1. Evolving Economic Dispatch in SPP
Midwest Electric Consumers Association
Jon Sunneberg - NPPD
December 13, 2017

3. SPP Generation Capacity
Coincident Peak Load: 50,622 MW
Minimum Load: 20,540 MW
SPP forecasts minimal load growth

4. SPP Wind Development SPP is the “Saudi Arabia” of wind:
60,000-90,000 MW potential
More wind energy than SPP uses during peak demand
17,550 MW capacity of in-service wind
43,839 MW wind in all stages of development
Includes 36,790 MW in the Generation Interconnection queue and 7,049 MW of executed Interconnection Agreements
SPP Forecast show $2 - $3/MWh reduction in average LMP (Locational Margin Price) in 2021 Modeling
The SPP region is rich in wind resources. There is more potential wind energy in the footprint than SPP could absorb.
NOTE: We do not have a way to track wind that doesn't or hasn't gone through the SPP planning process - such as wind that predates different stages of our generation interconnection process and wind that is not SPP-jurisdictional (including distribution wind).

5. SPP Generation Interconnection Requests (Pending)
The SPP region is rich in wind resources. There is more potential wind energy in the footprint than SPP could absorb.
NOTE: We do not have a way to track wind that doesn't or hasn't gone through the SPP planning process - such as wind that predates different stages of our generation interconnection process and wind that is not SPP-jurisdictional (including distribution wind).

6. SPP Market Pricing Impact (Is it only Wind?)
Negative Energy prices during low overnight demand and high wind output

7. SPP Dispatch Considerations

8. SPP Market Inefficacies
Self committed generation
Self Dispatched Coal
Fuel Contract concerns
Market Design limitations related to Start Up timing and cost recovery
Nuclear
Only 2 nuclear plants in SPP
Non-dispatchable wind (NDVER)
6,000 MW NDVER
Typically older installations
All new wind must be dispatchable

9. NPPD Dispatch Concerns
Self Committed Generation
Coal - Mix of Market and Self Dispatch
Sheldon Units – 26 individual starts in 2017
Cycling and ramping causes additional wear and tear on the units
Cooper Nuclear Station – 800 MW
Non Dispatchable Wind
SPP values flexibility in dispatch model
Flexibility has a cost (ramping, cycling)
Ensuring accurate information to SPP (cost, timing)

10. Proposed Market Enhancements
Wind
Convert NDVER generation to Dispatchable
Overall market benefit, but there is cost to utilities
Baseload Generation
Multi Day Market view
Place a value on reliability benefits provided
Transmission infrastructure
Ensure a tie between generation and transmission improvement processes
Need to reduce transmission congestion

11. Questions?