offer one way to minimize work
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O&M
No Firm Date for Watts Bar 2 Return to Service Yet
Watts Bar 2, the Tennessee Valley Authority’s (TVA’s) nuclear unit that began commercial operation last October, has been shut down indefinitely owing to a major issue with a condenser revealed this March. TVA spokesman Jim Hopson told POWER on May 11 that the reactor—the first new nuclear unit to begin operations in the U.S. in more than […]
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Nuclear
Vogtle, V.C. Summer Project Owners Buy More Time to Mull Fate of Nuclear Units
The owners of the Vogtle and V.C. Summer nuclear expansions separately secured a few more weeks to allow work to continue onsite at each project while they decide how to proceed with the half-built AP1000 reactors after Westinghouse’s financial debacle. In Georgia, owners of the project to expand Plant Vogtle extended an interim assessment agreement […]
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Distributed Energy
Whatever Happened to Fuel Cells?
Hydrogen-powered fuel cells were supposed to be the “Next Big Thing” a decade ago, but the hype ran well ahead of the market and technology. Yet some quiet advances and steady work have the sector on the