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1
Environmental Leadership The Pursuit of Cleaner Air
A Presentation to the
DENR/DAQ Mercury and CO2 Workshop
Ben White
April 20, 2004
2
Agenda
• Overview of Progress Energy
• Progress Energy’s Innovative Solutions for NOx Reduction
• Progress Energy’s activities pursuant to the Clean Smokestacks Act
3
Progress Energy at a Glance
• Super-regional energy company with over 23,000 megawatts of generation capacity
• Among the nation’s top ten utilities when ranked by generation capacity
• Employees: approximately 16,000
• Customers: 2.8 million electric customers in North and South Carolina and Florida
4
Progress Energy at a Glance
2002 Generation Capability (MWs)
38 plant sites
5
NOXNOXVOCVOC
SO4SO4NOXNOX
NOXNOXVOCVOC
VOCVOCO3O3
NOXNOX
NO3NO3
Air Pollutant FormationAir Pollutant Formation
SO2SO2
NH3NH3VOCVOC
OCOCOCOC
PM2.5PM2.5
6
2000 Triangle Area NOx Emissions2007 Triangle Area NOx Emissions
(Projected)
Mobile38%
Point50%
Nonroad10%
Biogenic1%
Area1%
2000 total NOx, Triangle area:474.25 tons per dayAverage summer weekday
Point20%
Nonroad21%
Area3%
Biogenic1%
Mobile55%
2007 total NOx, Triangle area:216.14 tons per dayAverage summer weekday
7
Evolution of PGN NOx Control Technology Installations
• 1993 – 1999 Traditional approach (LNB/OFA)
• 1997 - 1999 WIR installations
• 1999 - 2000 1st ROFA installation
• 1999 - 2000 AEFLGR installation
• 2000 - 2001 1st ROFA/Rotamix installation
• 1999 - 2001 1st SCR installation
• 2002 - 2006 5 additional SCR’s in service
8
Progress EnergyNOx Reduction Leadership
• Searched worldwide for emissions reduction technologies– Sweden – ROFA technology. Reduced NOx emissions by more than
50% at Cape Fear Plant.– Eastern Europe – WIR technology. Reduced NOx emissions by 35
to 40 percent at Weatherspoon and Lee plants.– First utility in the world to apply these controls
• Selective Catalytic Reduction (SCR)– First SCR in North Carolina - Roxboro Unit 4 – Three SCR’s in-service in Person County on May 1, 2003 - one year
ahead of compliance requirements
9
NC Annual and Ozone SeasonNOX Emissions
0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
NC Annual NC Ozone Season
Actual Projected
77% reductionby 2007
10
Clean Smokestacks Act
On June 20, 2002, North Carolina Senate Bill 1078, also known as the “Clean Smokestacks Act,” was signed into effect. This law, which was a landmark, cooperative effort between utilities, regulators, and environmental groups, requires significant reductions in the emissions of nitrogen oxides (NOx) and sulfur dioxide (SO2) from utility owned coal-fired power plants located in North Carolina. This act is serving as a model that other states are following.
11
Progress EnergyEmissions Reduction Leadership
• Clean Smokestacks– Broad coalition (DENR, Governor, General Assembly, Advocates,
Utilities)– Technologies will be installed by 2013– First scrubber operational in 2005 at Asheville plant– Rates frozen until 2007– Investing more than $800 million to comply with Act’s
requirements– Investment in addition to the $370 million the company has spent
to reduce NOx emissions in the ozone season– Technologies projected to reduce SO2 emissions by 74 percent
and NOx emissions by 56 percent from 2001 levels– EPA Clean Air Excellence Award to state and its partners
12
• Progress Energy owns and operates 18 coal-fired boilers at seven plants in North Carolina, with over 5000 MWe generating capacity.
• On June 20, 2002 Governor Easley signed into law SB1078 which caps emissions of nitrogen oxides (NOx) and sulfur dioxide (SO2) from utility owned coal-fired power plants located in North Carolina. Progress Energy emissions caps for NC are:
Tonnage Caps*
NOx (2007) 25,000
SO2 (2009) 100,000
(2013) 50,000
*Cumulative for all Progress Energy NC units
Progress Energy’s Clean Smokestacks Act Plan Supplement
April 1, 2004
13
Locations of Progress Energy’s Coal-Fired Power Plants
in North Carolina
14
Progress Energy NOX Emissions (Annual Emissions in Tons)
0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
Actual Reductions SIP Call Clean Smokestacks
Actual SIP Call
Clean Smokestacks
15
How Does an SO2 Scrubber Work?
A slurry of finely ground limestone (CaC03) is sprayed into a reaction tower, which has flue-gas flowing counter-current to the spray. The SO2 in the gas reacts with the limestone, removing 95% of the S02 and making CaS04 (gypsum).
16
FGD Overview B&W Absorber Module
17
Progress Energy SO2 Emissions(Annual Emissions in Tons)
0
50,000
100,000
150,000
200,000
250,000
Actual Emissions Clean Smokestacks
Actual
Clean Smokestacks