POWER October 2013 - 63

Emissions
1. GHG permits under review and finalized. Source: EPA
Through end of 2012
First half of 2013
200
180
160
140
120
100
80
60
40
20
Permits under review
warming. They argued that GHGs were defined
as an air pollutant under 302(g) of the
CAA and that the EPA had a mandatory duty
to regulate their emission under Section 202
of the CAA. The petitioners were looking
for the EPA to impose stricter fuel efficiency
standards on motor vehicles as the means to
reduce CO2
emissions.
On Sept. 8, 2003, the EPA made two determinations
that created a conflict among
multiple parties. The first determination was
that the EPA did not have the authority under
the CAA to regulate CO2
or other GHGs
because they were not defined as pollutants.
The second was that if the EPA did have the
authority under the CAA to regulate CO2
and
GHGs, it would decline to set emission limits
for mobile engines. The agency argued
that increasing the fuel efficiency of motor
vehicles was a function of the Department of
Transportation, not the EPA.
Endangerment and Cause or
Contribute Findings
The Supreme Court ruling pushed the EPA
to further examine the effect of GHGs on
public health and welfare and clearly identify
which combustion byproducts are considered
GHGs under Section 202(a) of the CAA. In
the Endangerment and Cause or Contribute
Findings for Greenhouse Gases, the EPA
determined that GHG emissions from motor
vehicles did contribute to GHG pollution.
The EPA also identified CO2
(CH4), nitrous oxide (N2
, methane
O), hydrofluorocarPermits
finalized
As a result of this determination, a lawsuit,
Massachusetts v. EPA (2007), was filed
against the EPA. The Supreme Court found
that CO2
and other GHGs could fall within
the broad definition of an air pollutant and
that the EPA had the authority to regulate
emissions of GHGs.
bons (HFCs), perfluorocarbons (PFCs), and
sulfur hexafluoride (SF6
) as six key GHGs
that " threaten the public health and welfare
of current and future generations. "
These finding alone did not constitute a
regulation of GHGs-only a determination
by the EPA that these gases were harmful
and fell under the domain of the CAA. In
anticipation of these results, the EPA issued
a new rule regulating GHG emissions from
stationary sources. On Sept. 30, 2009, the
EPA proposed the Greenhouse Gas Tailoring
Rule to regulate emissions of the six GHGs
as Prevention of Significant Deterioration
(PSD) pollutants.
Greenhouse Gas Tailoring Rule
Intended as a phased approach to regulating
the emission of GHGs from stationary
sources, the third step of the Greenhouse Gas
Tailoring Rule was phased in on July 1, 2013.
The rule requires new and existing facilities
with GHG emissions of at least 100,000 tons
per year carbon dioxide equivalent (CO2
e) to
obtain PSD permits. In addition to the PSD
permit, these facilities must also now obtain
a Title V operating permit. Facilities already
holding a PSD permit that increase GHG
emissions by 75,000 tons per year CO2
e must
now address the increase in emissions.
As this phased approach to regulating GHGs
progresses, permitting agencies are beginning
to increase their efforts in reviewing and issuing
permits addressing GHGs. By the end of
2012, permitting agencies had 139 applications
under review and had final permits issued for
50 facilities. By the middle of 2013, these same
agencies had 183 permits under review and had
issued 33 final permits (Figure 1).
www.rittal.us
October 2013 | POWER
www.powermag.com
63
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POWER October 2013

Table of Contents for the Digital Edition of POWER October 2013

Contents
POWER October 2013 - Cover1
POWER October 2013 - Cover2
POWER October 2013 - Contents
POWER October 2013 - 2
POWER October 2013 - 3
POWER October 2013 - 4
POWER October 2013 - 5
POWER October 2013 - 6
POWER October 2013 - 7
POWER October 2013 - 8
POWER October 2013 - 9
POWER October 2013 - 10
POWER October 2013 - 11
POWER October 2013 - 12
POWER October 2013 - 13
POWER October 2013 - 14
POWER October 2013 - 15
POWER October 2013 - 16
POWER October 2013 - 17
POWER October 2013 - 18
POWER October 2013 - 19
POWER October 2013 - 20
POWER October 2013 - 21
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POWER October 2013 - 24
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POWER October 2013 - 30
POWER October 2013 - 31
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POWER October 2013 - 33
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POWER October 2013 - 35
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