Integrating Southwest Power Pool Wind to Southeast Electricity ...

3. Development of SCUC/SCED model of the SPP-SERC footprint for the year 2022 with
sufficient installed wind capacity in SPP (approximately 48 GW) for both SPP and the
participating SERC BAs to meet an RES of 20% energy. This model is referred to as the
“High-Wind Transfer” model with several different scenarios represented. The
development of the High-Wind Transfer model not only included identification and
allocation of SPP wind to individual SERC BAs, but also included the evaluation of
various methods to allow the model to export the SPP wind to SERC without developing
an actual transmission plan to support the transfers.
4. Analysis of hourly-resolution simulation results of several different High-Wind Transfer
model scenarios for the year 2022 to determine balancing costs and potential benefits of
collaboration among SPP and SERC BAs to provide the required balancing.
Report Structure and Relation to Previous Project Reports
This report summarizes the High-Wind Transfer model development (analysis task #3 above)
and associated simulation results from the model (analysis task #4 above). The High Wind
Transfer model development activities covered include:
• Chapter 2 summarizes the evaluation of the impacts of limited transmission transfer
capability in the 2022 model on export of high levels of wind energy from SPP to SERC,
including evaluation of modeling/simulation options that allow analysis of the balancing
impacts of the wind despite limited transfer capability.
• Chapter 3 summarizes the allocation of SPP wind plants’ energy to SERC BAs,
calculation of associated reserve requirements for each BA based on allocated wind plant
output over time, and analysis of wind ramping events experienced for each BA.
• Chapter 4 summarizes the High Wind Transfer scenarios/assumptions simulated in order
to evaluate the impacts/benefits of coordinated scheduling/balancing among SPP and
SERC BAs to address wind variability and uncertainty.
It should be noted that the High Wind Transfer SCUC/SCED model summarized in this report is
based on the Non-RES model that is summarized in the separate report titled “Task 1
Deliverable: Non-RES Case Model Development and Analysis Framework” (subsequently
referenced as the Task 1 Report). Further, the simulation results for the Non-RES model are
summarized in a third report titled “Task 3 Deliverable: Non-RES Case Results”. While an
attempt is made to restate basic model assumptions that impact the results identified for the High
Wind Transfer scenarios, the Task 1 and Task 3 reports should be reviewed to find additional
model information.
It should be further noted that the High Wind Transfer SCUC/SCED models and associated
simulation results presented in this report are to be used to compare different methods of
balancing high penetrations of wind being moved from SPP to the relevant SERC areas. The
model’s purpose is not to give absolute answers on the operation of such systems with high
amounts of wind, but rather to be used as a tool to compare strategies, based on certain input
assumptions on wind, demand, unit parameters, reserve provision, etc. Therefore, the absolute
answers are meaningful only within the specific context of a particular study and can be
misleading if applied outside the context of a given study
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