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Performance Data +

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. Learn more about the definitions for data provided.

Environmental +

Air +

2017 2018 2019 2020 2021
Emissions From APS Owned Generation
CO2 (metric tons) 10,730,993 11,918,628 12,206,350 11,147,881 11,248,266
SO2 (tons) 3,754 2,415 2,275 1,784 2,326
NOX (tons) 15,133 8,456 6,547 5,102 5,496
PM10 (tons) 468 576 578 456 478
Hg (tons) 0.042 0.039 0.020 0.016 0.070
CO (tons) 1,826 1,917 2,179 1,302 1,482
Pb (tons) 0.147 0.177 0.157 0.047 0.030
VOC (tons) 51.74 81.93 69.02 64 57
Emission Rate From APS Owned Generation
CO2 (lb/MWh) 949 1037 1008 921 971
SO2 (lb/MWh) 0.301 0.191 0.170 0.134 0.182
NOX (lb/MWh) 1.214 0.668 0.490 0.382 0.431
PM10 (lb/MWh) 0.038 0.045 0.043 0.034 0.038
Hg (lb/GWh) 0.003 0.003 0.001 0.001 0.005
CO (lb/MWh) 0.146 0.151 0.163 0.098 0.116
Pb (lb/GWh) 0.012 0.014 0.012 0.004 0.002
VOC (lb/MWh) 0.004 0.006 0.005 0.005 0.004

Carbon and Greenhouse Gas Reporting +

2017 2018 2019 2020 2021
Carbon Intensity (lb/MWh) 649 695 681 630 655
Scope 1 Greenhouse Gas Emissions (MT CO2e) 10,822,462 12,008,503 12,298,802 11,257,147 11,329,468
Scope 2 Market-Based (MT CO2e) *Note boundary change starting in 2020 13,536 13,865 13,694 116,939 112,162

Environmental Violations +

2017 2018 2019 2020 2021
Reportable Environmental Incidents 8 3 3 2 2
Environmental Notices of Violation 3 0 1 1 1
Environmental Fines $0 $0 $1,200 $1,832 $1,979

Waste +

2017 2018 2019 2020 2021
Recycling
Recycled Materials (lbs) 16,707,015 24,117,604 20,050,466 19,583,316 18,024,527
Diversion Percent 44% 54% 47% 31% 33%
Coal Ash
Coal Ash Generated (Tons) 1,151,841 1,164,922 1,231,912 1,158,385 1,022,843
Coal Ash Diverted From Landfill (Tons) 633,833 668,799 718,420 583,616 164,923
Coal Ash Beneficially Used (%) 55% 57% 58% 50% 16%
Radioactive Waste
Low-Level radioactive Waste (Cubic Feet) 28,638 32,803 25,474 30,002 TBD
Hazardous Waste
Non-Episodic Hazardous Waste Generation (Tons) 8.5 7.3 6.1 2.3 3.87
Episodic Hazardous Waste Events Generation (Tons) 84 16.1 47.4 5 0
PCB Data
Number Of Pieces 69 73 85 85 70
Weight (Kilograms) 15,047 15,678 37,791 16,388 28,772

Water +

2017 2018 2019 2020 2021
Water Usage For Generation At APS Owned & Operated Plants
Groundwater (Acre-Feet) 16,538 16,590 14,867 16,378 13,009
Surface Water (Acre-Feet) 13,891 14,770 15,635 17,153 15,027
Effluent (Acre-Feet) 77,150 74,707 74,261 73,543 75,853
Total Water (Acre-Feet) 107,579 106,067 104,763 107,074 103,889
Intensity (gal/MWh) 693 686 651 659 663

Social +

Customers & Communities +

2017 2018 2019 2020 2021
Total Giving $ 9,800,000 $ 10,800,000 $ 9,800,000 $11,100,000 $12,900,000
Volunteer Hours 110,000 121,000 90,000 82,000 91,000
Employee Involvement in Community Organizations --- --- --- 500 400
Energy Support Program Funding $21,852,000 $18,506,000 $21,765,000 $27,706,000 $34,150,000

Safety & Workforce +

2017 2018 2019 2020 2021
OSHA Recordable Injuries Or Illness Cases 34 36 41 40 53
OSHA Recordable Injuries Or Illness Cases excluding COVID-19 34 36 41 25 40
Recordable Incident Rate .54 .57 .66 .64 .89
DART Rate (Days Away Restricted and Transfer) .19 .41 .38 .59 .79
Lost-Time Case Rate .08 .22 .14 .37 .55
Serious Injury and Fatalities --- 4 9 4 7
Work-Related Fatalities 0 0 1 0 0
Employee Engagement Score --- --- 83% 84.5% 85%
Average Number Of Employees 6,340 6,296 6,249 6,112 6,008
Total Hours Training 168,490 168,586 96,701 83,396 95,123
See our Consolidated EEO-1 Data Report

Operations and Governance +

Grid Reliability +

2017 2018 2019 2020 2021
SAIDI 74.53 86.26 86.80 78.58 87.36
SAIFI 0.75 0.84 0.84 0.85 0.89
CAIDI 98.99 102.79 103.40 92.65 97.93

Energy +

2017 2018 2019 2020 2021
Total Energy Sources (MWh) 32,762,000 32,646,000 33,402,000 33,668,000 34,076,000
Total Renewable Energy (MWh) 2,905,708 2,992,274 2,946,449 2,982,329 2,695395
Annual Energy Efficiency Savings (MWh) 628,539 392,022 516,383 585,637 319,328
See our statistical report for more energy data

Financial Performance +

2017 2018 2019 2020 2021
Total Shareholder Returns 12.7% 3.6% 9.0% -7.66% -7.79%
PNW Earnings Per Share $4.35 $4.54 $4.77 $4.87 $5.47

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 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 +

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 2022 Mapping Report

Task Force on Climate-Related Financial Disclosures +

TCFD 2021 Alignment Report

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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