Economic Planning – 2018

ATC utilizes two methods to determine which projects have the potential for economic benefits:

  1. Stakeholder Input and Analyses
  2. Reliability Project Screening

These methods are described below.

Stakeholder Input and Analyses

In March 2008, Federal Energy Regulatory Commission (FERC) Order 890-A took effect. Order 890-A requires a coordinated, open, and transparent transmission planning process on both a local and regional level. To comply with these requirements, ATC submitted a compliance filing on Order 890-A that provides a timeline of actions to ensure that the economic planning process is both coordinated and open.  ATC has also submitted a compliance filing on Order 1000 that incorporates public policy requirement needs into its economic planning analysis.

Annually, ATC will use a process with consistent timelines that combines stakeholder input, historical data, future line flow forecasts, and updated information on the electric system to identify transmission upgrades for economic evaluation.

Each year:

  • During February, we hold an initial stakeholder meeting to review the market congestion summary and potential fixes and to discuss economic study scenarios, drivers, ranges, and assumptions.
  • By March 1, we work with stakeholders to request and prioritize new/other economic studies and recommend study assumptions.
  • By April 15 – we identify preliminary areas of economic study, study assumptions, and models and solicit further comments from stakeholders, including soliciting stakeholders for public policy requirements that drive transmission needs.
  • By May 15 – we finalize areas of economic study, study assumptions, and models to be used in analysis, including a determination as to why or why not public policy requirements were included in the assumptions.
  • By November 15 – we provide a summary of the results of the economic analyses to our stakeholders.

ATC conducts analyses of the projects identified for study over several months’ time and posts the key results, including the extent to which these savings offset project costs. When the expected benefits of a studied project are high enough to justify its costs, the process of developing it as a formal proposal is begun.

As a result of the 2021 ATC/stakeholder collaborative process, we are performing economic analyses on the following ATC facilities:

Economic Planning Study Areas
  • North Lake Geneva 138-kV Area
  • De Pere 138-kV Area

Studies are performed and results shared with stakeholders over the course of the year. In addition, customers and stakeholders who would like to request specific economic studies can do so if they are willing to pay for the studies and are willing to have the results posted publicly.

Reliability Project Screening

Economic analyses were performed on 14 projects from the 2020 10-Year Assessment project list to determine whether those projects were candidates for acceleration or deferral based on economic considerations. Please refer Table EP-1 for the list of projects screened. The list of 14 projects was based primarily on the availability of redispatch and capital costs of the projects; however, lower cost projects specifically identified by the ATC planning department were also included in the study. Generation interconnection and distribution interconnection projects were not eligible for inclusion in this list. Further, capacitor bank projects were not considered since the voltage benefits provided were not captured by the PROMOD software analysis. Finally, projects with in-service dates prior to 2024 were not considered since development of those projects was too far underway to make scheduling changes. As a result of this screening, none of the projects showed significant economic savings to ATC customers. This may change depending on assumptions or modeling of the system. Economic planning will continue to work with reliability planning, if any further analysis needs to be completed. 

A similar analysis will be performed in the 2022 10-Year Assessment based upon the 2021 Assessment project list. 

Table EP-1

Project #ProjectPlanning Zone
1North Central WI Reliability Project 1
2Harrison Tap – Iola 69-kV (Y-70), Rebuild & OPGW1
3Groenier – Rosholt (ALTE) Tap, 69-kV (Y-71), Partial Rebuild and Rerate 1
4Pine Hy Tap – Pine Hy 69-kV (ASPY31-1), Rebuild & OPGW 2
59 Mile SW STA – Pine River 69-kV (6921/23) Partial Rebuild2
6Cornell Tap – Watson Tap 69-kV (Chandler), Partial Rebuild 2
7Chandler-Delta 69-kV (Delta1 and Escanaba1), Partial Rebuild and OPGW 2
8Pine River - Mich Limestone Loading Dock 69-kV (ESE_6906), Rebuild 2
9Gran Grae SS, Install a second 161/69-kV transformer Replacement 3
10Hillman - Darlington 138kV (X-14/X-101), Rebuild 3
11South Fond du Lac - Spring Brook 69-kV (Y-133), Partial rebuild 3
12South Beaver Dam - Hubbard, (Y-134), 69-kV Rebuild & OPGW 3
13South Beaver Dam – North Beaver Dam, 69-kV (Y-59) Line Rebuild 3
14Waupun - South Fond du Lac 69-kV, (Y-25) Partial Rebuild 4
List of 10-Year Assessment 2021 Economically Screened Projects

2019 Meetings, Materials and Announcements

May 2, 2019 Stakeholder Meeting

ATC is planning to host a customer/stakeholder meeting on May 2, 2019, scheduled from 9:00 a.m. to 11:00 a.m. (CDT), via web and teleconference. ATC will discuss the 2019 10-Year Assessment Preliminary Solutions and the 2019 ATC Economic Planning Study Areas and Assumptions, as indicated in the agenda. The following materials will be discussed at this meeting:

Please indicate your participation plans to Curtis Roe at croe@atcllc.com by April 30.

Any comments or inquiries contact Curtis Roe at croe@atcllc.com.

April 15, 2019 Economic Planning Study Update

As a continuation of our 2019 Economic Planning Process, ATC has posted the following files for your review and feedback. ATC is seeking feedback from stakeholders regarding the study information posted below.

MTEP19 Futures Summary

This document details the preliminary drivers and assumptions that ATC is planning to utilize for the 2019 PROMOD development and analysis.  Theses are the same futures that will be used my MISO, the Regional Transmission Operator, in its MTEP19 Regional Transmission Planning Study.

2019 ATC Economic Projects Study Areas

This document details the several potential study areas ATC is considering for economic analysis as part of the 2019 Economic Planning process.

Public Policy Requirements

In addition to potential studies area linked to market congestion, ATC is also seeking feedback in areas where Public Policy Requirements may drive transmission needs. Public Policy Requirements are enacted statutes (i.e., passed by the legislature and signed by the executive) and regulations promulgated by a relevant jurisdiction, whether within a state or at the federal level, including duly enacted laws or regulations passed by a local governmental entity, such as a municipal or county government.  Stakeholders are encouraged to provide ATC with Public Policy Requirements.  ATC utilizes transmission needs driven by Public Policy Requirements in its assumptions when performing economic analysis of study areas.  The transmission needs driven by Public Policy Requirements that will be included in ATC’s finalized assumptions will be posted prior to May 15th.

We look forward to your involvement in this process and appreciate your input and feedback as we proceed with our 2015 TYA and Economic Planning process.  We will continue to work with you and plan to finalize our economic analysis plan and assumptions by May 15, 2019.

Any comments or inquiries related to these studies can be submitted to Dale Burmester, Manager – Economic Planning, at dburmester@atcllc.com.

February 28, 2019 Stakeholder Meeting

ATC is planning to host a customer and stakeholder meeting on February 28, 2019, scheduled from 9:00 a.m. to 11:30 a.m. (CST), via web and teleconference. ATC will discuss the 2019 10-Year Assessment Preliminary Needs, give an update on the 2018 ATC Economic Planning Study, and kickoff the 2019 ATC Economic Planning Study, as indicated in the agenda.

The following materials will be discussed at this meeting:

Meeting Agenda

2019 10-Year Assessment Preliminary Needs

2018 ATC Economic Planning Study Update / 2019 ATC Economic Planning Study Kickoff

Please indicate your participation plans to Curtis Roe at croe@atcllc.com by February 26.

January 8, 2019 Updates to ATC 10-Year Assessment Asset Renewal Project Lists

As discussed in previous ATC customer and stakeholder meetings, ATC is continuing to implement a process to provide Network and Asset Renewal project updates. These updates support consistency between the 2018 10-Year Assessment project lists and the MTEP18 project lists. The update found at the link below contains a project with changes compared to the lists ATC published in the 2018 10-Year Assessment, Summary Report, Zone 2, Notable Projects.

The Mackinac – McGulpin 138 kV submarine cables (9901, 9903), replacement project is updated to “Proposed Project” status. ATC will continue to solicit feedback on this process in the customer and stakeholder meetings. If you have any questions regarding the process or the list please contact Robert Morton, Manager Zone Planning Group, at rmorton@atcllc.com.

Updates to 2018 10-Year Assessment Asset Renewal Project Lists