The March 27th
article “Carbon Culprit” described
technologies under development that may be able to redeem coal from its
position as the worst of the worst greenhouse gas emitters. Pulverized coal has been touted as one
possibility. Thermal coal is crushed
into a fine power of a consistently similar to cosmetic makeup. It is blown with heated air into the firebox
of the furnace used in a coal-fired power plant. This leads to far more efficient use of furnace
capacity and reduces the amount of coal that has to be burned for the same
power generation.
Estimates
suggest using pulverized coal could reduce lifecyle greenhouse gas emissions by
four times to as low as 250 grams per kilowatt hour. At this level coal would still be among the
worst carbon emitters, but would be far more acceptable in those regions where
low carbon emission alternatives are not available.
American Electric Power (AEP: NYSE) is among the power producers that relies heavily on coal. At least 50% of its generating capacity is
from coal-fired power plants. The last
coal fired plant AEP built is the Turk power plant in Arkansas, which is touted
as the most advanced coal-fired power plant in the U.S. Commissioned in 2012, the 600-megawatt plant
uses pulverized coal to fire an ‘ultra-supercritical’ boiler. On top of these two efficiencies, AEP has
installed a selective catalytic reduction (SCR) system, low nitrogen oxide
(NOx) burners, a dry flue gas desulfurization (FGD) system, a ‘baghouse’ for
sulfur dioxide and particulate control, and an activated carbon injection to reduce
mercury emissions. The company claims
dramatically reduced greenhouse gas emissions resulting from more efficient use
of coal feedstock and the many layers of emissions control.
The plant
required an investment of $1.8 billion, implying a cost of $3.0 million per
megawatt of annual power production at maximum utilization. This seems like an expensive price tag,
especially in comparison to some of the most recent advanced in renewable
energy technology. Cost of operation for
the Turk plant may also raise some eyebrows.
Arkansas is near coal country, but AEP has chosen to source its coal
from low-sulfur supplies of the Powder River Basin in far away Wyoming.
The Turk site is
likely to be AEP’s last coal-fired power plant.
The company has indicated its plan for any new generating capacity is to
use natural gas feedstock for combustion boilers, or adopt wind or solar
technologies. These days utility-scale
renewable energy sources have become more competitive with coal and natural
gas. For example, on-shore wind turbines
range from about $1.3 million to $2.2 million per megawatt of nameplate
capacity. Even in the most expensive
locations in California or New York, solar farms require approximately $1.2 million
per megawatt capacity. Wind and solar
might be out of the range of possibility in the Arkansas area. The region benefits from ample waterways,
making hydroelectric a possibility.
However, large hydropower plants can require as little as $1.3 million per
megawatt, but could cost as much as $7.7 million per megawatt capacity.
New technologies
and operating practices may help reduce the carbon footprint of coal. However, the cost of construction and
operation could still be prohibitive if reduction of greenhouse gas emission
remains a priority. Advocates for the
coal industry argue against the standards that require the systems installed at
AEP’s Turk plant - systems that arguably helped escalate the
cost to $1.8 million per megawatt.
Unfortunately, without those systems, cheap electricity for Arkansas
residents would mean expensive environmental damage that must be paid by
others.
Arkansas is known as the Natural State. There is nothing ‘natural’
about as much as 1,000 pounds of carbon dioxide pumping into the air from a
coal-fired power plant. To use coal for
power production and keep Arkansas true to its nickname requires a financial
commitment of the sort made by AEP when the Turk power plant was designed and
constructed.
Environmental
standards have not been so bad for AEP. The
company reported $16.4 billion in total revenue in the year 2016, providing
$610.9 million in net income or $1.24
per share. This compares to $14.9
billion in the year 2012, when the first Turk unit was commissioned, reflecting
top-line growth driven by strength in demand for electric power. Net income in 2012 was $1.3 billion or $2.60
per share.
When only comparing
the book-end years in the five year period, there appears to have been a
dramatic decline in profits. Some might erroneously
conclude this is the result of burdensome environmental regulation. In fact, AEP’s operating margin had increased
to 20.3% in 2015, from 18.3% in 2012. Profits
in the year 2016 were impacted negatively by a $2.3 billion asset impairment
charge on merchant generation assets. Cash flows from operations were $4.5 billion,
just a bit above the five-year average of $4.4 billion.
Investors have
apparently seen past the hyperbole on environmental regulation as well as the
recent dip in reported earnings. AEP’s stock
price has soared in the five years since the Turk plant came online from prices
in the low 40s at the beginning of 2013 to the high 60s in the most recent
weeks. It seems investors are prepared
to reward AEP for trying to keep Arkansas in its ‘natural state’.
Neither the author of the Small Cap Strategist web
log, Crystal Equity Research nor its affiliates have a beneficial interest in
the companies mentioned herein.
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