the latest greenbuildings and technologies in japan

(C)Copyright 2012 Shimizu Corporation. All rights reserved.

The latest green(Low emission) Buildings and technologies, in Japan

Feb.21st. 2012.

Yasuo Miyazaki

Managing Officer

Shimizu Corporation

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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 -

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■ Summary of Damage caused by the 3.11 Earthquake

１． The changed requirements for green building by the earthquake on 3.11, 2011.

The Great East Japan Earthquake of March 11, 2011, and its aftermath exhibited the following:

(1) Massive 9.0-magnitude earthquake connecting six hypo-central regions

(2) Unprecedented massive tsunami

(3) Damage to nuclear power plants resulting in power shortages

Future facilities and communities will seek

to ensure a basic performance

that is grounded on new ways of thinking.

Complex Damage

• buildings complied with earlier quakeproof standards • non-structural parts and materials (e.g,. ceilings, walls,

facility pipes, and machinery)• liquefaction• long-period seismic tremors

• Hardware: Breakwaters, tide embankments• Software: Safe evacuation locations (elevated ground and

shelter buildings) and evacuation training/drills

• Power-saving in ordinary times (eco) • Self-supporting energy system in the event of

emergencies (BCP) • Improving nuclear power plant safety

Massive earthquake

(Magnitude 9.0, connecting six

hypo-central regions)

Tsunami

(Max. height more than 15 m)

Power shortages

(Damage to nuclear power plants)

Construction/civil-engineering

Energy

New Required Countermeasures

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ＱＯＬQuality of life

eco(Low emission)

Ordinary Times

BCPEmergency Time

LIFE &BUSINESSDEFENSE

Energy saving with personal

comfort

Energy saving with personal

comfort

Countermeasures against earthquakes

Countermeasures against earthquakes Before 3.11

■Today’s needs for green building

１． The changed requirements for green building by the earthquake on 3.11, 2011.

ＥｎｅｒｇｙElectric power

ENERGYINDEPENDENCE

Electric power saving(kw and

kwh)

Electric power saving(kw and

kwh)

Self-supporting

energy system

Self-supporting

energy system

After 3.11

massive andTsunami

massive andTsunami

eco BCPＳＭＡＲＴ　ＥＮＥＲＧＹ　ＭＡＮＡＧＥＭＥＮＴ

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■ECO （ energy saving with comfortable ）　　　 2012 　▲ 50 ％～ 55%　　 2015 　▲ 60 ％～ 65%

■BCP Earthquake level for countermeasure Original : (M7.3) Revised : (M9.0)

Carbon-half building Shimizu’s new head office(Scheduled for completion

in Summer 2012)

Hybrid exterior panels ▲4 ％ Eco-friendly external panels integrate the following functional elements: • Building structural frame • Solar panels • Seismic panels

Task and ambient air conditioning 　▲ 12 ％ Integrated control of the following systems creates comfortable room environments: • Ambient air conditioning (full-surface radiant ceiling panels)• Humidity control air conditioning (desiccant air conditioners)• Task air conditioning (personal floor vents)

■Energy management with Micro Grid system 　▲ 2 ％ Techniques and technologies to reduce CO2 emissions, and power saving and energy independence.• renewable energy(PV) and battery(Micro-Grid)• Optimal equipment controls based on load forecasts• Demand response controls

Task and ambient lighting 　 ▲ 17 ％ Tapping the following alternatives will cut CO2 dramatically: • Sunlight (solar panels, use of daylight) • Optimal controls (automatic sensor-based adjustments,

on/off controls)• Higher efficiency (LED lighting)

■Shimizu Head Office (eco + BCP)

Protect building • Seismic Isolation system

Keep building functions • power: Micro-grid• water: 3days storage tank•sewerage: 3days storage tank•communication system: wireless system

For unable to return home people• Keep space (4000 Persons)• Storage: food /water /temporally toilet /banquet /small generator /shower /bicycles /etc.

２． The latest green buildings in Tokyo.

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thin-film solar panels

Solar panels

Low-E double-glazed glass

Seismic panels

Structure(exterior)

■Hybrid exterior panels 　　▲ 4 ％

polycrystalline solar panels

Solar Canopy (horizontal, vertical)

shading Rib gradation blind

Low-E double-glazed glass

600

900

solar panel

２． The latest green buildings in Tokyo. - Shimizu Head Office -

floor

Northwest Northeast Southwest Southeast

2,000 ㎡ Solar Panels (PV)

ceiling

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Ambient Air Conditioningby Radiant Ceiling Panel

Task Air-Conditioningby Personal Spot Diffuser

Humidity Conditioningby Desiccant Dehumidifier

ComfortableWorkplace

Temperature

HumidityAir quality

Air Flow

室内

- Low Carbon and Comfortable- Improvement of Workplace Productivity

DHCChillerExhaust heat Hot water

Cold water (extreme temperature difference)

Chilled water (supply)

Cold water (return) Other customers

デシカントローター

湿気を吸着

再生用加熱器

温風で再生

DesiccantDehumidifier

Conditioned air

Radiation Ceiling Panels

Personal Spot Diffuser

- Effective use of city waste heat - Higher efficiency of DHC system

Hybrid Radiation Panels

Drying-Out.

Dehumidification

Desiccant Air-Cond.

Heater

■Task & Ambient HVAC 　　▲ 12 ％


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事務室

Task & Ambient Lighting: LED lighting control by illumination sensors

　　　　　　　　　　　　　　　　　　 and human-motion sensors

Daylighting: 　　 Gradation Blind and Shading Rib

Daylighting Daylighting LED Lighting

Daylighting LED Lighting LED Lighting

Gradation blind

Shading Rib

Daylight

Ambient Lighting (5W/m2)

Task Lighting (2W/m2)

Office

■Task & Ambient LED Lighting system 　　▲ 17 ％


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■Micro-Grid system 　　 ■Shimizu’s CO2 reduction scenario & result in Head OfficeInstalled at Shimizu’s New 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

Nighttime Charging storage batteries using low-cost nighttime power

New Head Office

battery

Electric company

Solar power generation Daytime

Cutting contracted electric power use

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■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 (Preference illumination)

Individual light ON (Preference illumination)

individual light OFF

ID Tag carrying by person

Personal task spaceControl Barrier line

Personal diffuser

No existing

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Stop


■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 control system

・ Accuracy power load to be predicted depending on the weather forecast, etc.

・ Thermal storage and Batteries are controlled based on the predicted load to shift and down the power peak

Power peak cut : Demand response control system

・ In the event of further power supply shortage, specified HAVC machines to be stopped depending on the pre-study schedule, to cut the power peak.


Thermal Consumption

Storage

Chiller operation

2011 Summer storage amount under Predicting control

2010 Summer storage amount

2011 Summer: power shifted peak 2010 Summer(August): power peak

Power

Air conditioning area B

Air conditioning area A









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A small-scale energy supply system that provides optimal supply of electricity and heat to multiple buildings through automatic controls of multiple power- generation units including renewable energy sources and batteries,

Micro-Grid

[Supplying electricity and heat to 12 experimental facility buildings at the Shimizu Institute of Technology]

Purchased power

Waste-heat use

Gas engine ３５０ kWGas engine ９０ kW

Solar power

１０ kW

Double-layer capacitor

１００ kW x ± ２ sec

Nickel hydride battery

１００ kW ( ８０ kWh)

Integrated control system

Waste-heat recovery

Chilled water

Heat storage

Flow of power Flow of heat

Generation

Storage

Storage

Renewable energy

Experimental buildings

Heat-pump chiller Thermal-storage

tank

Commercial grid

Waste-heat absorption chiller

■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


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■Micro Grid System : Reducing the impacts from power demand and renewable energy generation on the power grid

●energy efficiency generated 　 and power quality

■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 　・ＣＯ 2Emission ： ▲ 10.5 ％

■Frequency 　・ 50±0.1[Hz]


●Micro Grid System : energy efficiency generated 　 power quality

●Shimizu institute of technology

●Micro Grid System in China, completer in 2010

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●Building level(Smart building)

●Community level(Smart community)

●City level(Smart city)

Power station

Hydroelectric power station

PV

Wind

・thermal

・nuclear

■ eco: energy conservation, independence, power saving BCP: countermeasure against earthquake and Tsunami

４． Disaster-Resistant and eco-friendly society - from building to community -

Core Building （ ec

o + BCP)

eco + BCPCore Building

Building Energy Supply Center

: Energy conservation with comfortable: Energy conservation with comfortable

: Electric power saving: Electric power saving

: Energy independence: Energy independence

: Countermeasures against earthquakes and Tsunami: Countermeasures against earthquakes and Tsunami

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the latest greenbuildings and technologies in japan

Technology

latest green buildings

solar panels pvccopyright

shimizu head office

building functions task

persons sunlight solar

ecofriendly external

ambient lighting

power shortagesmax