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) 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 2 SOUTHERN CALIFORNIA EDISON Advanced Technology
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 3 SOUTHERN CALIFORNIA EDISON Advanced Technology
Present 1 2 3 4 5 6 Large-Scale Energy Storage (8MW/32MWh – Q2 2014) 1 Tehachapi Evaluate a utility scale lithium- ion battery’s ability to increase grid performance & integrate wind • Storage Project generation Large Commercial PLS Program (100kW/500kWh – Q2 2014) 2 Evaluate Energy Storage for Large Commercial Customer Permanent Load Shifting Irvine • Large Distributed Energy Storage (2MW/500kWh unit – Q2 2014) Smart 3 Grid Evaluate the use of a containerized storage device to relieve distribution circuit constraints and • mitigate overheating of the substation getaway Demonstration Large-Scale Community Energy Storage (CES) (100kW/100kWh – Q4 2013) 4 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) 5 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) 6 Evaluate the performance of energy storage in the home using various functions, including level • demand, peak load shaving, demand response, and secure load backup 4 SOUTHERN CALIFORNIA EDISON 4 Advanced Technology
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 MW Storage Grid Domain Total 2014 2016 2018 2020 Total (Point of Interconnection) 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 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 5 SOUTHERN CALIFORNIA EDISON Advanced Technology
Future 3 1 2 Distributed Energy Storage Integration (DESI) Pilot Program (approx. 1 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 ) 2 • Evaluate aggregated energy storage units on the distribution system with optimized controller Procurement 3 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 • 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 6 SOUTHERN CALIFORNIA EDISON 6 Advanced Technology
SCE Energy Storage Facilities and Technology Development Approach 7 SOUTHERN CALIFORNIA EDISON Advanced Technology
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 of Large Distributed Energy Storage Systems up to 6MVA 8 SOUTHERN CALIFORNIA EDISON Advanced Technology
Advanced Technology Structured Approach Investigation Modeling/ Demonstration Pilot Deployment Laboratory • Selection of • Integrating • Standards process • SCE standard Evaluation projects based on devices and • Training • Project support various SCE systems in a real development • Knowledge • Testing prototypes organizations’ world • Performance transfer • Building inputs environment validation and • Ongoing predictive models • External • Evaluating verification consultation • Assessing market collaboration with cost/benefits • Support capital entrants Tech Advisory decision process • Systems Boards, research integration organizations, VCs, universities, • Evaluating grid standards bodies, impacts utilities 9 SOUTHERN CALIFORNIA EDISON Advanced Technology
SCE Battery Storage Evaluation Philosophy Electrochemical Energy Storage Evaluation System Evaluation - Assess Various Field Evaluation Chemistries for - Validate Full Performance and System Potential Cost - Demonstrate Performance Reduction Functionality and - Validate Control - Determine Battery Values in Actual System Operational Life Application - Prepare - Provide Input for - Engage Internal Documentation for Strategic Planning and External Field Installation Stakeholders - Train Field Personnel - Engage Internal and External Stakeholders 10 SOUTHERN CALIFORNIA EDISON Advanced Technology
SCE ES Field Evaluation Demonstration Programs Pilots Programs Assess Technical Deployment Merit Provide a Functional System Mainstream - Demonstrate Grid Device Functionality - Resolve a Grid - Demonstrate Problem Potential Value - Increase Streams Operational - Demonstrate Excellence Reliability - Capture Value Streams - Pursue Standardization 11 SOUTHERN CALIFORNIA EDISON Advanced Technology
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 12 SOUTHERN CALIFORNIA EDISON Advanced Technology
Appendix 13 SOUTHERN CALIFORNIA EDISON 13 Advanced Technology
Residential Energy Storage Unit (RESU) IRVINE SMART GRID DEMONSTRATION (ISGD) • Behind-the-meter devices – Unlikely to install more for ownership initiative – Would not require siting/permitting • 4kW / 10 kWh unit • Dimensions: 25x35x60 inches 14 SOUTHERN CALIFORNIA EDISON 14 Advanced Technology
Community Energy Storage (CES) IRVINE SMART GRID DEMONSTRATION (ISGD) 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 15 SOUTHERN CALIFORNIA EDISON 15 Advanced Technology
Community Energy Storage (CES) IRVINE SMART GRID DEMONSTRATION (ISGD) CES unit in the lab without the CES unit installed (device on the left is battery (which would be a bypass switch, which may not be underground, below unit) required in large scale deployment) 16 16 SOUTHERN CALIFORNIA EDISON Advanced Technology 16
Scale of Li-ion Storage Systems TEHACHAPI STORAGE PROJECT (TSP) x 56 x 18 Cell Module Rack 3.7V 52V 930V • • • 60Wh 3.2kWh 58kWh • • • 380g 40kg 950kg • • • 17 SOUTHERN CALIFORNIA EDISON 17 Advanced Technology
Large Scale Community Energy Storage IRVINE SMART GRID DEMONSTRATION (ISGD) • Integrated with solar PV car shade project (charging EVs to alleviate peak load) • 20 foot storage container • 50 kW / 100 kWh 18 SOUTHERN CALIFORNIA EDISON 18 Advanced Technology
Battery Energy System IRVINE SMART GRID DEMONSTRATION (ISGD) • Demonstrating feeder relief • 53 foot cargo container • Ancillary skid and Interconnection skid • 2MW/0.5MWh 19 SOUTHERN CALIFORNIA EDISON 19 Advanced Technology
TSP Facility • 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 20 SOUTHERN CALIFORNIA EDISON 20 Advanced Technology
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