Shimizu’s approach to building
resilient and smart cities
October 29, 2015
Masaya Tachibana

Approach: The “ecoBCP“ concept core competence for sustainability
Low Carbon/Wellness (eco) + Business Continuity/Energy Independence (BCP)
Applying energy conservation measures during normal times to build facilities and communities,
while assuring business continuity and energy independence in the event of an emergency.
Normal times

Emergency

Energy Conscious
Comfort/Wellness

Earthquake/
TsunamiCountermeasures

Peak Shaving/
DemandResponseSecuring
Energy Supply

Comfort, health,safety, securityEnergy measures

Resilient and smart cities© 2015

Approach: ecoBCP urban regeneration
Staged “ecoBCP” solutions from facility-level to district-level and area-level.
Increasing community value and competitiveness by enhancing “ecoBCP”.
Enhancing “ecoBCP” ofdisaster prevention facilities

District-wide energy utilization

Area-wide “ecoBCP” management① Facility level② District level③ Area level● Energy conservation and theimprovement of QOL during
normal times● Securing energy supply during
emergency● Utilizing district
heating/cooling/power supply● Accommodating those unableto return home in the event ofan emergency● Area energy management● Area business/life continuity
management

Photovoltaic Distributed
generation Generator
systemDisasterprevention
facilities
Large officebuildings
Public facilities
Hospitals
Schools
Parks, railwaystations

Information

Co-generation

Autonomous
disasterprevention
facility
Area
management
centerHeat
Electricity
storage

BC: Business Continuity
LC: Life Continuity

Electricity

Gridpower

Gridpower

DC: District Continuity

CC: Community Continuity© 2015

Kyobashi Smart Community
ecoBCP management and enhancing community value and competitiveness in the area aroundShimizu’s head office.
A high-performance, eco-friendly, anddisaster prevention facility

District-wide high-efficiency energyutilization

Area-wide “ecoBCP” management① Facility level② District level③ Area level● A high-performance, eco-friendly
office building● Accommodating those unable toreturn home in a disaster● District heating/cooling, effective
use of waste heat
● Mutual exchange of supplies in theevent of an emergency● Area energy management● Area business/life continuity
management●CASBEE: rank S
BEE score: 9.7 pts.
(highest score ever)●DHC system: comprehensive energy
efficiency rate of 1.39
(most efficient in Japan)● ISO 22301 (Business Continuity)● ISO 50001 (Energy Management)(certified as the first area-wide cases inJapan)●Community disaster prevention
facility: Accommodates
4,000,employees andothers unable toreturn home.

Kyobashi
1-chome/2-chome
DHC area(4.8 ha)Shimizu’s
head officeShimizu’s
head officePlanned area

Shimizu’s
head office

DHC areaecoBCP building

DHC

Kyobashi Smart Community© Google© Google© 2014

4Kyobashi smart community

Shimizu’s head office: an ecoBCP model building
Location:

Chuo City, Tokyo

Completed:May 2012

Site area:

3,000 m2

Building area:
2,200 m2
Total floor
area:

51,800 m2

Floors:3 underground levels,
22 above ground levels,
one penthouse

Height:110 m

Structure:

Reinforced concrete (partialsteel frame)
Seismic isolation structure

CASBEE:S Rank (BEE = 9.7; highest
score ever achieved)

LEED:

NC Gold

CO2
emissions:

Reduced 61% in 2013
(compared to the average ofgeneral office buildings inTokyo, 2005)© 2014

5

Shimizu Head Office● CASBEE: S Rank (BEE = 9.7; highest score ever achieved).
● LEED: NC Gold
● Reduction of CO2 emissions: 58% in 2013 compared to office buildings in Tokyo, 2005.
● Hybrid exterior panel system/task & ambient system/all IP building system.
● Community disaster prevention facility.

Shading effectSeismic panels

Low-E double-glazed glass

Exterior thermal insulation
Solar panels© 2015

Shimizu Head Office● Community disaster prevention facility accommodating 2,000 employees and up to 2,000 others
unable to return home in the event of an emergency.
● Reception rooms accommodate those requiring assistance, including the elderly, the disabled,
expectant mothers, overseas visitors, and the sick or injured.

Seismic Isolation

Oil Damper© 2015

Shimizu’s head office

Task and ambient air-conditioning system● Power reduction of approximately 50% compared tostandard air-conditioning system.
● Comfort and low-carbon performance, improved intellectual
productivity.
Hybrid radiant panels

Tri-layered aluminum tubing

Perforated aluminum panel

Radiant ceiling panels

Fin-shaped radiant panels serving areas nearwindows where heat loads are high.

Supply of chilled water from district heating/cooling facilityOfficeHumidity-controlled air from desiccant air conditioner

Personal floor vents

OpenClosed

Sliding controls allow workers to adjust airflows to suit personal preference.
© 2014

Shimizu’s head office

Task and ambient LED lighting system● Power reduction of approximately 90% compared to standard lighting system.
Sensor-controlled ambient lighting brightness automatically adjusts to available natural light.

Ambient lighting
Task lighting

Use of daylightLighting

Use of daylightLighting

Interior lighting deliberately set to achieve
Ambient lighting
dimmer lighting levels.

SunlightOfficeGradation blinds
Angle of blinds adjusts to match the position of the sun.

Task lighting
Bright and targeted lighting for individual desks.
© 2014

Shimizu’s head officeEffective utilization of waste heat by connecting with DHC plant
Supply7⁰C

DISTRICT HEATING/COOLING PLANT

Return14⁰C

DISTRICTRADIANT AIR-CONDITIONING SYSTEM

Supply14⁰C

Water 16⁰C - 18⁰C

Return19⁰C
Air
PERSONAL CLIMATE CONTROL

Heat/ColdCoil
SupplyAir
ReturnAir

Exhaust Heat
DesiccantRotary Wheel

Fresh
Air
DesiccantRotary Wheel

SHIMIZU’S HEAD OFFICE

D ES I C C A N T D E H U M I D I F I C AT I O N SYST E M© 20149Smart Solutions Company