Use Cases and Value Drivers of Storage for Distribution Utilities 2 nd International Conference on Large‐Scale Grid Integration of Renewable Energy in India Vibhu Kaushik, Director – Grid Technology & Modernization Southern California Edison September 6, 2019 1
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Use Cases and Value Drivers of Storage for Distribution Utilities
2nd International Conference on Large‐Scale Grid Integration of Renewable Energy in India
Vibhu Kaushik, Director – Grid Technology & Modernization Southern California EdisonSeptember 6, 2019
Goals To Improve• California set a goal to reduce emissions 40% below 1990 levels by
2030, and 80% by 2050.• SB 100 passed mandating 100% carbon free electric grid by 2045
If we want to get to zero emissions, eventually we have to replace many of the things we rely on today that require combustion.
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Emissions contributors
• The largest contributor is transportation, followed by the electric sector.
Industrial, and commercial and residential sectors trail not too far behind.
• The most practical andeconomicalway to create real change is for sectors to work together to find an affordable alternative to fossil fuels.
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SCE’s integrated solution
Clean the power grid. And electrify.
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• Align with State policy and regulatory direction.
• Effectively meet need in load pockets close to customers’ demand.
• Replace retiring fossil‐fuel power generation and respond to restricted natural gas supplies.
• Avoid electric grid system upgrades through “non‐wires” alternatives.
• Reduce emissions profile of the electric grid by charging when the grid supply is the cleanest and discharging to avoid running higher polluting power plants.
Objectives of Deploying Energy Storage at SCE
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Deploying Energy Storage at SCE through Three Paths
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Utility Owned Energy Storage Overview at SCE
Irvine Smart Grid Demonstration (ISGD)
Southern California Edison9
Purpose : Demonstrate feeder relief
Location: At and around
the University of CA, Irvine (UCI)
Partner/Site Host:
US DOE, UCI, University Staff
Size: 2MW/ 0.5MWh
Demonstration period: Completed
as of Q3 2015
Footprint:53 foot cargo
container
The ISGDproject was an
end-to-end study of smart grid
technologies with multiple energy storage systems
Three Primary Objectives:
1. Demonstrate next generation of distributed automation
2. Optimize voltage and VAR control
3. Demonstrate next generation substation automation *SCE’s distributed battery energy storage subproject
Tehachapi Storage Project (TSP)
Southern California Edison10
Purpose:Evaluate capability of utility-scale battery technology to
improve grid performance & assist in integration of
variable energy resources
Location: Monolith
Substation in Tehachapi, CA
Partner/Funding Source:
US Department of Energy (DOE)
Size: 8 MW/32 MWh
Completed:July, 2014
Footprint:6,300 sq. ft.
building
The area is part of the Tehachapi Wind Resource Area, currently
capable of delivering over 2,000 MW of renewable
energy
At the time of commissioning, TSP was one of
the largest battery energy
storage systems in the world
Distribution Energy Storage Integration (DESI)
Southern California Edison11
BESS Enclosure – houses batteries
Power Conversion System – converts DC to AC power
12 kV/480 V Transformer – steps voltage up or down
Switchgear –connects to
distribution system
Communications – supports data
transfers remotely
Purpose:Support the circuit during peak loads
Location: Orange, CA
Partner/Site Host:
National Oilwell Varco Facility
System Size: 2 MW/4 MWh
Footprint: ~1,600 sq. ft. (future
footprint slightly larger)
Battery energy storage systems
are comprised of 5 main components
12 Southern California Edison
Purpose:Governor Brown’s
Emergency Proclamation→CPUC
Resolution E-4791
Location: Ontario, CA
Adjacent to SCE’s Mira Loma Peaker &
Substation
Size: • 20 MW/80 MWh• Energy for 15,000
homes for 4 hours
Commercial Operation:
Received CAISO confirmation on
12/30/16
Systems are bid into CAISO wholesale
generation market for day ahead and real
time dispatch
Construction:Facility was
constructed in 90 days through rain and
Holidays
Footprint: ~62,000 square feet
(under one and a half acres)
Components:• 398 Powerpacks• 48 Inverters
Connection: Each system
connected to 12kV circuit that feeds
customers
Considerations:Facility built between
66kV and 220kV transmission lines
SCE’s Mira Loma Tesla Battery Energy Storage Installation
• “The SCE-GE project is a perfect example that distributed energy resources can be used in innovative ways and still fully participate in the wholesale energy market managed by the ISO.”
Steve BerberichPresident and CEO
California Independent System Operator
• SCE’s Hybrid EGT won several awards:• Edison Electric Institute (EEI) Edison Award• Energy Storage North America (ESNA) Innovation
Award• South Coast Air Quality Management District
(SCAQMD) Innovative Clean Air Technology Award• Power Magazine’s Top Plant Award
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Energy Storage Integration Program (ESIP)
1. Optimize
Grid
3. Reduce
GHG
2. Integrate Renewabl
es
DESI
Deferral
High PV
ESIP Summary• Energy Storage Integration Program (ESIP) Strategy
Summary‒ The ESIP pilot approach is focused on learnings needed to
quantify benefit streams and build future Distributed Energy Resources (DER)/Distribution System Operator (DSO) capabilities
‒ 12 pilots are focused on program areas of:
• Project drivers: ‒ D. 13-10-040 established a 580 MW Energy Storage (ES)
procurement target for SCE (up to 290 MW of utility owned storage allowed)
‒ ESIP is aligned with CPUC goal of market transformation and ES guiding principles
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2 DESI Distribution Energy Storage Integration –grid optimization and reliability
3 DeferralTraditional Investment Deferral – identified through DSP and TSP1
3 High PV High PV Penetration –target circuits with >4MW connected PV
4 Strategic OpportunitiesStrategically address additional areas of learning
APPROVED
1. DSP: Distribution Substation Plan; TSP: Transmission Substation Plan