use cases and value drivers of storage for distribution ... · use cases and value drivers of...

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

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Source: SCE 2018 Sustainability Reporthttps://www.edison.com/home/investors/sustainability.html

Southern California Edison By the Numbers2

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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)


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)


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


Purpose:Emergency

Proclamation→CPUCResolution E-4791 & Operational Flexibility

Location: Norwalk, CA

BESS Size: • 10 MW/4.3 MWh

Gas Turbine Size: • 50 MW



12/30/16


generation market for spinning & non-

spinning reserve and regulation

CENTER EGT


CENTER BESS

Power Inverter AC to DC – (8) 1.25 MW

Medium Voltage Switchgear

13.8kV Interconnection

Step-Up or Down Transformers 13.8kV : 480V

Battery Enclosure 10MW – 4.3MWh

System Controller GE Mark-V


Purpose:Emergency

Proclamation→CPUCResolution E-4791 & Operational Flexibility

Location: Rancho Cucamonga,

CA

BESS Size: • 10 MW/4.3 MWh

Gas Turbine Size: • 50 MW



12/30/16


generation market for spinning & non-

spinning reserve and regulation

GRAPELAND EGT

EGT Concept and Integration Diagram

Southern California Edison 16

Hybrid EGT Benefits

• Instant Response/Always Ready Technology

• 50MWs of Operating Reserve• Primary Frequency Response• -8 to +5 MVAR Voltage Support• 134 MW-Secs Inertia• Black Start Technology

Greenhouse Gas Free Attributes

With Fuel Consumption • 50 MWs Peaking Energy for Local

Contingency• 25 MWs of High Speed Frequency

Regulation• Demand Charge Management• Self Managed BESS SOC

ProvidesReduced System Costs & Increases Customer Value‒ Optimized System Dispatch‒ Lower System Fuel Use‒ Lower Maintenance Costs ‒ Lower System GHG Emissions‒ Renewable Energy Integration ‒ Increased Market Participation

Enables

10MW

200s(5-10mins)0

50MW

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Southern California Edison

Hybrid EGT Market Results Since Go-Live

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Compared with SCE’s non-hybrid peakers over the same period:

• Higher capacity utilization• Lower fuel gas usage• Lower emissions• Higher market revenues

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5

10

15

20

25

30

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40

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Hybrid EGT Peakers Non‐EGT Peakers

Average Da

y‐Ah

ead Ca

pacity Sales

(MW)

SCE Peakers Capacity Utilization

Energy Non‐Spin Reg‐Down Reg‐Up Spin

Southern California Edison

Hybrid EGT Recognition and Accolades

• “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

ESIP Pilot Locations

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High PV-2019City: Palm SpringsCircuit: Invader

High PV-2019City: PalmdaleCircuit: Stealth

High PV-2018City: LancasterCircuit: Pronghorn

DESI 2-2018City: Santa AnaCircuit: Titanium

Deferral-TBDCity: TBDCircuit: TBD

Deferral-2018City: Pico RiveraCircuit: Cadillac

Strategic-2019City: Ft. IrwinCircuit: TBD

4 Other Projects TBD

Deferral-2019City: Pico RiveraCircuit: Yorktown

DESIDeferralHigh PVStrategic

Strategic-2018 (Demo E)City: BridgeportCircuit: Pickle Meadows

Strategic-TBDCity: TBDCircuit: TBD



8 Planned Projects

Imagine a world where the energy that powers our lives and propels us forward is provided by the Earth’s clean resources.

This is Our Clean Energy Future…

Vibhu KaushikDirector, Grid Technology & Modernization Southern California [email protected]

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