City of Tacoma, Department of Public Utilities, Light Division
Balancing Authority Summary Information
City of Tacoma, Department of Public Utilities, Light Division is ranked #57 out of 65 balancing authorities in terms of total annual electricity generation.
| Balancing Authority | City of Tacoma, Department of Public Utilities, Light Division |
|---|---|
| States | Washington |
| Last Update | Nov 2025 |
| Annual Generation | 2.1 TWh |
| Power Plants | 9 |
| Utilities | 2 |
| Ranked #57 out of 65 in terms of net annual generation | |
| Ranked #24 out of 47 in terms of annual generation from water | |
| Power Plant Types | Water | 99.8% |
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Daily Net Generation for City of Tacoma, Department of Public Utilities, Light Division for the past 3 Years
| Plant Name | Utility | Location | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|
| Mayfield | City of Tacoma - (WA) | Silver Creek, WA | 576 GWh | Feb 1963 | Dec 2024 | Water |
| Mossyrock | City of Tacoma - (WA) | Silver Creek, WA | 783 GWh | Sep 1968 | Sep 2025 | Water |
| Cushman 1 | City of Tacoma - (WA) | Shelton, WA | 120 GWh | May 1926 | Dec 2024 | Water |
| Cushman 2 | City of Tacoma - (WA) | Shelton, WA | 179 GWh | Nov 1930 | Dec 2024 | Water |
| Wynoochee | City of Tacoma - (WA) | Montesano, WA | 31 GWh | Dec 1993 | Dec 2024 | Water |
| Alder | City of Tacoma - (WA) | La Grande, WA | 183 GWh | Nov 1945 | Dec 2024 | Water |
| LaGrande | City of Tacoma - (WA) | La Grande, WA | 297 GWh | Oct 1912 | Dec 2024 | Water |
Surrounding Balancing Authorities
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #43 | Avangrid Renewables, LLC | 8.3 TWh | 19 |
| #42 | Avista Corporation | 8.3 TWh | 33 |
| #16 | Bonneville Power Administration | 80.5 TWh | 163 |
| #33 | Gridforce Energy Management, LLC | 18.3 TWh | 1 |
| #50 | PacifiCorp West | 5.0 TWh | 136 |
| #44 | Portland General Electric Company | 8.2 TWh | 108 |
| #45 | Public Utility District No. 1 of Chelan County | 7.7 TWh | 4 |
| #41 | Public Utility District No. 2 of Grant County, Washington | 8.5 TWh | 5 |
| #48 | Puget Sound Energy, Inc. | 6.2 TWh | 40 |
| #51 | Seattle City Light | 4.5 TWh | 9 |
Balancing Authorities with Similar Net Generation
| Rank | Balancing Authority | Annual Net Generation | # Power Plants |
|---|---|---|---|
| #52 | Duke Energy Progress West | 4.3 TWh | 10 |
| #53 | PUD No. 1 of Douglas County | 3.7 TWh | 3 |
| #54 | Arlington Valley, LLC | 3.4 TWh | 1 |
| #55 | City of Tallahassee | 3.1 TWh | 5 |
| #56 | Turlock Irrigation District | 2.1 TWh | 11 |
| #57 | City of Tacoma, Department of Public Utilities, Light Division | 2.1 TWh | 9 |
| #58 | Gainesville Regional Utilities | 1.8 TWh | 8 |
| #59 | Southeastern Power Administration | 1.5 TWh | 11 |
| #60 | New Harquahala Generating Company, LLC | 764.0 GWh | 1 |
| #61 | Alcoa Power Generating, Inc. - Yadkin Division | 696.7 GWh | 4 |