Federal Columbia River Power System Operations Planning.
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Transcript of Federal Columbia River Power System Operations Planning.
Federal Columbia River Power System Operations Planning
2
The FCRPS• Partnership (Army Corps of Engineers, Bureau of Reclamation,
Bonneville Power Administration)– Low cost, reliable power & effective stewardship– Generates power worth $3-4 billion annually to the people of the Pacific Northwest– Through direct funding agreements, the program spends over $300 million annually on O&M
programs
• The FCRPS includes:– 31 hydroelectric projects (21 COE/10 BOR)– 209 turbine-generating units
• Capacity and Production:– Over 22,000 MW of nameplate generation – 8,700 aMW of energy production with average water– 89% of the FCRPS generating capacity is in the “Big 10” dispatchable projects
• Hydropower Facts:– 65% of the region’s power comes from hydro– 40% of all U.S. hydropower is generated on the Columbia and Snake Rivers
3
Operational Objectives• Multiple purposes & interests of the FCRPS
– Flood Control– Irrigation– Navigation– Recreation– Operations for listed and unlisted fish
species (BiOps)– Control Area Services– Power
• Power production is driven by need to move water to meet the above objectives.
4
Albeni Falls Dam• 20-25% of GCL
average inflow• 1’ of forebay = 1’ of
forebay at GCL• 1 unit of water
produces 2 MW at site
• 1 unit of water produces up to 60 MW for D/S Fed projects
Columbia Basin
More than a factor of 2 variability from driest to wettest year Drives operational objectives.
Annual Runoff of Columbia River
Storage capacity in the Columbia Basin is about 30% of the total annual
runoff
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6
2300.0
2320.0
2340.0
2360.0
2380.0
2400.0
2420.0
2440.0
2460.0
2480.0
O N D J F M A M J J A S
Elev
ation
(ft)
Libby Reservoir
Dry
Wet
3480.0
3490.0
3500.0
3510.0
3520.0
3530.0
3540.0
3550.0
3560.0
3570.0
O N D J F M A M J J A S
Elev
ation
(ft)
Hungry Horse Reservoir
Dry
Wet
7
1440.0
1460.0
1480.0
1500.0
1520.0
1540.0
1560.0
1580.0
1600.0
1620.0
O N D J F M A M J J A S
Elev
ation
(ft)
Dworshak Reservoir
Dry
Wet
1210.0
1220.0
1230.0
1240.0
1250.0
1260.0
1270.0
1280.0
1290.0
1300.0
O N D J F M A M J J A S
Elev
ation
(ft)
Grand Coulee Reservoir
Dry
Wet
2044.0
2046.0
2048.0
2050.0
2052.0
2054.0
2056.0
2058.0
2060.0
2062.0
2064.0
O N D J F M A M J J A S
Elev
ation
(ft)
Albeni Falls Reservoir
Dry
Wet
8
-100.0
-80.0
-60.0
-40.0
-20.0
0.0
O N D J F M A M J J A S
Feet
Draft from Normal Full Pool (Avg)
LIB
HGH
GCL
DWR
ALF
Lake Pend Oreille Pre and Post Dam
10
FCRPS Annual Operations
Fall• Kokanee Spawning minimum elevation at Coulee, Fall Chinook spawning
maximum flow at Brownlee• Vernita Bar Fall Chinook spawning maximum daytime flow mid-October
through November then maintain minimum protection flow through May at Priest Rapids
• Bonneville Chum operation min/max tailwater elevation for spawning Nov/Dec with protection flows through March
Winter• System draft for winter loads, first snow survey and volume forecast to
determine Flood Risk Elevations, and Variable Draft Limits• Continue to maintain Bonneville minimum flow for chum salmon• Maintain Priest Minimum flow for Vernita Bar
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FCRPS Operations (continued)
Spring• Target reaching April 10 BiOp elevations at storage projects followed by
April 30, flood risk draft • Begin releasing water for BiOp flow requirements at McNary and Lower
Granite• Begin fish spill at Lower Columbia and Lower Snake projects• Begin White sturgeon flows in May–June at Libby• Target storage project refill by about June 30• Meet Bull Trout flows at Libby and Hungry Horse in May–September
Summer• Continue drafting to provide summer flows per BiOp • Continue fish spill on Lower Columbia and Snake River per BiOp• Operate Dworshak for downstream temperature control and Nez Perce
Agreement
Other factors influencing system operations
• Water Quality Standards• Requests for special operations
• Treaty fishing• Fish habitat restoration projects• Recreation Events (fishing derbies, boat
races, etc.)• Special navigation requests • Dam/reservoir modifications• Outages
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Power PlanningGeneration = Load
Generation must equal Load every second• What is generation (supply)? • What is load (demand)?• Are they equal? --rarely during planning• How much can we adjust supply? --limited
– Flexibility • Operational objectives, constraints, and special operations• How much can we store/release (adjust generation) and not
violate the items above?
• How much can we adjust demand? – Buy and sell electricity
Loads Generation
Loads = Generation (or close)
Loads Generation
Loads < Generation
Loads Generation
Loads > Generation
Ideal
No buy/sell actions
Surplus
Sell
Deficit
Buy
Loads & Generation
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• Short-Term/Mid-Term Planning (next two weeks – one year) • Coordinate special operations with Corps/BOR• Coordinate outage planning with Corps /BOR• Providing inventory assessment (capacity and energy) for
marketing • Implement Treaty via weekly Treaty requests with BCH for flow at
boarder• Real Time (24x7 operation)
• Send generation requests to projects (matching generation to load)
• Integrate hourly/daily marketing & wind with hydraulic objectives• Manage hourly water operation of FCRPS (spill, tailwater, forebay,
ramp rates, etc.)
Planning Horizons
• Load (demand) • Temperature variation affects demand• Economic trends affect demand• Technology changes affect demand (server farms, electric vehicles)
• Market Depth
• Prices (MW & natural gas)• Thermal unit availability• Wind generation• Transmission availability
• Streamflow (fuel)• Water supply forecast• Daily streamflows
Planning Uncertainty
Endangered Species Protection
Irrigation
Flood Risk Management Navigation
Recreation
Hydropower
Fish and Wildlife
Municipal and Industrial Water Supply
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Questions?