POWER February 2014 - 32

InstrumentatIon & Control
Remote Monitoring and
Diagnostics Within a Smart
Integrated Infrastructure
Coal power plants face more and greater challenges to their continued operations
than at any time since the Industrial Revolution. As a result, utilities must employ
new strategies for balancing the competing pressures of emissions compliance,
economic dispatch, reliability, and performance. A combination of software tools
and domain knowledge-plus an informed methodology for linking and applying
these tools and knowledge-is helping to meet these challenges.
Una Nowling
I
32
t seems as if each week brings further
bad news for coal power plants. Recently,
Consumer's Energy sought relief to close
three power plants, South Carolina Electric &
Gas announced it would cease operations at
the Canadys Station, and the Tennessee Valley
Authority announced the closure of eight
additional coal units, removing 3,000 MW of
coal-fired generation from its fleet. A Platts
report released in August 2013 predicts that
retirements of coal-fired plants will " surge "
through 2015, when the U.S. Environmental
Protection Agency's Mercury and Air Toxics
Standards go into effect. Although some portion
of this lost electrical generation will be
replaced by natural gas combustion turbines,
barring further CO2 regulation, the remaining
fleet of coal power plants will see greater
demand and thus will operate at higher capacity
factors.
Coal accounted for 50% of U.S. generation
in 2005 and by recent estimates will end 2013
at 39.3%, with natural gas-fired generation
being 27.5%. According to the U.S. Energy
Information Administration, coal generation
will continue to slowly increase through 2029
in absolute numbers, even as its percentage
of our generation mix slowly declines. The
www.powermag.com
message is clear: Most coal power plants will
weather the near-term storms but will require
continuous improvement in order to continue
operations for the years to come.
Challenges for Future Coal Plant
Operations
Compliance with the Clean Air Act Amendments
of 1990 changed the focus at most
coal-fired power plants from performance to
emissions, and as a result, the net plant heat
rate of the U.S. coal fleet has worsened steadily.
This trend extended through 2012, and given
the rush to meet ever-tightening emissions
POWER | February 2014

http://www.powermag.com

POWER February 2014

Table of Contents for the Digital Edition of POWER February 2014

Contents
POWER February 2014 - Cover1
POWER February 2014 - Cover2
POWER February 2014 - Contents
POWER February 2014 - 2
POWER February 2014 - 3
POWER February 2014 - 4
POWER February 2014 - 5
POWER February 2014 - 6
POWER February 2014 - 7
POWER February 2014 - 8
POWER February 2014 - 9
POWER February 2014 - 10
POWER February 2014 - 11
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POWER February 2014 - 13
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POWER February 2014 - 31
POWER February 2014 - 32
POWER February 2014 - 33
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POWER February 2014 - 35
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POWER February 2014 - 64
POWER February 2014 - Cover3
POWER February 2014 - Cover4
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