Kajima Akasaka Annex of Corporation Bu ilding overvi ew Location: Minato-ku, Start of constr.: July 2005 Completion: July 2007 Building type: Office and rental apartments structure SRC Total floor area: 33,517 m2 Scale: 15-story structure

Concept and outline of environmentally sustainable design 1.Flexibility Task ● ”Eco-module” to provide illumination and air conditioning systemタスク系統 line Hybrid sensor where humans are present Temperature Illuminance ● Optimum coordination control among solar radiation control, Composite複合センサ タスクTask アンビエントAmbient Human detection sensor温度 吹出口outlet 吹出口outlet Temperature照度 climate control, and illumination Illuminance人感 Human ● Task and ambient AC available for general-purposed detection Ambient system application with multiple building air conditioners lineアンビエント系統 ● VibliVariable air-currenttlt”Uit outlet, ”Universa lCft”hihl Comfort,” which Outside外気 air provides soft personal air current Wireless remote thermostat Task and ambient air conditioning system 2.Sustainability Measurement外気条件 of 計測 outside air conditions ● Building exterior design with high-performance glass and 指向性Area Diffused拡散 Diffused拡散 住宅フロアResidential floor oriented気流 air air気流 current air気流 current energy conservation Stairwell階段室 current ● Hybrid AC coupled with natural ventilation in stairwells Mode好みに to応 generateじた気流 を Mode気流 をwithout 感じない air preferred感じさせるモード air current currentモード 切替 ● ”B and OA Net System” integrating BA and OA networks 事務室Office事 Switch 務 Primary energy consumptions from September 2007 to August 2008 OtidO外気導utside a入i iitkr in口take Average data by Natural ventilation Building本建物実績値 record 1568 自然換気システム “Universal Comfort” (task outlet) building use: from system FY2007 Energy オ フ ィ ス 平均 205 2 Consumptions of Office average Buildings Survey Report by The Building-Energy CASBEE: Rank S; certified (BEE = 3.3) 0 500 1000 1500 2000 2500 Manager’s Association 2 Primary一次エネルギー消費量[MJ/(m energy consumptions [MJ/(m・年)] 2・year)] of (complex use: office 4.0, residential 2.2) 0 “Techno Station” of Technical Research Institute of Bu ilding overvi ew

Location: Kiyose City, Tokyo Start of constr.: November 2009 Completion: September 2010 Building type: Research institute (office) Structure: Steel construction Total floor area: 5,535 m2 Scale: 3FL

Concept and outline of environmentally sustainable design Core base of intellectual creation which has attained both Passive systems Active systems Management system Latent and sensible heat- Eco-roof system Natural ventilation system Thermal heat-using heat CO mitigation tasks Visualization system separate personal radiant 2 pump system assistance system through • Daylight-using skylight • Natural ventilation of new air-conditioning Well water hybrid system natural ventilation in office productivity increase and CO reduction • UfUse of was thtdte heat and lffilarge office space system 2 heated air • Photovoltaic power Natural water-using system Hot and cold recycled water New lighting and air generation • Use of stormwater and (latent heat) storage conditioning control using 1) Passive systems: reduction of loads “Peri-buffer” (perimeter well water system IC tags zone) system • Solar radiation suppression • High-efficiency heat pump module chiller • BEMS-based optimum management Eco-room system, “Peri-buffer” (perimeter zone) system, Natural ventilation and buffer air conditioning • Use of water-based heat storage • Feedback from commissioning • Wind power generation • Great t emperat ure diff eren tia l wa ter supp ly • CO2 mitiga tion tech no log ies system, natural water use system • Wet paving of external area (water spraying • Outside air cooling showroom/transmission of information system) • LED lighting, CO2 control, variable air volume • Deployment of CO2 mitigation technologies • Cool warm pit control • Environmental education activities, etc. 2) Active systems: CO2 mitigation by applying new • Solar heat-using hot water service • Use of cogeneration heat • Use of geo heat, etc. • New-type storage battery system, etc. ■ Low-rise building configuration to generate less technologies conveyance energy New system ■ North-south flat plane plan to admit prevailing Latent and sensible heat-separate personal radiant new air-conditioning system, wind into building Thermal heat-using heat pump system, Well water hybrid system, hot and cold recycled water latent heat storage system, New lighting and air conditioning South North control using IC tags Office Auditorium and 3) Management system (operation): CO2 reduction showroom through operation management BEMS-based optimum management and feedback from commissioning Typical office building 4) Management system (environmental tasks): CO2 Carbon credit equivalent CO2 emissions 97kg-CO /m2 mitigation through assistance for environmental tasks to carbon footprint was 2 purchased to achieve New main CO2 mitigation tasks assistance system through natural ventilation in office, building carbon-neutral. CO CO emissions 2 Visualization system, information transmission and promotion 2 reduction 43kg-CO /m2 2 55% Reduced by about CASBEE: Rank S certified (BEE = 7.6), PAL: 35.9% reduction, ERR: 41.9% reduction 300 t/year 1 New Head Office of (under construction) Bu ilding overvi ew Location: Chuo-ku, Tokyo Start of construction: April 2009 Completion: January 2012 Building type: Office Structure: RC (partially, S structure) Total floor area: Approximatel y 51 ,800 m2 Scale: 22F, 3BF, 1PH

Concept and outline of environmentally sustainable design

•••Temperature control by entire- • Effective use of ■ surface radiant ceiling panels New RC super-high office tower; column-less office urban exhaust heat Temperature (ambient air conditioning) ntal eat ts High efficiency use er • r ee hh tt

nn • • • Humidity control by desiccant air of regional cooling ● Hybrid panels of structure, exterior and environmental Humidity conditioners (humidity control AC) Regional heating and cooling plant Chille

eleme Cold water (supply) Air currents••• Air current control through Other Hot wa

system (solar power panels and sun shading device). Exhaust Environm personal floor outlets (task AC) users Cold water (return) Hybrid radiant panel (ready Radiant ceiling panel ■ AC system for intellectual productivity enhancement for high thermal loads) Cold water (large ● Radiating base air conditioning and Personal air conditioning temperature Personal floor outlet difference) Absorb ● Earth- and human-friendlyyyy radiant AC system by new Conditioned air moisture. humidity control and perimeter control system

Desiccant ■ Lighting system making maximum use of PV power rotor Desiccant Task Daylighting Illumination Illumination air ● LED lighting in the whole building , Day-lighting system and lighting personal lighting control conditioner Light shelf Office 2 ● PV panels about 2, 000 m on the perimeter generate lighting Gradation energy for the office space blind ■ Optimum operation control through central monitoring (t-CO2/year) Solar poweraa generation Conventional technologies, About ● The building operation is optimized by BEMS, load 50% Building exterioretc. system reduction Lighting system Air-conditioning system prediction, and simulation technology. Eneegyrgy m an agem ent

CASBEE: Rank S (BEE = 4.4), CO2 during operation: 50% reduction 2 Typical office building This project Sapporo Building of Bu ilding overvi ew Location: Chuo-ku, Sapporo City, Hokkaido SfStart of constr.: Ju ly 2005 Completion: June 2006 Building type: Office, retail, and parking Structure: RC, S Total floor area: 6,970 m2 Scale: 8FL, 1BF

Concept and outline of environmentally sustainable design

1) Minimum thermal load environment Plumbing AC heat source 12% ●External insulation and minimized window area Electrical outlet

2) Northern area air conditioning Air exhaust outlets of skylights ●Natural energy utilization of free cooling, Fan 1% Pump 4% outside air cooling, and natural ventilation Lighting 39% ● Outside air inlets for Energy reduction and load leveling by structure natural ventilation thermal storage & radiant heating and cooling Pri mary energy consump tions (fi gure in FY2009) Natural draft Building structural The sun light 3) Day-lighting system T-Soleil thermal storage Primary1次ミラー mirror ●CftComfort eco-void b y aut omati c sun-tkitracking mirror , diffusion and radiation prism mirrors 4) High-efficiency operation based on BEMS Secondary mirror2次ミラー

Ceiling 階段 height 3.2m Story height ● 3.9m Energy-saving operation to ensure Beam Eco-Void

clearance 3次ミラーTertiary mirror a steady increase in efficient 2.9m Illuminance at the bottom of the void energy performance Two- to three-fold increase was achieved.

Electric consumptions by illumination in the void area CASBEE: Rank S (BEE = 4.5 Thermal insulation 20-30% reduced. in 2006), ERR: 49% reduction Carbon offset is achieved through the Building-structural thermal storage Conceptual diagram of solar power (measurement in 2009) use of carbon credit. radiant heating and cooling system admission system T-Soleil 3 Global Headquarters of Motor Co., Ltd. designed by Bu ilding overvi ew Location: City Start of constr.: January 2007 Completion: April 2009 Building type: Office Structure: S, SRC Total floor area: 92,100 m2 Scale: 22FL, 2BF

Concept and outline of environmentally sustainable design Creative office with “creation of intelligence” which delivers high environmental performance Natural 1)Engineering of facade as an environmental device exterior louvers ventilation louver • The effective layout of exterior louvers blocks direct sun rays, materializing an office area commanding a panoramic view of the landscape all the time. 2)Hea dquar ters functi ons un der the theme o f “crea tion o f intelligence” two-story atriums, light-well • Developpgpment of the building plan where two-storyyp atriums with a staircase are provided in the north and south sides of the building, inspiring agile actions and close communication among staff. Open view 3)Energy conservation day-lighting, natural ventilation, task & ambient AC • Day-lighting: the light shelf function of exexteriorterior louvers and daylight sensors

• Natural ventilation: Intake of outside air from exterior sashes and evacuation from the light well Cold draft • Task and ambient air conditioning: Adoption of under-floor air conditioning intake in winter season 4)Green roof for lower stories • With the rooftop treated as a facade in a broad sense, the rooftops of the low-rise portion are Typical building 97 covered with greenery. • The rooftop is actively utilized to provide refreshing space for employees previous headquarters 78 5)Large-space gallery radiant air-conditioning New headquarters 57 41% reduction • Enhancement in comfort through residential air conditioning largely using radiant systems, and (2009) energy conservation by abatement in room temperature setting 50 100 2 Gallery Annual CO2 emissions (kg-CO2/m ) Thermograph

CASBEE: Rank S (BEE = 5.6), PAL: 26% reduction, CO2 : 41% reduction (2009 measurement) 4