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Arizona

1990 1991 12.0% 10.2%

1992 9.6%

PERCENT GENERATION OF RENEWABLE ENERGY 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 9.9% 10.4% 12.0% 13.0% 15.4% 13.4% 11.6% 9.4% 8.5% 7.9%

2003 7.5%

2004 6.7%

2005 6.4%

2006 6.6%

2007 5.9%

2008 6.2%

Coal Petroleum Natural Gas Nuclear Hydroelectric Other Renewables Pumped Storage Other Total Electric Industry

NET GENERATION OF ELECTRIC POWER BY PRIMARY ENERGY SOURCE (THOUSAND MEGAWATT-HOURS) 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 40,993 40,061 38,227 38,091 39,811 40,144 40,443 41,275 43,840 39,707 43,644 43,702 40,116 190 314 57 49 41 43 73 49 52 63 66 53 42 8,735 12,872 17,293 18,933 28,265 28,893 32,869 38,469 38,822 34,739 29,676 23,253 30,295 30,381 28,724 30,862 28,581 28,113 25,807 24,012 26,782 29,250 30,662 31,200 31,278 31,934 8,354 7,624 7,427 7,075 6,973 6,410 6,793 6,598 7,286 6,427 6,622 9,174 6,717 5 39 54 45 48 74 54 42 114 202 319 529 1,698 289 276 124 284 -53 107 149 125 95 169 209 121 79 NA NA 88 1,339 1,368 NA NA NA NA 2 15 15 24 88,947 89,911 94,132 94,396 104,564 101,479 104,393 113,341 119,459 111,971 111,751 108,125 110,905

Hydroelectric Solar Wood/Wood Waste MSW Biogenic/Landfill Gas Other Biomass Total

NET GENERATION OF RENEWABLE ELECTRIC POWER (000 MWh) 2002 2003 2004 2005 2006 2007 2008 7427 7075 6973 6410 6793 6598 7329 * * 4 14 13 9 14 NA NA NA 12 8 NA 77 50 41 44 45 28 29 14 4 4 * 4 4 4 4 7481 7120 7021 6484 6846 6639 7438

chart-main-title chart-axis-header Other Petroleum Pumped Storage Other Renewables Hydroelectric Natural Gas Nuclear Coal

Net Generation of Electric Power in Arizona (Thousand Megawatthours) 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 NA NA NA NA NA NA NA NA NA NA NA NA 88 1,339 1,368 NA NA NA NA 152 117 102 85 152 83 70 66 63 50 190 314 57 49 41 43 73 49 52 250 363 290 326 304 190 265 352 269 324 289 276 124 284 -53 107 149 125 95 108 107 138 103 115 91 77 81 NA 5 5 39 54 45 48 74 54 42 114 7,418 6,736 6,621 6,697 7,365 8,288 9,214 12,049 10,970 9,759 8,354 7,624 7,427 7,075 6,973 6,410 6,793 6,598 7,286 2,334 2,226 2,975 1,937 2,484 2,193 2,156 2,484 3,928 5,034 8,735 12,872 17,293 18,933 28,265 28,893 32,869 38,469 38,822 20,598 25,096 25,609 22,049 23,171 26,985 28,840 29,314 30,301 30,416 30,381 28,724 30,862 28,581 28,113 25,807 24,012 26,782 29,250 31,916 32,558 34,817 37,272 38,343 31,952 31,033 34,479 36,563 38,305 40,993 40,061 38,227 38,091 39,811 40,144 40,443 41,275 43,840

2009 2 63 169 202 6,427 34,739 30,662 39,707

2010 15 66 209 319 6,622 29,676 31,200 43,644

2011 15 53 121 529 9,174 23,253 31,278 43,702

2012 24 42 79 1,698 6,717 30,295 31,934 40,116

chart-main-title chart-axis-header Arizona

Percent of Electric Power Generation by Renewable Sources 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 12.0% 10.2% 9.6% 9.9% 10.4% 12.0% 13.0% 15.4% 13.4% 11.6%

2000 9.4%

2001 8.5%

2002 7.9%

2003 7.5%

2004 6.7%

2005 6.4%

2006 6.6%

2007 2008 5.9% 6.2%

Renewable Energy Production, 2008 - Main Sources | Main Sources chart-main-title chart-axis-header 2008 Hydro Conventional 98.53% All Other Sources 1.47% y Production,chart-title 2008 - All Other Sources | All Other Sources Solar 0.19% Wood/Wood Waste 1.03% MSW Biogenic/Landfill Gas 0.19% Other Biomass 0.06%

chart-main-title chart-axis-header Hydro Conventional* Solar Wood/Wood Waste MSW Biogenic/Landfill Gas Other Biomass

Net Generation of Renewable Electric Power (Thousand Megawatthours) 2002 2003 2004 2005 2006 2007 2008 7427 7075 6973 6410 6793 6598 7329 * * 4 14 13 9 14 NA NA NA 12 8 NA 77 50 41 44 45 28 29 14 4 4 * 4 4 4 4

LastUpdate SourceLine SourceURL Dataset Description

01/06/14 Energy Information Administration, U.S. Department of Energy http://www.eia.gov/cneaf/electricity/epa/epa_sprdshts.html Not all electricity that is generated in Arizona is used by Arizonans; much of it is exported to other states, particularly to markets in Southern California. Over one third of the energy generated in Arizona continues to be from coal (36.2% in 2012). Coal burning power plants are a source of air pollution and greenhouse gas emissions. After rising at sharp rate for about ten years, and peaking in 2007 at 33.9%, the percent of energy produced from natural gas in Arizona has decreased since then, although in 2012 its production rebounded a bit. Natural gas-fired power stations burn cleaner and produce lower greenhouse gas emissions than coal-fired generators; however, natural gas is also a non-renewable energy source. Palo Verde Nuclear Power plant is the highest capacity nuclear plant in the United States and production has stayed steady, with 28.8% of the energy produced in Arizona in 2012 being from nuclear power. Renewable energy production is becoming more important in Arizona, but production has actually decreased since peaking at 15.4% of total energy generated in 1997. In 2011, renewable power production rose from the previous year to 9.0%, before dropping again in 2012 to 7.6%. Of note, however, is that over 20% of 2012 renewable energy production in Arizona came from renewable sources other than hydroelectric power. This was almost a four-fold increase from the previous year and is due to continued increases in energy generated by wind and solar power, as well as a decrease in hydroelectric production.

Technical Notes

Notes on Visual #1

Data were collected from the U.S. Energy Information Administration: http://www.eia.gov/cneaf/electricity/epa/epa_sprdshts.html, Net Generation by State by Type of Producer by Energy Source (EIA-906, EIA-920, and EIA-923). Net generation of electric power in Arizona is staying stable. After a sharp decline in the percentage of the total energy generated from coal, it has stabilized at slightly over one third of the energy produced in Arizona. Electric energy produced by nuclear power had also been declining, but has stabilized over the past few years at just under 30 percent. In contrast, the production of electric energy generated from natural gas had been on a steady increase, but after peaking at almost 34% in 2007, it declined slightly and has fluctuated between twenty and thirty percent of the energy produced. This leaves just a small percentage of the energy generated in Arizona from renewable sources, but non-hydroelectric renewable power continues to increase, especially wind and solar power, as long term drought takes its toll on hydroelectric production.

[1] Guidelines for Reusing Data: Arizona Indicators uses Google Spreadsheets to store raw data in a consistently structured manner that makes it easy to use in a variety of applications. For the greatest user control we recommend that you save the entire workbook in Excel format before importing them into other applications. After a file or worksheet is saved locally --in any format-- you will notice three rows and one column that were hidden from view in Google Spreadsheets. These header rows and key field column provide options for user customization. Header rows of varying lengths are valuable as descriptive text for most database; geographic information system (GIS); and charting & graphing software. The key field --held in the first column-- is useful in most database & GIS software (the Federal Information Processing Standard code for locations is used where applicable). If you do not wish to use the header rows or key column simply remove them before importing into an application or presentation.