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Environmental Performance Summary Tables
(2004-2006)†

 

Emissions Statistics (for Utility-retained generation only)*

  2004 2005 2006
Total NOx Emissions (tons) 942 1,084 982
Hunters Point** 108 133 39
Humboldt 834 951 943
 
NOx Emissions Rates (lbs/MWh)
Hunters Point** 0.36 0.39 0.38
Humboldt 4.23 4.10 4.08
Fossil Plants 1.89 1.90 2.94
All Plants 0.07 0.06 0.06
 
Total SO2 Emissions (tons) 7.43 6.77 66***
Hunters Point** 3.06 3.33 1
Humboldt 4.37 3.44 65
 
SO2 Emissions Rates (lbs/MWh)
Hunters Point** 0.0102 0.0098 0.01
Humboldt 0.0221 0.0149 0.28
Fossil Plants 0.0150 0.0119 0.2000
All Plants 0.00054 0.00041 0.00388
 
Total CO2 Emissions (tons) 657,376 751,530 474,115
Hunters Point** 357,646 409,766 124,443
Humboldt 299,730 341,764 349,672
 
CO2 Emissions Rates (lbs/MWh)
Hunters Point** 1190 1210 1218
Humboldt 1519 1479 1511
Fossil Plants 1320 1319 1421
All Plants 48 44 39
 
Other Emissions Statistics      
SF6 Emissions 2004 2005 2006
Total SF6 Emissions (pounds) 11,552 7,396 5,539
Total SF6 Emissions (tons CO2-equivalent) 138,046 88,382 66,191
SF6 Emissions Leak Rate 4.2% 2.6% 1.9%
 
Methane Emissions      
Total Methane Emissions (tons) N/A 98,772**** N/A
Total Methane Emissions (tons CO2-equivalent) N/A 2,074,217**** N/A
† PG&E does not trigger threshold reporting levels for those substances reported under the Toxic Release Inventory.
* PG&E's Utility-retained generation comprised approximately 40 percent of our delivered electricity in 2006. See comparison to national average emission rates.
** PG&E's Hunters Point Power Plant ceased operations on May 15, 2006.
*** This increase was due to temporary fuel oil combustion at PG&E's Humboldt power plant during a period of natural gas curtailment.
**** 2005 was the first year PG&E certified all six of its greenhouse gas emissions, including methane.

Greenhouse Gas (GHG) Emissions Avoided (Tons CO2-equivalent)

  2004 2005 2006
Total GHG Avoided 3,393,981 3,400,849 4,298,066
CO2 Avoided (Lifecycle
Customer Energy Efficiency Savings)		 3,390,000 3,378,000 4,284,000
Methane Avoided 3,981 22,849 14,066

Annual1 Energy Savings and Emissions Avoided
(Customer Energy Efficiency Programs)

  2004 2005 2006
Energy Savings
Megawatt (peak) 77 115 142
GWh (total) 332 459 777
Million Therms 14 5.6 10.69
Emissions Avoided (Efficiency)
CO2 Avoided (tons) 264,000 285,000 489,000
NOx Avoided (tons) 23 32 54
1 Annual energy savings refer to the first year impacts associated with installed customer energy efficiency projects.

Lifecycle2 Energy Savings and Emissions Avoided
(Customer Energy Efficiency Programs)

  2004 2005 2006
Energy Savings
GWh (total) 3,940 5,294 6,364
Million Therms 210 80 135
Emissions Avoided (Efficiency)
CO2 Avoided (tons) 3,390,000 3,378,000 4,284,000
NOx Avoided (tons) 276 371 445
2 Lifecycle energy savings refer to the estimated energy efficiency savings over the expected lifetime of the installed customer energy efficiency projects.

Energy Consumed by Pacific Gas and Electric Company

  2004 2005 2006
Electricity Consumed (GWh)* 87 90 84
Natural Gas Consumed (MMcf)* 131 142 137
Energy Intensity (kWh/per sq. ft)* 15.1 15.6 14.7
Petroleum Consumed (gallons) 8,943,199 8,347,899 10,277,615
* These figures represent electricity and natural gas usage at the 179 facilities managed by the Utility's Corporate Real Estate department.

Clean Air Transportation Program (Customer Savings)

  2004 2005 2006
Avoided NOx Emissions (tons) 580 603 649
Avoided PM Emissions (tons) 37 39 42
Avoided CO2 Emissions (tons) 24,833 25,810 27,773
Equivalent Petroleum Gallons Displaced (x1,000) 13,637 14,174 15,252

 

Compliance Data

  2004 2005 2006
Notices of Violation (NOVs) 10 9 8
Rate of NOVs (per 100 inspections) 2.19 1.75 1.55
Releases/Exceedances 255 274 324 1
Penalties Paid $43,049 $9,230 $6,800
Agency Inspections 455 513 517
Formal Audits Performed 59 62 59
Compliance Assessments Performed 1,710 1,872 1,868
1 Figures include both PG&E- and non-PG&E-caused releases/exceedances. In 2006, for example, 58 percent were either weather-related or caused by third-party accidents.

Hazardous and Non-Hazardous Waste

  2004* 2005* 2006
PCB Waste >50 ppm PCB
Total (kilograms) 1,153,176 738,680 832,377
Incineration 556,513 326,423 267,710
Landfill 168,505 75,157 334,857
Recycled 428,158 337,100 229,810
% Recycled 37% 46% 27%**
 
PCB Waste <50 ppm PCB
Total (kilograms) 7,872,346 7,840,415 7,154,148
Incineration 406,655 510,218 354,555
Landfill 94,344 201,658 547,095
Recycled 7,371,347 7,128,539 6,252,498
% Recycled 94% 91% 87%**
 
Low-Level Radioactive Waste (Disposed)      
Diablo Canyon (cubic feet) 1,672 3,881 1,159
Humboldt Bay Power Plant (cubic feet) 3,610 N/A*** N/A***
 
RCRA Hazardous Waste (Generated)      
Total (tons) 14,597 14,160 7,836
Recycled (tons) 14,327 221 23
% Recycled 98% 2% <1%
 
Universal Waste (Generated)      
Total (pounds) 169,122 345,239 233,429
Recycled (pounds) 169,122 345,239 233,429
% Recycled 100% 100% 100%
* Values for 2004 and 2005 revised based on improved reporting procedures.
** Increases in the quantities of PCB waste generated in 2006 were due to additional site remediation and cleanup activities. These activities resulted in a proportional increase in PCB contaminated soil and debris that could not be recycled under applicable regulations. Thus, the percentage of PCB waste recycled decreased relative to prior years.
*** Low-level radioactive waste was generated and is currently being stored on site.

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