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©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
Grid stabilization technology for EV era including Virtual Power Plant(VPP)
1st May 2018
Tokyo Electric Power Company Holdings, IncTEPCO Power Grid, Inc
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
Expert Dialogue for Grid Stabilization in 2017-18
May 30 2017, both Ministries started a discussion as Joint meeting and established Expert Dialogue to discuss about India Grid Stabilization.The 1st expert dialogue was held in May/June under the Japan-India Energy Dialogue, the Joint Meeting Electric Working Group.3 Working plans from Japan are proposed at the 5th dialogue
2017/5-6 2017/7 2017/8 2017/10 2018/1
Surveying current situation of Indian grid
Giving Japan side experience and technology
1st.Visit
Discussion a proposal from Japan
Discussion about final proposal
Submission of the final proposals
2nd.Visit 3rd.Visit 4th. Visit 5th. Visit
1
January 9 2017, Minister Seko held a meeting with Mr. Goyal agreed that they will start discussions toward the realization of a model for supplying high-quality electricity in India
India and Japan on September 14th , both prime ministers appreciated Japan’s proposal for Japan-India Clean Energy and Energy Efficiency Cooperation Plan.
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
Approved Proposals of Grid Stabilization from Japan
To contribute to development of variable RE and providing high quality electricity in India, our 3 proposals are as below,
Installing reactive power management for voltage stabilizationInstalling adjustable speed hydro pump for frequency control reinforcementEstablishing working group for discussing ancillary market design and relevant technologies
2
UP
Rapid Demand Increase(A/C, Irrigation etc.)
Development of variable Renewable Energy175GW by 2022
Challenges
Challenges
Impact
Impact
V
t
Hz
t
Voltagefluctuation
Frequency fluctuation
InstallingReactive Power Management
InstallingAdjustable Speed
Hydro Pump
Establishing Working Group for Ancillary Market
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
Energy Storage
Renewable Energy
Coal Fired Thermal with IoT
Adjustable Speed Pumped Storage Hydro
Grid Stabilization for RE integration and EV
TEPCO can provide Technology, scheme and policy comprehensively.
Balancing Market Operator
• Ancillary Market Design• Reactive Power Management
Support for the market
Balancing Market
Each player supply the flexibility and get compensation.
Flexibility
3
Estimated market sizeOver 1.4 bn USD according to
current Japanese market size
VPP AggregatorV2G (Vehicle to the Grid)
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
Formulation of the Road Map to Integrate Grid Stabilization Technology for EV Era
4
EV Sales to be 30% of total Sales in 2030RE integration to be 175GW in 2022
Ancillary Market Design
Reactive Power Management
Adjustable Speed Pumped Storage Hydro
Coal Fired Thermal with IoT
V2G (Vehicle to the Grid)
Virtual Power Plant
Working Group
ConsultationFor specific theme
Feasibility study Pilot project Full-scale introduction
Feasibility study
Feasibility study
Feasibility study
Feasibility study
Pilot project
Pilot project
Pilot project
Detail study Introduction
Full-scale introduction
2018 2019 2020 2021 2022 2023 2024
TEPCO also can formulate the road map for various grid stabilization technology.
Source: SIAM India & Morgan Stanley
million cars
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
How VPP works?
5
Integrated control of multiple DERs
Power company
Adjust supply / demand balance using large scale power plants
BER(Bulk energy resources)
DER( Distributed energy resources)
Discharge
ChargeCharge
Aggregator
Virtual Power Plant
Negawatt Discharge
Charge
Fossil fuel plants
The aggregator remotely controls various energy resources on the customer side by using IoT so that they are combined optimally and function such as a large scale power plant.
VPP will utilize not only energy management for customers but also provide adjustment ability for power supply system and achieve substitution of existing high cost adjustment function such as fossil fuel plants.
Because EV charging demand has high flexibility, it is expected as one of the VPP resources.
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
Ancillary service market
Bulk power market
Capacity market
Retail companies
Grid operator
6
Role of Aggregator
Aggregation coordinator
ResourceAggregator
ResourceAggregator
ResourceAggregator
DERs
The Aggregation coordinator provides necessary functions on the grain side by optimal combination of resources of the resource aggregator.
The Aggregation coordinator maximizes revenue by choosing a market with high service value.
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
7
EV as a Distributed Energy Resources
EV has a large capacity battery which has a cost advantage as DER.
In the future, EV will surely spread rapidly around the world, and it can be expected to become the leading role of DER.
When EV is used as DER, it is necessary to consider schedule optimization according to the use conditions of the owner.
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
8
TEPCO EV aggregation system overview
EV aggregator can control the EVSE directly by both EMS and SM/EGW, but it is very expensive.
TEPCO’s system can control the charging simply by using smartphone and EV’s telematics service. This way is the most user friendly and low cost.
We will try to integrate the V2H in our system in the next step to control the charge/discharge more certainly.
SM/EGW
Telematics server
TEPCO server (EV aggregator system)
Charge/Discharge
controlStatus check
Monitoring/ Control
SM/EGW
APIAPI
APICharge schedule
Charge commandMonitoringCharge log
V2H
Aggregator Server
Status check
Outlet
Chargecommand
metering metering
Grid informationIncentive
Charge timereservationGrid information
Incentive
Monitoring/ Control
(Telematics service)(Telematics service)
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
Building platform to communicate properly between system operators and resource.Adopt of the operation method to fit the characteristic of resource.Supplying reserve and negawatt by various resource such as battery, EV, air conditioner, lighting tool, generators.
Capacity(kW)
Response Time
Generator
others
Large battery
Small battery battery
Combination of quick response battery and reasonable generators
Increasing reverse power flow to the local grid by distributed RE integration
→ Possibility of output control and access restriction
Connected battery for VPP and local grid stability.Study the impact to distribution grids and effect as the resource by demonstration projects and simulation.
increasing reversepower flow
PV, battery
The study of supplying reserve The study of local grid stabilization
VPP demonstration project
TEPCO Holdings leading consortium is now implementing virtual power plant demonstration projects funded by METI to realize the aggregation business.
Various tasks such as supplying reserve, local grid stabilization are studied.
9
To distribution grids
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社10
CHAdeMO Compatibility vs. Flexibility
Problems:Various kind of batteries can be used.Standardization may kill battery improvement.
How CHAdeMO works:EV computer controls charging speed.
Keep it flexible as much as possible !
ConnectorCurrent
Command Signal (CAN)
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社11
International DC charging systems
Connector
Vehicle Inlet
✓ ✓ ✓ ✓
✓ ✓(SAE)
✓ ✓
✓ ✓ ✓ ✓
✓
Max Power 200kW 500Vx200A
120kW 600Vx200A
200kW 1kVx200A
185kW 750Vx250A
?
Real-world Usage 50kW 50kW 50kW 50kW 120kW
CCS Combo1 (US)
CCS Combo2 (DE)
CHAdeMO (Japan)
GB/T (PRC)
TESLA
Multistandard is the de-facto standard in Europe
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社12
Global spread of EV fast charger
©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. 秘密情報 目的外使用・複製・開示禁止 東京電力ホールディングス株式会社
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