Buildings and Facilities


Number of PG&E’s buildings that have received LEED™ green building certification

PG&E continues to make progress toward its five-year goals for reducing energy, water and waste in office facilities and service yards. By doing so, we are reducing the environmental footprint of our facilities, while providing an enhanced workplace for our employees. A growing network of employee volunteers has been critical to our progress—engaging and training fellow employees to reduce their environmental impact at work.

Energy, Water and Waste Reduction

To meet our five-year goals, we are executing a multi-faceted strategy to invest in key facility improvements, engage employees and incorporate sustainability principles into all aspects of the management of our real estate. We continue to strive for improvement beyond our original goals.

Progress Toward PG&E's 5-Year Energy, Water and Waste Reduction Goals
  • 1 The energy reduction goal is measured in million BTUs (MMBtus) and included 156 sites in 2010 and 168 sites in 2011 and 2012.
  • 2 The water reduction goal is measured in gallons and included 91 sites in 2010, 125 sites in 2011 and 135 sites in 2012.
  • 3 The waste diversion rate measures the diversion rate in the final quarter of each year. It included administrative waste for 48 office facilities and service yard sites in 2010 and 2011. In 2012, we expanded the scope to include all non-hazardous municipal waste. We expanded further in 2013 to separately track 67 additional sites.

At our corporate headquarters, we upgraded the mechanical systems with new infrastructure and digital controls, reducing energy use while providing better workplace comfort.

Irrigation controls limit watering of landscaping based on weather and soil conditions.

Our efforts include improving the operational efficiency of our existing buildings; ensuring that equipment replacement, major remodels and new facilities meet high efficiency standards; and identifying additional projects that would result in significant efficiency improvements. We also continue to engage our broader workforce, including partnering with a Grassroots Green Network that brings together employee volunteers to support energy, water and waste reduction awareness and initiatives.

Highlights in 2012 included:

  • We reduced energy use by 3.1 percent—or about 12,990 MMBtus—at 168 offices and service yards, exceeding our 3.0 percent target. We achieved this by specifying energy efficient designs when replacing mechanical and lighting systems that were past their useful life and installing advanced controls and building automation systems. We replaced lighting in parking areas and service yards with new LED fixtures with motion sensor and timing controls. We also incorporated energy efficiency considerations into major remodel projects. In 2013, our goal is to achieve an additional 3.5 percent reduction.
  • We reduced water use by 2.3 percent—or 3.1 million gallons—at 135 offices and service yards, exceeding our 2.0 percent target. To achieve these reductions, we reduced landscape water use through enhanced maintenance and by installing “smart” irrigation controllers at eleven sites to govern the use of sprinkler systems. In 2013, our goal is to achieve an additional 2.0 percent reduction.
  • We reached a 78 percent waste diversion rate for 48 sites, exceeding our 73 percent target. This total includes all non-hazardous municipal waste generated within and outside the buildings. Key steps included ensuring yard bins were the right size, upgrading service and adding composting and single-stream recycling at select locations. Our 2013 goal is to achieve an 81 percent waste diversion rate. We will also aim for a 61 percent diversion rate at an additional 67 sites.

Community Partnership to Reduce Waste

BARC facility

PG&E facilities in Bakersfield partnered with BARC, a local non-profit committed to helping people with developmental disabilities. BARC now provides our sites with expanded recycling services which reduces our waste while supporting the community.

Energy Consumption Statistics

These figures represent electricity and natural gas usage at 168 facilities managed by our Corporate Real Estate Strategy and Services department.

Energy Consumed by Pacific Gas and Electric Company
  • 1 The data reflects the 12-month period from December to November and is normalized for weather. Additionally, usage for years 2010-2011 has been updated to reflect improved accuracy of meter information.
  • 2 Figures are reported in the industry standard of BTU per square foot, which incorporates all of the energy used in a facility into one comparative number.

Water Use Statistics

In 2012, we made continued progress toward developing our “water footprint.”

Please see the Water Conservation and Management section for statistics on PG&E’s water usage.

Waste Generation Statistics

PG&E strives to minimize the overall amount of waste generated; compost organic waste and recycle non-hazardous waste, such as glass, paper and certain metals. These figures represent the total waste diverted from the landfill at 48 sites managed by our Corporate Real Estate Strategy and Services department.

Waste Diversion at Facilities1

Waste Diversion at Facilities

1 The tonnage data reflects all of the non-hazardous municipal waste at 48 sites managed by PG&E’s Corporate Real Estate Strategy and Services department for the 12 months from October 2011 to September 2012. The diversion rate reflects the final quarter as measured one quarter in arrears (July to September 2012).

Other examples of waste reduction efforts in 2012 include the following:

  • We recycled more than 23 million pounds of scrap iron, aluminum and copper from conductors, meters and miscellaneous material. We also recycled more than two million pounds of recovered meters, 15 million pounds of transformers and 147,000 pounds of plastic, including pipe and hard hats.
  • We recycled or reused nearly 150 tons of e-waste, including consumer electronic devices, CPUs, monitors, servers, printers, and other equipment.
  • We recycled nearly 115,000 pounds of steel and copper from Humboldt Bay Power Plant and Diablo Canyon Power Plant.

In the normal course of business, utility operations generate certain hazardous wastes. Waste is also created during the remediation and cleanup of historic legacy sites.

Federal hazardous waste management statutes include the Resource Conservation and Recovery Act and the Toxic Substances Control Act. California has its own set of hazardous waste management laws and regulations, which are more stringent and encompass a broader scope of waste streams. For example, wastes such as used oil are subject to California’s hazardous waste requirements but are not regulated as hazardous waste under federal law.

PG&E manages all hazardous waste in accordance with federal and state regulations. Our comprehensive approach includes providing guidance and training to employees to ensure that waste is properly managed from the point of generation to its ultimate disposal or recycling.

Additionally, while PG&E works to reduce the amount of hazardous waste generated, certain projects such as upgrades to our infrastructure or remediation of historical contamination may increase the amount of hazardous waste generated in a given year.

The following table provides statistics on PG&E’s waste generation.

Hazardous and Other Waste
2010 2011 2012
Total Hazardous Waste (tons) 33,449 114,999 117,553
RCRA1Hazardous Waste 1,360 4,286 13,204
TSCA2 Hazardous Waste 1,863 1,041 1,783
California Regulated Hazardous Waste 30,226 109,672 102,566
Federal Regulated Hazardous Waste (TSCA)—PCB Waste ≥50 ppm PCB (tons)
Total 1,863 1,041 1,783
Incineration 306 230 290
Landfill 1,479 379 1,204
Recycled 77 432 289
% Recycled 4.2% 41.5% 16.2%
California Regulated Hazardous Waste (Non-RCRA)3
Total 30,226 109,672 102,566
Disposed 29,163 105,127 97,580
Recycled 1,063 4,545 4,986
% Recycled 3.5% 4.1% 4.9%
Universal Waste (tons)
Total 164 159 200
Recycled 164 159 200
% Recycled 100% 100% 100%
Low-Level Radioactive Waste
Diablo Canyon Power Plant
Disposed (cubic feet) 367 660 453
Humboldt Bay Power Plant
Disposed (cubic feet) 52,009 130,602 12,344
Radioactively Cleared Waste
Diablo Canyon Power Plant
Disposed (pounds) N/A 113,767 133,917
Humboldt Bay Power Plant
Disposed (pounds) N/A N/A 2,819,197
Recycled Materials from Power Plants
Diablo Canyon Power Plant
Steel Recycled (pounds) 115,845 30,300 68,463
Copper Recycled (pounds) 9,300 6,250 4,215
Lead Recycled (pounds) N/A 15,500 N/A
Humboldt Bay Power Plant
Steel Recycled (pounds) 743,564 54,856 41,700
Copper Recycled (pounds) 1,475 N/A N/A
Lead Recycled (pounds) N/A N/A N/A
  • 1 Refers to the Resource Conservation and Recovery Act (RCRA)
  • 2 Refers to the Toxic Substances Control Act (TSCA).
  • 3 These figures include PCB Waste <50 ppm PCB.

Air Emissions

To comply with stringent local air quality regulations, PG&E is focused on minimizing air emissions from its conventional sources of power generation. The following figures reflect emissions from PG&E-owned generation sources.

Air Emissions1
  2010 2011 2012
Total NOX Emissions (tons) 904 144 158
Humboldt Bay Power Plant2 819 N/A N/A
Humboldt Bay Generating Station3 5 23 25
Gateway Generating Station 78 73 78
Colusa Generating Station4 1.5 48 55
NOX Emissions Rates (lbs/MWh)
Humboldt Bay Power Plant 4.27 N/A N/A
Humboldt Bay Generating Station 0.08 0.10 0.12
Gateway Generating Station 0.05 0.06 0.05
Colusa Generating Station 0.04 0.05 0.04
Fossil Plants 0.49 0.06 0.05
All Plants 0.06 0.008 0.01
Total SO2 Emissions (tons) 42 12 15
Humboldt Bay Power Plant 34 N/A N/A
Humboldt Bay Generating Station 1 2 1
Gateway Generating Station 7 6 8
Colusa Generating Station 0.14 4 6
SO2 Emissions Rates (lbs/MWh)
Humboldt Bay Power Plant 0.179 N/A N/A
Humboldt Bay Generating Station 0.015 0.009 0.005
Gateway Generating Station 0.004 0.005 0.005
Colusa Generating Station 0.004 0.004 0.004
Fossil Plants 0.023 0.005 0.005
All Plants 0.003 0.0007 0.0009
Total Particulate Matter Emissions (tons) 62 96 99
Humboldt Bay Power Plant 23 N/A N/A
Humboldt Bay Generating Station 16 51 51
Gateway Generating Station 22 19 22
Colusa Generating Station 0.9 27 26
Total CO Emissions (tons) 123 43 46
Humboldt Bay Power Plant 100 N/A N/A
Humboldt Bay Generating Station 9 15 14
Gateway Generating Station 9 10 8
Colusa Generating Station 6 18 24
Total VOC Emissions (tons) 54 74 60
Humboldt Bay Power Plant 28 N/A N/A
Humboldt Bay Generating Station 19 66 47
Gateway Generating Station 8 7 8
Colusa Generating Station 0.02 1 4
  • 1 Due to rounding conventions, some data above sum to an amount greater or less than the totals provided. Additionally, there were no reportable mercury emissions from PG&E’s facilities during 2010 to 2012.
  • 2 The Humboldt Bay Power Plant (Humboldt Bay) facilities, two operating fossil fuel-fired plants and two mobile turbines, were retired at the end of September 2010.
  • 3 The new high-performance Humboldt Bay Generating Station became operational in September 2010.
  • 4 Colusa Generating Station became operational in December 2010.
Benchmarking NOX and SO2 Emissions1
2009 2010 2011
National average, NOX 1.20 lbs/MWh 1.20 lbs/MWh 1.19 lbs/MWh
PG&E’s emissions rate, NOX 0.09 lbs/MWh 0.06 lbs/MWh 0.008 lbs/MWh
National average, SO2 3.11 lbs/MWh 2.65 lbs/MWh 2.44 lbs/MWh
PG&E’s emissions rate, SO2 0.003 lbs/MWh 0.003 lbs/MWh 0.0007 lbs/MWh
  • 1 Source of national average data is the U.S. Energy Information Administration’s Electric Power Annual Report.

Investing in Green Buildings

We have increased the number of PG&E LEED™-certification projects to 12 as part of our ongoing efforts to certify new buildings and large remodel projects. This includes LEED Platinum certification for our San Francisco Service Center Garage remodel. As shown below, this includes a range of facilities throughout our service area.

Facility Name Location Scope LEED™ level Status
245 Market Street San Francisco Existing building LEED-EB Gold Received April 2007
Stockton Customer Service Office Stockton Major remodel—leased building LEED-CI Silver Received March 2010
Gateway Generating Station—Administration Building Antioch New building LEED-NC Certified Received March 2010
San Ramon Office Building San Ramon Major remodel—leased building LEED-CI Certified Received March 2010
Grid Control Center Vacaville New building LEED-NC Silver Received April 2010
77 Beale, 25th Floor San Francisco Major remodel LEED-CI Gold Received June 2011
Santa Rosa Service Center—Front Building Santa Rosa Major remodel LEED-NC Certified Received September 2011
Bakersfield Service Center Operations Building Bakersfield Major remodel LEED-NC Certified Received January 2012
Stockton Service Center Operations Building 2 Stockton Major remodel LEED-NC Silver Received January 2012
Stockton Service Center Operations Building 1 Stockton Major remodel LEED-NC Silver Received April 2012
Santa Rosa Service Center—Back Building Santa Rosa Major remodel LEED-NC Certified Received May 2012
Colusa Generating Station—Administration Building Colusa New building LEED-Certified (forecasted) Expected in 2013
San Francisco Service Center Garage San Francisco Major remodel LEED-NC Platinum Received in 2013
General Office Headquarters Complex San Francisco Existing Building LEED-EBOM Gold (forecasted) Expected in 2013
Energy Procurement Alternate Headquarters Vacaville New Building LEED-NC Certified (forecasted) Expected in 2014
image of PG&E’s headquarters
PG&E’s 245 Market Street building in San Francisco, which is part of the company’s corporate headquarters, has been LEED™-certified since 2007.

In 2007, PG&E achieved LEED EB Gold certification for our 245 Market Street building in San Francisco, which is part of our corporate headquarters. In 2012, we resubmitted for the entire site, comprised of six combined structures that:

  • Achieved an ENERGY STAR score of 92, meaning they are 92 percent more energy efficient than similar buildings.
  • Diverts more than 90 percent of its waste from landfill through recycling and composting.
  • Uses low-flow plumbing fixtures and automatic faucets to reduce potable water use by up to 40 percent.
  • Uses energy efficient LED lighting in its garage area.
  • Continues to upgrade its lighting and mechanical systems and controls.
  • Offers alternative fueling stations and preferred parking for bicycles, van pools and alternative-fuel vehicles.