Apr 29, 2016 - Submitter Role: Public. Submission ... New natural gas WILL NOT put us on track to ... CA solar? Source:
DOCKETED Docket Number: 15-RETI-02 Project Title: Renewable Energy Transmission Initiative 2.0 TN #: 211309 Document Title: Presentation - Achieving a More Flexible Power System by Hal Harvey, 52-16 Description: N/A Filer: Misa Milliron Organization: America's Power Plan and Energy Innovation Policy & Technology LLC Submitter Role: Public Submission 4/29/2016 2:44:06 PM Date: Docketed Date: 4/29/2016
ACHIEVING A MORE FLEXIBLE POWER SYSTEM HAL HARVEY
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RETI 2.0 IN CONTEXT
40% GHG reduction by 2030… On the path to 80% GHG reduction by 2050
Source: Low-Carbon Grid Study: Phase II Results, 2016 2
WHY A FLEXIBLE GRID? Helps achieve 2050 emissions goal (beyond 50% renewables) Addresses two kinds of variability created by renewables: Known variability – daily or seasonal trends are often predictable
Unknown variability (short-term) – relatively small, even under high shares of wind and solar
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A SUITE OF FLEXIBILITY OPTIONS High Cost
Flexibility Resource Supply Curve
Low Cost
Increasing Need for Grid Flexibility
Graphic adapted from: Paul Denholm et al., 4 “The Role of Energy Storage with Renewable Electricity Generation” (NREL, January 2010).
IMPROVED OPERATIONS
Expand the EIM
Flexible Imports
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IMPROVED OPERATIONS E XPAND T HE E I M
Additional regions
Additional products
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IMPROVED OPERATIONS FLE XI BLE I MP O R T S
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DEMAND RESPONSE TWO KINDS OF DEMAND RESPONSE Dispatchable
Price-responsive
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DEMAND RESPONSE
GWs of latent DR
opportunities across the economy
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GRID INFRASTRUCTURE TRANSMISSION Regional optimization Geographic diversity Technological diversity
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GRID INFRASTRUCTURE R E G I O NAL O P T I MI Z AT I O N
Managing unpredictable variations
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GRID INFRASTRUCTURE G E O G R AP HI C DI VE R SI T Y
Managing predictable variations
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M. Jacobson, M. Delucchi. “A Path to Sustainable Energy by 2030.” Scientific American. 2009
GRID INFRASTRUCTURE G E O G R AP HI C DI VE R SI T Y
WY & CA Wind
Example: complementary wind resources in the region
Source: J. Naughton, Wind Diversity Enhancement of Wyoming, California Wind Energy Projects: Phase 2, Univ. of Wyoming, Wind Energy Research Center, July 2015
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GRID INFRASTRUCTURE T E CHNO LO G I CAL DI VE R SI T Y Diverse Resource Mix
High Solar Case
Source: Low-Carbon Grid Study: Phase II Results, 2016
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FAST RAMPING SUPPLY IMPROVE FOSSIL FLEXIBILITY
Only use existing capacity Use only for power, not energy
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FAST RAMPING SUPPLY New natural gas WILL NOT put us on track to meeting 2050 GHG goals
16 Duke Energy (Flickr)
ENERGY STORAGE
1.3 GW storage mandate drives deployment up, costs down
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CURTAILMENT
T HE MO ST E XP E NSI VE O P T I O N
Curtailment (%)
Flexibility is key to reducing curtailment
10 9 8 7 6 5 4 3 2 1 0
Enhanced flexibility
BaselineTarget High Solar
Conventional flexibility
Baseline Target High Solar
Source: G. Brinkman, California Low-Carbon Grid Study,18 Presentation to RETI 2.0 Stakeholder Meeting, April 18, 2016.
CURTAILMENT … O R LO NG -T E RM E LAST I CI T Y ? Time of use rates
Desalinization
Battery Electric Vehicles Data Processing Air Gases
Excess energy can be a competitive advantage for California
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PUTTING IT ALL TOGETHER These resources provide a vast suite of options, yielding power that is:
RELIABLE
CLEAN
AFFORDABLE
RETI 2.0 scope should be REGIONAL to capture the full range of cost-effective flexibility options 20
OPPORTUNITY #1
E XP O R T I NG SO LAR E AST WAR D
New market for excess CA solar?
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Source: Arizona Public Service 2014 IRP
OPPORTUNITY #2
TAK E ADVANTAG E O F COAL R E T I R E ME NT S
Add clean resources where transmission lines already exist
330 MW
Coal Plant Retirement Incremental wind resource Incremental solar resource
770 MW
684 MW
Source: WECC 2012 Coal Retirements Study
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OPPORTUNITY #3
CO NNE CT NE G AT I VE LY CO R R E LAT E D R E SO UR CE S
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Source: D. Corbus et al., California-Wyoming Grid Integration Study: Phase 1—Economic Analysis, NREL, March 2014.
OPPORTUNITY #4
I NCR E ASE I NT E G R AT I O N… I NCR E ASE R E SI LI E NCE
Southwest Intertie Project (SWIP) Completes transmission loop Reduces region-wide congestion
Southwest solar → Northwest
Wyoming/Montana wind → Southwest
(solid red lines are illustrative)
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@USPOWERPLAN @ E N E R G Y I N N O V L LC
W W W. A M E R I C A S P O W E R P L A N .C O M W W W. E N E R G Y I N N O VAT I O N .O R G
THANK YOU 25
