FW: Encina Power Station - Revised Baseline Emissions

Moore, Steve 

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Shaheerah Kelly 05/14/2008 05:47 PM

From: "Moore, Steve " <Steve.Moore@sdcounty.ca.gov>

To: Shaheerah Kelly/R9/USEPA/US@EPA

History: This message has been replied to.

Shaheerah,

As we discussed, here is the latest submittal from the applicant on the baseline emission calculations. 

Thanks.

Steven Moore

Senior Air Pollution Control Engineer

San Diego County Air Pollution Control District

10124 Old Grove Road, San Diego, CA 92131

858-586-2750

Celebrating 50 years of air quality progress!

From: Tom W. Andrews [mailto:TAndrews@sierraresearch.com] 

Sent: Thursday, April 17, 2008 3:30 PM

To: Moore, Steve ; Nguyen, Camqui

Cc: Tom W. Andrews

Subject: Encina Power Station - Revised Baseline Emissions

Steve and Camqui:

Enclosed is the revised baseline emissions for the Encina Power Station. I sorry this took me so long to 

get to you. I also included the Excel spreadsheet so that you can see how the Rule 69 NOx correction 

was done. Please let me know if you have any questions. 







2002 Operating Year

(tons) #1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 Res. Oil GT 

CO 138.6 174.1 0.5 181.3 802.7 1.8 920.5 1.6 NOx 11.3 14.0 0.6 14.6 90.1 11.8 103.3 10.4 

PM10 9.6 12.1 1.1 12.6 55.6 2.6 63.7 2.3 ROG 4.5 5.7 0.1 5.9 26.1 0.3 30 0.2 SOx 0.5 0.6 7.8 0.6 2.8 2.6 3.3 2.3 TOG 9 11.3 0.1 11.8 52.2 0.4 59.9 0.3 TSP 9.6 12.7 1.1 12.6 55.6 2.6 63.7 2.3 

#1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 Res. Oil GT 

CO 169 169 5 169 169 5 169 5 NOx 19 19 32 19 19 32 19 32 NOx* 0.15 0.15 0.4 0.15PM10 11.7 11.7 10 11.7 11.7 7 11.7 7 ROG 5.5 5.5 0.93 5.5 5.5 0.76 5.5 0.76 SOx 0.6 0.6 71 0.6 0.6 7 0.6 7 TOG 11 11 1.04 11 11 1.04 11 1.04 TSP 11.7 11.7 10 11.7 11.7 7 11.7 7 * SDAPCD Rule 69 NOx emission limit for natural gas and oil used in terms of lbs/MW-hr.Fuel Types Boiler #1 Boiler #2 Boiler #3 Boiler #4 Boiler #5 Gas TurbineResidual Oil (gallons) 218991 734633.3 650229.75Nat. Gas (million ft3) 1639.999 2060.796 2145.807 9499.978 10893.144 18.954Diesel (gallons) 21420

Emission Amounts 2002 - Annual Inventory Report

Emission Factors (lbs./million ft3 for gas & lbs./ 1000 gal. for oil) - Annual Inventory Report

Encina Fuel 2002

(g )

Gasoline? (gallons)Fuel Sulfur Content (Wt. %) 0.25 0.25 0.25 0.05Rule 69 Corrected NOx Emission Amounts 2002 (calculated)

(tons) #1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil

NOx 11.2603 13.9636 0.5825 14.6116Information Needed to Convert from Rule 69 NOx Emission Factor based on lbs/MW-hr to lbs/MMBtu2004 Operating Data Boiler #1 Boiler #2 Boiler #3MW-hr Generation 179675 226238 353242MMBtu 1,999,937 2,551,753 3,964,604MW-hr/MMBtu 0.0898402 0.0886600 0.0890990
2003 Operating Year

(tons) #1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 Res. Oil G

CO 56.7 0.3 70.4 0.2 100.1 0.3 416.6 481 NOx 10.3 1.8 12.8 1.2 18.2 1.9 75.7 87.4 

PM10 6 9 0 6 7 9 0 4 11 6 0 6 53 5 46 7 

Emission Amounts 2003 - Annual Inventory Report

PM10 6.9 0.6 7.9 0.4 11.6 0.6 53.5 46.7 ROG 3.7 0.1 4.6 0.1 6.6 0.1 27.3 31.5 SOx 0.4 4.1 0.5 2.6 0.7 4.2 3 3.4 TOG 7.4 0.1 9.2 0.1 13.1 0.1 54.6 63 TSP 6.9 0.6 7.9 0.4 11.6 0.6 53.5 46.7 

Emission Factors (lbs./million ft3 for gas & lbs./ 1000 gal. for oil) - Annual Inventory Report

#1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 Res. Oil G

CO 84 5 84 5 84 5 84 84 NOx 15.3 32 15.3 32 15.3 32 15.3 15.3 PM10 10.3 10 9.44 10 9.75 10 10.8 8.16 ROG 5.5 0.93 5.5 0.93 5.5 0.93 5.5 5.5 SOx 0.6 71 0.6 71 0.6 71 0.6 0.6 TOG 11 1.04 11 1.04 11 1.04 11 11 

TSP 10.3 10 9.44 10 9.75 10 10.8 8.16 Fuel Types Boiler #1 Boiler #2 Boiler #3 Boiler #4 Boiler #5 Gas TurbineResidual Oil (gallons) 115290 74466 117600Nat. Gas (million ft3) 1349.623 1675.005 2383.753 9919.283 11452.104 36.0149Diesel (gallons) 410Gasoline? (gallons)

Encina Fuel 2003

Fuel Sulfur Content (Wt. %) 0.25 0.25 0.25 0.05
2004 Operating Year

(tons) #1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 Res. Oil 

CO 82.4 105.2 163.4 570.9 533.8 NOx 12.5 15.9 24.8 86.5 80.9 PM10 9 9 14 9 19 3 70 5 54 

Emission Amounts 2004 - Annual Inventory Report

PM10 9.9 14.9 19.3 70.5 54 ROG 5.4 6.9 10.7 37.4 35 SOx 0.6 0.8 1.2 4.1 3.8 TOG 10.8 13.8 21.4 74.8 69.9 TSP 9.9 14.9 19.3 70.5 54 

Emission Factors (lbs./million ft3 for gas & lbs./ 1000 gal. for oil) - Annual Inventory Report

#1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 Res. Oil 

CO 84 84 84 84 84 NOx 12.7 12.7 12.7 12.7 12.7 PM10 10.1 11.9 9.93 10.4 8.49 ROG 5.5 5.5 5.5 5.5 5.5 SOx 0.6 0.6 0.6 0.6 0.6 TOG 11 11 11 11 11 

TSP 10.1 11.9 9.93 10.4 8.49 Fuel Types Boiler #1 Boiler #2 Boiler #3 Boiler #4 Boiler #5 Gas TurbineResidual Oil (gallons)Nat. Gas (million ft3) 1962.6472 2504.1734 3890.6812 13593.06 12710.5447 49.8023Diesel (gallons) 28152Gasoline? (gallons)

Encina Fuel 2004

Fuel Sulfur Content (Wt. %) 0.05
2005 Operating Year

(tons) #1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 Res. Oil G

CO 73.5 0.1 79.8 0.1 87.5 0.1 384.1 268.7 

NOx 10 2 0 6 11 1 0 6 12 1 0 6 53 2 37 2 

Emission Amounts 2005 - Annual Inventory Report

NOx 10.2 0.6 11.1 0.6 12.1 0.6 53.2 37.2 PM10 9.5 0.1 11.8 0.1 11.6 0.1 47.7 28.4 ROG 4.8 0.1 5.2 0.1 5.7 0.1 25.1 17.6 SOx 0.5 0.1 0.6 0.1 0.6 0.1 2.7 1.9 TOG 9.6 0.1 10.5 0.1 11.5 0.1 50.3 35.2 TSP 9.5 0.1 11.8 0.1 11.6 0.1 47.7 28.4 

#1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 Res. Oil G

CO 84 5 84 5 84 5 84 84 NOx 11.6 67 11.6 67 11.6 67 11.6 11.6 PM10 10.8 7 12.4 7 11.1 7 10.4 8.88 ROG 5.5 0.76 5.5 0.76 5.5 0.76 5.5 5.5 SOx 0.6 7 0.6 7 0.6 7 0.6 0.6 

TOG 11 1 04 11 1 04 11 1 04 11 11 

Emission Factors (lbs./million ft3 for gas & lbs./ 1000 gal. for oil) - Annual Inventory Report

TOG 11 1.04 11 1.04 11 1.04 11 11 TSP 10.8 7 12.4 7 11.1 7 10.4 8.88 Fuel Types Boiler #1 Boiler #2 Boiler #3 Boiler #4 Boiler #5 Gas TurbineResidual Oil (gallons) 19320 19320 18060Nat. Gas (million ft3) 1750.42 1900.231 2083.49 9144.569 6397.681 8.9213Diesel (gallons)

Encina Fuel 2005

Gasoline? (gallons)Fuel Sulfur Content (Wt. %) 0.25 0.25 0.25
2006 Operating Year

#1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 R

CO 41.7 126 5 43.4 5 36.7 5 21.5 NOx 11.6 11.6 32 11.6 32 11.6 32 11.6 3

Emission Factors (lbs./million ft3 for gas & lbs./ 1000 gal. for oil) - Annual Inventory Report

PM10 10.8 12.4 10 11.1 10 10.4 10 8.88 1ROG 5.5 5.5 0.93 5.5 0.93 5.5 0.93 5.5 0SOx 0.6 0.6 71 0.6 71 0.6 71 0.6 7TOG 11 11 1.04 11 1.04 11 1.04 11 1TSP 10.8 12.4 10 11.1 10 10.4 10 8.88 1

Encina Fuel 2006

Fuel Types Boiler #1 Boiler #2 Boiler #3 Boiler #4 Boiler #5 Gas TurbineResidual Oil (gallons) 0 20412 27636 73500 54600Nat. Gas (million ft3) 583.5 1093.3 1326.9 5894.9 6294.7 16.9Diesel (gallons) 509.8Gasoline? (gallons)Fuel Sulfur Content (Wt. %) .25 (Oil) .25 (Oil) .25 (Oil) .25 (Oil) .05 (Diesel)

(tons) #1 Nat. Gas #1 Res. Oil #2 Nat. Gas #2 Res. Oil #3 Nat. Gas #3 Res. Oil #4 Nat. Gas #4 Res. Oil #5 Nat. Gas #5 R

CO 12.1660 0.0000 68.8779 0.0510 28.7937 0.0691 108.1714 0.1838 67.6680 0.1NOx 3.3843 0.0000 6.3411 0.3266 7.6960 0.4422 34.1904 1.1760 36.5093 0.8PM10 3.1509 0.0000 6.7785 0.1021 7.3643 0.1382 30.6535 0.3675 27.9485 0.2ROG 1.6046 0.0000 3.0066 0.0095 3.6490 0.0129 16.2110 0.0342 17.3104 0.0SOx 0.1751 0.0000 0.3280 0.7246 0.3981 0.9811 1.7685 2.6093 1.8884 1.9

Emission Amounts 2006 (calculated)

TOG 3.2093 0.0000 6.0132 0.0106 7.2980 0.0144 32.4220 0.0382 34.6209 0.0TSP 3.1509 0.0000 6.7785 0.1021 7.3643 0.1382 30.6535 0.3675 27.9485 0.2
Table 5.1B-12 (Revised 4/15/08)

Actual Annual Emissions For Units 1, 2, and 3*

Encina Power Station

Years Units NOx CO VOC PM SOx

1 11.3 138.6 4.5 9.6 0.5

2 14.5 174.6 5.8 13.2 8.4

3 14.6 181.3 5.9 12.6 0.6

1 12.1 57.0 3.8 7.5 4.5

2 14.0 70.6 4.7 8.3 3.1

3 20.1 100.4 6.7 12.2 4.9

1 12.5 82.4 5.4 9.9 0.6

2 15.9 105.2 6.9 14.9 0.8

3 24.8 163.4 10.7 19.3 1.2

1 10.8 73.6 4.9 9.6 0.6

2 11.7 79.9 5.3 11.9 0.7

3 12.7 87.6 5.8 11.7 0.7

1 3.4 12.2 1.6 3.2 0.2

2 6.7 68.9 3.0 6.9 1.1

3 8.1 28.9 3.7 7.5 1.4

Notes:

* Based on SDAPCD annual inventory reports for the Encina Power Station

 with the exception of NOx emissions during 2002 which have been Rule 69 corrected.

Table 5.1B-13 (Revised 4/15/08)

5-Year Average Baseline Emissions For Units 1, 2, and 3

Encina Power Station

Years Units NOx CO VOC PM SOx

1 10.0 72.8 4.0 8.0 1.3

2 12.6 99.8 5.1 11.0 2.8

3 16.1 112.3 6.6 12.7 1.8

Total = 38.6 284.9 15.7 31.6 5.8

Total Emissions in tons/year

Reported Emissions

2004

5-Year 

Lookback 5-

Year Average

Reported Emissions

Total Emissions in tons/year

2005

2006

2002

2003