Grid stabilization technology for EV era including …Technology for EV Era 4 RE integration to be 175GW in 2022 EV Sales to be 30% of total Sales in 2030 Ancillary Market Design Reactive

©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


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.


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


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)


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


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.


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.


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.


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)


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)


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


Global spread of EV fast charger


Thank you for your attention.

Grid stabilization technology for EV era including …Technology for EV Era 4 RE integration to be 175GW in 2022 EV Sales to be 30% of total Sales in 2030 Ancillary Market Design Reactive

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