1 dale osborn midwest iso february 27, 2008 2008 wisconsin renewable energy summit transmission...
TRANSCRIPT
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Dale Osborn
Midwest ISO
February 27, 2008
2008 Wisconsin Renewable Energy Summit
Transmission Expansion Opportunities with Wind Energy
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What has MISO been doing
Midwest ISO Transmission Expansion Plan 07 ( MTEP 07)
MTEP 08
The presentation will discuss mainly the MTEP 08 Renewable Future energy studies with the MISO-PJM transmission expansion.
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Types of Studies in MTEP Generation and Interconnection study results
are incorporated into MTEP
Reliability ( capacity) studies
• Power flow and stability
• Loss of load probability
Energy studies- this presentation
Sub-regional coordination studies
• Generator outlet for wind
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What is MISO doing now Generation Interconnection and
Transmission Service processing- rolled into MTEP
MTEP 08 reliability studies
MTEP 09 energy studies
Joint Coordinated System Plan
• Reliability
• Energy
• Wind Integration
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MISO PJMJoint and CommonMarket
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Joint Coordinated System Plan Participants
New EnglandNew York
MISO+MAPP
Entergy
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Why do energy studies Reliability studies show little need for joint
RTO transmission expansion.
Energy studies show that the Energy Markets may provide economic benefits that could support transmission expansion.
Wind is 85% an energy only resource and 15% capacity resource. Wind transmission evaluation
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Why wind studies MISO has 10 times more potential than it will
need under a 20% wind scenario
Identify transmission for wind mandates
Reduce the cost to customers
Economic development for the region
• Sell wind Renewable Energy Certificates to the east coast utilities that do not have wind plus available energy
Improve reliable operation of base load units
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Potential Market RPS little windHigh prices
Potential Generation
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40 Meter wind 100 Meter wind
Orange is best, white worst
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MISO 15,000 Mw 2025Total EI 65,000 Mw 2025
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Correlation OfWind Output To System Load Duration
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
1 731 1461 2191 2921 3651 4381 5111 5841 6571
Hours
Per
Un
it
PerUnit Wind Power
PerUnit Load
Poly. (PerUnit Wind Power)
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Congestion Congestion is due to the inefficient use of
generation due to transmission limitations
Higher cost generators are run when lower cost generation cannot be delivered to an area
Considerable improvement in Wisconsin since the start of the Energy Market due to ATC adding transmission.
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Map-2: MISO West Region
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Transmission Expansion for Renewable Future year 2021
Black dotted - 800 kV HVDCBlue dotted - 765 kV ACYellow dotted - 345 kV AC
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Generation Difference:Full Copper Sheet and Full Constrained Cases
Positive: Generation IncreaseNegative: Generation Decrease
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6,400 MW
3,000 MW
Remaining Transmission
Capacity to Achieve Potential
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Transmission and Substation Costs per Mw-mile by Transmission Voltage And Type of Construction
0
400
800
1,200
1,600
2,000
2,400
2,800
3,200
3,600
4,000
345 kVSteel
WoodedAreas
2-345kkVon Steel
500 kV 765 kV 765 HSIL 800 kV GIL 1200 mile-800kVHVDC
$/M
w-M
ile
Lowest cost options
600 1200 Mw 1300 mw 2600 5400 5300 6400Target typical planned loading Mw, use economics to choose voltage
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Full Constrained Case Annual Load Weighted LMP
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Full Constrained Casewith Annual Gen Weighted LMP
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Potential Benefits from Expansion $M/yr
MISO $3,642
PJM $2,027
MAPP $21
NYISO $96
SPP $71
SE $652 IMO $418
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Benefit/cost 1.10 for the 20% case-
$600M/yr( 2021$) after paying for the lines
Line cost proposed to be covered by LMP market for transmission similar to losses today
1.18 for the mandate case
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Summary The Midwest ISO has ongoing studies of which the
Renewable 20% Wind Energy Future is one option.
The Western Sub-regional Planning Meeting studies are to determine the midrange transmission to deliver wind to the loads.
Transmission to high cost areas may be able to pay for itself through energy sales with the present wind mandates and for a 20% energy mandate
Transmission expansion for wind based on the energy markets benefits within MISO is very limited.
