Integrating Southwest Power Pool Wind to Southeast Electricity ...

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of the generation while being limited only by hurdle rates given that losses were removed in the previous step. Removing Losses small change in generation export & economic flows. Unconstraining Transmission big change in generation export Figure 2-1 Comparison of Average Net Flow Out of Each Region for 7 and 14 GW Cases Conclusions In order to effectively investigate the scheduling/balancing challenges of utilizing SPP wind generation to meet a 20% RES across the SPP and SERC footprint and to evaluate the benefits of coordination between regions in meeting this challenge, the modeled transmission system would either have to be expanded or “unconstrained” to allow the new wind generation to be delivered. Developing a reasonable transmission expansion plan that was acceptable to all stakeholders was outside the scope of the project. Test cases simulated to better understand the impacts of removing transmission system losses and thermal constraints show that the primary impact is from removing the constraints. Since the study is not evaluating the capital costs of transmission that would be needed to support wind transfers from SPP to SERC, the gross “unconstrained” assumption is an approximation of the assumption that transmission will exist to support wind transfers in order for the wind to be developed for export. While certainly not a perfect assumption, the project team believes that it does allow for an assessment of the benefits of coordination for scheduling/balancing with some appropriate caveats. As such, all of the High Wind Transfer cases that are described in detail in the remainder of this report are simulated using the UPLAN Transportation mode solution method where losses and thermal constraints are not respected. As with all of the results of the project, the specific quantitative results obtained from these simulations are less important than the insights that are obtained by comparison between cases as specific scenario parameters are changed. Where appropriate in the presentation of results, it is noted how the “unconstrained” transmission 2-4
assumption is affecting specific directional differences between cases. As is noted in the Recommended Follow-on Work section at the end of this report, the project team believes that an evaluation utilizing the DC-OPF solution mode with an actual transmission network planned for the wind transfers would be valuable to confirm the conclusions developed from the simplifying assumptions used in this study. 2-5
Page 1: DOE: Integrating Southwest Power Po
Page 4 and 5: DISCLAIMER OF WARRANTIES AND LIMITA
Page 6 and 7: EXECUTIVE SUMMARY This DOE-funded p
Page 8 and 9: Summary of average regulation requi
Page 10 and 11: generation in the 2022 Non-RES case
Page 12 and 13: System and Cost Impacts of High Win
Page 14 and 15: Figure 6-6: Individual Coal Capacit
Page 17 and 18: 1 INTRODUCTION AND BACKGROUND Proje
Page 19 and 20: 2 REPRESENTATION OF TRANSMISSION NE
Page 21: participants the possibility of a r
Page 26 and 27: Table 3-1 Wind energy targets for e
Page 28 and 29: site selection could have congregat
Page 30 and 31: Wind Production (MW) Wind Productio
Page 32 and 33: Wind Delivery (MW) 12000 10000 8000
Page 34 and 35: 1. Regulation is required to cover
Page 36 and 37: The polynomial shown in Equation 3
Page 38 and 39: Regulation (MW) Figure 3-12 Summary
Page 41 and 42: 4 HIGH WIND TRANSFER SCENARIO DECRI
Page 43 and 44: 5 HIGH WIND TRANSFER CASE RESULTS T
Page 45 and 46: decreasing smaller amounts. It is i
Page 47 and 48: Coal 3.6 3.6 3.6 3.6 3.6 GasOil 0.7
Page 49 and 50: Figure 5-3 Average hourly generatio
Page 51 and 52: Figure 5-6: Average hourly generati
Page 53 and 54: SBA. More details on these types of
Page 55 and 56: Figure 5-8: Total production costs
Page 57 and 58: The flow chart shown in Figure 5-9
Page 59 and 60: Table 5-10 shows the difference in
Page 61 and 62: more likely to be turned off during
Page 63 and 64: Figure 5-13: Average Regulation up
Page 65 and 66: Figure 5-16: Average Spinning reser
Page 67 and 68: Figure 5-18: SBA Capacity Factors b
Page 69 and 70: Figure 5-20: Capacity Factors for S
Page 71 and 72: Unit Startups Changing the balancin
Page 73 and 74:
Gas Price Sensitivity Case Results
Page 75 and 76:
6 CONCLUSIONS AND RECOMMENDED NEXT
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generation characteristics across r
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overstates the ability of the syste
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Figure 6-2: Individual coal capacit
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in the 22% to 50% in Scenario 2. Th
Page 86 and 87:
Figure 6-8: individual coal capacit
Page 88 and 89:
able to carry some of the reserve t
Page 90:
Export Control Restrictions Access
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