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Current interconnection queue

  = Denotes Inactive Requests
Queue Position Request Date Request Status Service Type (NR or ER) Location Max Summer output Max Winter output Interconnection Facility Projected In-Service Date Facility type (combined cycle, coal, CT, fuel type)
153 4/17/2024 Transitional Cluster Study NRIS Skagit County, WA 188 MW 188 MW Fredonia 230 kV Substation 12/31/2028 Gas Turbine
152 4/17/2024 Transitional Cluster Study NRIS Whatcom County, WA 188 MW 188 MW Arco Central 115kV Substation 12/31/2028 Gas Turbine
151 4/17/2024 Withdrawn NRIS Pierce County, WA 100 MW 100 MW Frederickson/Alderton 115 kV Substation 12/31/2027 BESS
150 4/17/2024 Transitional Cluster Study NRIS Skagit County, WA 100 MW 100 MW Fredonia 230 kV Substation 12/31/2027 BESS
149 4/17/2024 Transitional Cluster Study NRIS Whatcom County, WA 200 MW 200 MW Arco Central 115kV Substation 12/31/2027 BESS
148 4/17/2024 Transitional Cluster Study NRIS King County, WA 100 MW 100 MW Sedro-Woolley 230 kV Substation 10/31/2028 BESS
147 4/12/2024 Withdrawn NRIS Skagit County, WA 200 MW 200 MW Sedro Woolley 230 kV Substation 5/31/2027 BESS
146 4/12/2024 Transitional Cluster Study NRIS Skagit County, WA 100 MW 100 MW Fredonia Substation
(48.45460892, -122.4369965) 		5/31/2027 BESS
145 4/12/2024 Transitional Cluster Study NRIS Whatcom County, WA 100 MW 100 MW Custer Substation
(48.90451433, -122.6251608) 		5/31/2027 BESS
144 4/12/2024 Withdrawn NRIS Skagit County, WA 100 MW 100 MW March Point Substation
(48.45714188, -122.5630035) 		5/31/2027 BESS
143 4/12/2024 Withdrawn NRIS King County, WA 200 MW 200 MW White River – Baldi 230kV Transmission Line 5/31/2027 BESS
142 3/19/2024 Withdrawn NRIS Skagit County, WA 150 MW 150 MW Sedro Woolley 230 kV Substation 12/31/2029 Wind + BESS
141 2/16/2024 Transitional Cluster Study ERIS/NRIS Thurston County, WA 300 MW 300 MW Tono 115kV Substation 11/30/2030 Wind +Solar+ Storage
140 12/21/2023 Withdrawn ERIS/NRIS Kittitas County, WA 200 MW 200 MW Windridge 230 kV Substation 6/1/2028 BESS
139 12/15/2023 Transitional Cluster Study ERIS/NRIS King County, WA 130 MW 130 MW Mount Si 115 kV Substation 12/30/2028 BESS
138 5/19/2023 Withdrawn ERIS/NRIS King County, WA 175 MW 175 MW Black Diamond 115kV Substation 6/1/2025 BESS
137 11/10/2022 Withdrawn ERIS/NRIS Columbia County, WA 150 MW 150 MW Primary: Dodge Junction 230 kV Substation Alternate Phalen Gulch 230 kV Substation 4/28/2025 Solar
136 10/24/2022 Withdrawn ERIS/NRIS King County, WA 150 MW 150 MW Lat = 47.321872
Long = -122.0073		 12/31/2025 BESS
135 10/14/2022 Facilities Study ERIS/NRIS Colstrip and Rosebud Counties, MT 800 MW 800 MW Colstrip 500 kV Substation 12/1/2025 Solar & BESS
134 8/31/2022 Withdrawn ERIS/NRIS Thurston County, WA 100 MW 100 MW 47° 1'29.35"N, 122°57'18.26"W 12/31/2025 BESS
133 5/19/2022 Facilities Study NRIS Garfield County, WA 300 MW 300 MW Dodge Junction 230 kV Substation 12/15/2025 Solar
132 5/19/2022 Draft LGIA NRIS Thurston County, WA 127 MW 127 MW Proposed new 115 kV substation on either Tono – Blumaer or Tono – Prine lines 6/15/2025 BESS
131
 2/23/2022 Withdrawn ERIS/NRIS Garfield County, WA 197.7755 MW 197.7755 MW Dodge Junction 230 kV Substation 10/31/2024 Wind
130
 2/3/2022 Withdrawn ERIS/NRIS Garfield County, WA 140 MW 140 MW Dodge Junction 230 kV Substation 9/30/2025 Wind
129
 12/23/2021 LGIA NRIS Kitsap County, WA 200 MW 200 MW Foss Corner 115 kV 12/15/2023 BESS
128 11/19/2021 LGIA ERIS Wheatland and Meagher County, MT 750 MW 750 MW Proposed New 500kV Switchyard between Broadview and Townsemd 10/31/2026 Wind
127 11/4/2021 LGIA NRIS Skagit County, WA 100 MW 100 MW Fredonia 115 kV Substation 12/1/2025 BESS
126 9/10/2021 Withdrawn ERIS/NRIS Garfield County, WA 140 MW 140 MW Dodge Junction 230 kV Substation 5/12/2025 Wind
125 8/31/2021 Withdrawn NRIS Lewis County, WA 170 MW 170 MW Tono 115 kV Substation 4/1/2026 BESS
124 8/27/2021 Suspended LGIA NRIS Pierce County, WA 85 MW 85 MW Frederickson 115 kV Substation 9/25/2025 BESS
123 8/27/2021 Under review NRIS Garfield County, WA 150 MW 150 MW Phalen Gulch 230 kV Substation 12/31/2024 Solar + Storage
122 8/25/2021 Withdrawn NRIS Kitsap County, WA 125 MW 125 MW South Bremerton 115kV Substation 7/1/2024 BESS
121 8/25/2021 Suspended LGIA NRIS King County, WA 125 MW 125 MW Starwood 115 kV 7/1/2024 BESS
120 8/25/2021 Withdrawn ERIS/NRIS Whatcom County, WA 15 MW 15 MW Blaine 115 kV Substation 7/1/2024 BESS
119 8/25/2021 Withdrawn NRIS Columbia County, WA 150 MW 150 MW Dodge Junction 230 kV Substation 3/31/2024 solar
118 8/25/2021 Withdrawn NRIS Thurston County, WA 100 MW 100 MW Rochester 115 kV 9/1/2024 BESS
117 8/25/2021 Withdrawn ERIS/NRIS Kittitas County, WA 150 MW 150 MW Proposed new substation on Cascade-Rocky Reach 230 kV Line 9/20/2025 Solar & Storage
116 8/25/2021 Withdrawn ERIS/NRIS Kittitas County, WA 300 MW 300 MW Proposed new substation on Cascade-Rocky Reach 230 kV Line 9/20/2025 Solar & Storage
115 8/19/2021 Withdrawn NRIS Columbia County, WA 140 MW 140 MW Dodge Junction 230 kV Substation 12/1/2025 BESS
114 7/27/2021 Suspended LGIA NRIS Kitsap County, WA 215 MW 215 MW Proposed new 115 kV substation along - South Bremerton – Bremerton 115 kV 12/1/2024 Simple-cycle
113 7/27/221 Suspended LGIA ERIS Lewis County, WA 218.78 MW 218.78 MW Primary: Proposed new 115 kV substation between Tono, Blumaer, and Rochester substations 10/15/2025 Simple-cycle
112 6/23/2021 LGIA NRIS Thurston County, WA 127 MW 127 MW Proposed new 115 kV substation between Tono, Blumaer, and Rochester substations 6/15/2025 BESS
111 6/23/2021 Withdrawn ERIS/NRIS Kitsap County, WA 20 MW 20 MW Foss Corner 115 kV 12/15/2023 BESS
110 6/18/2021 Draft LGIA NRIS Garfield County, WA 150 MW 150 MW Phalen Gulch 230 kV Substation 12/31/2024 Solar & Storage
109 5/27/2021 LGIA NRIS Kitsap County, WA 200 MW 200 MW South Bremerton 115kV Substation 12/15/2023 BESS
108 4/20/2021 Withdrawn ERIS/NRIS Skagit County, WA 200 MW 200 MW Fredonia 115-kV Substation 6/1/2023 BESS
107 4/20/2021 Withdrawn ERIS/NRIS Pierce County, WA 200 MW 200 MW White River 115-kV Substation 6/1/2023 BESS
106 4/20/2021 Withdrawn ERIS/NRIS Lewis County, WA 200 MW 200 MW Tono 115-kV Substation 6/1/2023 BESS
105 4/20/2021 Withdrawn ERIS Skagit County, WA 200 MW 200 MW Sedro Wooley 230-kV Substation 6/1/2023 BESS
104 4/16/2021 Withdrawn ERIS/NRIS Whatcom County, WA 200 MW 200 MW Portal Way 115-kV Substation 6/1/2023 BESS
103 4/15/2021 LGIA NRIS King County, WA 200 MW 200 MW Sedro Wooley 230 kV Substation 1/6/2024 BESS
102 4/15/2021 Suspended LGIA NRIS Skagit County, WA 150 MW 150 MW St. Clair 230 kV Substation
Tono 115 kV 		1/6/2024 BESS
101 4/15/2021 Suspended LGIA NRIS King County, WA 200 MW 200 MW Berydale 230 kV Substation 1/6/2024 BESS
100 4/15/2021 LGIA NRIS Pierce County, WA 200 MW 200 MW White River 115 kV Substation 1/6/2024 BESS
99 4/15/2021 Suspended LGIA NRIS King County, WA 250 MW 250 MW Talbot Hill 230 kV Substation 6/1/2025 BESS
98 3/19/2021 LGIA NRIS Pierce County, WA 200 MW 200 MW White River 230kV 12/15/2023 Battery/Inverter
97 1/20/2021 LGIA ERIS Rosebud & Treasure Counties, MT 300 MW 300 MW Colstrip Substation 500kV 12/31/2024 Wind
96 1/20/2021 LGIA ERIS Rosebud, Treasue & Bighorn Counties, MT 300 MW 300 MW Colstrip Substation 500kV 12/31/2024 Wind
95 1/20/2021 LGIA ERIS Rosebud, Treasue & Bighorn Counties, MT 300 MW 300 MW Colstrip Substation 500kV 12/31/2024 Solar
94 1/22/2021 LGIA ERIS Meagher County, MT 326.25 MW 326.25 MW Proposed New 500kV Subsation between Broadview and Townsend 12/31/2024 Wind
93
(Merchant)		 12/22/2020 Withdrawn ERIS Skagit County, WA 63 MW 63 MW Shannon Substation 7/1/2022 Hydro
92 12/17/2020 SGIA/ In Service NA King County, WA 6.5 MW 6.5 MW Snoqualmie Switching Station Hydro
91 12/17/2020 SGIA/ In Service NA King County, WA 6.5 MW 6.5 MW Snoqualmie Switching Station Hydro
90
 8/31/2020 Withdrawn ERIS/NRIS Kittitas County, WA 80 MW 80 MW Proposed New Substation 8/15/2023 Solar
89 8/19/2020 Withdrawn ERIS Thurston County, WA 100 MW 100 MW Airport 115-kV Substation 12/31/2023 Storage
88 7/31/2020 LGIA ERIS Wheatland & Meagher Counties, MT 750 MW 750 MW Proposed New Substation 10/31/2026 Wind
87 7/24/2020 LGIA NRIS Skagit County, WA 100 MW 100 MW Fredonia 115-kV Substation 11/30/2023 Storage
86 7/24/2020 LGIA NRIS Whatcom County, WA 100 MW 100 MW Portal Way 115-kV Substation 11/30/2023 Storage
85 7/24/2020 Withdrawn NRIS/ERIS Skagit, County, WA 100 MW 100 MW Setro Wooley 115-kV Substation 11/30/2023 Storage
84 7/24/2020 Withdrawn NRIS/ERIS Kittitas, County, WA 100 MW 100 MW Cascade 115-kV Substation 11/30/2023 Storage
83 7/17/2020 LGIA NRIS/ERIS Yellowstone County, MT 500 MW 500 MW Broadview Subsation 12/31/2023 Storage, Wind, and Solar
82 5/19/2020 Withdrawn ERIS/NRIS Thurston County, WA 100 MW 100 MW Yelm Substation 12/31/2022 Storage
81 4/27/2020 Suspended LGIA ERIS Pierce County, WA 100 MW 100 MW Fredrickson Plant 115kV Substation 4/1/2023 Storage
80 2/12/2020 Withdrawn ERIS/NRIS Pierce County, WA 100 MW 100 MW Frederickson Substation 4/1/2023 Storage
79 10/22/2019 Active. See NorthWestern Energy's Queue ERIS/NRIS Rosebud County, MT 500 Mw 500 Mw Colstrip 500 kV Substation 9/1/2024 Wind & Storage
78 10/7/2019 Withdrawn ERIS/NRIS Klickitat County, WA 250 MW 250 MW Goldendale Generating Facility 11/30/2022 Solar
77 10/7/2019 Withdrawn ERIS/NRIS Grant County, WA 300 MW 300 MW (Wanapum 230 kV Substation) 11/30/2022 Solar
76 9/9/2019 Suspended LGIA ERIS King County, WA 100 MW 100 MW Christopher 115 kV Substation 8/13/2025 Storage
75 9/9/2019 Withdrawn ERIS Douglas County, WA 250 MW 250 MW Proposed New Substation 10/31/2022 Solar
74
Affiliate: sPower		 7/18/2019 Withdrawn ERIS Douglas County, WA 160 MW 160 MW White River-Rocky Reach 230 kV Line 9/1/2023 Solar & Storage
73 6/19/2019 LGIA ERIS Rosebud & Carter County, MT 400 MW 400 MW Colstrip 500 kV Substation 12/1/2022 Wind
72 6/17/2019 LGIA ERIS Rosebud & Carter County, MT 600 MW 600 MW Colstrip 500 kV Substation 12/1/2022 Wind
71 3/28/2019 LGIA ERIS Meagher & Wheatland Counties, MT 300.15 MW 300.15 MW Colstrip 500 kV Line 11/1/2027 Wind
70 2/14/2019 LGIA ERIS/NRIS Wheatland County, MT 634.8 MW 634.8 MW Proposed new 500kV substation between Broadview and Townsend 9/1/2027 Wind
69 9/20/2018 Withdrawn ERIS/NRIS Skagit County, WA 46.68 MW 46.68 MW Texaco West Substation 5/24/2019 CT
68 9/20/2018 Withdrawn ERIS/NRIS Skagit County, WA 46.68 MW 46.68 MW Texaco West Substation 7/26/2019 CT
67 9/14/2018 Withdrawn ERIS/NRIS Kittitas County, WA 80 MW 80 MW Cascade - Rocky Reach 230kV Line 12/31/2020 Solar
66 8/27/2018 LGIA ERIS Rosebud, Prairie, Dawson and Custer Counties, MT 750 MW 750 MW Colstrip Substation 500 kV 9/1/2021 Wind
65 8/27/2018 LGIA ERIS Rosebud, Prairie, Dawson and Custer Counties, MT 750 MW 750 MW Colstrip Substation 500 kV 9/1/2021 Wind
64 8/22/2018 Withdrawn NRIS/ERIS Skagit County, WA 46.68 MW 46.68 MW Texaco West Substation 10/1/2018 CT
63 8/16/2018 Withdrawn NRIS/ERIS Thurston County, WA 105.4 MW 105.4 MW Longmire/Yelm/    Blumaer Substation 10/31/2022 Solar
62 8/16/2018 Withdrawn NRIS/ERIS Thurston County, WA 40 MW 40 MW Yelm Substation 12/31/2020 Storage
61 8/15/2018 Withdrawn NRIS/ERIS Kitsap County, WA 200 MW 200 MW South Bremerton 115kV Substation 9/30/2022 Storage
60 8/15/2018 LGIA ERIS Pierce County, WA 200 MW 200 MW Fredrickson Plant 115kV Substation 12/31/2025 Storage
59 8/2/2018 Withdrawn NRIS/ERIS Pierce County, WA 150 MW 150 MW Alderton 230kV Substation 9/1/2022 Storage
58 1/22/2018 Withdrawan NRIS/ERIS    Douglas County, WA 176 MW 176 MW Cascade - Rocky Reach 230kV Line 12/31/2020 Solar
57 1/9/2018 Withdrawn NRIS Kittitas County, WA 35 MW 35 MW Cascade - Rocky Reach 230kV Line 4/9/2020 Solar
56 1/8/2018 Suspended LGIA ERIS Douglas County 100.6 MW 100.6 MW Cascade - Rocky Reach 230kV Line 12/31/2023 Solar
55 1/8/2018 Suspended LGIA ERIS Douglas County 100.6 MW 100.6 MW Cascade - Rocky Reach 230kV Line 12/31/2023 Solar
54 12/27/2017 Suspended LGIA NRIS Grays Harbor County, WA 198.8 MW 198.8 MW Olympia Substation 6/1/2026 Gas Turbine/Combined Cycle
53 10/17/2017 Withdrawn ERIS/NRIS Thurston county, WA 180 MW 180 MW  Tono-Olympia 115kV Line 10/31/2019 Solar
52 10/16/2017 Suspended LGIA ERIS Kittitas County, WA 20 MW 20 MW Cascade-Rocky Reach 230 kV Line 12/31/2025 Wind
51 9/13/2017 Suspended LGIA ERIS Kittitas, County, WA 79.2 MW 79.2 MW Cascade-Rocky Reach 230 kV Line 12/31/2024 Solar
50 6/26/2017 Withdrawn ERIS/NRIS Lewis and Thurston Counties, WA 17.25 MW 17.25 MW Tono Substation 12/31/2018 Wind
49 4/25/2017 Draft LGIA ERIS Kittitas County, WA 100 MW 100 MW Wind Ridge 230kV Substation 12/31/2023 Solar
48 1/26/2017 LGIA ERIS Yellowstone County, MT 300 MW 300 MW Broadview Subsation 12/31/2021 Solar
47 11/30/2016 LGIA ER Meagher County, MT 450 MW 450 MW Colstrip Transmission System - 3 mi. west of Martinsdale 2/1/2023 Hydro Pumped Storage
46 1/19/2016 LGIA NRIS Lewis & Thurston Counties, WA 136.8 MW 136.8 MW Tono Substation Initial: 12/31/2017
Revised: 12/27/2019 		Wind
45 10/29/2015 Suspended LGIA ERIS Kittitas County, WA 80 MW 80 MW Cascade - Rocky Reach 230 kV Line 12/31/2025 Wind
44 12/29/2015 LGIA/In-Service ERIS Rosebud, Prarie and Custer Counties, MT** 750 MW 750 MW Colstrip 500kV Substation 10/1/2021 Wind
43
(PSE Merchant)		 6/9/2015 Withdrawn   Whatcom County, WA 300 kVA 300 kVA Glacier 12 12/1/2015 Battery/Inverter
42 5/14/2015 Withdrawn Both Lewis County, WA 150 MW 150 MW Tono Substation 12/31/2017 Wind
41
(PSE Merchant)		 1/12/2015 Withdrawn   Whatcom County, WA 2 MW 2 MW Glacier 12 12/1/2015 Battery/Inverter
40 12/29/2014 Withdrawn ER Meagher County, MT 600 MW 600 MW Colstrip Transmission System 6/1/2019 Pumped Storage
39 7/22/2014 SGIA /Terminated   Kitsap County, WA 1412 kVA 1412 kVA Murden Cove 16 8/1/2015 Battery/Inverter
38 7/23/2013 Withdrawn Both Rosebud and Custer County, MT** 300.9 MW 300.9 MW Colstrip Substation 12/1/2016 Wind
37 8/28/2012 LGIA / In Service Accepted NR Skagit County, WA 40 MW 20 MW Terrell Substation 11/1/2012 CT
36 11/8/2011 Withdrawn Both Snohomish County, WA 323 MW 323 MW Sedro-Bothell-Horse Ranch or Sedro-Horse Ranch 230 kV Line 12/1/2015 CT
35
(PSE Merchant)		 9/6/2011 LGIA/ In Service NR Skagit County, WA 30.4 MW 30.4 MW Baker River Switching Station 4/1/2013 Hydro
34 7/1/2011 SGIA/ In Service ERIS King County, WA 6 MW 6 MW Snoqualmie Switching Station 11/1/2016 Hydro
33 7/1/2011 SGIA/ In Service ERIS King County, WA 6 MW 6 MW Snoqualmie Switching Station 11/1/2016 Hydro
32 4/20/2011 Withdrawn Both Kiittitas County, WA 176.4 176.4 Cascade-Rocky Reach 230 kV Line 9/1/2014 Wind
31
(PSE Merchant)		 2/14/2011 LGIA/ In Service NR King County, WA 8.3 MW 8.3 MW Snoqualmie Switching Station 3/5/2013 - Plant 1   12/11/2102 - Plant 2 Hydro
30
(PSE Merchant)		 2/1/2011 Withdrawn NR Skagit County, WA 205 MW 232 MW Fredonia Substation  12/1/2014 Gas Turbine
29 1/14/2011 (Date Revised due to typo from 11/14/2011) Withdrawn NR Skagit County, WA 31MW 31MW  Baker River Switching Station 1/1/2013 Hydro
28 11/10/2010 Withdrawn NR Skagit County, WA 225 MW 206 MW Fredonia Substation 12/1/2014 Gas Turbine
27 8/19/2010 Withdrawn   King County, WA 10 MW 10 MW Snoqualmie Switch 3/1/2013 Hydro
26 6/4/2010 Withdrawn   King County, WA 5 MW 5 MW Snoqualmie Sub   2016 Hydro
25 6/4/2010 Withdrawn   King County, WA 5 MW 5 MW Snoqualmie Sub   2016 Hydro
24 5/14/2010 Withdrawn Both Jefferson County, WA 25 MW 25 MW Port Townsend #1 115kV Line 7/15/2012 Biomass
23 4/13/2010 Withdrawn NR Skagit County, WA  346 MW  367 MW Fredonia Substation 12/1/2013 and 12/1/2017 Gas turbine/combined cycle
22 3/16/2010 Withdrawn Both Snohomish County, WA 252 MW 302 MW Beverly Park Substation 11/1/2012 Gas turbine 
21 2/2/2010 Withdrawn NR Skagit County, WA 200 MW 200 MW Fredonia Substation 6/1/2013 Gas turbine
20 1/6/2010 Withdrawn Both Pierce County, WA 340 MW 340 MW Frederickson Substation 6/1/2014  Combined Cycle
19 9/16/2008 Withdrawn ER Wheatland County, MT 200 MW 200 MW Broadview-Townsend 500 kV line near Ringling, MT 12/31/2013 Wind
18 8/12/2008 In Sevice Accepted   Whatcom County, WA 600kW 600kW Lynden distribution feeder (LYN-23) 2009 Biomass
17 6/26/2008 In Service Accepted NR Kittitas County, WA 12 MW 12 MW Wind Ridge 230kV Substation late 2009 Wind
16 6/6/2008 Withdrawn   Kittitas County, WA 9 MW 9 MW Wild Horse-Wind Ridge 230kV Line/Wind Ridge 11/22/2009 Wind
15 3/24/2008 Accepted   Skagit County, WA 750KW 750kW Peths Corner distribution feeder (PET-16) 10/1/2008 Biomass
14 3/10/2008 Withdrawn ER Kittitas, County, WA 190 MW 190 MW Cascade-Rocky Reach 230 kV Line 12/1/2009 Wind
13 9/26/2007 LGIA Both Kittitas County, WA 103.5 MW 103.5 MW Wild Horse-Wind Ridge 230kV Line/Wind Ridge 11/30/2008 Wind
12 6/25/2007 Withdrawn Both Kittitas County, WA 150 MW 150 MW Wild Horse-Wind Ridge 230kV Line/Wind Ridge 9/30/2008 Wind
11 6/15/2007 Withdrawn Both Kittitas County, WA 108 MW 108 MW Cascade-Rocky Reach 230 kV Line 12/1/2008 Wind
10  6/8/2007 In Service Accepted NR Skagit County, WA 85 MW 85 MW Baker River Switching Station 2007 Hydro
9 4/1/2006 Withdrawn NR Whatcom County, WA 610 MW 610 MW Near PSE Arco Substation 4/1/2008 Combustion Turbine
8 1/13/2006 Withdrawn Both Pierce County, WA 287 MW 309 MW Frederickson Substation 8/1/2009 Combustion Turbine
7 12/21/2005 Withdrawn NR Pierce County, WA 102 MW 102 MW Deringer Substation 7/30/2007 Combustion Turbine
6 11/16/2005 Withdrawn Both Kittitas County, WA 100 MW 100 MW IP Line 12/31/2007 Wind
5 10/17/2005 In Service Accepted Both Kittitas County, WA 65 MW 65 MW IP Line 10/15/2007 Wind
4 7/19/2006 In Service Accepted NR Skagit County, WA 31 MW 31 MW Near PSE Fredonia Substation 12/31/2006 Biomass
3 5/23/2005 Withdrawn ER King County, WA 27 MW 27 MW Under Review 10/1/2007 LF Gas
2 1/15/2005 In Service Accepted ER Kittitas County, WA 40 MW 40 MW IP Line 10/1/2005 Wind
1 8/24/2004 Withdrawn   Whatcom County, WA 5.5 MW 5.5 MW Sumas-Bellingham 115 kV 6/1/2006 Heat Recovery
2 Pre Jan 2004 2/5/2003 Withdrawn   Kittitas County 182 MW 182 MW Cascade-Rocky Reach 230 kV Line 11/14/2004 Wind
1 Pre Jan 2004 2/5/2003 Accepted   Kittitas County 200 MW 200 MW IP Line 11/14/2004 Wind
3 Pre Jan 2004 8/19/2003 Withdrawn   Kittitas County 180 MW 180 MW Cascade-Rocky Reach 230 kV Line 11/15/2004 Wind

*PSE retains all studies for 5 years. Study reports are available subject to PSE's CEII procedures.
**Requests on the Colstrip Transmission System are are managed under the Colstrip Transmission Agreement of which interconnection studies will be conducted by NorthWestern. See ER11-4636
5/2020 rev