esg-reporting

Water_English

Climate_English

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 +

Water +

2016 2017 2018 2019 2020
Water Usage for Generation at APS owned & operated plants
Groundwater (acre-feet) 13,759 16,538 16,590 14,867 16,378
Surface Water (acre-feet) 12,771 13,891 14,770 15,635 17,153
Effluent (acre-feet) 75,385 77,150 74,707 74,261 73,543
Total water (acre-feet) 101,915 107,579 106,067 104,763 107,074
Intensity (gal/MWh) 661 693 686 651 659

Air +

2016 2017 2018 2019 2020
Emissions from APS owned generation
CO2 (metric tons) 10,011,410 10,730,993 11,918,628 12,206,350 11,147,881
SO2 (tons) 3,798 3,754 2,415 2,275 1,784
NOX (tons) 14,866 15,133 8,456 6,547 5,102
PM10 (tons) 518 468 576 578 456
Hg (tons) 0.042 0.042 0.039 0.020 0.016
CO (tons) 1,156 1,826 1,917 2,179 1,302
Pb (tons) 0.086 0.147 0.177 0.157 0.047
VOC (tons) 48 51.74 81.93 69.02 64
Emission Rate from APS owned generation
CO2 lb/MWh 890 949 1037 1008 921
SO2 lb/MWh 0.306 0.301 0.191 0.170 0.134
NOX lb/MWh 1.199 1.214 0.668 0.490 0.382
PM10 lb/MWh 0.042 0.038 0.045 0.043 0.034
Hg lb/GWh 0.003 0.003 0.003 0.001 0.001
CO lb/MWh 0.093 0.146 0.151 0.163 0.098
Pb lb/GWh 0.007 0.012 0.014 0.012 0.004
VOC lb/MWh 0.004 0.004 0.006 0.005 0.005

Waste +

2016 2017 2018 2019 2020
Recycling
Recycled materials (lbs) 22,161,149 16,707,015 24,117,604 20,050,466 19,583,316
Coal Ash
Coal Ash generated (tons) 1,099,205 1,151,841 1,164,922 1,231,912 1,158,385
Coal Ash diverted from landfill (tons) 538,402 633,833 668,799 718,420 583,616
Coal Ash beneficially used (%) 49% 55% 57% 58% 50%
Radioactive Waste
Low-level radioactive waste (cubic feet) 25,486 28,638 32,803 25,474 30,002
Hazardous Waste
Non-Episodic Hazardous Waste Generation (tons) 8.3 8.5 7.3 6.1 2.3
Episodic Hazardous Waste Events Generation (tons) 84 16.1 47.4 5
PCB Data
Number of pieces 185 69 73 85 85
Weight (kilograms) 57,633 15,047 15,678 37,791 16,388
Toxic Release Inventory
Coal plant releases to air (1,000 pounds) 78 76 82 54 Not yet available
Coal plant releases to water (1,000 pounds) 3 - 3 1 Not yet available
Coal plant releases to land (1,000 pounds) 1,210 1,197 1,113 1,146 Not yet available
Coal plant off-site releases (1,000 pounds) - - - - Not yet available

Social +

Customers & Communities +

2016 2017 2018 2019 2020
Total Giving $ 10,000,000 $ 9,800,000 $ 10,800,000 $ 9,800,000 $11,100,000
Volunteer Hours 120,000 110,000 121,000 90,000 82,000

Safety & Workforce +

2016 2017 2018 2019 2020
OSHA Recordable Injuries 32 33 36 41 40
Employee Engagement Score 81% NA NA 83% 84.5%

Operations & Governance +

Environmental Violations +

2016 2017 2018 2019 2020
Reportable Environmental Incidents 6 8 3 3 2
Environmental Notices of Violation 1 3 0 1 1

Grid Reliability +

2016 2017 2018 2019 2020
SAIFI 0.86 0.75 0.84 0.84 0.85

Energy +

2016 2017 2018 2019 2020
Total Energy Sources (MWh) 33,433,000 32,762,000 32,646,000 33,402,000 33,668,000
Total Renewable Energy (MWh) 2,873,099 2,905,708 2,992,274 2,946,449 2,982,329
Annual Energy Efficiency Savings (MWh) 572,189 628,539 392,022 516,383 585,637
See our statistical report for more energy data

Financial Performance +

2016 2017 2018 2019 2020
Total Shareholder Returns 25.3% 12.7% 3.6% 9.0% 25.3%
PNW Earnings Per Share $3.95 $4.35 $4.54 $4.77 $3.95

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, which provides ESG information in a measurable and consistent format for investors.

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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