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©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved. TEPCO’s Initiatives for “Smart Grid” ~ NEDO Demonstration Project in “Niijima-Island” ~ January 9, 2017 Shuichi ASHIDATE, Ph.D Vice President TEPCO Research Institute Tokyo Electric Power Company Holdings 60 Hz 50 Hz Service Area: 39,000 km 2 One-tenth of Japan’s land area Number of Customers: 29 million Electricity Sales: 247 billion kWh (FY 2015) Generation Capacity: 66GW Peak Demand: 53.3 GW (Aug 2016) TEPCO’s Position

TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

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Page 1: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

TEPCO’s Initiatives for

“Smart Grid”

~ NEDO Demonstration Project

in “Niijima-Island” ~

January 9, 2017

Shuichi ASHIDATE, Ph.D

Vice President

TEPCO Research Institute

Tokyo Electric Power Company Holdings

60Hz

50Hz

◆Service Area: 39,000 km2

・One-tenth of Japan’s land area

◆Number of Customers: 29 million

◆Electricity Sales:

247 billion kWh (FY 2015)

◆Generation Capacity: 66GW

◆ Peak Demand:

53.3 GW (Aug 2016)

TEPCO’s Position

Page 2: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

TEPCO Company Structure 1

• TEPCO moved to a holding company structure in April 2016

Decommissioning of Fukushima site Nuclear Power

Regulated sector

34,000 employees

3,000 employees 20,000 employees 3,000 employees

TEPCO Research Institute

Page 3: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

2

Mega-trends in Energy Business

De-Carbonization

Deregulation

Decentralization

Digitalization

Depopulation

Page 4: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

3Future Prospects of Electric Power

Demand in Japan

2013 2020 2030 2050

1.29

0.98

Bulk Energy Resources:

Thermal/Nuclear Power Plants

Distributed Energy Resources + Energy Storage

Distributed Energy Resources

Electric Power Demand(1012kWh)

Power-to-X

0.75

0.65

Power-to-X

Energy Saving/

Depopulation

Page 5: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

4Massive Integration of Renewable Energy with

Utility Grid - Issues and Counter-measures

-Shortage of Reserved Capacity, Adjusting Capacity

-Over Voltage in Distribution Lines

-Surplus Power

-Complication of Power System Operation

-Capacity Mechanism

-Improvement of Forecasting Accuracy for Solar/Wind Power

-Monitoring and Control of Renewable Energy

-Demand ResponseControl of Storage Batteries

-Facility Reinforcement for Transmission and Distribution Lines

-Cross-regional Coordination of Transmission Operators

Issues Counter-measures

-Shortage of Transmission Capacity

-Monitoring and Control of Transmission and Distribution Lines

Page 6: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

5

Distribution NetworkRenewable

Energy

Supply-Demand Control

Control/Suppress

Communications NetworkEnergyStorage

Prediction

•Output•Fluctuation•Ramp

Generator & Battery

Compensation

•Supply Capacity•Adjusting Capacity for

Frequency Control

Control Center

NEDO Demonstration Project for Smart Grid

in Niijima Island (2014~2018)

Page 7: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

6

WT300kWX2 + Energy Storage 500kWhPV9kW + Energy

Storage12kWh

Energy Storage

WT: Wind Turbine

PV: PhotoVoltaic

1 2kmPV315kW

Energy Storage

Heat Pump

Diesel Generator 7,700kW

2,500kW, 2,000kW1,200kW, 1,000kW*2

Energy Storage 500kW*2

Facilities in NEDO Demonstration Project

Total Demand: 1,900 – 4,400kW

Total Renewable Energy: 1,100kW

WT: 600kW, PV: 500kW

PV9kW + Energy Storage 12kWh

PV9kW + Energy

Storage 12kWh

Page 8: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

7

Development of Integrated EMS

Diesel Generator

DG Control Panel

Integrated Control of Energy Storage

(Battery, Demand Time Shift)

Control of Outputs of Renewables Large Scale PV

WTSmall Scale PV(Customer Side)

Battery(Customer Side)

Heat Pumped StorageEV

Large Battery

(Grid Side)

Optimal Economical

Operation of DG

Integrated Energy Management System

Existing System

Prediction of RE Outputs and Fluctuations

New DG control Panel

Control

Monitor

G

MeteorologicalInformation

Demand Prediction

Page 9: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

8Development of Wind Ramp Forecasting

Technology

East Japan

50 Wind Farm

Wind Farms in Eastern Japan

70%

ramp

down

• Combination of Meteorological Approach

and Statistical Approach

• AI, IoT, Numerical weather prediction

• Take advantage of real-time big data

• Variable power output and weather data

Page 10: TEPCO’s Initiatives for “Smart Grid” · TEPCO’s Initiatives for “Smart Grid” ... Massive Integration of Renewable Energy with 4 Utility Grid - Issues and Counter-measures-Shortage

©Tokyo Electric Power Company Holdings, Inc. All Rights Reserved.

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Thank you for your kind attention.

Niijima-island