Balancing authorityRegional context

Puget Sound Energy

About this record

Puget Sound Energy

2024 inventory / 2024 calendar year

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Plants

38count

Source & method

Published plants in scope

2024 inventory · reported · derived · valid · final

core_eia__codes_balancing_authorities.parquet; code=PSEI

Publisher & attribution ↗ Cite this released fact ↗

Nameplate capacity, operating generatorsFull nameplate rating of the operating generators, before ownership shares. MW measures rated power; annual output is energy in MWh.Definition ↗

2,960.3MW

Source & method

Sum of operating nameplate MW over published plants whose reported balancing authority code is this BA; a reporting relationship, not a footprint

2024 inventory · reported · derived · valid · final

38 of 38 plants included.

Reported operating capacity; missing components stay missing

core_eia__codes_balancing_authorities.parquet; code=PSEI

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Net generationEnergy produced over the stated period after the plant’s own use, including signed storage output. Plant output is not allocated to owners or buyers.Definition ↗

13,160,566MWh

2024

Source & method

Sum of plant annual net generation over published plants reporting this BA; plants without an EIA-923 row are not counted

2024 calendar year · reported · derived · valid · final

32 of 32 plants with operating capacity included.

core_eia__codes_balancing_authorities.parquet; code=PSEI

Publisher & attribution ↗ Cite this released fact ↗

Latest EIA-930 hourly report

Reading the latest published values…

Hourly operations, summarized by month

EIA-930 · MWa

EIA-930Hourly electricity demand, generation and interchange. Reported values are the authority’s filings. EIA-adjusted values account for non-physical commercial transfers; EIA-imputed values replace missing or anomalous reports with estimates. Every demand report EIA replaced is left out of every sum and mean here; a replaced generation or interchange report is left out when it is whose magnitude is at least 1.5 times the largest unreplaced magnitude of that authority and year, since zeros and imports are real there. The estimate is never used in its place.Definition ↗ reports for this authority, 2023-10 to 2026-09 (UTC months). Mean MW over the hours reported; a dot marks a month with under 90% of hours.

Reported demand; every hour EIA marked is left out and counted, and EIA's adjusted and imputed series are in the download table, never substituted here.

Monthly mean demand, net generation and total interchange (positive = export) as this authority reported them; months with no report are gaps, not zero.

Monthly values as a table · MWa

Monthly mean demand, net generation and total interchange (positive = export) as this authority reported them; months with no report are gaps, not zero.
Month (UTC)	Demand	Hours reported	Net generation	Hours reported	Total interchange	Hours reported
2023-10	2,648 MWa	744 h(100%)	822 MWa	744 h(100%)	-1,826 MWa	744 h(100%)
2023-11	3,153 MWa	720 h(100%)	1,091 MWa	720 h(100%)	-2,062 MWa	720 h(100%)
2023-12	3,233 MWa	744 h(100%)	1,124 MWa	744 h(100%)	-2,109 MWa	744 h(100%)
2024-01	3,524 MWa	744 h(100%)	1,183 MWa	744 h(100%)	-2,340 MWa	744 h(100%)
2024-02	3,205 MWa	696 h(100%)	1,191 MWa	696 h(100%)	-2,014 MWa	696 h(100%)
2024-03	3,015 MWa	744 h(100%)	935 MWa	744 h(100%)	-2,081 MWa	744 h(100%)
2024-04	2,695 MWa	720 h(100%)	788 MWa	720 h(100%)	-1,907 MWa	720 h(100%)
2024-05	2,518 MWa	744 h(100%)	573 MWa	744 h(100%)	-1,945 MWa	744 h(100%)
2024-06	2,406 MWa	720 h(100%)	600 MWa	720 h(100%)	-1,806 MWa	720 h(100%)
2024-07	2,677 MWa	744 h(100%)	824 MWa	744 h(100%)	-1,853 MWa	744 h(100%)
2024-08	2,552 MWa	744 h(100%)	740 MWa	744 h(100%)	-1,812 MWa	744 h(100%)
2024-09	2,457 MWa	720 h(100%)	670 MWa	720 h(100%)	-1,787 MWa	720 h(100%)
2024-10	2,624 MWa	744 h(100%)	778 MWa	744 h(100%)	-1,846 MWa	744 h(100%)
2024-11	3,008 MWa	720 h(100%)	966 MWa	720 h(100%)	-2,042 MWa	720 h(100%)
2024-12	3,313 MWa	744 h(100%)	1,166 MWa	744 h(100%)	-2,147 MWa	744 h(100%)
2025-01	3,563 MWa	744 h(100%)	713 MWa	744 h(100%)	-2,849 MWa	744 h(100%)
2025-02	3,526 MWa	672 h(100%)	786 MWa	672 h(100%)	-2,740 MWa	672 h(100%)
2025-03	2,985 MWa	744 h(100%)	751 MWa	744 h(100%)	-2,235 MWa	744 h(100%)
2025-04	2,595 MWa	720 h(100%)	531 MWa	720 h(100%)	-2,064 MWa	720 h(100%)
2025-05	2,408 MWa	744 h(100%)	630 MWa	744 h(100%)	-1,777 MWa	744 h(100%)
2025-06	2,453 MWa	720 h(100%)	760 MWa	720 h(100%)	-1,693 MWa	720 h(100%)
2025-07	2,628 MWa	744 h(100%)	814 MWa	744 h(100%)	-1,813 MWa	744 h(100%)
2025-08	2,633 MWa	744 h(100%)	698 MWa	744 h(100%)	-1,935 MWa	744 h(100%)
2025-09	2,470 MWa	720 h(100%)	695 MWa	720 h(100%)	-1,775 MWa	720 h(100%)
2025-10	2,666 MWa	744 h(100%)	453 MWa	744 h(100%)	-2,213 MWa	744 h(100%)
2025-11	2,932 MWa	720 h(100%)	506 MWa	720 h(100%)	-2,426 MWa	720 h(100%)
2025-12	3,238 MWa	744 h(100%)	552 MWa	744 h(100%)	-2,686 MWa	744 h(100%)
2026-01	3,387 MWa	744 h(100%)	422 MWa	744 h(100%)	-2,964 MWa	744 h(100%)
2026-02	3,232 MWa	672 h(100%)	407 MWa	672 h(100%)	-2,826 MWa	672 h(100%)
2026-03	3,077 MWa	744 h(100%)	507 MWa	744 h(100%)	-2,569 MWa	744 h(100%)
2026-04	2,635 MWa	720 h(100%)	386 MWa	720 h(100%)	-2,249 MWa	720 h(100%)
2026-05	2,427 MWa	744 h(100%)	373 MWa	744 h(100%)	-2,054 MWa	744 h(100%)
2026-06	2,526 MWa	720 h(100%)	424 MWa	720 h(100%)	-2,101 MWa	720 h(100%)
2026-07	2,569 MWa	744 h(100%)	543 MWa	744 h(100%)	-2,026 MWa	744 h(100%)
2026-08	2,585 MWa	744 h(100%)	609 MWa	744 h(100%)	-1,977 MWa	744 h(100%)
2026-09	2,457 MWa	103 h(14%)	406 MWa	103 h(14%)	-2,051 MWa	103 h(14%)

Interchange by neighbour, latest month · MWa

BPATvalue = this authority's report of the boundary (positive = export); counterpart_value = the neighbour's own report of the same boundary with the sign flipped; discrepancy = |own + neighbour| / max(|own|, |neighbour|, 100 MWa). Both reports are kept; neither is corrected
-2,078 MWa· 2026-09
CHPDvalue = this authority's report of the boundary (positive = export); counterpart_value = the neighbour's own report of the same boundary with the sign flipped; discrepancy = |own + neighbour| / max(|own|, |neighbour|, 100 MWa). Both reports are kept; neither is corrected
-23 MWa· 2026-09
GCPDvalue = this authority's report of the boundary (positive = export); counterpart_value = the neighbour's own report of the same boundary with the sign flipped; discrepancy = |own + neighbour| / max(|own|, |neighbour|, 100 MWa). Both reports are kept; neither is corrected
84 MWa· 2026-09
SCLvalue = this authority's report of the boundary (positive = export); counterpart_value = the neighbour's own report of the same boundary with the sign flipped; discrepancy = |own + neighbour| / max(|own|, |neighbour|, 100 MWa). Both reports are kept; neither is corrected
1 MWa· 2026-09
TPWRvalue = this authority's report of the boundary (positive = export); counterpart_value = the neighbour's own report of the same boundary with the sign flipped; discrepancy = |own + neighbour| / max(|own|, |neighbour|, 100 MWa). Both reports are kept; neither is corrected
-44 MWa· 2026-09

EIA-930 hourly reports summarized by UTC month; means cover the kept reported hours and carry their coverage, leaving out the flagged hours EIA marked (hours_flagged); the 2024Q3 fuel taxonomy change appears as new source codes

Plants reporting to this balancing authorityThe organization that balances electricity supply and demand in a reporting area.Definition ↗

Operating MW

A reporting assignment, not a retail supply relationship.

Clearwater Wind I 365.5MW
Mint Farm Generating Station 319MW
Goldendale Generating Station 302.8MW
Ferndale Generating Station 285.5MW
Wild Horse 273.1MW
Frederickson 177.8MW
Encogen 176.4MW
Whitehorn 169.2MW
March Point Cogeneration 139.8MW
Skookumchuck Wind Facility 136MW
Sumas Power Plant 125.5MW
Upper Baker 104.8MW
Lower Baker 103.9MW
Vantage Wind Energy LLC 90MW
Snoqualmie 2 38.7MW
Sierra Pacific Burlington Facility 28MW
Twin Falls Hydro 24MW
Electron 22.8MW
Snoqualmie 12.8MW
Koma Kulshan Associates 12MW
Calligan Creek Hydroelectric Project 6MW
Hancock Creek Hydroelectric Project 6MW
Cedar Hills 5.4MW
Urtica Solar Project 5MW
Penstemon Solar Project 5MW
Camas Solar Project 5MW
LRI Landfill Gas-to-Energy Facility 4.5MW
Weeks Falls 4.3MW
Swauk Wind LLC 4.3MW
Black Creek 3.7MW
Glacier Battery Storage 2MW
Nooksack Hydro 1.5MW
Fredonia 0MW
Crystal Mountain 0MW
Centralia Battery Energy Storage System 0MW
Sinclair BESS 0MW
Greenwater BESS 0MW
AGATE BESS 0MW

Sources for this record

Frozen citation page ↗

Display names and aliases (pipeline/config/crosswalks/aliases.csv)

Display names verified against each organization's own website; EIA legal names retained as aliases

A display name is the name an organization uses for itself; the EIA name stays searchable and on the record. Each row cites the page that shows the name.

Original source ↗Method & license

PUDL v2026.9.0, out_eia__yearly_plants

Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923

Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)

Original source ↗Method & license

PUDL v2026.9.0, out_eia__yearly_generators

Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923

Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)

Original source ↗Method & license

PUDL v2026.9.0, out_eia923__yearly_generation_fuel_combined

Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923

Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)

Original source ↗Method & license

PUDL v2026.9.0, core_eia__codes_balancing_authorities

Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923

Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)

Original source ↗Method & license

Release 20260929T050546Z-51ae0f7d3c78 · Record JSON