Micro-grid related activities in Japan

Sep.11,2013

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Yasuhiro Shimizu Deputy Director

New Energy and Industrial Technology Development Organization (NEDO)

Coordination with Policymaking Authorities

Combined Efforts of Industry, Government and Academia

• Addressing energy and global environmental issues through technology development and international collaborative demonstration projects • Enhancement of cutting-edge industrial technologies

• •

NEDO’s Mission

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New Energy and Industrial Technology Development Organization

2000 2010

AICHI EXPO Rinku-Tokoname

Hachinohe Micro-grid

Kyotango Micro-grid

Shimizu Corporation Micro-grid

2013

Tokyo Gas Yokohama Techno Station

Roppongi Hills

2005

Miyako Island Mega-Solar Dem. Project

New Mexico Migro-grid Los Alamos, Albuquerque Building

Sendai Micro-grid

NEDO four Micro-Grid Projects

Private Micro-Grid related Projects

METI Supported Micro-Grid Related Projects

History of Micro-grid related activities in Japan

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Hawaii Project “JUMPSmartMaui”

Aichi Micro-grid

NEDO Supported Micro-Grid Related Projects

Aichi

Hachinohe

Kyotango

Ⅰ. NEDO four Micro-grid Projects in the early 2000

Sendai

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Aichi (EXPO & Rinku Tokoname) Micro-grid

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500kW

330kW

4.8t/day

20kg/hr

EMS

Aichi

Total Supply: 760kW ・PV systems 330kW ・NAS battery 500kW ・MCFC 270kW ・MCFC 300kW ・PAFC 800kW (200kW x 4units) ・SOFC 25kW ・Methane fermentation system 4.8t/day ・Gasification system 20kg/h

• This system was constructed for demonstration in EXPO 2005. • All resources were inverter based generation (PV, Fuel Cell, Battery). • Establishing one day independent operation twice.

Hachinohe Micro-grid

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Total Supply: 760kW ・PV 130kW (10kW x 3, 50kW x 2) ・ Wind turbine 20kW (4kW, 8kW x 2) ・ Gas engine 510kW (170kW x 3) ・ Battery[Lead-Acid] 100kW ・ Wooden waste steam boiler 1.0t/h ・ Steam boiler 4.2t/h

Hachinohe

• Typical micro-grid with private distribution line (5.4km). • Establishing one week independent operation. • Introducing early stage smart inverter for compensating imbalance of 3-phase.

The Sewage plant

Hachinohe C ity H all (360kw)

Wooden waste

Digestion c hamber

Digestion gas tank

Steam boiler

Gas engine 170kW*3

PV 10kW PV 10kw

PV 10kW

Wind turbine 2kW*2

CB

Hachinohe C ity H all new building Utility line

Hachinohe regional water supply authority (50kw)

Wind turbine 8kW Wind turbine 8kW

Junior high school (60kw)

Junior high school (53kw)

Private distribution line (5.4km)

Elementary school (46kw) Elementary

school (46kw)

PV 50 kW * 2 Steam boiler

Battery

100kw

Daily operation of micro-grid (in Hachinohe)

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1,300GE1+GE2

GE1

電池充放電

自然エネ

連系点潮流（買電量）

需要

制御誤差

蓄電量

GE1

需要

GE1+GE2蓄電量（右目盛り）

自然エネ（PV+WT)

電池充放電連系点潮流（＝買電量。計画値5kW）：ピンク制御誤差（連系点潮流と計画値の差）：赤

ｋW ｋWh

hh:mm

GE1+GE2 GE1 Battery New Energy Flow at connection Demand Control error Stored energy Demand

Stored energy in battery

Renewable energy (PV+WT)

Battery discharging power Flow at connecting point : Pink Control error of balancing : Red

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Kyotango Virtual Micro-grid

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Total Supply: 850kW ・Bio gas engine 400kW (80kW x 5units) ・MCFC 100kW ・Battery(Lead Acid) 100kW ・Wind turbine 50kW ・PV 50kW (30kW + 20kW)

Kyotango

This Micro-grid operated as back-up generator in the outage by earthquake on March 11, 2011.

Sendai Power quality managing Micro-Grid

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Ⅱ. Private Micro-Grid related Projects

Tokyo Gas Yokohama Techno Station

Shimizu Institute of Technology

Roppongi Hills

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Shimizu Corporation / Micro-grid in Shimizu Institute of Technology

11 SHIMIZU CORPORATION

• In operation since July, 2006

• The largest micro-grid in Japan as of 2006

• Realization of transfer to islanding operation without an instantaneous power failure.

Energy Plant

Shimizu Institute of Technology

Gas Engine 350kW 90kW

Electric Double Layer Capacitor

±100ｋW×2sec

Storage Battery Ni-MH(100kW-80kWh)

Li-ion(100kW-60kWh)

PV 10kW

Tokyo Gas/ Test Facility at the Tokyo Gas Yokohama Techno Station

12 Tokyo Gas Co., Ltd.

To verify the value of SEN(Smart Energy Network) using Gas Engine.

In the basement of Roppongi Hills, 6units of cogeneration system are installed. This system is usually operated by city gas but it can also be operated by fuel oil in the case of emergency.(Dual Fuel)

Roppongi Hills

13 Mori Building Co., Ltd. Tokyo Gas Co., Ltd.

Electric power supply during emergencies

Ⅲ. METI Supported Micro-Grid related Project

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Okinawa/ Miyakojima-Island

Miyako Second Power Station (Diesel) 40,000kW

Miyako Gas Turbine Power Station 15,000kW

Miyako Power Station (Diesel) 19,000kW

Karimata area Existing Wind Turbine(600kW, 900kw x 2)

•PV 4.0MW •Battery 4.1MW(NAS, LiB) •Existing Wind Turbine (900kW x 2)

Miyako Island Mega-Solar demonstration project

Approx. 900m

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Approx. 110m

The Okinawa Electric Power Company, Incorporated

Demonstrative Project of Renewables on Off-Islands with Small Independent Grid in 2009 from METI

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Ⅳ. NEDO Supported Projects

Taos

Roosevelt Las Cruces

Los Alamos Albuquerque

Los Alamos

Alburquerque

Maui Island

New Mexico

NEDO’S Project in Maui Island “JUMPSmartMaui”

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• Reliable power supply under high penetration of Renewables by managing EV charging etc.,

• 2011-2015

• Manage EV charge

ØShift to midnight ØStop charging when unexpected Wind

down ramp occurs etc., • 20 Quick Charging Stations The Operation will start at the end of 2013.

Partners; The State of Hawaii, HECO, MECO, HNEI, The County of Maui, The Maui Economic Development Board etc., Entrusted parties; Hitachi, Mizuho Corporate Bank, Cyber Defense

Maui Island Peak load : 200MW Off Peak : 90MW

Wind Power 30 MW

Solar Power 6 MW

Outline of the system

Making island smart with EV coexist wind power and solar energy

NEDO’S Project in New Mexico

State of New Mexico Los Alamos National Laboratory (LANL)

Sandia National Laboratories(SNL) Los Alamos County (LAC)

The University of New Mexico (UNM) Public Service of New Mexico (PNM)

Mesa del sol (MDS)

Los Alamos Los Alamos County, LANL

Albuquerque MDS (developer), SNL, PNM, UNM

(I) Microgrid Demonstration in residential district

(II) Smart House Demonstration (III) Microgrid Demonstration in Commercial Areas

(IV) Collective Research on Overall Project

・New Mexico project is first overseas smart Grid Project of NEDO.

・The project is being carried out in cooperation with U.S. national laboratories, which

conducts research on advanced technologies for renewable energy and energy security.

Toshiba Corporation Hitachi, Ltd. Kyocera Corporation NGK Insulators, Ltd.

Itochu Techno-Solutions Corporation

NEC Corporation Kyocera Corporation Sharp Corporation Shimizu Corporation

Japan Side (NEDO , Entrusted Company) US Side

Meidensha Corporation Fuji Electric Co., Ltd. Tokyo Gas Co., Ltd. Mitsubishi Heavy Industries, Ltd. Furukawa Electric Co., Ltd. Furukawa Battery Co., Ltd.

Cyber Defense Institute, Inc. Accenture

Kandenko

Itochu Corpration

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Smart Grid Demonstration in Residential Areas in Los Alamos

In addition to storage batteries for grids, control of renewable energy output fluctuations by using demand response of residential houses will be verified in a suburb-type distribution system located in a residential area. Moreover, Demand response demonstration is trying to operate.

150kV 13.2kV

Lead-acid batteries 0.8MW(2.3MWh)

NAS batteries 1.0MW(6MWh)

PV 1MW

μEMS

Switch Gear

Demand response (DR) demonstration

Exploiting the advantages of the different batteries to produce hybrid control!!

11 different kinds of PV panel installed

Smart meters installed general users to demonstrate advanced DR options such as CPP, PTR, Opt-in

and Opt-out

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Smart Grid Demonstration in Commercial Areas in Albuquerque

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Aperture center of Mesa del Sol

Plant yard

PV (solar panel) 50kW

BEMS

Air-Source Chiller

Lead acid Battery (50kW/100kW)

Gas Engine Generator 240kW Fuel Cell 80kW Schematic diagram of the demonstration system

BEMS control results in interconnected mode

Smart Grid Demonstration in Commercial Areas in Albuquerque

Shimizu Corporation 21

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Power flow at PCC

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Total power load

Constant power flow control at PCC 2013．4．16

Fuel Cell

PV: 50kW Lead acid Battery: 50kW/100kW Fuel Cell: 80kW Gas Engine Generator(GE): 240kW

The purposes of Micro-grid:

Conclusion

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1. Increasing the capacity of connectable renewable energy by establishing balancing control within small grid.

2. Enhancing reliability or adequacy of power supply by establishing independent operation capability.

3. Japan has developed micro-grid technology from early 2000s.

These can be applied to island grids.

Mahalo!

If you want to know more, please attend IRED 2014 (Nov. 2014 in Kyoto, JAPAN)

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