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

Updated: April 2024



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 and definitions in Excel

Environmental +

Air +

2019 2020 2021 2022 2023
Emissions From APS Owned Generation
CO2 (metric tons) 12,206,350 11,147,881 11,248,266 12,553,688 10,546,113
SO2 (tons) 2,275 1,784 2,326 2,504 2,090
NOX (tons) 6,547 5,102 5,496 6,022 4,634
PM10 (tons) 578 456 478 510 370
Hg (tons) 0.020 0.016 0.070 0.079 0.055
CO (tons) 2,179 1,302 1,482 1,780 1,479
Pb (tons) 0.157 0.047 0.030 0.033 0.028
VOC (tons) 69.02 64 57 47.10 51.032
Emission Rate From APS Owned Generation
CO2 (lb/MWh) 1008 921 971 1,008 922
SO2 (lb/MWh) 0.170 0.134 0.182 0.182 0.166
NOX (lb/MWh) 0.490 0.382 0.431 0.439 0.367
PM10 (lb/MWh) 0.043 0.034 0.038 0.037 0.029
Hg (lb/GWh) 0.001 0.001 0.005 0.006 0.004
CO (lb/MWh) 0.163 0.098 0.116 0.130 0.117
Pb (lb/GWh) 0.012 0.004 0.002 0.002 0.002
VOC (lb/MWh) 0.005 0.005 0.004 0.003 0.004

Carbon and Greenhouse Gas Reporting +

2019 2020 2021 2022 2023
Carbon Intensity (including the Energy Efficiency and Distributed Generation Amounts) (lb/MWh) 681 630 655 714 641
Scope 1 Greenhouse Gas Emissions (MT CO2e) 12,298,802 11,257,147 11,329,468 12,665,061 TBA
Scope 2 Market-Based (MT CO2e) *Note boundary change starting in 2020 13,694 116,939 112,162 91,739 TBA

Environmental Violations +

2019 2020 2021 2022 2023
Reportable Environmental Incidents 3 2 2 6 4
Environmental Notices of Violation 1 1 1 2 0
Environmental Fines $1,200 $1,832 $1,979 $4,237 $0

Waste +

2019 2020 2021 2022 2023
Recycling
Recycled Materials (lbs) 20,050,466 19,583,316 18,024,527 23,360,585 19,624,095
Diversion Percent 47% 31% 33% 55% 70%
Coal Ash
Coal Ash Generated (tons) 1,231,912 1,158,385 1,022,843 1,253,253 937,855
Coal Ash Diverted From Landfill (tons) 718,420 583,616 164,923 206,960 258,849
Coal Ash Beneficially Used (%) 58% 50% 16% 17% 28%
Radioactive Waste
Low-Level radioactive Waste (cubic feet) 25,474 30,002 27,200 21,030 TBA
Hazardous Waste
Non-Episodic Hazardous Waste Generation (tons) 6.1 2.3 3.87 3.58 5.24
Episodic Hazardous Waste Generation (tons) 47.4 5 0 57.2 13.84
PCB Data
Number Of Pieces 85 85 70 75 47
Weight (kilograms) 37,791 16,388 28,772 17,960 12,817

Water +

2019 2020 2021 2022 2023
Water Usage For Generation At APS Owned & Operated Plants
Groundwater (acre-feet) 14,867 16,378 13,009 12,979 12,073
Surface Water (acre-feet) 15,635 17,153 15,027 19,513 17,696
Effluent (acre-feet) 74,261 73,543 75,853 75,441 72,492
Total Water (acre-feet) 104,763 107,074 103,889 106,744 102,114
Intensity (gal/MWh) 651 659 663 651 668

Social +

Communities +

2019 2020 2021 2022 2023
Total Giving $ 9,800,000 $11,100,000 $12,900,000 $14,700,000 $10,230,052
Total Giving - Human Services --- --- $5,425,186 $5,350,804 $2,596,944
Total Giving - Community Development --- --- $1,774,089 $3,537,895 $2,258,201
Total Giving - Education --- --- $4,289,727 $3,277,468 $2,722,338
Total Giving - Arts and Culture --- --- $752,827 $1,192,819 $882,546
Total Giving - Health Services --- --- --- $599,057 $569,350
Total Giving - Small Business --- --- $93,400 $386,658 $436,395
Total Giving - Environmental --- --- $359,966 $329,472 $296,134
Total Giving - Other --- --- $272,314 $28,893 $468,144
Volunteer Hours 90,000 82,000 91,000 83,500 79,286
Value of Volunteer Hours --- --- $2,600,000 $2,500,000 $2,400,000
Employee Involvement in Community Organizations --- Over 500 Over 400 Over 250 152

Customers +

2019 2020 2021 2022 2023
JD Power Customer Satisfaction Score - Residential 680 735 734 741 725
JD Power Customer Satisfaction Score - Business 755 799 770 804 772
Annual Investment in Energy Efficiency Programs $27,621,115 $40,803,142 $52,499,258 $57,475,148 $69,343,851
Annual Energy Efficiency Savings (MWh) 516,383 585,637 319,328 354,153 408,644
Annual Energy Efficiency Peak Capacity Savings (MW) 192 198 271 322 334
Energy Support Program Enrollment 59,400 72,400 84,600 74,600 76,860
Energy Support Program Funding $21,765,000 $27,707,000 $34,148,000 $33,040,000 $19,400,000
Crisis Bill Assistance Funding --- --- --- $2,500,000 $1,100,000

Safety +

2019 2020 2021 2022 2023
OSHA Recordable Injuries or Illness Cases 41 40 53 27 39
Recordable Incident Rate .66 .64 .89 .46 .63
Days Away Restricted and Transfer (DART) .38 .59 .79 .41 .50
Lost-Time Case Rate .14 .37 .55 .27 .33
Serious Injury or Fatality 9 4 7 3 8
Work-Related Fatalities 1 0 0 0 0
Near-Miss Frequency Rate 3.09 1.91 1.93 1.48 1.29

Workforce +

2019 2020 2021 2022 2023
Employee Diversity (%)
Ethnically or Racially Diverse 32% 32% 33% 35% 35%
Female 24% 24% 25% 26% 26%
Veteran 17% 17% 16% 15% 13%
New Hire Diversity (%)
Ethnically or Racially Diverse 44% 36% 44% 44% 42%
Female 29% 36% 37% 40% 35%
Veteran 17% 18% 10% 7% 7%
Officer Diversity (%)
Female Officers 30% 33% 40% 39% 39%
Ethnically or Racially Diverse --- --- --- 18% 18%
Employee Turnover
Employee Tenure (years) 12 12 12.77 12.57 11.64
Total Employee Turnover % 7.5% 7.5% 9.8% 11% 8%
Turnover Related to Retirements % 3% 3.7% 4.1% 3.6% 2.7%
Employee Engagement Score 83% 84.5% 85% 83% 85%
Average Number Of Employees 6,249 6,112 6,008 5,842 5,900
Total Hours Training 177,422 246,616 95,123 77,618 59,332
See our Consolidated EEO-1 Data Report

Operations and Governance +

Grid Reliability +

2019 2020 2021 2022 2023
SAIDI 86.80 78.58 87.36 84.05 98.58
SAIFI 0.84 0.85 0.89 0.89 0.88
CAIDI 103.40 92.65 97.93 94.23 112.40

Energy +

2019 2020 2021 2022 2023
Total Energy Sources (MWh) 33,402,000 33,668,000 34,076,000 36,028,000 36,822,000
Total Renewable Energy (MWh) 2,946,449 2,982,329 2,695,395 2,558,340 2,504,507
See our statistical report for more energy data

Financial Performance +

2019 2020 2021 2022 2023
Total Shareholder Returns 9.0% -7.7% -7.8% 13.1% -1.2%
PNW Earnings Per Share $4.77 $4.87 $5.47 $4.26 $4.41

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.

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.

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.

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