Benefits

$3.4 billion in gross benefits since Nov 2014 (as of 1/31/2023)

(millions $)
WEIM Participants 2014-2019 2020 2021 2022 Total
Q1 Q2 Q3 Q4
Arizona Public ServiceEntered 10/2016 $140.32 $48.96 $58.79 $7.41 $10.14 $36.42 $34.87 $336.91
Avista UtilitiesEntered 04/2022 $1.95 $5.16 $7.24 $9.73 $24.08
BANCEntered 04/2019 $15.86 $30.36 $129.61 $18.58 $68.09 $111.54 $83.44 $457.48
BPAEntered 05/2022 $4.36 $9.07 $12.96 $26.39
California ISOEntered 11/2014 $191.88 $62.04 $146.00 $63.56 $71.75 $65.99 $88.53 $689.75
Idaho Power CompanyEntered 04/2018 $55.11 $26.30 $52.62 $6.29 $8.44 $12.04 $17.18 $177.98
LADWPEntered 04/2021 $42.71 $10.35 $13.78 $25.79 $25.17 $117.80
NV EnergyEntered 12/2015 $89.03 $24.62 $47.76 $4.41 $8.44 $62.38 $42.33 $278.97
NorthWestern EnergyEntered 06/2021 $12.09 $5.53 $5.90 $6.84 $12.95 $43.31
PacifiCorpEntered 11/2014 $235.29 $40.63 $115.46 $26.40 $35.21 $84.54 $53.87 $591.40
Portland General ElectricEntered 10/2017 $73.27 $31.76 $30.78 $8.59 $11.92 $19.64 $21.11 $197.07
PowerexEntered 04/2018 $19.78 $4.03 $3.08 $1.54 $4.66 $2.76 $3.45 $39.30
PNMEntered 04/2021 $12.53 $3.31 $3.10 $16.63 $11.55 $47.12
Puget Sound EnergyEntered 10/2016 $41.25 $13.68 $20.67 $3.85 $4.90 $7.59 $14.81 $106.75
Salt River ProjectEntered 04/2020 $36.06 $47.90 $5.50 $21.26 $19.28 $31.04 $161.04
Seattle City LightEntered 04/2020 $6.64 $13.92 $3.60 $2.90 $3.67 $4.71 $35.44
Tacoma PowerEntered 04/2022 $0.15 $1.55 $3.84 $4.07 $9.61
TEPEntered 05/2022 $2.84 $26.88 $11.21 $40.93
TIDEntered 04/2021 $5.11 $1.29 $2.85 $4.37 $2.31 $15.93
Total $861.79 $325.08 $739.03 $172.31 $287.44 $526.51 $485.29 $3397.45

Quarterly benefits

These reports quantify the estimated gross benefits from Western Energy Imbalance Market (WEIM) operations.