powin energy millikan i project battery energy … · 2018. 2. 10. · and both were not...
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POWIN ENERGY
MILLIKAN I PROJECTBATTERY ENERGY STORAGE SYSTEM
Blake Rector, PhD, Powin EnergyMike McGuffin, Customized Energy Solutions
Energy Storage and Distributed Energy Resources WorkshopCAISO – 16 January 2018
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Full Range of Energy Market Services
Market IQWholesale
ServicesRetail Services
Demand Response
Congestion Mgmt Renewable MgmtEmerging
Technologies
CES
ISO Reporting
Rule Changes
RegulatoryDispatch
Scheduling
Monitoring
Bidding
Telemetry
Settlements
24 Hour Desk
Market Participant
Market Optimization
DA / RT Strategies
CES|GOLD
Market Entry
EDI/Billing
Forecasting
Scheduling
Settlements
Pricing
Congestion Management
Headroom Analysis
Managed Portfolio Services
DR Mgmt
CES|GREEN
SecureNet
Tracking
Settlement
ARR Analysis
FTR Analysis
Congestion Analysis
Power Flow Studies
RPS Management
Plant Registration
REC Optimization
Compliance
Storage IQ
CoMETS Valuation Models
Forecasting Storage Market Size
Market Entry & Business Strategies
Storage Rules
Technology Due Diligence
Microgrids
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CES Offices
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4
Customized Energy Solutions (CES)
• CES manages approximately 9,000 MWs of capacity across six
ISO/RTOs in North America including over 100MWs of Energy Storage.
• CES is a certified CAISO Scheduling Coordinator under the affiliate
name of Galt Power.
• CES has been scheduling in the CAISO market since 2010.
• Currently schedule for Dispatchable Renewables, Direct Access
Load, Proxy Demand Resources, and Energy Storage.
CES is objective and independent--not affiliated with any trading, marketing, distribution or transmission companies
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OUTLINE
• Project Owner / Project Information (3 slides)
• Market Participation Issues (1 slide each)
- Infeasible AGC Dispatch
- Persistent AGC Dispatch
- Accuracy Scores
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Project Owner: esVolta
Highlights esVolta launched in 4Q 2017• Develop, build, own, operate business model
• Focus on greenfield development and M&A in the North American utility-scale storage market
• Contracted project portfolio of 116 MWhs
• Additional 800+ MWhs in development pipeline
Strengths Resourced to achieve market scale• Dedicated team for project development, financing, management and operations
• Long-term capital commitment from Blue Sky Alternative Investments, a global infrastructure investor
• Strategic procurement relationship with Powin Energy Corporation, a leading lithium-ion battery storage technology integrator
esVolta is a leading North American utility-scale energy storage platform
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PROJECT INFORMATION
• Size: 2 MW/8 MWh• Technology:
• Powin Energy BP400+ BESS• Lixin LiFePO4 cells (lithium iron phosphate)• Eaton Energy Xpert 2 MW inverter
• Operation: Day Ahead and Real Time Energy, Regulation
• Interconnection: SCE medium-voltage grid Virgo 12 kV distribution line out of Estrella 66/12 kV substation
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PROJECT INFORMATION• BESS Control
• Industry exclusive Powin bp-OS• Battery OdometerTM
• Warranty TrackerTM
• BMS• Patented in US and China
• Modular design• Scalability• Speed of deployment
• CES Secure|Net Remote Intelligent Gateway (RIG)
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INFEASIBLE AGC DISPATCH
• Continuing to receive AGC signals to CHARGE after hitting MAX SOC
• CIDI Ticket filed in August 2017 – Received several iterations of
responses, but nothing conclusive
• Observed improvements soon thereafter
• Recently started seeing infeasible dispatches again
• 8 such occurrences of sustained infeasible dispatch week of 1/1/2018
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PERSISTENT AGC DISPATCH
• Many occurrences of >1hr constant
Reg Down CHARGE signal
• Consistent dispatch pattern occurring in certain hours
-2500
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-1500
-1000
-500
0
0:00 0:30 1:00 1:30 2:00 2:30
kW
Time Duration
Dispatch Power - AGC Signal
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ACCURACY SCORES
• ISO Settlement Accuracy data is not what we see in our internal data
-2500
-2000
-1500
-1000
-500
0
500
1000
1500
2000
2500
0:00 0:01 0:02 0:04 0:05 0:07 0:08 0:10 0:11
kW
Time Duration
Example AGC Signal and Powin Response - 4 second data
DispatchPower - AGC Signal PCSPower - Powin Response
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ACCURACY SCORES
• How is latency treated?
• Lack of clarity on calculation…
➢ 4 Second data used in calculation not published
• Ramp Rate determination – lacks transparency
➢ Ramp rates calculated by ISO from Operational Test versus Regulation Test were very different
and both were not representative of experience during the test or unit capability.
-2.5
-2
-1.5
-1
-0.5
0
0.5
9:59:54 10:00:12 10:00:29 10:00:46 10:01:03 10:01:21 10:01:38 10:01:55
MW
AGC vs Response – as seen by ISO - 4 sec data
Telemetry AGC SetPt
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POWIN ENERGY - MILLIKAN I • Blake Rector, PhD – Director of Analytics,
Powin [email protected]
• Mike McGuffin – Director of Wholesale Services West, Customized Energy Solutions