nas® batteries for technical challenges with …...2013/07/15 · nas battery absorbs the...

© 2018 NGK Insulators, Ltd. All rights reserved 1

NAS® batteries for Technical Challenges with Renewable Energy

NAS is the trademark of NGK INSULATORS,LTD., registered in the U.S.

November, 2018

NGK INSULATORS, LTD.


Contents

1. Outline of NGK Insulators, Ltd.

2. Structure and features of NAS Battery

3. NAS Battery Installations Around the World

4. Various applications of NAS Battery System

- Wind Power Stabilization and Energy Time Shift

- Solar Power Stabilization and Energy Time Shift

- Frequency Control and Energy Time Shift

- Hybrid Battery System


Outline of NGK Insulators, Ltd.

18,737 (consolidated)

1919 in Nagoya, Japan

(As the first Japanese manufacturer of ceramic insulators.)

US$ 0.6 Bil (69.8 billion Yen)

58 companies

Established Year

Paid-in Capital

Number of Employees

Consolidated Subsidiaries

US$ 4.2 Bil (451 billion Yen) （as of March 2018, Consolidated）Annual Net Sales

NGK's diversified products are based on ceramic material & manufacturing technologies.

Power Business Ceramics Business Electronics BusinessCeramic Business

Electronics

BusinessPower Business

Electronics Business

Process Technology

Business

Insulators for power transmission

NAS battery

Honeycomb ceramics for automobile

Diesel Particulate Filters

SAW filters

Electronic components

Semiconductor Manufacturing

Equipment

drying systems


Structure of NAS Battery Cell

➢ Abundant material, Sodium and Sulfur. are used for active material of NAS Battery.

➢ Beta Alumina Ceramic Tube is the key part of NAS Battery.

Beta Alumina Ceramic

2Na + xS Na2Sx

NegativeElectrode

Solid Electrolytes（Beta Alumina)

PositiveElectrode

－＋

DischargeNA2Sx

SulfurCharge

Load

NaNa+

Discharge

Charge

Power source

Sodium (Na)

Beta Alumina

Ceramic

Sulfur(S)

Cell Structure Chemical Reaction


Structure of NAS Battery System

192 Battery

Cells Thermally

Insulated LidFuse

Heater

Main Pole

Sand

Battery Module

+ terminal - terminal

+ Pole（Sulfur）

Safety Tube- Pole（Sodium）

Solid

Electrolyte

(Beta alumina)

Battery Cell

Battery Container (200kW, 1200kWh)

( ()200(200kW,1200kWh)

6 NAS Battery Modules

Battery System (800kW, 4800kWh)

(800kW,4800kWh)

Controller20ft

Container

Containerized NAS Battery

Units

(800kW)

Power Conversion

System

Fan/

Radiant Heat Duct

➢ Containerized system minimize the transportation and installation cost.

➢ NAS battery can be used at high temperature area because inside of Battery Module

is high temperature.

➢ NAS Battery can be recycled after the end of battery life.


Features of NAS Battery Energy Storage

➢ Long Duration

・Can store energy up to 6 hours

➢ Compact Layout

・3 times energy density compared to lead acid battery

➢ Fast Response

・Prompt response – full power charge to discharge in 2 milliseconds

➢ High level of reliability

・Uses ceramic for electrolyte. No self discharge, superior long term durability

➢ High level of safety

・Multiple safety features and quality control incorporated to ensure safety

➢ Easy to install and relocating

・“Plug & Play” Containerized NAS Battery is available

➢ Easy Maintenance

・Minimal planned maintenance required. Remote operation


NAS Battery Installations Around the World

➢ Outstanding supply record in Large Scale Battery Energy Storage

Total Installation Record of 560MW(4,000MWh)

➢ Annual Production Capacity 150MW(1GWh)

California7MW

New York1MWWest Virginia

7MW

Reunion Island(FR) 1MW

Texas4MWAbu Dhabi

108MW

Germany4.8MW

Minnesota1MW

Germany１ＭＷ

Canada1MW

New Mexico1MW

Italy35MW

Japan390MW

Peak Shift

Renewable, Grid Stabilization

Frequency control

Microgrid


Various applications of NAS Battery System

離島・スマートグリッド

発電所

Main Grid System

Distribution

System

Commercial

Complex

Factory

School

Wastewater

Treatment

Plant

Laboratory

Distribution

System

Wind Power

Solar

Substation

Substation風力発電

Solar

Wind Power

Generator Scheduling Supply

（Output Stabilization）

Absorb Excess EnergyMitigation of transmission Congestion

Peak ShiftingStrengthen Energy Security（EPS,Countermeasure to Instantaneous

Voltage Drop）

➢ NAS Batteries are used at renewable generation site, transmission line, substation and

behind the meter (consumer).

➢ NAS Battery is useful for energy time shifting, stabilizing renewable energy, adjusting

demand & supply and backup power supply.

Large-scale Renewable Energy PlantLarge-scale

Power Plant

Distribution

SystemSolar

Wind Power

Transmission System

Small Distribution Network(Off-grid, Islands)


Wind Power Stabilization and Energy Time Shift – Rokkasho

Rokkasho Futamata Wind Farm in Japan

Wind turbine 51MW

NAS battery 34MW (224MWh)

NAS Battery PCS Building Control Building

Time

➢ NAS Battery absorb the fluctuation of output power from wind generator and

time-shift the energy.

Pow

er

MW

Pow

er

MW

Rokkasho


Wind Power Stabilization – Xcel Energy

(Courtesy of Xcel Energy)

➢ NAS Battery absorbs the fluctuation of output power from wind generator.

➢ The combined power from wind generator and NAS Battery is constant in 30

minutes time block.

←C

har

ge

Dis

ch

arg

e→

Po

we

r k

W

Wind

Delivered

NAS

power

-1200

-800

-400

0

400

800

1200

9:3

0

10

:00

10

:30

11

:00

11

:30

12

:00

12

:30

13

:00

13

:30

14

:00

14

:30

15

:00

15

:30

16

:00

NAS Battery system for Xcel Energy

(1MW, COD 2008)Example of Leveling Wind Power

(Courtesy of Xcel Energy)

Luverne, MN


Solar Power Stabilization and Energy Time Shift – Wakkanai

➢ NAS Battery absorb the fluctuation of output power from PV and time-shift the

energy.

Financed by NEDO

(New Energy and Industrial Technology Development Organization)

PV: 5MW

NAS Battery: 1.5MW

Example of Operation pattern

Wakkanai

Time

Output (kW)


Solar Energy Time Shift – Buzen, Kyushu

Demand

Solargeneration

Discharge

Charge

■ Start of Operation March 3, 2016■Improving Demand-and-Supply balance of solar

generation using large capacity energy storage.

Non-Solar Generation

Discharge during nighttime

➢ Planned PV connections to the grid were suspended due to over-generation problem.

The government of Japan decided to install large scale battery in a short project

schedule.

➢ NAS battery (50MW/300MWh) was successfully deployed only in 10 months after order.

Store excess electricityfrom daytime.

Buzen, Kyushu


Solar Power Stabilization – Los Alamos

➢ Fluctuation of “Load & PV power” is leveled by NAS Battery.

➢ Output power of NAS Battery is controlled by EMS to level “Power Flow at Tie-

Line” (connecting point of the internal feeder and the external power grid).

2013/7/15-1,000

-750

-500

-250

0

250

500

750

1,000

1,250

1,500

1,750

2,000

2,250

2,500

2,750

3,000

3,250

3,500

3,750

4,000

4,250

4,500

4,750

5,000

6:00 9:00 12:00 15:00 18:00

Pow

er

[kW

]

Total Load [kW]

PV-P [kW]

NAS-P_1 [kW]

LAB-P [kW]

Load-PV

Load-PV-Battery

-1,000

-750

-500

-250

0

250

500

750

1,000

1,250

1,500

1,750

2,000

2,250

2,500

2,750

3,000

3,250

3,500

3,750

4,000

4,250

4,500

4,750

5,000

6:00 9:00 12:00 15:00 18:00

Pow

er

[kW

]

Total Load [kW]

PV-P [kW]

NAS-P_1 [kW]

LAB-P [kW]

Load-PV

Load-PV-Battery

Power Flow at Tie-line

(Load & PV & NAS Battery)

Load & PV Power Load

NAS Battery PV

Pow

er

[kW

]P

ow

er

[kW

]

Los Alamos, NM

NAS Battery system for Los Alamos

(1MW, COD 2013)

Financed by NEDO (New Energy and Industrial Technology Development Organization)


Frequency Control and Energy Time Shift – Miyako

ＮＡＳ Battery４ＭＷ（２８．８ＭＷh）

PV４ＭＷWind ９００ｋＷ

➢ NAS Battery stabilizes grid frequency in remote island.

➢ NAS Battery also shifts energy and absorbs surplus PV output during daytime.

http://www.okiden.co.jp/environment/report2014/sec7/sec74.html

Miyako Island

NAS Battery


Hybrid Battery System - Oki

➢ Hybrid system of 4.2MW NAS battery and 2MW Lithium-ion battery enables to install

additional 8MW of renewable energy.

➢ Even though NAS battery can absorb both long and small fluctuation caused by solar

and wind power, the hybrid system is also an effective solution in some cases.

Size of Oki Islands:346KM2

Population:25,000 people

Wind Farm

1,800kW Hydro

100kW

Diesel

Hydro

200kWDiesel

Mega PV

3,000kW

New

Wind

2,000kW

New Mega PV

2,000kW

New

Roof top Solar

500kW

4.2MW of NAS® Battery System

2MW of LiB System

Oki


Summary

1. NAS Battery is reliable and effective battery to store large amounts of

electric energy by using well-established ceramic technology.

2. NAS Battery is systematically integrated in ocean container. It is easy

to install, operate and maintenance.

3. The capability and durability of NAS Battery are proven by abundant

field experiences.

4. By integrating NAS Battery and renewable energy power sources,

stable, clean and low cost power can be supplied.


NGK INSULATORS, LTD.

NAS Battery Division, Power Business Group

2-56 Suda-cho, Mizuho, Nagoya, 467-8530 JAPAN

Tel +81-(0)52-872-7515 Fax +81-(0)52-872-8862

https://www.ngk.co.jp/nas/

nas® batteries for technical challenges with …...2013/07/15 · nas battery absorbs the...

Documents