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Performance Metrics | Reports | Corporate Policies and Codes of Conduct | Forward-Looking Statements

Updated: April 2023



Performance Metrics

We have a number of goals and environmental and social performance indicators that we use to measure progress and hold ourselves accountable. Find our most recent environmental, social and governance data below.

Download the data in Excel

Environmental +

Air +

2018 2019 2020 2021 2022
Emissions From APS Owned Generation
CO2 (metric tons) 11,918,628 12,206,350 11,147,881 11,248,266 12,553,688
SO2 (tons) 2,415 2,275 1,784 2,326 2,504
NOX (tons) 8,456 6,547 5,102 5,496 6,022
PM10 (tons) 576 578 456 478 510
Hg (tons) 0.039 0.020 0.016 0.070 0.079
CO (tons) 1,917 2,179 1,302 1,482 1,780
Pb (tons) 0.177 0.157 0.047 0.030 0.033
VOC (tons) 81.93 69.02 64 57 47.10
Emission Rate From APS Owned Generation
CO2 (lb/MWh) 1037 1008 921 971 1,008
SO2 (lb/MWh) 0.191 0.170 0.134 0.182 0.182
NOX (lb/MWh) 0.668 0.490 0.382 0.431 0.439
PM10 (lb/MWh) 0.045 0.043 0.034 0.038 0.037
Hg (lb/GWh) 0.003 0.001 0.001 0.005 0.006
CO (lb/MWh) 0.151 0.163 0.098 0.116 0.130
Pb (lb/GWh) 0.014 0.012 0.004 0.002 0.002
VOC (lb/MWh) 0.006 0.005 0.005 0.004 0.003

Carbon and Greenhouse Gas Reporting +

2018 2019 2020 2021 2022
Carbon Intensity (lb/MWh) 695 681 630 655 714
Scope 1 Greenhouse Gas Emissions (MT CO2e) 12,008,503 12,298,802 11,257,147 11,329,468 12,665,061
Scope 2 Market-Based (MT CO2e) *Note boundary change starting in 2020 13,865 13,694 116,939 112,162 91,739

Environmental Violations +

2018 2019 2020 2021 2022
Reportable Environmental Incidents 3 3 2 2 6
Environmental Notices of Violation 0 1 1 1 2
Environmental Fines $0 $1,200 $1,832 $1,979 $4,237

Waste +

2018 2019 2020 2021 2022
Recycling
Recycled Materials (lbs) 24,117,604 20,050,466 19,583,316 18,024,527 23,360,585
Diversion Percent 54% 47% 31% 33% 55%
Coal Ash
Coal Ash Generated (tons) 1,164,922 1,231,912 1,158,385 1,022,843 1,253,253
Coal Ash Diverted From Landfill (tons) 668,799 718,420 583,616 164,923 206,960
Coal Ash Beneficially Used (%) 57% 58% 50% 16% 17%
Radioactive Waste
Low-Level radioactive Waste (cubic feet) 32,803 25,474 30,002 27,200 21,030
Hazardous Waste
Non-Episodic Hazardous Waste Generation (tons) 7.3 6.1 2.3 3.87 3.58
Episodic Hazardous Waste Generation (tons) 16.1 47.4 5 0 57.2
PCB Data
Number Of Pieces 73 85 85 70 75
Weight (kilograms) 15,678 37,791 16,388 28,772 17,960

Water +

2018 2019 2020 2021 2022
Water Usage For Generation At APS Owned & Operated Plants
Groundwater (acre-feet) 16,590 14,867 16,378 13,009 12,979
Surface Water (acre-feet) 14,770 15,635 17,153 15,027 19,513
Effluent (acre-feet) 74,707 74,261 73,543 75,853 75,441
Total Water (acre-feet) 106,067 104,763 107,074 103,889 106,744
Intensity (gal/MWh) 686 651 659 663 651

Social +

Communities +

2018 2019 2020 2021 2022
Total Giving $ 10,800,000 $ 9,800,000 $11,100,000 $12,900,000 $14,700,000
Total Giving - Human Services --- --- --- $5,425,186 $5,350,804
Total Giving - Community Development --- --- --- $1,774,089 $3,537,895
Total Giving - Education --- --- --- $4,289,727 $3,277,468
Total Giving - Arts and Culture --- --- --- $752,827 $1,192,819
Total Giving - Health Services --- --- --- --- $599,057
Total Giving - Small Business --- --- --- $93,400 $386,658
Total Giving - Environmental --- --- --- $359,966 $329,472
Total Giving - Other --- --- --- $272,314 $28,893
Volunteer Hours 121,000 90,000 82,000 91,000 83,500
Employee Involvement in Community Organizations --- --- Over 500 Over 400 Over 250

Customers +

2018 2019 2020 2021 2022
JD Power Customer Satisfaction Score - Residential 702 680 735 734 741
JD Power Customer Satisfaction Score - Business 739 755 799 770 804
Annual Investment in Energy Efficiency Programs $32,912,472 $27,621,115 $40,803,142 $52,499,258 $57,475,148
Annual Energy Efficiency Savings (MWh) 392,022 516,383 585,637 319,328 354,153
Annual Energy Efficiency Peak Capacity Savings (MW) 112 192 198 271 322
Energy Support Program Enrollment --- 59,400 72,400 84,600 74,600
Energy Support Program Funding --- $21,765,000 $27,707,000 $34,148,000 $33,040,000
Crisis Bill Assistance Funding --- --- --- --- $2,500,000

Safety +

2018 2019 2020 2021 2022
OSHA Recordable Injuries or Illness Cases excluding COVID-19 36 41 25 40 23
OSHA Recordable Injuries or Illness Cases 36 41 40 53 27
Recordable Incident Rate .57 .66 .64 .89 .46
Days Away Restricted and Transfer (DART) .41 .38 .59 .79 .41
Lost-Time Case Rate .22 .14 .37 .55 .27
Serious Injury or Fatality 4 9 4 7 3
Work-Related Fatalities 0 1 0 0 0
Near-Miss Frequency Rate 3.87 3.09 1.91 1.93 1.48

Workforce +

2018 2019 2020 2021 2022
Employee Diversity (%)
Ethnically or Racially Diverse --- 32% 32% 33% 35%
Female --- 24% 24% 25% 26%
Veteran --- 17% 17% 16% 15%
New Hire Diversity (%)
Ethnically or Racially Diverse --- 44% 36% 44% 44%
Female --- 29% 36% 37% 40%
Veteran --- 17% 18% 10% 7%
Officer Diversity (%)
Female Officers --- 30% 33% 40% 39%
Ethnically or Racially Diverse --- --- --- --- 18%
Employee Tenure (years) --- 12 12 12.77 12.57
Total Employee Turnover %
Total Employee Turnover % --- 7.5% 7.5% 9.8% 11%
Turnover Related to Retirements --- 3% 3.7% 4.1% 3.6%
Employee Engagement Score --- 83% 84.5% 85% 83%
Average Number Of Employees 6,296 6,249 6,112 6,008 5,842
Total Hours Training 168,586 177,422 246,616 95,123 77,618
See our Consolidated EEO-1 Data Report

Operations and Governance +

Grid Reliability +

2018 2019 2020 2021 2022
SAIDI 86.26 86.80 78.58 87.36 84.05
SAIFI 0.84 0.84 0.85 0.89 0.89
CAIDI 102.79 103.40 92.65 97.93 94.23

Energy +

2018 2019 2020 2021 2022
Total Energy Sources (MWh) 32,646,000 33,402,000 33,668,000 34,076,000 36,028,000
Total Renewable Energy (MWh) 2,992,274 2,946,449 2,982,329 2,695,395 2,558,340
See our statistical report for more energy data

Financial Performance +

2018 2019 2020 2021 2022
Total Shareholder Returns 3.6% 9.0% -7.7% -7.8% 13.1%
PNW Earnings Per Share $4.54 $4.77 $4.87 $5.47 $4.26

Reports +

We report annually on our activities to manage climate change risk, energy and greenhouse gas emissions, and water security through CDP. In addition, we participate in the Edison Electric Institute (EEI) environmental, social, and governance reporting template and align to the Task Force on Climate-Related Financial Disclosures (TCFD) framework and Sustainability Accounting Standards Board (SASB) standards for electric utilities.

CDP +

Programme Response Water 2023 Programme Response Climate Change 2023 CDP 2023 Third Party Verification Programme Response Water 2022 Programme Response Climate Change 2022 CDP 2022 Third Party Verification Programme Response Water 2021 Programme Response Climate Change 2021 CDP 2021 Third Party Verification Programme Response Water 2020 Programme Response Climate Change 2020 CDP 2020 Third Party Verification Programme Response Water 2019 Programme Response Climate Change 2019 CDP 2019 Third Party Verification Programme Response Climate Change 2018 Programme Response Water 2018 CDP 2018 Third Party Verification

Edison Electric Institute ESG Reporting +

2023 Quantitative Report 2023 Qualitative Report 2022 Quantitative Report 2022 Qualitative Report 2021 Quantitative Report 2021 Qualitative Report 2020 Quantitative Report 2020 Qualitative Report 2019 Quantitative Report 2019 Qualitative Report 2018 Quantitative Report 2018 Qualitative Report

Sustainability Accounting Standards Board +

SASB 2023 Mapping Report SASB 2022 Mapping Report

Task Force on Climate-Related Financial Disclosures +

TCFD 2023 Alignment Report TCFD 2022 Alignment Report TCFD 2021 Alignment Report

Corporate Policies and Codes of Conduct +

As stewards of Arizona, we do what is right for the people and prosperity of our state. The APS promise, and the vision to create a sustainable energy future for Arizona, guides our sustainability initiatives. To ensure our success, we maintain a strong corporate governance structure with policies and practices that support the execution of our strategic priorities to achieve our mission, including those focused on our customers, communities, employees and stakeholders.

Human Rights Policy Safety Policy Political Participation Policy Code of Ethical Conduct Supplier Code of Ethical Conduct Board of Directors Documents and Charters Public Policy Engagement

Forward-Looking Statements +

This report contains forward-looking statements based on current expectations, including statements regarding our earnings guidance and financial outlook and goals. Read full disclaimer.

Forward-Looking Statements

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