Transcript Panel on Adopting DC Power for Buildings(Keiichi

Panel on DC Power for Buildings
Keiichi Hirose, Ph.D.
NTT Facilities, INC. Japan
IEEE EnergyTech Conference
The Case Western Reserve University,
Cleveland, Ohio
May 31, 2012
History of 380VDC power promotion for data centers
Step1
Research & development
2005-2008
NEDO Sendai
Microgrid Demo
2
Step3
Step2
Field demonstration Commercial services
2007 Dec.
DC Microgrid Demo
With 380 VDC servers
2006 June
JANOG Panel
discussion
Note :
JANOG: Japan Network Operators Group
2009
100 kW, 380 VDC
Demos in Tokyo
2011 Feb.
Commercial Service
2008 June
NTT News release With 380 VDC
“Use of DC power for
Data centers in NTT”
DC Power Demonstrations by NTT Facilities
3
Module data center in wind farm
NTT Data Corp.
NTT Facilities
NTT EAST
*
Sapporo
Sendai
NEDO Project
300VDC Demo
NTT Musashino lab.
Fukuoka
NTT Atsugi lab.
*
: The demonstration was supported
by Ministry of Internal Affairs and
Communications, Japan in 2010.
Osaka
Aichi
380VDC Microgird
In university campus
Tokyo Metropolitan
100 KW x 5 sites
Next step for advanced DC power system
Central
offices
Telecommunications
Fusion, since 2000
Data
centers
Residential,
commercial
buildings
Computer
(Information)
Next step
Electric appliances
Distributed Energy Sources
DC
power
New Project FY2012-2015
Smart community project by
DC power distribution for
commercial and residential
buildings
Obihiro city,
Hokkaido
Yamagata city
Tokyo
This project is supported
by the Ministry of
Environment, Japan.
Purpose of the project
• Distributed autonomous system with DC
power integration
• Development of
–
–
–
–
High-efficient energy system
Energy interchange system
Disaster prevention function(s)
Business model
• Demonstraion in 2 sites (Yamagata, Obihiro)
• Feasebility study
Office building zone
Energy center
PV panels
Commercial
building zone
Commercial
building zone
Power node
Demonstration area in Yamagata city
(Draft)
Residential zone
(4 houses)