Energy Storage Demonstration Programs at Southern California Edison - - PowerPoint PPT Presentation

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Energy Storage Demonstration Programs at Southern California Edison - - PowerPoint PPT Presentation

Dec 19, 2023 301 likes •585 views

Energy Storage Demonstration Programs at Southern California Edison Mark Irwin Director, Technology Development Advanced Technology Southern California Edison 1 SOUTHERN CALIFORNIA EDISON Advanced Technology Southern California Edison (SCE)

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Energy Storage Demonstration Programs at Southern California Edison

Mark Irwin

Director, Technology Development Advanced Technology Southern California Edison

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Southern California Edison (SCE) Overview

  • One of the largest utilities in

America

  • Committed to providing safe,

reliable and affordable electric service to nearly 14 million people in central, coastal and southern California

  • Award-winning energy efficiency

and demand response programs

  • Industry leader for 125 years
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Major Policy and Technology Drivers for Storage

  • Expanding Penetration of Solar and Wind generation

– 33% Renewable Portfolio Standard – Distributed PV (1-2MW arrays) – Self-Generation Incentive Program (SGIP) – California Solar Initiative (CSI)

  • Regulatory Change for Non-Renewable Generation

– Once-Through Cooling (OTC) – Greenhouse Gas, AB 32

  • Changes in Homeowner Load Profile

– ZNE homes and Title 24 – Plug-in Electric Vehicles (PEVs)

State policies led SCE to complete strategic planning analysis which resulted in 2010 Energy Storage White Paper

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Tehachapi Storage Project Irvine Smart Grid Demonstration

Large-Scale Energy Storage (8MW/32MWh – Q2 2014)

  • Evaluate a utility scale lithium-ion battery’s ability to increase grid performance & integrate wind

generation

Large Commercial PLS Program (100kW/500kWh – Q2 2014)

  • Evaluate Energy Storage for Large Commercial Customer Permanent Load Shifting

Large Distributed Energy Storage (2MW/500kWh unit – Q2 2014)

  • Evaluate the use of a containerized storage device to relieve distribution circuit constraints and

mitigate overheating of the substation getaway

Large-Scale Community Energy Storage (CES) (100kW/100kWh – Q4 2013)

  • Integrate energy storage with solar PV to help minimize the impact of plug-in electric vehicle

charging at work during peak periods

Community Energy Storage (CES) (25kW/50kWh – Q2 2013)

  • Evaluate the use of energy storage to shave peak load on the low voltage side of the residential

transformer

Residential Home Energy Storage Unit (RESU) (4kW/10kWh – Q3 2013)

  • Evaluate the performance of energy storage in the home using various functions, including level

demand, peak load shaving, demand response, and secure load backup

1 2 3 4

Present

1 2 4 5 6

5

4

3

6

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D 13-10-040 requires SCE to procure 580MW of energy storage by 2020 and gives SCE the opportunity to own up to 290MW

SCE’S ENERGY STORAGE REQUIREMENTS

Storage Grid Domain (Point of Interconnection) 2014 2016 2018 2020 Total Total Range Transmission 50 65 85 110 310 62 - 458 Distribution 30 40 50 65 185 37 - 433 Customer 10 15 25 35 85 85 Total 90 120 160 210 580 580

MW

FLEXIBILITY:

  • Up to 50% of total procurement goal can be Utility Owned
  • Up to 80% of MWs can be:

– Shifted between Transmission and Distribution buckets (only) – Deferred (not past 2020) with a showing of unreasonableness

  • All projects must be installed and operational by 2024
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Distributed Energy Storage Integration (DESI) Pilot Program (approx.

2MW/4MWh – Q4 2014)

  • Deploy energy storage on the distribution system to solve a challenge or for economic benefit

Distribution Optimized Storage (DOS) (1MW/1MWh – 2015)

  • Evaluate aggregated energy storage units on the distribution system with optimized controller

Procurement

  • SCE long-term procurement plan (LTPP) Track 1 that includes a procurement requirement for 50MW of

energy storage by 2021 plus additional opportunity for preferred resources or energy storage

  • Recent Track 4 decision provides additional opportunity for preferred resources or energy storage
  • Remainder of 580 MW not built by SCE

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Future

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SCE Energy Storage Initiative (Up to 290MW)

  • CPUC Energy Storage Mandate (AB 2514) includes a procurement requirement for 580MW of

energy storage by 2020 with up to 290MW of ownership opportunity

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SCE Energy Storage Facilities and Technology Development Approach

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SCE’s Energy Storage Laboratories

  • EV Technical Center (EVTC) in

Pomona – Unique energy storage test facilities in the utility industry – Cell level to full system testing

  • Large Energy Storage Testing

Apparatus (LESTA) in Westminster – Dedicated to the evaluation

  • f Large Distributed Energy

Storage Systems up to 6MVA

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Advanced Technology Structured Approach

Investigation

  • Selection of

projects based on various SCE

  • rganizations’

inputs

  • External

collaboration with Tech Advisory Boards, research

  • rganizations,

VCs, universities, standards bodies, utilities

Modeling/ Laboratory Evaluation

  • Testing prototypes
  • Building

predictive models

  • Assessing market

entrants

  • Systems

integration

  • Evaluating grid

impacts

Demonstration

  • Integrating

devices and systems in a real world environment

  • Evaluating

cost/benefits

Pilot

  • Standards process
  • Training

development

  • Performance

validation and verification

  • Support capital

decision process

Deployment

  • SCE standard
  • Project support
  • Knowledge

transfer

  • Ongoing

consultation

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SCE Battery Storage Evaluation Philosophy

Electrochemical Energy Storage Evaluation

  • Assess Various

Chemistries for Performance and Potential Cost Reduction

  • Determine Battery

Operational Life

  • Provide Input for

Strategic Planning

System Evaluation

  • Validate Full

System Performance

  • Validate Control

System

  • Prepare

Documentation for Field Installation

  • Train Field

Personnel

  • Engage Internal

and External Stakeholders

Field Evaluation

  • Demonstrate

Functionality and Values in Actual Application

  • Engage Internal

and External Stakeholders

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SCE ES Field Evaluation

Demonstration Programs

Assess Technical Merit

  • Demonstrate

Functionality

  • Demonstrate

Potential Value Streams

  • Demonstrate

Reliability

Pilots Programs

Provide a Functional System

  • Resolve a Grid

Problem

  • Increase

Operational Excellence

  • Capture Value

Streams

  • Pursue

Standardization

Deployment

Mainstream Grid Device

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Lessons Learned & Challenges

  • Capturing promised value streams in actual applications
  • Siting, Siting, Siting

– Site selection – Aesthetics – Noise

  • Demonstrating reliability
  • Building positive business cases
  • Integrating with existing utility communication infrastructure & new

Smart Grid technologies

  • Validating large systems prior to deployment
  • Availability of truly grid ready systems
  • Availability of standard application definitions and test procedures
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Appendix

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Residential Energy Storage Unit (RESU)

  • Behind-the-meter devices

– Unlikely to install more for ownership initiative – Would not require siting/permitting

  • 4kW / 10 kWh unit
  • Dimensions: 25x35x60 inches

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IRVINE SMART GRID DEMONSTRATION (ISGD)

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Community Energy Storage (CES)

  • CES unit with the battery installed underground
  • 25kW / 50kWh unit
  • Dimensions: Inverter (above ground) is 37x50x32 inches; the batteries are

28x26x46 inches and are underground in an enclosure that is 41x74x52 inches

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IRVINE SMART GRID DEMONSTRATION (ISGD)

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CES unit installed (device on the left is a bypass switch, which may not be required in large scale deployment)

Community Energy Storage (CES)

CES unit in the lab without the battery (which would be underground, below unit) 16

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IRVINE SMART GRID DEMONSTRATION (ISGD)

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Scale of Li-ion Storage Systems

17 Cell

  • 3.7V
  • 60Wh
  • 380g

Module

  • 52V
  • 3.2kWh
  • 40kg

Rack

  • 930V
  • 58kWh
  • 950kg

x 56 x 18

TEHACHAPI STORAGE PROJECT (TSP)

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  • Integrated with solar PV

car shade project (charging EVs to alleviate peak load)

  • 20 foot storage container
  • 50 kW / 100 kWh

Large Scale Community Energy Storage

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IRVINE SMART GRID DEMONSTRATION (ISGD)

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Battery Energy System

  • Demonstrating feeder

relief

  • 53 foot cargo container
  • Ancillary skid and

Interconnection skid

  • 2MW/0.5MWh

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IRVINE SMART GRID DEMONSTRATION (ISGD)

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  • Installed at SCE’s Monolith

Substation

  • 6,300 sqft building
  • Connected at sub-

transmission level through a 12/66kV transformer TSP "building“

  • TSP interconnection

facilities with TSP "building" in the background

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TSP Facility

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TSP Battery Configuration

  • 604,800 Cells
  • 10,800 Modules - 14

series / 4 parallel cells per module (56 cells total)

  • 600 Racks - 18 modules

per rack

  • 4 Sections - 150 racks

per section

  • 8 MW / 32MWh System

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TSP Facility

  • Located in the Tehachapi area,

California’s largest wind resource

  • Massive wind development

potential driving grid infrastructure (up to 4,500 MW)

  • Installed at SCE’s Monolith

Substataion

  • 6,300 sqft building
  • Connected at sub-transmission

level through a 12/66kV transformer

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BESS Facility

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How to Scale Li-ion Storage Systems

Cell

  • 3.7V
  • 60Wh
  • 380g

Module

  • 52V
  • 3.2kWh
  • 40kg

Rack

  • 930V
  • 58kWh
  • 950kg

x 56 x 18

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TSP Battery Configuration

How to get 32 MWh from a 60Wh cell

  • 4 Sections - 150 racks per

section

  • 600 Racks - 18 modules per

rack

  • 10,800 Modules - 14 series/4

parallel cells per module

  • 604,800 Cells
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Mini system at EVTC & PCS controller at RTDS Lab

Battery Racks PCS Smart Energy Controller Battery Section Controller DC Switchgear & Controls PCS Controller

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TSP Mini-system - Key Findings

  • Discovered and resolved major safety issues regarding the

battery system and PCS operation

  • Manufacturer performed multiple software/firmware

upgrades

  • Based on 24/7 operation for more than 3 months, many

additional functional upgrades have already been implemented (e.g., optimize control algorithms & graphic user interface)