Emissions Inventory Report A Summary Presentation prepared for - - PowerPoint PPT Presentation

2015 Greenhouse Gas Emissions Inventory Report

A Summary Presentation prepared for

September 2016

• 2008: Phoenix City Council adopted a mandate to reduce

greenhouse gas (GHG) emissions to 5% below the 2005 levels by 2015.

• 2009: 2005 GHG Inventory for city operations completed

– GHG emissions projected to rise 14% if the city did not take appropriate action

• 2012: Inventory update found that Phoenix already surpassed

the 5% reduction goal

– Phoenix City Council adopted a new goal to reduce GHG emissions to 15% below 2005 levels by 2015

2015 Goal: 15% Reduction

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550,000 600,000 650,000 700,000 750,000 800,000 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 MT CO2e Year

Chart Title

No Action Taken: Projected Emissions 14% Above 2005 Emissions 2005 Baseline Emissions: 696,709 MT CO2e Original Goal: 5% Below 2005 Emissions Levels 2012 Inventory Update: Measured Emissions 7.2% Below 2005 Emissions Actual 2015 Emissions: 588,153 MT CO2e 15.6% Below 2005 Emissions

GHG Inventory Timeline

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Reductions By Reporting Sector

Fugitive and Process Emissions

• 48,367

Water Services

• 28,439

Buildings Electricity

• 17,281

Fleet Fuels

• 12,855

T&D Loss

• 2,888

Traffic Signals

• 2,488

Street Lighting

• 1,063

GAC Hauling and Regeneration 588 Employee Commute 838 Stationary Combustion 3,398

Changes in GHG Emissions Between 2005 and 2015

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2015 Reporting Scopes

Total GHG emissions related to city of Phoenix operations in 2015 was 588,153 MT CO2e emissions.

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Most Impactful Changes

1. Reduction of fugitive and process emissions (-48,367 MT CO2e) 2. Renewable energy generation

• 4.3% of energy used in 2015
• 12,550 MT CO2e emissions avoided
• Reduction of building electricity emissions and water

services emissions

• 3. Switch in the fuel profile (-12,855 MT CO2e)
• 4. LED traffic signal retrofits (-2,488 MT CO2e)

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• Updated Global Warming Potentials (GWPs)
• Updated Emissions Factors for GHG Inventories from EPA

– Including eGRID emission rates

• The 2012 inventory reported 678,150 total MT CO2e (2005)
• The 2015 inventory now reports 696,709 total MT CO2e (2005)

Changes in Data

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Greenhouse Gas IPCC AR2 GWP IPCC AR4 GWP CO2 1 1 CH4 21 25 N2O 310 298

Emissions from Phoenix municipal

• perations fell by

15.6%, from 696,709 to 588,153 metric tons

• f CO2e between

2005 and 2015.

262,175 386,046 48,488 696,709 204,350 336,776 47,026 588,153 100,000 200,000 300,000 400,000 500,000 600,000 700,000 800,000 Scope 1 Emissions Scope 2 Emissions Scope 3 Emissions Total GHG Emissions

Municipal Operations Comparison, 2005 and 2015

2005 2015

Overview of Emissions

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Scope 1 Summary 2005-2015 MT CO2e Change % Change Stationary Combustion 3,398 46% Fugitive and Process Emissions

• 48,367
• 40%

Fleet Fuels

• 12,856
• 9%

Total Scope 1 Emissions

• 57,825
• 22%

262,175 135,486 119,291 7,398 204,350 122,630 70,924 10,796 50,000 100,000 150,000 200,000 250,000 300,000 Scope 1 Emissions Fleet Fuels Fugitive and Process Emissions Stationary Combustion

Municipal Operations

CO2e Emissions

2005 2015

Scope 1 Emissions Summary

Scope 2 Summary 2005-2015 MT CO2e Change % Change Buildings Electricity

• 17,281
• 9%

Street Lighting

• 1,063
• 3%

Traffic Signals

• 2,488
• 32%

Water Services

• 28,439
• 18%

Total Scope 2 Emissions

• 49,270
• 13%

386,046 184,361 155,432 38,518 7,736 336,776 167,080 126,993 37,455 5,248

• 50,000

100,000 150,000 200,000 250,000 300,000 350,000 400,000 450,000 Scope 2 Total Emissions Buildings Electricity Water Services Street Lighting Traffic Signals

Municipal Operations

CO2e Emissions

2005 2015

Scope 2 Emissions Summary

Scope 3 Summary 2005-2015 MT CO2e Change % Change Employee Commute 838 3% Transmission and Distribution Loss

• 2,888
• 16%

GAC Hauling and Regeneration 588 N/A Total Scope 3 Emissions

• 1,462
• 3%

48,488 30,672 17,816 47,026 31,510 14,928 588 10,000 20,000 30,000 40,000 50,000 60,000 Scope 3 Emissions Employee Commute Transmission and Distribution Loss GAC Hauling and Regeneration

Municipal Operations

CO2e Emissions

2005 2015

Scope 3 Emissions Summary

Solid Waste: Landfill- Specific Characteristics

Landfill-Specific Characteristics Measured by City of Phoenix

Landfill 2005 Landfill-Specific Characteristics 2015 Landfill Specific-Characteristics Destruction Efficiency Collection Efficiency Oxidation Rate Destruction Efficiency Collection Efficiency Oxidation Rate Skunk Creek Landfill

99% 50% 10% 98% 85% 25%

27th Ave Landfill

97% 85% 10% 98% 85% 25%

Del Rio Landfill

89% 50% 10% 89% 50% 10%

Deer Valley Landfill

92% 75% 10% 92% 75% 10%

19th Avenue Landfill

98% 85% 10% 98% 85% 10%

Estes Landfill

0% 0% 0% 0% 0% 0%

SR-85 Landfill

0% 0% 0% 98% 90% 25%

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Solid Waste Emissions

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Subsector

2005 2015

Total Energy Consumption Total Energy Consumption Renewable Energy Generation Net Energy Consumption Buildings Electricity (kWh) 308,654,486 329,202,339 11,073,456 318,128,883 Buildings Natural Gas (therms) 1,202,280 1,919,621

• 1,919,621

Street Lighting (kWh) 64,485,926 71,316,538

• 71,316,538

Traffic Signals (kWh) 12,951,310 9,993,097

• 9,993,097

Water Services (kWh) 260,221,729 254,622,318 12,821,727 241,800,591 2005 2015

Buildings and Facilities Emissions

Consumption and Renewable Energy Generation by Department

Department 2005 Usage (kWh) 2015 Usage (kWh) 2015 Renewable Energy Generation Aviation 146,623,742 163,282,319 8,393,344 Convention Center 20,677,290 29,785,775 125,800 Fire 12,351,668 14,499,768 58,384 Housing Services 15,671,524 10,801,435 46,707 Human Services 2,422,428 2,412,965 262,728 PRLD-Libraries 7,940,129 8,097,824 148,251 PRLD-Recreation 31,687,827 34,908,714 70,353 Public Transit 1,258,319 1,708,064 43,788 Public Works 54,102,114 38,062,376 1,924,101 Water Services 260,221,729 254,622,318 12,821,727 Totals 552,956,771 558,181,588 23,895,183

*Department with no renewable energy generation not included in table.

Renewable Energy Summary

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16

City Fleet Emissions

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Switching from diesel to CNG and B20 decreased City fleet GHG emissions.

Water Services Emissions

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• Employee commuting emissions are dominated by gasoline

in both 2005 and 2015.

• 2015 accounted for bus and light rail which was not

reported in originally 2005. However, bus commuting miles have been backcasted for 2005.

Fuel Type

2005 2015

Commuting Miles MT CO2e Commuting Miles MT CO2e Gasoline 80,555,678 30,153 83,504,307 31,091 Electric 36,477 10 52,927 14 CNG 277,905 80 264,775 45 LPG 284,192 88 311,161 58 E85 12,609 2 460,061 80 Hydrogen

• 1,790

Bus* 3,158,885 338 3,158,239 184 Light Rail‡

• 289,157

38 Total 84,325,745 30,672 92,659,836 31,829

*Commuting miles for 2005 were backcast from 2015 levels using employment data.

‡The Valley Metro Light Rail did not exist in 2005.

Employee Commuting Emissions

2015 Greenhouse Gas Emissions Reduction Report

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Thank you to city of Phoenix employees, residents and business owners, who are on the ground supporting the city’s efforts and who are working toward reducing their own greenhouse gas emissions. It may seem like we have a long way to go, but as this report proves, we can make a difference.

2015 Greenhouse Gas Emissions Reduction Report

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Questions?

Kiki Hooton kshooton@asu.edu

• Dr. Richard Rushforth

rrushfor@asu.edu

• Dr. Rajesh Buch

rbuch@asu.edu