Western Energy Imbalance Market > About > Benefits

Benefits

$1.28 billion in gross benefits since Nov 2014 (as of 04/29/2021)
(millions $)
EIM Participants 2014 2015 2016 2017 2018 2019 2020 2021 Total
Q1
Arizona Public ServiceEntered 10/2016 $5.98 $34.56 $45.30 $54.48 $48.96 $15.01 $204.29
BANCEntered 04/2019 $15.86 $30.36 $7.53 $53.75
California ISOEntered 11/2014 $1.24 $12.66 $28.34 $36.96 $67.94 $44.74 $62.04 $8.91 $262.83
Idaho Power CompanyEntered 04/2018 $26.88 $28.23 $26.30 $12.54 $93.95
NV EnergyEntered 12/2015 $0.84 $15.57 $24.20 $25.55 $22.87 $24.62 $14.14 $127.79
PacifiCorpEntered 11/2014 $4.73 $26.23 $45.47 $37.41 $61.68 $59.77 $40.63 $20.48 $296.40
Portland General ElectricEntered 10/2017 $2.83 $27.57 $42.87 $31.76 $8.80 $113.83
PowerexEntered 04/2018 $7.84 $11.94 $4.03 $1.17 $24.98
Puget Sound EnergyEntered 10/2016 $1.56 $9.86 $13.68 $16.15 $13.68 $4.31 $59.24
Salt River ProjectEntered 04/2020 $36.06 $5.52 $41.58
Seattle City LightEntered 04/2020 $6.64 $2.60 $9.24
Total $5.97 $39.73 $96.92 $145.82 $276.44 $296.91 $325.08 $101.01 $1287.88

Quarterly benefits

These reports quantify the estimated gross benefits from EIM operations. 

 

ISO greenhouse gas emissions tracking reportsAn accounting of GHG emissions for the ISO balancing authority areaEIM benefit methodology