western energy imbalance market update … · iso confidential page 2 the western energy imbalance...
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ISO Confidential Page 1
Western energy imbalance market update
Mark RothlederVice President, Market Quality & Renewable Integration
Board of Governors MeetingGeneral SessionDecember 13-14, 2017
ISO Confidential Page 2
The western energy imbalance market continues to grow
There are currently six entities in the implementation phase: Spring 2018
~ Idaho Power~ Powerex
Spring 2019~ Seattle City Light~ BANC/ SMUD ~ LADWP
Spring 2020 ~ Salt River Project
In addition to Puget Sound Energy, MBR (market based rate) authority has been applied for and received by PacifiCorp, Portland General and NV Energy.
ISO Confidential Page 3
Gross economic benefits since start of EIM = $254.98M
BAA July August September Q3 – 2017Total
APS 2.52 4.92 3.64 11.08
CAISO 2.01 4.59 1.03 7.63
NVE 2.28 3.41 2.86 8.55
PAC 2.79 4.52 3.00 10.31
PSE 0.97 1.13 0.88 2.98
Total 10.57 18.57 11.41 40.55
BAA 2014 2015 2016 1st Qtr2017
2nd Qtr2017
3rd Qtr2017
YTD2017 Total
APS 5.98 5.23 8.25 11.08 24.56 30.54
CAISO 1.23 12.66 28.34 9.5 15.31 7.63 32.44 74.67
NVE 0.84 15.57 3.5 5.70 8.55 17.75 34.16
PAC 4.73 26.23 45.47 11.47 8.80 10.31 30.58 107.01
PSE 1.56 1.4 2.65 2.98 7.03 8.59
Total 5.96 39.73 96.92 31.1 40.71 40.55 112.36 254.98
ISO Confidential Page 4
Energy imbalance market helps avoid curtailment
Estimated metric tons of CO2 displaced to date = 214,927
0
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120Ja
nFe
bM
ar Apr
May Jun Jul
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Nov De
cJa
nFe
bM
ar Apr
May Jun Jul
Aug
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Nov De
cJa
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2015 2016 2017
Cum
ulat
ive
Avoi
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Curt
ailm
ent (
Gwh)
Ener
gy C
urta
ilmen
ts (
Gwh)
Curtailment Avoided Curtailment Cumulative Avoided Curtailment
ISO Confidential Page 5
Flexible ramping procurement diversity savings for 3rd quarter, 2017
The percentage of savings is the average MW savings divided by the sum of the four individual BAA requirements.
July August September
Direction Up Down Up Down Up Down
Average MW saving 452 487 452 495 425 507
Sum of BAA requirements 1,236 1,232 1,246 1,247 1,274 1,259
Diversity Benefit 37% 40% 36% 40% 33% 40%
ISO Confidential Page 6
Weekly average prices in EIM areas
FMM ELAPRTD ELAPEstimated Proxy
ISO Confidential Page 7
Estimated wheel through transfers in Q3, 2017
-
200,000
400,000
600,000
800,000
1,000,000
1,200,000
1,400,000
AZPS CISO NEVP PACE PACW PSEI
Ene
rgy
(MW
h)
Net Import Net Export Wheel Through
ISO Confidential Page 8
Robust energy transfers observed in 3rd quarter
Avg – 260.6MWMax – 1262MW
Avg – 324MWMax – 1644MW
Avg – 110.7MWMax – 300MW
Avg – 153.2MWMax – 429MW
Avg – 102.3MWMax – 349MW Avg – 143.9MW
Max – 349MW
Avg – 107MWMax – 300MW
Avg – 111.5MWMax – 300MW
Avg – 325.3MWMax – 1827.6MW
Avg – 226MWMax – 1026.3MW
Avg – 97.2MWMax – 331MW
Avg – 181.7MWMax – 362MW
Avg – 146.7MWMax – 865MW
Avg – 164.7MWMax – 719MW
Avg – 135.3MWMax – 735.8MW
Avg – 0MWMax – 0MW
PACEPACW
NEVP
AZPS
PSEI
PG&E
SDGECAISO
CAISO
SCE