October 15, 2015

Summarize PPI-specific protocols under ER15-2364

Review 2016 Projections

Explain Ameren IL Company Joint Zone Rate structure
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
July 31, 2015 – FERC filing to revise MISO Tariff
sheets for Attachments O, GG and MM
• ER15-2364
• Establishes company-specific Attachment O-PPI which
calculates a forward-looking revenue requirement in the
Ameren IL Zone
• Institutes the transparency and true-up mechanism
Protocols for Attachments O and GG
• Includes PPI in Attachment MM provisions
• Effective Date: October 1st for Protocols and January 1st
for revenue requirement

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October 7, 2015 – FERC Order of Approval
Date/Deadline
Activity
October 1st
Deadline to submit upcoming year’s Annual ATRR Projection
October 31st
Deadline to hold Annual Projected Rate Meeting to discuss
projected ATRR
November 1st
Deadline for informational meeting for MISO Owners with Project
costs being shared regionally*
December 1st
Deadline for Interested Parties to submit information requests
January 10th
Deadline for PPI to respond to information requests
January 31st
Deadline for Interested Parties to submit Informal Challenges
February 28th
Deadline for PPI to respond to Informal Challenges
March 15th
Deadline for PPI submit Informational Filing to FERC
April 15th
Deadline for Interested Parties to file Formal Challenge at FERC
June 1st
Deadline to publish Annual Update with True-Up
September 1st
Deadline for Annual Update open meeting
* PPI has not constructed a Project which is regionally
cost-shared.
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https://www.misoenergy.org/Markets
Operations/TransmissionSettlements/
Pages/TransmissionOwnerRateData.as
px
PPI Contact for
informational requests or
Informal Challenges:
Alisha Anker
[email protected]
(217) 331-5621

FERC-approved Rate Formulae specific to PPI

Timing of rate impact now consistent across the
Ameren IL Zone
• PPI uses the Non-Levelized template utilizing RUS/CFC Form
12 data
Rate-making formula for Plant in Service:
Net Revenue
Requirement
Return on Rate
=
Base
6
=
O&M +
Depreciation + Taxes +
( Net Plant in Service
Total Working
+
Capital
+
Return on
Rate Base
-
Revenue
Credits
Land Held for
x
Future Use )
Weighted
Rate of
Return
Allocators:
TP = Percentage of Transmission Plant in ISO Rates
TE = Percentage of Transmission Expenses in ISO Rates (same as TP Allocator for PPI)
W/S = Percentage of Transmission-related Wages/Salaries to Total Wages/Salaries
GP = Percentage of Transmission-related Gross Plant
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8




9
Upgrade Alsey Sub to accommodate 6-breaker ring bus
138kV Alsey–Pittsfield
138/69kV step-down at Pittsfield
Upgrade Winchester-Pittsfield 69kV
Source: MTEP14 Central SPM Presentation
June 17, 2014
10
11

Net Revenue Requirements for each Zonal Party are
aggregated
• Σ Rev Reqt’s = Σ (PPI + AIC + ATXI)

Σ Rev Reqt’s / Avg 12-mo Demand = $/kW-mo NITS rate

Revenue allocated pursuant to JPZ Agreement* between
the Parties
• Revenues allocated based on share of:
 Annual Rev Reqt for Sch 9 service (PPI share = 3.3%)
 Adjusted Gross Book Value for PTP service (Sch 7 & 8) within and
into/out of Zone (PPI share = 2.37%)

PPI Rev Requirement has no impact on Sch 26 or Sch 26A
*Joint Pricing Zone Revenue Allocation Agreement
Docket No. ER14-65-000
Effective Date: June 1, 2013
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