1. How the Missouri River is Operated - WAPA’s Role - Mid-West Electric Consumer Association Annual Meeting December 11, 2018 | Denver, CO
Lori L. Frisk
VP, Power Marketing
for the Upper Great Plains Region
Western Area Power Administration

2. How the River is Operated
National Weather Service
US Army Corp of Engineers (COE)
Bureau of Reclamation (BOR)
Western Area Power Administration (WAPA)
What WAPA Considers
Flexibility within the Day

3. Pick-Sloan Missouri Basin Program – - Eastern Division Where We Get the Power
Congressionally Authorized
Project Purposes:
Flood Control
Navigation
Irrigation
M&I Water Supply
Hydropower
Recreation
Fish & Wildlife (including endangered species)

4. UGP Firm Power Customers

5. UGP Summer Load

6. UGP Winter Load

7. BOR and COE Information to UGP Generation Operation Dispatch
Proposed plant and unit outages over 10 days in advance
Weather forecasts
Staffing at the plants
WAPA reviews to accommodate load
Reliability Coordinators approval before outage is confirmed
2 days in advance
Outages by plant
Hourly unit limitations based on scheduled outages
2–4 hrs. in advance of outage the plants call
WAPA swaps load to different units at the same plant or open the spillway which required two people on staff at the plant

8. BOR and COE Information to UGP Marketing
2 days in advance
Hydro release schedule (MWhs)
By plant
Outages
Hourly unit limitations

9. UGP Marketing Considerations On the West
Generation release schedules
Fort Peck (Units 1, 2 + 3)
Canyon Ferry
Yellowtail
Unit outages
Forecasted weather
Miles City Tie availability
Historical UGP loads
Forecasted UGP loads
West market prices and counterparty offers
SPP market prices

10. UGP Marketing Considerations in the Southwest Power Pool (SPP)
Forecasted weather
Forecasted market prices
Forecasted load profile

11. UGP Marketing Locations in the Southwest Power Pool (SPP)
SPP SETTLEMENT LOCATIONS WAPA Generation
WAUE_FTPECK.1_3 (East or West)
WAUE_FTPECK.4_5
WAUE_GARRISON.1_3 – 230KV
WAUE_GARRISON.4_5 – 115KV
WAUE.OAHE.1 ) KV
WAUE.OAHE.2_7 – 230KV
WAUE.BIGBEND.1_8
WAUE.FTRANDALL.1_2 – 115KV
WAUT.LRTRANDALL.3_8 – 230KV
WAUE.GAVINSPT.1_3
WAUE.MILESCITY

12. UGP Marketing Scheduling Generation
COE hydro release schedule by plant
Spread the release schedule over all 24 hours of the day for each plant
Profile it to match forecasted SPP load, SPP markets prices, our load, etc.
Then spread the hourly amounts to the available units

13. UGP Marketing Scheduling Generation
Example:
Fort Peck

14. UGP Marketing Generation Rough Zones
Ranges where the units are not scheduled

15. Day-Ahead Schedule Flexibility On the West
Review COE unit limits for minimum and maximum operation levels (Rough Zone)
Example: Fort Peck Units 1 and 3 (45 MW units) each need to be operated below 16 MWs or about 28 MWs
Voltage concerns or equipment wear and tear
Some MWs need to be left unscheduled so the Balancing Authority can move the units for regulation or voltage issues

16. Day-Ahead Schedule Flexibility On the East in SPP
When we have excess generation we schedule higher generation amounts when SPP Market prices are higher to match SPPs load forecast

17. Day-Ahead Schedule Flexibility On the East in SPP
When generation is average we schedule generation to match the UGP load

18. Day-Ahead Schedule Flexibility On the East in SPP
If generation is significantly lower than our load forecast we shape the output to match the load profile in the peak hours when SPP market prices are higher

19. Real-Time Marketing Flexibility On the West
UGP has staff that monitors the markets on a real- time basis 24 hours per day. They react to:
Unscheduled outages
Load coming in higher than forecasted
Buyers for excess generation
COE can call with water changes throughout the day
Miles City Tie going out of service
If there are buyers for our our excess generation
If no buyers for our surplus then we need to back the generation down to match our load

20. Real-Time Marketing Flexibility In SPP
UGP has staff that monitors the markets on a real- time basis 24 hours per day. They react to:
Unscheduled outages
COE can call with water changes throughout the day

21. Generation Dispatch Flexibility
Monitor plant output for:
Operational restrictions
Environmental reasons
Unit availability
System outages
Transmission service curtailments directed from the Reliability Coordinators (SPP and WECC)
Fluctuate output on the West for regulation and reserves

22. West Generation

23. East Generation

24. Thank you!
Lori Frisk
VP of Power Marketing for the Upper Great Plains Regions