HomeMy WebLinkAbout20240222Quarterly Report.pdfLISA O’HARA
Corporate Counsel
lo’hara@idahopower.com
February 22, 2024
Ms. Monica Barrios-Sanchez
Secretary
Idaho Public Utilities Commission
PO Box 83720
Boise, ID 83720-0074
Re: Case No. IPC-E-16-19
Deferral and Recovery of Costs Associated with Participation in Energy
Imbalance Market – California Independent System Operator (“CAISO”)
Quarterly Energy Imbalance Market (“EIM”) Benefits Assessment Report
Dear Ms. Monica Barrios-Sanchez:
Pursuant to Order No. 33706 issued in Case No. IPC-E-16-19, Idaho Power
Company (“Idaho Power” or “Company”) hereby submits the quarterly CAISO Western
EIM Benefits Report (“Report”) for the fourth quarter of 2023. The Report presents
CAISO’s quantification of benefits associated with participation in the Western EIM. For
the fourth quarter of 2023, CAISO estimated Western EIM gross benefits of $9.47 million
for Idaho Power.
The EIM has provided financial benefits to the Company, and ultimately its
customers. However, as discussed in Idaho Power’s prior quarterly compliance filings as
well as the Company’s May 24, 2019, Report of EIM Benefits and Costs of Participation,
CAISO’s calculation of benefits for Idaho Power is overstated due to several of the
modeling assumptions used in its benefit calculation. The Company developed a more
precise methodology, that uses inputs specific to Idaho Power, for determining actual EIM
benefits, the details of which are discussed in the Company’s May 24, 2019, Report of
EIM Benefits and Costs of Participation.
If you have any questions regarding this report, please contact Matt Larkin,
Revenue Requirement Senior Manager, at (208) 388-2461 or mlarkin@idahopower.com.
Sincerely,
Lisa J. O’ Hara
Enclosure
RECEIVED
Thursday, February 22, 2024 11:52:32 AM
IDAHO PUBLIC
UTILITIES COMMISSION
WESTERN ENERGY IMBALANCE MARKET
BENEFITS REPORT
Fourth Quarter 2023
Prepared by: Market Performance and Advanced Analytics
January 31, 2024
WEIM BENEFITS REPORT FOURTH QUARTER 2023
MPP/MP&AA Copyright 2024 California ISO Page 2 of 38
CONTENTS
EXECUTIVE SUMMARY ......................................................................................................... 3
BACKGROUND ...................................................................................................................... 4
WEIM ECONOMIC BENEFITS IN Q4 2023 ......................................................................... 4
CUMULATIVE ECONOMIC BENEFITS SINCE INCEPTION.......................................................... 5
INTER-REGIONAL TRANSFERS ............................................................................................. 6
WHEEL-THROUGH TRANSFERS ............................................................................................ 8
REDUCED RENEWABLE CURTAILMENT AND GHG REDUCTIONS .................................. 13
FLEXIBLE RAMPING PROCUREMENT DIVERSITY SAVINGS ............................................ 15
CONCLUSION ...................................................................................................................... 16
APPENDIX 1: GLOSSARY OF ABBREVIATIONS ................................................................ 17
APPENDIX 2: WEIM TRANSFER VOLUME (MWH) .............................................................. 18
APPENDIX 3: MINIMUM & MAXIMUM FLEXIBLE RAMPING REQUIREMENTS................... 34
WEIM BENEFITS REPORT FOURTH QUARTER 2023
MPP/MP&AA Copyright 2024 California ISO Page 3 of 38
EXECUTIVE SUMMARY
This report presents the benefits associated with
participation in the Western Energy Imbalance Market
(WEIM).
The measured benefits of participation in the WEIM
include cost savings, increased integration of
renewable energy, and improved operational
efficiencies including the reduction of the need for
real-time flexible reserves. The WEIM also provides
significant reliability benefits by enhancing situational
awareness and supporting access to surplus
renewable energy across a broader western footprint.
Q4 2023 Gross Benefits by Participant (entry year)
($ millions)
Arizona Public Service (2016) $11.13
AVANGRID (2023) $6.64
Avista (2022) $4.30
Balancing Authority of Northern California
(2019) $73.12
Bonneville Power Administration (2022) $9.68
California ISO (2014) $25.40
El Paso Electric (2023) $4.00
Idaho Power Company (2018) $9.47
Los Angeles Dept. of Water & Power (2021) $39.10
NV Energy (2015) $22.46
NorthWestern Energy (2021) $7.57
PacifiCorp (2014) $50.46
Portland General Electric (2017) $11.58
Public Service Company New Mexico (2021) $6.17
Puget Sound Energy (2016) $15.17
Powerex (2018) $43.96
Seattle City Light (2020) $3.65
Salt River Project (2020) $22.03
Tacoma Power (2022) $2.80
Tucson Electric Power (2022) $5.90
Turlock Irrigation District (2021) $1.06
WAPA Desert Southwest Region (2023) $16.17
Total $391.82
Gross benefits from WEIM since November 2014
$5.05 billion
ECONOMICAL
$391.82 M
Gross benefits realized due to
more efficient inter-and intra-
regional dispatch in the Fifteen-
Minute Market (FMM) and Real-
Time Dispatch (RTD)*
ENVIRONMENTAL
21,349
Metric tons of CO2** avoided
curtailments
OPERATIONAL
58%
Average reduction in flexibility
reserves across the footprint
2023
Q4 BENEFITS
WEIM BENEFITS REPORT FOURTH QUARTER 2023
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This analysis demonstrates the benefit of economic dispatch in the real time market across a
larger WEIM footprint with diverse resources and geography.
*WEIM Quarterly Benefit Report Methodology: https://www.westerneim.com/Documents/EIM-BenefitMethodology.pdf.
**The GHG emission reduction reported is associated with the avoided curtailment only. The current market process and
counterfactual methodology cannot differentiate the GHG emissions resulting from serving ISO load via the WEIM versus dispatch
that would have occurred external to the ISO without the WEIM. For more details, see
http://www.caiso.com/Documents/GreenhouseGasEmissionsTrackingReport-FrequentlyAskedQuestions.pdf
BACKGROUND
The WEIM began financially binding operation on November 1, 2014, by optimizing resources
across the ISO and PacifiCorp Balancing Authority Areas (BAAs). Since then, the WEIM has
continued to grow and now includes 22 market participants and represents nearly 80% of the
demand for electricity in the Western interconnection. Today, the WEIM footprint includes
portions of Arizona, California, Idaho, Montana, Nevada, New Mexico, Oregon, Utah,
Washington, Wyoming, Texas and extends to the border with Canada.
WEIM ECONOMIC BENEFITS IN Q4 2023
Table 2 shows the estimated WEIM gross benefits by each region per month1. The monthly
savings presented show $133.36 million for October, $149.85 million for November and $108.61
million for December with a total estimated benefit of $391.82 million for this quarter2. This level
of WEIM benefits accrued from having additional WEIM areas participating in the market and
economical transfers displacing more expensive generation.
1 The WEIM benefits reported here are calculated based on available data. Intervals without complete data are
excluded in the calculation. The intervals excluded due to unavailable data are normally within a few percent
points of the total intervals. 2 For several quarterly estimates, CAISO benefits were calculated on a variation of the counterfactual
methodology. For CAISO only the logic had considered offline resources as part of the bid stack in the
counterfactual. In Q4 2021, CAISO identified some questionable results that drove persistent negative benefits
for CAISO when considering offline resources. Since Q4 2021, the benefit calculation for CAISO area follows
the same methodology applicable to all WEIM entities in which only online resources are used.
WEIM BENEFITS REPORT FOURTH QUARTER 2023
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Region October November December Total
APS $5.06 $3.92 $2.15 $11.13
AVRN $2.96 $1.75 $1.93 $6.64
AVA $2.37 $1.17 $0.76 $4.30
BANC $9.09 $42.44 $21.59 $73.12
BPA $6.01 $2.25 $1.42 $9.68
CISO $10.69 $9.86 $4.85 $25.40
EPE $2.54 $0.74 $0.72 $4.00
IPCO $4.27 $3.40 $1.80 $9.47
LADWP $11.99 $15.98 $11.13 $39.10
NVE $9.40 $6.29 $6.77 $22.46
NWMT $2.76 $3.07 $1.74 $7.57
PAC $15.74 $14.97 $19.75 $50.46
PGE $4.99 $3.08 $3.51 $11.58
PNM $1.74 $2.61 $1.82 $6.17
PSE $2.82 $4.75 $7.60 $15.17
PWRX $20.87 $16.50 $6.59 $43.96
SCL $1.20 $1.12 $1.33 $3.65
SRP $7.76 $7.58 $6.69 $22.03
TPWR $1.10 $0.90 $0.80 $2.80
TEP $2.08 $2.58 $1.24 $5.90
TID $0.34 $0.45 $0.27 $1.06
WALC $7.58 $4.44 $4.15 $16.17
Total $133.36 $149.85 $108.61 $391.82
TABLE 1: Q4 2023 benefits in millions USD
CUMULATIVE ECONOMIC BENEFITS SINCE INCEPTION
Since the start of the WEIM in November 2014, the cumulative economic benefits of the market
have totaled $5.05 billion. The quarterly benefits have grown over time as a result of the
participation of new BAAs, which results in benefits for both the individual BAA but also
compounds the benefits to adjacent BAAs through additional transfers. The ISO began
publishing quarterly WEIM benefit reports in April 2015.3
Graph 1 illustrates the gross economic benefits of the WEIM by quarter for each participating
BAA.
3 Prior reports are available at https://www.westerneim.com/Pages/About/QuarterlyBenefits.aspx
WEIM BENEFITS REPORT FOURTH QUARTER 2023
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GRAPH 1: Cumulative economic benefits for each quarter by BAA
INTER-REGIONAL TRANSFERS
A significant contributor to WEIM benefits is transfers across balancing areas, providing access
to lower cost supply, while factoring in the cost of compliance with greenhouse gas (GHG)
emissions regulations when energy is transferred into the ISO. As such, the transfer volumes
are a good indicator of a portion of the benefits attributed to the WEIM. Transfers can take place
in both the 15-Minute Market and Real-Time Dispatch (RTD).
Generally, transfer limits are based on transmission and interchange rights that participating
balancing authority areas make available to the WEIM, with the exception of the PacifiCorp
West (PACW) -ISO transfer limit and the Portland General Electric (PGE) -ISO transfer limit in
RTD. These RTD transfer capacities between PACW/PGE and the ISO are determined based
on the allocated dynamic transfer capability driven by system operating conditions. This report
does not quantify a BAA’s opportunity cost that the utility considered when using its transfer
rights for the WEIM.
Appendix 2 provides the 15-minute and 5-minute WEIM transfer volumes with base schedule
transfers excluded. The WEIM entities submit inter-BAA transfers in their base schedules. The
benefits quantified in this report are only attributable to the transfers that occurred through the
WEIM. The benefits do not include any transfers attributed to transfers submitted in the base
schedules that are scheduled prior to the start of the WEIM.
The transfer from BAA_x to BAA_y and the transfer from BAA_y to BAA_x are separately
reported. For example, if there is a 100 Megawatt-Hour (MWh) transfer during a 5-minute
interval, in addition to a base transfer from ISO to NVE, it will be reported as 100 MWh
from_BAA ISO to_BAA NEVP, and 0 MWh from_BAA NEVP to_BAA ISO in the opposite
WEIM BENEFITS REPORT FOURTH QUARTER 2023
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direction. The 15-minute transfer volume is the result of optimization in the 15-minute market
using all bids and base schedules submitted into the WEIM. The 5-minute transfer volume is the
result of optimization using all bids and base schedules submitted into WEIM, based on unit
commitments determined in the 15-minute market optimization.
GRAPH 2: WEIM transfer
WEIM BENEFITS REPORT FOURTH QUARTER 2023
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WHEEL-THROUGH TRANSFERS
As the footprint of the WEIM grows, wheel-through transfers may become more common. In
order to derive the wheel-through transfers for each WEIM BAA, the ISO uses the following
calculation for every real-time interval dispatch:
Total import: summation of transfers above base transfers coming into the WEIM
BAA under analysis
Total export: summation of all transfers above base transfers going out of the WEIM
BAA under analysis
Net import: the maximum of zero or the difference between total imports and total
exports
Net export: the maximum of zero or the difference between total exports and total
imports
Wheel-through: the minimum of the WEIM transfers into (total import) or WEIM
transfer out (total export) of a BAA for a given interval
All wheel-through transfers are summed over both the month and the quarter.
Currently, a WEIM entity facilitating a wheel through receives no direct financial benefit for
facilitating the wheel; only the sink and source directly benefit. As part of the WEIM
Consolidated Initiatives stakeholder process, the ISO committed to monitoring the wheel
through volumes to assess whether, after the addition of new WEIM entities, there is a potential
future need to pursue a market solution to address the equitable sharing of wheeling benefits.
The ISO will continue to track the volume of wheel-through transfers in the WEIM market in the
quarterly reports.
This volume reflects the total wheel-through transfers for each WEIM BAA, regardless of the
potential paths used to wheel through. The net imports and exports estimated in this section
reflect the overall volume of net imports and exports; in contrast, the imports and exports
provided in Table 2 reflect the gross transfers between two WEIM BAAs.
The metric is measured as energy in MWh for each month and the corresponding calendar
quarter, as shown in Tables 3 through 6 and Graphs 3 through 6.
BAA Net Export Net Import Wheel Through
AVA 45,865 126,051 58,800
AVRN 179,807 47,755 29,443
AZPS 361,407 121,086 379,452
BANC 19,787 389,790 1,234
BPAT 84,096 294,891 119,752
CISO 1,403,521 735,579 1,140,739
EPE 205,328 43,308 316
IPCO 110,234 352,011 160,259
LADWP 86,025 327,256 109,421
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TABLE 2: Estimated wheel-through transfers in Q4 2023
GRAPH 3: Estimated wheel-through transfers in Q4 2023
BAA Net Export Net Import Wheel Through
AVA 12,796 41,650 32,312
AVRN 66,863 11,734 9,369
AZPS 146,351 62,703 112,429
BANC 6,752 137,028 0
BPAT 18,063 142,310 30,546
CISO 511,291 301,685 373,505
NEVP 417,152 114,315 224,859
NWMT 109,402 33,466 39,210
PACE 538,108 254,440 139,877
PACW 212,850 178,698 292,674
PGE 107,557 179,717 90,363
PNM 200,096 59,280 84,317
PSEI 120,469 158,052 92,020
PWRX 685 1,266,745 7,287
SCL 31,965 48,310 19,771
SRP 629,470 299,820 9,697
TEPC 310,665 86,209 115,989
TIDC 36,755 21,642 -
TPWR 16,563 37,120 15,277
WALC 31,029 83,293 397,957
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EPE 123,837 9,865 1
IPCO 43,614 101,205 76,948
LADWP 19,872 124,216 41,524
NEVP 170,495 25,077 101,918
NWMT 31,331 14,891 10,198
PACE 210,941 52,534 65,706
PACW 44,626 80,531 109,804
PGE 34,153 55,496 38,155
PNM 58,112 30,004 28,274
PSEI 35,680 51,355 36,028
PWRX 496 396,345 3,478
SCL 13,914 9,619 4,816
SRP 181,905 116,273 7,433
TEPC 110,840 44,063 86,232
TIDC 9,631 10,565 -
TPWR 4,445 15,732 2,733
WALC 6,306 27,435 193,047
TABLE 3: Estimated wheel-through transfers in October 2023
GRAPH 4: Estimated wheel-through transfers in October 2023
WEIM BENEFITS REPORT FOURTH QUARTER 2023
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BAA Net Export Net Import Wheel Through
AVA 12,098 45,751 17,122
AVRN 51,857 18,006 11,350
AZPS 115,500 35,453 162,505
BANC 1,775 148,213 1,234
BPAT 40,222 77,964 38,252
CISO 548,124 182,564 360,665
EPE 33,586 12,481 -
IPCO 31,743 128,173 45,183
LADWP 22,033 108,662 30,452
NEVP 102,862 41,635 74,896
NWMT 42,333 8,557 12,040
PACE 172,272 109,568 39,979
PACW 73,663 53,556 93,058
PGE 27,815 69,287 29,725
PNM 72,212 16,005 31,916
PSEI 46,929 41,354 27,368
PWRX 107 414,765 1,196
SCL 8,641 22,611 8,924
SRP 184,270 117,339 2,034
TEPC 103,980 21,050 4,962
TIDC 12,133 6,525 -
TPWR 3,868 13,353 9,360
WALC 11,384 26,535 91,663
TABLE 4: Estimated wheel-through transfers in November 2023
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GRAPH 5: Estimated wheel-through transfers in November 2023
BAA Net Export Net Import Wheel Through
AVA 20,971 38,649 9,366
AVRN 61,087 18,015 8,723
AZPS 99,556 22,930 104,518
BANC 11,260 104,550 -
BPAT 25,811 74,617 50,953
CISO 344,106 251,329 406,569
EPE 47,905 20,962 315
IPCO 34,878 122,633 38,128
LADWP 44,121 94,377 37,445
NEVP 143,795 47,602 48,044
NWMT 35,737 10,018 16,972
PACE 154,896 92,338 34,193
PACW 94,561 44,611 89,812
PGE 45,589 54,935 22,483
PNM 69,771 13,271 24,127
PSEI 37,859 65,343 28,624
PWRX 82 455,634 2,613
SCL 9,409 16,081 6,031
SRP 263,295 66,208 230
TEPC 95,845 21,097 24,795
TIDC 14,991 4,552 -
TPWR 8,249 8,036 3,184
WALC 13,338 29,323 113,247
TABLE 5: Estimated wheel-through transfers in December 2023
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GRAPH 6: Estimated wheel-through transfers in December 2023
REDUCED RENEWABLE CURTAILMENT AND GHG REDUCTIONS
The WEIM benefit calculation includes the economic benefits that can be attributed to avoided
renewable curtailment within the ISO footprint. If not for energy transfers facilitated by the
WEIM, some renewable generation located within the ISO would have been curta iled via either
economic or exceptional dispatch. The total avoided renewable curtailment volume in MWh for
Q4 2023 was calculated to be 22,593 MWh (October) + 19,573 MWh (November) + 7,714 MWh
(December) = 49,880 MWh total.
There are environmental benefits of avoided renewable curtailment as well. Under the
assumption that avoided renewable curtailments displace production from other resources at a
default emission rate of 0.428 metric tons CO2/MWh, avoided curtailments displaced an
estimated 21,349 metric tons of CO2 for Q4 2023. Avoided renewable curtailments also may
have contributed to an increased volume of renewable credits that would otherwise have been
unavailable. This report does not quantify the additional value in dollars associated with this
benefit. Total estimated reductions in the curtailment of renewable energy in the ISO footprint,
along with the associated reductions in CO2, are shown in Table 7.
Year Quarter MWh Eq. Tons CO2
1 8,860 3,792
2015 2 3,629 1,553
WEIM BENEFITS REPORT FOURTH QUARTER 2023
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3 828 354
4 17,765 7,521
1 112,948 48,342
2016 2 158,806 67,969 3 33,094 14,164
4 23,390 10,011
1 52,651 22,535
2017 2 67,055 28,700
3 23,331 9,986
4 18,060 7,730
1 65,860 28,188
2018 2 129,128 55,267
3 19,032 8,146
4 23,425 10,026
1 52,254 22,365
2019 2 132,937 56,897
3 33,843 14,485
4 35,254 15,089
1 86,740 37,125
2020 2 147,514 63,136
3 37,548 16,071
4 39,956 17,101
2021 1 76,147 32,591
2 109,059 46,677
3 23,042 9,862
4 38,044 16,283
2022 1 94,168 40,304
2 118,352 50,655
3 42,468 18,176
4 25,609 10,960
2023 1 53,002 22,685
2 148,938 63,745
3 60,113 25,728
4 49,880 21,349
Total 2,162,730 925,568
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TABLE 6: Total reduction in curtailment of renewable energy and associated reductions in CO2
FLEXIBLE RAMPING PROCUREMENT DIVERSITY SAVINGS
The WEIM facilitates procurement of flexible ramping capacity in the FMM to address variability
that may occur in the RTD. Because variability across different BAAs may happen in opposite
directions, the flexible ramping requirement for the entire WEIM footprint can be less than the
sum of individual BAA’s requirements. This difference is known as flexible ramping procurement
diversity savings.
Starting in 2016, the ISO replaced the flexible ramping constraint with flexible ramping products
that provide both upward and downward ramping. The minimum and maximum flexible ramping
requirements for each BAA and for each direction are listed in Appendix 3: Minimum &
Maximum Ramping Requirements.
The flexible ramping procurement diversity savings for all the intervals averaged over the month
are shown in Table 7. The percentage savings is the average MW savings divided by the sum of
the individual BAA requirements.
October November December
Direction Up Down Up Down Up Down
Average MW saving 1,746 1,924 1,705 1,848 1,668 1,824
Sum of BAA requirements 3,196 3,160 3,128 2,995 3,082 3,026
Percentage savings 55% 61% 55% 62% 54% 60%
Table 7: Flexible ramping procurement diversity savings in Q4 2023
Flexible ramping capacity may be used in RTD to handle uncertainties in the future interval. The
RTD flexible ramping capacity is prorated to each BAA. Flexible ramping surplus MW is defined
as the awarded flexible ramping capacity in RTD minus its share, and the flexible ramping
surplus cost is defined as the flexible ramping surplus MW multiplied by the flexible ramping
WEIM-wide marginal price. A positive flexible ramping surplus MW is the capacity that a BAA
provided to help other BAAs, and a negative flexible ramping surplus MW is the capacity that a
BAA received from other BAAs.
The WEIM dispatch cost for a BAA with positive flexible ramping surplus MW is increased
because some capacities are used to help other BAAs. The flexible ramping surplus cost is
subtracted from the BAA’s WEIM dispatch cost to reflect the true dispatch cost of a BAA. Please
see the Benefit Report Methodology for more details.
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CONCLUSION
Using state-of-the-art technology to find and deliver low-cost energy to meet real-time demand,
the WEIM demonstrates that utilities can realize financial and operational benefits through
increased coordination and optimization. The WEIM provides significant reliability benefits by
enhancing situational awareness and supporting access to surplus energy across a broader
western footprint. In addition to these benefits, the WEIM provides significant environmental
benefits through the reduction of renewable curtailments during periods of oversupply.
Sharing resources across a larger geographic area reduces greenhouse gas emissions by using
renewable generation that otherwise would have been turned off. The quantified environmental
benefits from avoided curtailments of renewable generation from 2015 to-date reached 925,568
metric tons of CO2, roughly the equivalent of avoiding the emissions from 194,597 passenger
cars driven for one year.
WEIM BENEFITS REPORT FOURTH QUARTER 2023
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APPENDIX 1: GLOSSARY OF ABBREVIATIONS
Abbreviation Description
APS Arizona Public Service
AVA Avista Utilities
AVRN Avangrid
BAA Balancing Authority Area
BANC Balancing Authority of Northern California
BPA Bonneville Power Administration
CISO, ISO California ISO
EIM Energy Imbalance Market
EPE El Paso Electric
FMM Fifteen Minute Market
GHG Greenhouse Gas
IPCO Idaho Power
LADWP Los Angeles Department of Water and Power
MW Megawatt
MWh Megawatt-Hour
NVE NV Energy
NWMT NorthWestern Energy
PAC PacifiCorp
PACE PacifiCorp East
PACW PacifiCorp West
PGE Portland General Electric
PNM Public Service Company of New Mexico
PSE Puget Sound Energy
PWRX Powerex
RTD Real Time Dispatch
SCL Seattle City Light
SRP Salt River Project
TEP Tucson Electric Power
TID Turlock Irrigation District
TPWR Tacoma Power
WALC
Western Area Power Administration Desert
Southwest
WEIM Western Energy Imbalance Market
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APPENDIX 2: WEIM Transfer Volume (MWh)
Month
From BAA
To BAA
15min WEIM transfer
(15m – base)
5min WEIM transfer
(5m – base)
AVA AVRN 1,720 1,911
October AVA BPAT 35,646 31,576
AVA CISO 0 0
AVA IPCO 3,482 4,620
AVA NWMT 2,747 4,004
AVA PACW 4,526 2,997
AVA PGE 0 0
AVA PSEI 38 0
AVA SCL 0 0
AVA TPWR 0 0
AVRN AVA 2,618 2,304
AVRN BPAT 34,793 31,186
AVRN PACW 25,663 28,546
AVRN PGE 13,669 10,487
AVRN SCL 5,812 3,710
AZPS CISO 163,231 179,952
AZPS EPE 840 0
AZPS LADWP 42,232 19,515
AZPS NEVP 0 0
AZPS PACE 42,329 30,249
AZPS PNM 22,745 21,887
AZPS SRP 6,632 4,211
AZPS TEPC 1,311 8
October AZPS WALC 6,649 2,958
BANC BPAT 0 0
BANC CISO 5,129 6,669
BANC TIDC 402 83
BPAT AVA 3,395 2,351
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BPAT AVRN 2,209 2,569
October BPAT BANC 0 0
BPAT CISO 3,358 6,852
BPAT IPCO 3,407 477
BPAT LADWP 0 0
BPAT NEVP 0 0
BPAT NWMT 6,073 1,564
BPAT PACW 4,756 943 BPAT PGE 9,793 8,517 BPAT PSEI 13,267 15,324
BPAT PWRX 7,930 0
BPAT SCL 1,121 665
BPAT TPWR 9,712 9,348
CISO AVA 0 0
CISO AZPS 56,655 60,545
CISO BANC 125,088 133,190
CISO BPAT 9,157 18,410
CISO LADWP 51,419 54,698
CISO NEVP 41,245 44,260
CISO PACW 0 15,917
CISO PGE 26,154 40,355
CISO PWRX 354,740 371,022
CISO SRP 103,308 106,482
CISO TEPC 59 237
CISO TIDC 9,083 10,482
CISO WALC 23,622 25,512
October EPE AZPS 1,240 0 EPE PNM 33,428 32,767 EPE TEPC 92,369 91,071
IPCO AVA 48,664 39,792
IPCO BPAT 13,179 13,077
IPCO NEVP 8,759 9,075
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IPCO NWMT 1,460 2,603
IPCO PACE 8,414 2,146
October IPCO PACW 55,525 46,498
IPCO PSEI 1,687 2,062
IPCO SCL 6,528 5,309
LADWP AZPS 1,495 1,570
LADWP BPAT 0 0
LADWP CISO 21,229 31,459
LADWP NEVP 19,432 13,093
LADWP PACE 23,764 14,819
LADWP TEPC 0 0
LADWP WALC 4,793 456
NEVP AZPS 0 0
NEVP BPAT 0 0
NEVP CISO 84,646 85,686
NEVP IPCO 99,581 75,737
NEVP LADWP 29,840 28,572
NEVP PACE 81,101 67,906
NEVP WALC 20,254 14,512
NWMT AVA 28,410 24,037
NWMT BPAT 8,730 6,543
NWMT IPCO 6,905 7,842
NWMT PACE 8,292 3,107
NWMT PACW 3 0
NWMT PGE 13 0
October NWMT PSEI 137 0
NWMT TPWR 0 0
PACE AZPS 19,086 24,751
PACE IPCO 90,926 78,687
PACE LADWP 37,211 47,651
PACE NEVP 38,657 34,314
PACE NWMT 17,468 16,918
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PACE PACW 85,911 74,325
PACE SRP 0 0
October PACE TEPC 0 0
PACW AVA 5,609 5,478
PACW AVRN 7,080 10,217
PACW BPAT 13,154 14,268
PACW CISO 18,496 31,264
PACW IPCO 12,807 8,598
PACW NWMT 2 0
PACW PGE 42,053 33,487
PACW PSEI 51,382 50,493
PACW SCL 885 624
PGE AVA 0 0
PGE AVRN 2,866 4,174
PGE BPAT 30,763 31,192
PGE CISO 25,924 20,523
PGE NWMT 56 0
PGE PACW 13,347 15,720
October PGE PSEI 0 0
PGE SCL 841 699
PGE TPWR 0 0
PNM AZPS 77,084 77,200
PNM EPE 4,648 5,266
PNM SRP 1,653 1,134
PNM TEPC 4,010 2,786
PSEI AVA 59 0
PSEI BPAT 21,951 18,129
PSEI IPCO 0 0
PSEI NWMT 22 0
PSEI PACW 4,135 5,028
PSEI PGE 0 0
PSEI PWRX 29,420 28,801
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PSEI SCL 5,245 3,428
PSEI TPWR 10,017 9,117
October PWRX BPAT 4,459 0
PWRX CISO 0 0
PWRX PSEI 2,789 3,975
SCL AVA 4 0
SCL AVRN 926 2,233
SCL BPAT 2,202 4,295
SCL IPCO 1,098 2,193
SCL PACW 155 359
SCL PGE 616 804
SCL PSEI 4,762 8,846
SRP AZPS 14,375 8,034
SRP CISO 150,508 168,446
SRP PACE 0 0
SRP PNM 52 37
SRP TEPC 9,128 7,470
SRP WALC 20,748 5,352
TEPC AZPS 1,257 48
TEPC CISO 8,242 7,594
TEPC EPE 4,832 4,600
TEPC LADWP 55 0
TEPC PACE 40 13
TEPC PNM 7,070 3,587
TEPC SRP 11,842 9,537
October TEPC WALC 177,723 171,692
TIDC BANC 5,522 3,839
TIDC CISO 4,460 5,792
TPWR AVA 0 0
TPWR BPAT 4,067 4,180
TPWR NWMT 0 0
TPWR PGE 0 0
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TPWR PSEI 2,869 2,998
WALC AZPS 5,045 2,983
WALC CISO 114,870 123,746
WALC LADWP 23,921 15,304
WALC NEVP 50,826 26,254
WALC SRP 3,247 2,342
WALC TEPC 28,821 28,724
November AVA AVRN 3,054 3,050
AVA BPAT 11,659 9,854
AVA CISO 0 0
AVA IPCO 8,635 9,886
AVA NWMT 3,092 3,306
AVA PACW 3,289 3,124
AVA PGE 0 0
AVA PSEI 0 0
AVA SCL 0 0
AVA TPWR 0 0
AVRN AVA 3,926 4,032
AVRN BPAT 24,555 21,434
AVRN PACW 21,435 22,495
AVRN PGE 10,176 9,557
AVRN SCL 6,993 5,688
AZPS CISO 160,424 151,513
AZPS EPE 1,350 0
AZPS LADWP 24,849 22,609
AZPS NEVP 0 0
AZPS PACE 82,820 72,142
November AZPS PNM 16,421 11,951
AZPS SRP 20,596 17,817
AZPS TEPC 430 3
AZPS WALC 2,960 1,970
BANC BPAT 0 0
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BANC CISO 1,652 1,657
BANC TIDC 1,352 1,352
November BPAT AVA 8,728 8,685
BPAT AVRN 4,651 4,616
BPAT BANC 0 0
BPAT CISO 5,518 14,948
BPAT IPCO 6,182 4,966
BPAT LADWP 0 0
BPAT NEVP 0 0
BPAT NWMT 8,188 3,329
BPAT PACW 4,227 2,744
BPAT PGE 14,002 11,239
BPAT PSEI 13,757 13,923
BPAT PWRX 7,256 0
BPAT SCL 6,669 2,989
BPAT TPWR 11,856 11,035
CISO AVA 0 0
CISO AZPS 58,530 59,080
CISO BANC 136,095 138,197
CISO BPAT 11,841 29,807
CISO LADWP 44,092 39,841
CISO NEVP 57,613 49,580
CISO PACW 16,154 49,803
CISO PGE 38,649 54,708
CISO PWRX 363,579 384,967
CISO SRP 77,368 80,011
November CISO TEPC 0 0
CISO TIDC 4,871 5,173
CISO WALC 15,880 16,642
EPE AZPS 1,442 0
EPE PNM 32,209 30,923
EPE TEPC 3,186 2,662
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IPCO AVA 21,369 17,401
IPCO BPAT 18,290 13,155
November IPCO NEVP 13,992 13,325
IPCO NWMT 615 1,037
IPCO PACE 10,694 7,606
IPCO PACW 18,468 13,297
IPCO PSEI 4,592 3,550
IPCO SCL 9,935 7,555
LADWP AZPS 825 971 LADWP BPAT 0 0
LADWP CISO 25,722 27,211
LADWP NEVP 10,588 8,221
LADWP PACE 18,332 15,784
LADWP TEPC 0 0
LADWP WALC 2,269 297
NEVP AZPS 0 0
NEVP BPAT 0 0
NEVP CISO 48,688 45,280
NEVP IPCO 64,145 54,840
NEVP LADWP 30,104 29,510
NEVP PACE 49,667 40,865
NEVP WALC 7,385 7,265
NWMT AVA 29,190 25,460
NWMT BPAT 8,263 4,272
NWMT IPCO 10,958 11,493
NWMT PACE 16,574 13,148
November NWMT PACW 39 0 NWMT PGE 3 0 NWMT PSEI 85 0
NWMT TPWR 0 0
PACE AZPS 42,146 45,273
PACE IPCO 75,460 66,315
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PACE LADWP 32,536 37,106
PACE NEVP 20,278 24,230
November PACE NWMT 15,283 12,925
PACE PACW 34,367 26,401
PACE SRP 0 0
PACE TEPC 0 0
PACW AVA 5,750 7,295
PACW AVRN 11,368 15,709
PACW BPAT 7,679 4,768
PACW CISO 41,534 59,373
PACW IPCO 15,275 20,561
PACW NWMT 12 0
PACW PGE 26,556 22,865
PACW PSEI 32,399 35,208
PACW SCL 1,149 941
PGE AVA 0 0
PGE AVRN 2,799 3,958
PGE BPAT 19,808 18,185
PGE CISO 17,577 15,959
PGE NWMT 24 0
PGE PACW 16,127 18,358
PGE PSEI 0 0
PGE SCL 1,178 1,081
PGE TPWR 0 0
PNM AZPS 81,109 83,856
PNM EPE 14,965 10,283
November PNM SRP 5,492 4,584
PNM TEPC 5,556 5,406
PSEI AVA 0 0
PSEI BPAT 7,855 6,041
PSEI IPCO 0 0
PSEI NWMT 74 0
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PSEI PACW 9,302 10,016
PSEI PGE 3 2
November PSEI PWRX 31,805 30,994
PSEI SCL 14,189 13,281
PSEI TPWR 11,012 11,677
PWRX BPAT 5,793 0
PWRX CISO 0 0
PWRX PSEI 1,027 1,302
SCL AVA 0 0
SCL AVRN 1,150 2,022
SCL BPAT 1,906 1,943
SCL IPCO 3,797 5,296
SCL PACW 263 376
SCL PGE 439 641
SCL PSEI 4,299 7,288
SRP AZPS 6,675 7,296
SRP CISO 173,236 169,786
SRP PACE 0 0
SRP PNM 755 393
SRP TEPC 5,447 2,842
SRP WALC 9,306 5,988
TEPC AZPS 657 0
November TEPC CISO 1,172 1,237
TEPC EPE 3,811 2,198
TEPC LADWP 0 0
TEPC PACE 29 2
TEPC PNM 9,696 4,654
TEPC SRP 16,724 14,816
TEPC WALC 87,141 86,036
TIDC BANC 11,679 11,250
TIDC CISO 883 884
TPWR AVA 0 0
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TPWR BPAT 6,448 6,758
TPWR NWMT 0 0
TPWR PGE 0 0
TPWR PSEI 6,780 6,471
WALC AZPS 6,198 1,484
WALC CISO 50,439 53,095
WALC LADWP 11,960 10,048
WALC NEVP 24,198 21,177
WALC SRP 2,754 2,145
WALC TEPC 14,796 15,098
December AVA AVRN 2,443 2,749
AVA BPAT 9,652 8,367
AVA CISO 0 0
AVA IPCO 10,211 11,365
AVA NWMT 4,544 5,783
AVA PACW 1,655 2,074
AVA PGE 0 0
AVA PSEI 4 0
AVA SCL 0 0
AVA TPWR 0 0
AVRN AVA 3,490 3,014
AVRN BPAT 25,281 23,418
AVRN PACW 26,067 29,860
AVRN PGE 11,239 8,981
AVRN SCL 6,475 4,538
AZPS CISO 132,047 113,569
December AZPS EPE 503 0
AZPS LADWP 23,841 25,646
AZPS NEVP 0 0
AZPS PACE 41,150 41,958
AZPS PNM 10,183 6,197
AZPS SRP 10,029 10,621
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AZPS TEPC 346 63
AZPS WALC 6,210 6,020
December BANC BPAT 0 0
BANC CISO 11,099 11,016
BANC TIDC 308 244
BPAT AVA 5,740 4,442
BPAT AVRN 3,964 3,709
BPAT BANC 0 0
BPAT CISO 5,681 14,425
BPAT IPCO 5,828 3,164
BPAT LADWP 0 0
BPAT NEVP 0 0
BPAT NWMT 6,355 2,449
BPAT PACW 2,783 1,105
BPAT PGE 9,672 9,287
BPAT PSEI 27,752 28,730
BPAT PWRX 3,784 0
BPAT SCL 3,283 2,436
BPAT TPWR 6,915 7,017
CISO AVA 0 0
CISO AZPS 11,795 11,722
CISO BANC 90,180 94,319
CISO BPAT 14,897 33,313
CISO LADWP 27,943 29,742
CISO NEVP 14,208 12,841
CISO PACW 25,083 46,359
December CISO PGE 26,984 36,344 CISO PWRX 394,392 425,776 CISO SRP 47,414 45,507
CISO TEPC 0 0
CISO TIDC 3,480 4,309
CISO WALC 10,225 9,614
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EPE AZPS 529 0
EPE PNM 22,715 24,465
December EPE TEPC 21,832 23,756
IPCO AVA 19,458 14,955
IPCO BPAT 8,390 7,364
IPCO NEVP 20,423 17,778
IPCO NWMT 1,180 1,391
IPCO PACE 16,764 12,638 IPCO PACW 16,650 11,517 IPCO PSEI 175 212
IPCO SCL 8,458 7,150
LADWP AZPS 1,065 887
LADWP BPAT 0 0
LADWP CISO 55,604 50,242
LADWP NEVP 8,570 10,494
LADWP PACE 20,394 19,297
LADWP TEPC 0 0
LADWP WALC 3,294 645
NEVP AZPS 0 0
NEVP BPAT 0 0
NEVP CISO 77,644 67,694
NEVP IPCO 53,463 46,524
NEVP LADWP 28,792 26,584
NEVP PACE 45,130 35,513
NEVP WALC 18,527 15,524
NWMT AVA 21,924 20,262
December NWMT BPAT 9,717 7,215
NWMT IPCO 7,692 8,118
NWMT PACE 18,138 17,115
NWMT PACW 24 0
NWMT PGE 7 0
NWMT PSEI 34 0
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NWMT TPWR 0 0
PACE AZPS 24,542 27,212
December PACE IPCO 68,885 59,686
PACE LADWP 38,155 34,778
PACE NEVP 24,613 27,771
PACE NWMT 16,291 17,367
PACE PACW 27,249 22,274
PACE SRP 0 0
PACE TEPC 0 0
PACW AVA 4,649 5,342
PACW AVRN 10,539 14,653
PACW BPAT 8,303 5,089
PACW CISO 37,699 62,804
PACW IPCO 31,406 27,723
PACW NWMT 2 0
PACW PGE 26,635 22,083
PACW PSEI 47,832 45,760
PACW SCL 1,226 918
PGE AVA 0 0
PGE AVRN 2,832 3,719
PGE BPAT 21,113 22,162
PGE CISO 28,416 28,111
PGE NWMT 9 0
PGE PACW 10,654 12,966
PGE PSEI 3 0
PGE SCL 1,244 1,114
December PGE TPWR 0 0
PNM AZPS 65,028 74,743
PNM EPE 17,835 12,783
PNM SRP 0 0
PNM TEPC 4,621 6,372
PSEI AVA 0 0
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PSEI BPAT 12,149 14,628
PSEI IPCO 0 0
December PSEI NWMT 30 0
PSEI PACW 5,718 7,964
PSEI PGE 0 0
PSEI PWRX 34,262 32,472
PSEI SCL 7,085 5,956
PSEI TPWR 3,965 4,203
PWRX BPAT 6,371 0
PWRX CISO 0 0
PWRX PSEI 1,003 2,695
SCL AVA 0 0
SCL AVRN 1,008 1,908
SCL BPAT 1,088 1,257
SCL IPCO 3,208 4,182
SCL PACW 185 304
SCL PGE 544 723
SCL PSEI 4,598 7,067
SRP AZPS 6,728 10,509
SRP CISO 246,623 235,618
SRP PACE 0 0
SRP PNM 994 774
SRP TEPC 5,266 4,209
SRP WALC 9,025 12,415
TEPC AZPS 571 0
TEPC CISO 1,163 905
December TEPC EPE 12,615 8,494
TEPC LADWP 0 0
TEPC PACE 44 9
TEPC PNM 8,168 5,962
TEPC SRP 9,025 6,917
TEPC WALC 104,056 98,352
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TIDC BANC 10,617 10,231
TIDC CISO 5,012 4,760
December TPWR AVA 0 0
TPWR BPAT 2,114 2,758
TPWR NWMT 0 0
TPWR PGE 0 0
TPWR PSEI 9,458 8,675
WALC AZPS 4,263 2,374
WALC CISO 70,714 67,492
WALC LADWP 14,513 15,071
WALC NEVP 21,076 26,763
WALC SRP 3,941 3,393
WALC TEPC 11,910 11,492
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APPENDIX 3: Minimum & Maximum Flexible Ramping Requirements
Month BAA Direction Minimum
requirement
Maximum
requirement
AVA up 0 100
October AVRN up 0 378
AZPS up 0 392
BANC up 0 107
BPAT up 9 445 CISO up 0 2,409
EPE up 0 111
IPCO up 0 225
LADWP up 0 428 NEVP up 0 860
NWMT up 0 114
PACE up 18 661
PACW up 0 131
PGE up 0 219
PNM up 0 219
PSEI up 0 238
PWRX up 0 281
SCL up 0 279
SRP up 0 233
TEPC up 0 186
TIDC up 2 16
TPWR up 0 15
WALC up 0 50
ALL EIM up 0 3,659
AVA down 0 132
AVRN down 0 332
AZPS down 23 395
BANC down 0 158
October BPAT down 0 539
CISO down 0 1,983
EPE down 0 112
IPCO down 0 237
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LADWP down 0 391
NEVP down 0 643
NWMT down 0 156
PACE down 0 855
PACW down 0 200
PGE down 0 278
PNM down 0 282
PSEI down 0 290
PWRX down 32 263
SCL down 1 28
SRP down 0 220
TEPC down 0 179
TIDC down 1 21
TPWR down 0 218
WALC down 0 54
ALL EIM down 0 3,300
AVA up 0 100
November AVRN up 0 378
AZPS up 0 392
BANC up 0 101
BPAT up 0 371 CISO up 0 2,875
EPE up 0 111
IPCO up 0 206
LADWP up 0 428
NEVP up 0 817
NWMT up 0 111
PACE up 0 690
PACW up 0 140
PGE up 0 219
PNM up 0 204
PSEI up 0 281
PWRX up 0 244
SCL up 0 29
SRP up 0 218
TEPC up 0 181
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TIDC up 2 16
TPWR up 0 14
November WALC up 0 50
ALL WEIM up 0 4,314
AVA down 0 132
AVRN down 0 332
AZPS down 0 376
BANC down 0 122
BPAT down 0 515
CISO down 0 1,635
EPE down 0 112
November
IPCO down 0 219
LADWP down 0 338
NEVP down 0 610
NWMT down 0 146
PACE down 0 855
PACW down 0 214
PGE down 0 261
PNM down 0 282
PSEI down 0 290
PWRX down 0 256
SCL down 0 27
SRP down 0 210
TEPC down 0 179
TIDC down 0 17
TPWR down 0 17
WALC down 0 59
ALL EIM down 0 2,353
December
AVA up 0 100
AVRN up 0 378
AZPS up 0 392
BANC up 0 96
BPAT up 0 474
CISO up 48 2,720
EPE up 1 91
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December
December
IPCO up 0 192
LADWP up 0 336
NEVP up 15 669
NWMT up 0 111
PACE up 0 706
PACW up 0 146
PGE up 7 219
PNM up 16 201
PSEI up 34 264
PWRX up 0 329
SCL up 0 34
SRP up 0 242
TEPC up 1 171
TIDC up 0 17
TPWR up 0 22
WALC up 5 53
ALL WEIM up 302 3,584
AVA down 0 132
AVRN down 0 349
AZPS down 0 395
BANC down 6 117
BPAT down 0 484
CISO down 0 2,403
EPE down 0 79
IPCO down 0 219
LADWP down 0 338
NEVP down 0 565
NWMT down 0 148
PACE down 0 812
PACW down 0 214
PGE down 3 297
PNM down 0 241
PSEI down 0 282
PWRX down 0 274
SCL down 0 39
SRP down 0 258
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TEPC down 0 179
TIDC down 0 15
TPWR down 0 25
WALC down 0 59
ALL WEIM down 0 2,844