Mormon Flat
29600 E. Apache Trail, Apache Junction, AZ 85119Plant Summary Information
Mormon Flat is ranked #7 out of 8 hydroelectric power plants in Arizona in terms of total annual net electricity generation.
Mormon Flat is comprised of 2 generators and generated -1.4 GWh during the 3-month period between December 2025 to March 2026.
| Plant Name | Mormon Flat |
|---|---|
| Utility Name | Salt River Project |
| Location | Maricopa County, AZ |
| Initial Operation Date | May 1926 |
| Last Update | Mar 2026 |
| Annual Generation | 39.3 GWh |
| Annual Consumption | 43.8 k MMBtu |
| Ranked #4,429 out of 12,332 Power Plants Nationwide | |
| Ranked #538 out of 1,256 Water Power Plants Nationwide | |
| Ranked #100 out of 166 Arizona Power Plants | |
| Ranked #7 out of 8 Arizona Water Power Plants | |
| Fuel Types | Water |
Map of Mormon Flat
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Monthly Net Generation for Mormon Flat
Monthly Plant Fuel Consumption for Mormon Flat
Mormon Flat Details
| Summary Information | |
|---|---|
| Plant Name | Mormon Flat (148) |
| Plant Address | 29600 E. Apache Trail, Apache Junction, AZ 85119 |
| Utility | Salt River Project (16572) |
| Latitude, Longitude | 33.5536, -111.4431 |
| Generation Dates on File | Jan 2001 to Mar 2026 |
| Initial Operation Date | May 1926 |
| Annual Generation | 39.3 GWh |
| Fuel Types | Water |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Regulated |
| NERC Region | WECC |
| Balancing Authority | Salt River Project (SRP) |
| NAICS Code | Utilities (22) |
| Sector | Electric Utility (1) |
| Water Source | Salt River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Salt River Project (16572) AZ |
| Grid Voltage | 115.00 kV |
| Energy Storage | Yes |
Generator MF1 Details Operating May 1926
| Technology | Conventional Hydroelectric |
|---|---|
| Prime Mover | Hydroelectric Turbine |
| Ownership | Single Owner |
| Nameplate Capacity | 9.2 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 11.5 MW |
| Winter Capacity | 11.5 MW |
| Minimum Load | 8 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | May 1926 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
| Multiple Fuels | No |
Generator MF2 Details Operating June 1971
| Technology | Hydroelectric Pumped Storage |
|---|---|
| Prime Mover | Pumped Storage |
| Ownership | Single Owner |
| Nameplate Capacity | 54.3 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 57.3 MW |
| Winter Capacity | 57.3 MW |
| Minimum Load | 10 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | June 1971 |
| Combined Heat & Power | No |
| Sector Name | Electric Utility (1) |
| Energy Source | Water |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
| Multiple Fuels | No |
Mormon Flat Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Water.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #528 | Oneida | Riverdale, ID | 42.0 GWh |
| #529 | New York State Dam Hydro | Waterford, NY | 42.0 GWh |
| #530 | City Power Plant | Idaho Falls, ID | 40.4 GWh |
| #531 | Beaver Falls | Ketchikan, AK | 40.3 GWh |
| #532 | Hiram | Hiram, ME | 40.2 GWh |
| #533 | Ayers Island | Bristol, NH | 40.1 GWh |
| #534 | Bishop Creek 4 | Bishop, CA | 40.1 GWh |
| #535 | Bridgewater | Morganton, NC | 39.9 GWh |
| #536 | Hodenpyl | Mesick, MI | 39.6 GWh |
| #537 | Foothill | Sylmar, CA | 39.6 GWh |
| #539 | Lower No 1 | Idaho Falls, ID | 38.9 GWh |
| #540 | Rollins | Colfax, CA | 38.6 GWh |
| #541 | Riverside Holyoke | Holyoke, MA | 38.4 GWh |
| #542 | Soft Maple | Croghan, NY | 38.4 GWh |
| #543 | Cooper Lake | Cooper Landing, AK | 38.1 GWh |
| #544 | Moshier | Lowville, NY | 38.1 GWh |
| #545 | Green Springs | Columbia Falls, OR | 37.7 GWh |
| #546 | Cascade Dam (ID) | Cascade, ID | 37.4 GWh |
| #547 | Green Island Hydroelectric Station | Green Island, NY | 37.4 GWh |
| #548 | Tims Ford | Winchester, TN | 37.3 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Mormon Flat.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Arizona State University CHP | Tempe, AZ | 39.9 GWh | 29.5 mi |
| AZ State University - Tempe Campus Solar | Tempe, AZ | 1.1 GWh | 29.3 mi |
| Banner Solar Ironwood | Queen Creek, AZ | 3.8 GWh | 24.6 mi |
| Bonnybrooke PV | Florence, AZ | 121.2 GWh | 35.1 mi |
| Box Canyon (AZ) | Florence, AZ | 691.4 GWh | 27.5 mi |
| Copper Crossing Energy and Research Cent | Florence, AZ | 5.1 GWh | 27.6 mi |
| Gilbert Solar Facility I, LLC | Gilbert, AZ | 3.8 GWh | 24.8 mi |
| Horse Mesa | Apache Junction, AZ | 74.2 GWh | 6.3 mi |
| Intel - Ocotillo Campus Solar | Chandler, AZ | 2.3 GWh | 33.6 mi |
| Jewish Community Center PV | Scottsdale, AZ | 1.8 GWh | 27.9 mi |
| Kyrene | Tempe, AZ | 1.1 TWh | 31.5 mi |
| Ocotillo | Tempe, AZ | 434.7 GWh | 28.5 mi |
| Paradise Valley H.S. PV | Phoenix, AZ | 2.1 GWh | 32.6 mi |
| Phoenix Airport East Economy Lot | Phoenix, AZ | 1.3 GWh | 32.2 mi |
| Phoenix Airport Rental Car Center | Phoenix, AZ | 4.4 GWh | 35.7 mi |
| Poseidon Solar, LLC | Globe, AZ | 50.2 GWh | 27.3 mi |
| Queen Creek Solar Farm | Queen Creek, AZ | 40.7 GWh | 22 mi |
| Roosevelt | Roosevelt, AZ | 101.8 GWh | 18.1 mi |
| Santan | Gilbert, AZ | 4.9 TWh | 23.4 mi |
| Stewart Mountain | Phoenix, AZ | 45.7 GWh | 5.4 mi |