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
39.7% coal, 38.2% natural gas/oil, 20.9% nuclear, 1.1% hydro
Service Territories
34,000 square miles in the Carolinas
20,033 square miles in central Florida
Electric Customers
Progress Energy Carolinas -1.3 million
Progress Energy Florida -1.5 million
38 plant sites
2002 Generation Capability (MWs)

5. Air Pollutant Formation
NOX O3
SO4
NO3 OC
VOC
SO2
NOX
VOC
NOX
VOC
VOC
NOX
NH3
PM2.5

6. 2007 Triangle Area NOx Emissions (Projected)
From Greater Triangle Regional Council Air Quality Report
2000 total NOx, Triangle area:
tons per day
Average summer weekday
2007 total NOx, Triangle area:
tons per day
Average summer weekday

7. Evolution of PGN NOx Control Technology Installations
1993 – Traditional approach (LNB/OFA)
WIR installations
st ROFA installation
AEFLGR installation
st ROFA/Rotamix installation
st SCR installation
additional SCR’s in service
Change fuels
Natural gas vs. coal
Reduce NOx formed during combustion
Low NOx burners
Underfire air
Overfire air
Remove NOx after it is produced
Selective non-catalytic reduction(SNCR)
Selective catalytic reduction(SCR)

8. Progress Energy NOx 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, one year ahead of compliance requirements

9. NC Annual and Ozone Season NOX Emissions
Actual
Projected
77% reduction
by 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 Energy Emissions 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’s Clean Smokestacks Act Plan Supplement April 1, 2004
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) ,000
SO2 (2009) ,000
(2013) ,000
*Cumulative for all Progress Energy NC units

13. Locations of Progress Energy’s Coal-Fired Power Plants in North Carolina

14. Progress Energy NOX Emissions (Annual Emissions in Tons)
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
Roxboro 4Typical
Absorber Pumps
Number 6
HP hp
GPM 51,000
Recirc Line Size 4 feet
Absorber Size 62 ft dia * 110 ft tall
Liquid Depth 44 feet
Flue Gas Velocity 12 ft/sec
Residence time 15 hours

17. Progress Energy SO2 Emissions (Annual Emissions in Tons)
Actual
Clean Smokestacks
Reduces faster - completed in 2014 instead of 2018