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1. The latest green(Low emission) Buildings and
technologies, in Japan
Feb.21st. 2012.
Yasuo Miyazaki
Managing Officer
Shimizu Corporation
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2. Agenda
１．The changed requirements for green building by the Great East
Japan earthquake on 3.11, 2011.
２．The latest green buildings in Tokyo.
３．The latest technologies for green building and community.
４．Disaster-Resistant and eco-friendly society - from building to community
(C)Copyright 2012 Shimizu Corporation. All rights reserved. 1

3. １．The changed requirements for green building by the earthquake on 3.11, 2011.
■ Summary of Damage caused by the 3.11 Earthquake
Complex Damage New Required Countermeasures
• buildings complied with earlier quakeproof standards
 The Great East Japan Earthquake of
Massive • non-structural parts and materials (e.g,.
March 11, 2011, and its aftermath exhibited earthquake ceilings, walls, facility pipes, and machinery)
the following: (Magnitude
• liquefaction
9.0, connecting six • long-period seismic tremors
(1) Massive 9.0-magnitude earthquake hypo-central regions)
Construction/civil-
connecting six hypo-central regions engineering
(2) Unprecedented massive tsunami
• Hardware: Breakwaters, tide embankments
(3) Damage to nuclear power plants resulting Tsunami • Software: Safe evacuation locations (elevated ground and
shelter buildings) and evacuation training/drills
in power shortages (Max. height more
than 15 m)
 Future facilities and communities will seek Energy
to ensure a basic performance Power shortages
• Power-saving in ordinary times (eco)
that is grounded on new ways of thinking. (Damage to nuclear • Self-supporting energy system in the event of emergencies
power plants) (BCP)
• Improving nuclear power plant safety
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4. １．The changed requirements for green building by the earthquake on 3.11, 2011.
■Today’s needs for green building
Ordinary Times Emergency Time
eco BCP
(Low emission)
ＱＯＬ Energy saving Countermeasures
LIFE &BUSINESS
with personal against massive
Before 3.11 Quality of life comfort earthquakes and DEFENSE
Tsunami
eco BCP
ＳＭＡＲＴ ＥＮＥＲＧＹ ＭＡＮＡＧＥＭＥＮＴ
Electric Self-
Ｅｎｅｒｇｙ power supporting ENERGY
After 3.11 Electric power saving energy INDEPENDENCE
(kw and system
kwh)
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5. ２．The latest green buildings in Tokyo.
■Shimizu Head Office (eco + BCP)
■ECO（energy saving with comfortable） ■BCP Earthquake level
2012 ▲50％ ～55% for countermeasure
2015 ▲60％ ～65%
Original : (M7.3)
Hybrid exterior panels ▲4％ Revised : (M9.0)
Eco-friendly external panels integrate the Protect building
following functional elements:
• Building structural frame • Seismic Isolation system
• Solar panels
• Seismic panels
Keep building functions
Task and ambient air conditioning ▲12％
• power: Micro-grid
Integrated control of the following systems creates comfortable • water: 3days storage tank
room environments: •sewerage: 3days storage tank
• Ambient air conditioning (full-surface radiant ceiling panels) •communication system: wireless
• Humidity control air conditioning (desiccant air conditioners) system
• Task air conditioning (personal floor vents)
Task and ambient lighting ▲17％ For unable to return home people
Tapping the following alternatives will cut CO2 dramatically: • Keep space (4000 Persons)
• Sunlight (solar panels, use of daylight) • Storage: food /water /temporally toilet
• Optimal controls (automatic sensor-based /banquet /small generator /shower
adjustments, on/off controls) /bicycles /etc.
• Higher efficiency (LED lighting)
Carbon-half building ■Energy management with Micro Grid system ▲2％
Shimizu’s new head office
(Scheduled for completion Techniques and technologies to reduce CO2 emissions, and power saving and energy independence.
in Summer 2012) • renewable energy(PV) and battery(Micro-Grid)
• Optimal equipment controls based on load forecasts
• Demand response controls
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6. ２．The latest green buildings in Tokyo. - Shimizu Head Office -
■Hybrid exterior panels ▲4％
Solar Canopy (horizontal, vertical)
Solar panels
Low-E double-glazed ceiling
glass solar panel
shading Rib gradation blind
600
Seismic panels
Low-E
double-glazed
floor
Structure glass
(exterior) 900
Northwest Northeast Southwest Southeast
thin-film solar panels polycrystalline solar panels 2,000 ㎡ Solar Panels (PV)
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7. ２．The latest green buildings in Tokyo. - Shimizu Head Office -
■Task & Ambient HVAC ▲12％
Ambient Air Conditioning - Low Carbon and Comfortable
Temperature
by Radiant Ceiling Panel
- Improvement of Workplace Productivity
Humidity
Humidity Conditioning
- Effective use of city waste heat
Air quality by Desiccant - Higher efficiency of DHC system
Dehumidifier
Comfortable Task Air-Conditioning
Chiller
Exhaust heat
Workplace Air Flow by Personal Spot DHC Hot water
Diffuser Other
Chilled water (supply)
Cold water (return)
customers
Hybrid Radiation Panels Radiation Ceiling Panels
Cold water (extreme
temperature difference)
Personal Spot Diffuser
Conditioned air Dehumidification
Heater
Drying-Out.
Desiccant Desiccant
Dehumidifier Air-Cond.
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8. ２．The latest green buildings in Tokyo. - Shimizu Head Office -
■Task & Ambient LED Lighting system ▲17％
Task & Ambient Lighting: LED lighting control by illumination sensors
and human-motion sensors
Daylighting: Gradation Blind and Shading Rib
Ambient Lighting (5W/m2) Daylighting Daylighting LED Lighting
Task Lighting (2W/m2) Daylighting LED Lighting LED Lighting
Daylight
Shading Rib
Office
事務室
Gradation blind
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9. ２．The latest green buildings in Tokyo. - Shimizu Head Office -
■Micro-Grid system ■Shimizu’s CO2 reduction scenario
 Installed at Shimizu’s New Head Office & result in Head Office
• 2000 m2 of solar panels installed
... 150-kW Micro-Grid combining solar power generation and
storage batteries
• Leveling the power draw
... Reducing peak power use by storing electricity at
night, drawing power from batteries, and combining the use
of solar power during daylight hours
Micro-Grid system battery
Solar power generation
Nighttime Daytime
Charging storage batteries Cutting contracted
using low-cost nighttime electric power use
power
Electric company New Head Office
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10. ３．The latest technologies for green building and community.
■Personal environment control - energy saving -
・When a person carrying ID Tag to be designate in the barrier space, HAVC & Lighting will be
controlled depending on the personal’s preference record in ID Tag
・In this summer; Lighting energy consumption was decreased 76% from last year
individual light ON Individual light ON individual light OFF
(Preference illumination) (Preference illumination)
ID Tag carrying by
person Control Barrier line
Personal task space
No existing
Stop
Personal diffuser
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11. ３．The latest technologies for green building and community.
■Demand response & Thermal storage and battery – electric Power peak shift & cut -
・In this summer: Peak reduced by 37%, Consumption reduced by 6% (Shimizu Institute of Technology)
Power peak shift : Load predicting 2011 Summer: power shifted peak 2010 Summer(August): power peak
control system Power
・Accuracy power load to be predicted
depending on the weather forecast, etc. Thermal
・Thermal storage and Batteries are controlled Consumption
Chiller
based on the predicted load to shift and down operation
Storage
the power peak
2011 Summer storage amount 2010 Summer storage amount
under Predicting control
Power peak cut : Demand response
control system
・In the event of further power supply
shortage, specified HAVC machines to be Air conditioning
area A
Air Air Air Air
conditioning conditioning conditioning conditioning
area B area A area B area A
stopped depending on the pre-study Air Air Air Air
Air conditioning
schedule, to cut the power peak. area B
conditioning conditioning conditioning conditioning
area A area B area A area B
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12. ３．The latest technologies for green building and community.
■Micro-Grid system for power saving and energy independency
 Summer of 2011: Cut peak use by 36% and total use by 30%
Power savings at 12 experimental facility buildings at the Shimizu Institute of Technology, assuming a small community in
the city
 Energy independence: Demonstration featuring 72 hours of continuous and independent
operation
 Reducing renewable energy fluctuation impact to the power grid
A small-scale energy supply system that provides optimal supply of electricity and heat to multiple
Micro-Grid buildings through automatic controls of multiple power- generation units including renewable energy
sources and batteries,
Integrated control system
Waste-heat use
Waste-heat
recovery
Gas engine Waste-heat
３５０ kW absorption chiller
Generation
Gas engine ９０ kW
Nickel hydride battery
Storage
１００ kW (８０ kWh) Heat storage
Double-layer capacitor Thermal-
Storage
Heat-pump chiller storage
１００ kW x ± ２ sec tank
Renewable Solar power Chilled water
energy
１０ kW
Commercial Purchased power
grid
Flow of power Flow of heat Experimental buildings
[Supplying electricity and heat to 12 experimental facility buildings at the Shimizu Institute of Technology]
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13. ３．The latest technologies for green building and community.
■Micro Grid System : Reducing the impacts from power demand and renewable
energy generation on the power grid
●Micro Grid System : energy efficiency generated ●Micro Grid System in China, completer in 2010
power quality
●energy efficiency generated and power quality ●Shimizu institute of technology
■Efficiency
・Primary Energy consumption ▲10.3％
・Summer：total efficiency 49％
(heat recovery 22% of cooling load)
・Winter ：total efficiency 66％
(heat recovery 65% of heating load)
■Emission
・ＣＯ2Emission： ▲10.5％
■Frequency
・50±0.1[Hz]
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14. ４．Disaster-Resistant and eco-friendly society - from building to community -
■ eco: energy conservation, independence, power saving
BCP: countermeasure against earthquake and Tsunami
●Building level ●Community level ●City level
(Smart building) (Smart community) (Smart city)
Core Building
（eco + BCP)
Power
・
station
thermal
・
Hydroelectric nuclear
eco + BCP Building Energy Supply Center power station
Core Building
PV
: Energy conservation with comfortable
: Electric power saving Wind
: Countermeasures against earthquakes and Tsunami
: Energy independence
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15. (C)Copyright 2012 Shimizu Corporation. All rights reserved. 14