Facts about SRP

As a community-based not-for-profit water and energy company, SRP acts in the best interest of the people it serves and strives to help build a better future for Arizona.

Today, SRP is one of the nation's largest public power utilities. We provide electricity to approximately 1 million retail customers in a 2,900-square-mile service area that spans three Arizona counties, including most of the Phoenix metropolitan area. We are an integrated utility, providing generation, transmission and distribution services, as well as metering and billing services.

SRP's water business is one of the largest raw-water suppliers in Arizona. We deliver about 800,000 acre-feet of water annually to a 375-square-mile service area and manage a 13,000-square-mile watershed that includes an extensive system of reservoirs, wells, canals and irrigation laterals.

Basic data FY18

Employees, year-end (regular) 5,089
Electric customers, year-end 1,041,342
Electric service area 2,900 sq. mi.
Water service area 375 sq. mi
Watershed 13,000 sq. mi.

Power data FY18

Peak - SRP retail customers (MW) 7,219
Peak - power system (MW) 7,610
Resources available to serve peak (MW) 8,801
Sales, total (GWh) 35,256
Sales, retail (GWh) 28,341

Financial data FY18

Data ($ in 000s)
Total operating revenues $3,196,486
Operating expenses, total $3,079,972
Net revenues for the year $19,303
Utility plant, gross $16,438,352
Electric revenue contributions to support water operations $47,153
Taxes & tax equivalents $176,153
Debt ratio 48.2
Debt service coverage ratio 4.07

Note: SRP operates on a fiscal year of May 1 through April 30.


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SRP's ownership interest in major power sources:

Facility SRP ownership interest Fuel
Agua Fria Generating Station (Ariz.) 100% of 614 MW oil/natural gas
Coronado Generating Station (Ariz.) 100% of 785 MW, units 1 & 2
100% of 500-kV transmission system
Craig Generating Station (Colo.) 29% (250 MW) of 863 MW, units 1 & 2 coal
Desert Basin Generating Station (Ariz.) 100% of 581 MW natural gas
Four Corners Generating Station (N.M.) 10% (154 MW) of 1,540 MW, units 4 & 5 coal
Gila River Generation Station (Ariz.) 100% of 1,680 MW, blocks 1, 2 & 4 natural gas
Hayden Generating Station (Colo.) 50% (130 MW) of 261 MW, unit 2 coal
Kyrene Generating Station (Ariz.) 100% of 410 MW natural gas
Mesquite Generating Station (Ariz.) 100% of 625 MW, block 1 natural gas
Navajo Generating Station (Ariz.) 42.9% (969 MW) of 2,250 MW, units 1, 2 & 3 coal
Palo Verde Nuclear Generating Station (Ariz.) 17.49% (688 MW) of 3,934 MW, units 1, 2 & 3 nuclear
Santan Generating Station (Ariz.) 100% of 1,219 MW natural gas
Springerville Generating Station (Ariz.) 100% of 417 MW, unit 4 coal

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Water data

Data (acre-feet)
Water deliveries 773,527
Storage capacity 2,306,690
Water in storage, fiscal year-end 1,405,527
Runoff 1,136,862

Note: Water data is by calendar year ending Dec. 31, 2017, unless noted.

SRP dams and lakes

Dam Lake
Bartlett Dam Bartlett Lake
C.C. Cragin Dam C.C. Cragin Reservoir
Granite Reef Diversion Dam --
Horse Mesa Dam Apache Lake
Horseshoe Dam Horseshoe Lake
Mormon Flat Dam Canyon Lake
Stewart Mountain Dam Saguaro Lake
Theodore Roosevelt Dam Roosevelt Lake

SRP sustainable portfolio FY18

Energy Efficiency Megawatt-hours
Commercial demand side management 1,411,370
Residential demand side management 1,204,759
M-Power 281,137
SRP facility savings 2,469
Total Energy Efficiency 2,899,735
Renewable energy
Biomass 80,017
Hydropower* 676,915
Geothermal 300,665
Solar 467,324
Wind 230,393
Renewable energy credits 68,148
Total renewable energy 1,823,463
Banked credits 331,877
Total sustainable portfolio - MWh 5,055,075
Total sustainable portfolio – % of retail requirements 17.25%

*Number corrected as of Nov. 1, 2018.

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