what we can do for the global environment · 2017-04-10 · environmental practices contents what...
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Headquar ters 1-7-1 Kyobashi, Chuo-ku, Tokyo 104-8388
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Toda Institute of Kaname 315, Tsukuba, Ibaraki 300-2622Construction Technology
What we can do for the global environment
What we can do for the global environment Version 3.0
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Toda Corporation(Promotion of fice for Value Creation)
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ht tp://www.toda.co.jpMix
Paper made from environmentallyresponsible biomass resources
With the future
of the earth
in mind
Toda Corporation We, as an environmentally advanced company, are committed with the Ministry of the Environment to conserve the environment.
Creation
by people.
Created
with people.
Realizing ZEB ………………………………………………………… 05
Environmental roadmap ……………………………………………… 03
The environment creates new “values” ………………………………… 01
Converting natural resources into energy …………………………… 09
Creating a better place to live ………………………………………… 11
Promoting environmentally friendly construction ……………………… 12
Creation of the environment coupled with eco-activities ……………… 13
● ● ● ● Green energy
● ● ● ● Smart city
● ● ● ● Eco-construction
● ● ● ● Eco-communication
The environment creates new “values”
Toda Corporation’s environmental practices CONTENTS
What we can do for future generations
With the corporate environmental philosophy Toda Global Environment
Charter established in 1994, we have been making efforts to reduce
environmental risks and create a low-carbon society.
We also committed ourselves to reducing our CO2 emissions by 40%
from 1990 levels by 2020 and were accordingly certified in 2011 as an
Eco-first Company*.
In addition, we are developing and promoting technologies for
creating a better environment while striving to reduce environmental
burdens through our day-to-day operations. We are also engaged
in environmental education, where our accumulated technological
expertise and knowledge are being passed on to those who will protect
the environment in the future.
These efforts, we believe, will solve emerging and changing social
problems and provide values, both tangible and intangible, to
stakeholders.
* The Eco-first Company Certification Program is a system where the Minister of the Environment certifies companies committed to environmental conservation (e.g., global warming mitigation, waste reduction and recycling efforts), acknowledging them as environmentally advanced companies in their respective industries engaged in “innovative and unique activities.”
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SPECIAL FEATURE
TODA CORPORATION ● What we can do for the global environment What we can do for the global environment ● TODA CORPORATION01 02
● 2010 – Launched the TO-MINICA P.12
(low-carbon construction) system ● 2010 – Started producing BDF P.12 (biodiesel fuel) ● 2014 – Systemize TO-MINICA’s web
Promotion of energy-saving andlow-carbon construction
Continuous reduction of CO2 emissionsfrom construction
● 2012 – Developed a sterilized air conditioning system ● 2012 – Developed a radio-controlled lighting system● 2013 – Developed a smart hospital lighting system● 2013 – Demonstrated a task-ambient lighting system
P.08● 2013 – Developed a double safety kit● 2014 – Introduced a direct current power supply system
designed for ZEBs
Application to ZEBs P.05
Energy CSR activities
Mega solar power plant● 2013 – Participated in the construction of a mega solar
power plant in Shiranuka-cho, Hokkaido ● 2014 – Started the construction of a mega solar power
plant in Tadehara, Nagasaki P.09● 2014 – Developed an installation simulation program for
solar panels
Development of mega solarpower generation business
Receipt of orders for EPC of mega solar power plants
● 2013 – Participated in the Smart Community Project in Kawamata-machi, Fukushima P.11
● 2014 – Created an energy network at the Saitama Cancer Center P.11
Development and promotion ofenergy network technology
Construction system
● 2012 – Developed an indoor fi refl y breeding biotope P.13
● 2013 – Participated in plant management activities at the new Kurokawa Farm, Meiji University
● 2013 – Monitored biotopes in schools in Tokyo ● 2014 – Constructed a rooftop garden on the headquarters
building P.13
Demonstration and monitoring survey of an urban ecological network
Biomass power generation P.09
● 2013 – Established Hydropower Co., Ltd.
Construction of biomasspower generation plants
Environmental roadmap ● ● ● ● We will continue to create new “environmental values.”
Eco-fi rst Company Certifi cation Program Eco-fi rst Company Certifi cation Program Eco-fi rst Company Certifi cation Program
Corporate eco-activities
Environmental education and events
● 2010 – Certifi ed as an eco-fi rst company ● 2014 – Appointed vice chairman of the Eco-fi rst Promotion Council
Fulfi llment of the eco-fi rst commitments Set targets for 2050
● 2011 – Rolled out the ECO Leader Project ● 2013 – Sponsored and held the 2nd Environmental
Technology Workshop ● 2014 – Took measures to comply with the revised Energy
Saving Law
Efforts to increase employees’environmental awareness
● 2010 to present – Providing environmental education to elementary and junior high school students
● 2010 to present – Participating in eco-product exhibitions ● 2014 – Participated in the environmental workshop
sponsored by the Suginami Ward Offi ce ● 2014 – Participated in the 2014 Learning Festival
Promotion of social action programs and ESD*Establishment of an environmental brand
● 2010 – Designed a three-story ZEB concept ● 2011 – Completed the construction of the Toda Building
Aoyama P.06
● 2012 – Designed a seven-story ZEB concept
Construction of building to demonstrate ZEBDemonstration of ZEBs
Offshore fl oating wind power generation P.10
● 2013 – Installed a 2.0-MW wind turbine as a demonstration project of the Ministry of the Environment
● 2014 – Data on the output, etc. is being collected.
Summarization of the demonstration project of the Ministry of the Environment
Realization of an offshore fl oating wind farm
Environmental technologies Environmental technologies Environmental technologies
Main categories
Sub-categories ● Major achievements in the past
Future approaches(from the present to 2020)
Roadmap design
A typical environmental roadmap shows what has been and will be done for the environment
while corporate environmental programs must change to keep pace with the changing times
and meet the needs of society.
This roadmap classifi es our environmental programs into four categories.
● ● ● ● What is an environmental roadmap?
ZEBZEBZEB
Smart city
Biodiversity
Society and business
morning evening
Smart hospital lighting system
* ESD (Education for Sustainable Development)Learning and activities to create a sustainable society
Environmental technologies Production technologies
TODA CORPORATION ● What we can do for the global environment What we can do for the global environment ● TODA CORPORATION03 04
Realizing ZEBEnvironmental technologies being developed through various projects
What is ZEB?
Environmentally friendly buildings using natural energy ZEB is the acronym for (net) zero energy building, where its
energy consumption is reduced to near zero. Toda Corporation
is committed to realizing a building that produces all the
energy it needs from renewable sources such as solar, wind
and geothermal power, adopting advanced energy-saving
technologies.
Four key elements of ZEB
RenewableEnergy
● Promotion of the use of renewable energy
Management● Optimization of the
operation of facilities and equipment
● Review of work styles
Design● Insulation of exterior walls, etc.,
improvement of solar radiation control properties
● Planning of buildings designed to maximize the use of natural energy
● Introduction of advanced energy-saving equipment
01
23
4
zero
energy
Innovation● Improvement of the effi ciency of
facilities and offi ce automation equipment
● Offset of CO2 emissions
4
Toda Building Aoyama
Location: Akasaka, Minato-ku, TokyoStructure: An eight-story steel structure building Building area: 512 m2
Total fl oor area: 3,755 m2
ZEB model (Step 1)
Structure: A three-story steel structure building with a basement Total fl oor area: 7,400 m2
ZEB model (Step 2)
Structure: A seven-story steel structure building with a basement Building area: 1,599 m2
Total fl oor area: 9,400 m2
next page▶ more about TODA ZEB ● ● ● ●
The Toda Building Aoyama, which was completed in March 2011, is a medium-
sized, environmentally friendly tenanted building boasting a 40% reduction in
CO2 emissions (from 2009 levels), a breakthrough a few years ago.
The building is equipped with double-skin curtain walls designed to reduce the
amount of solar radiation, radiation air conditioning systems, desiccant air
conditioning systems, transmissive solar cell modules, geothermal heat
pumps, optical ducts, lighting fi xtures with motion sensors, etc. With fi fty
environmentally conscious technologies adopted, it obtained the highest level
of certifi cation such as CASBEE (S Class) and the Tokyo Green Building
Program System 3-3 (AAA).
It is a fl agship project involving environmental technologies while data is being
collected and verifi ed to implement a ZEB commercialization project in 2020
through evidence-based design (EDB).
Modern buildings consume energy to support sophisticated business
and people’s lives. The Great East Japan Earthquake, meanwhile,
had a devastating impact on Japan’s energy supply.
In response, the government announced the Basic Energy Plan on
April 11, 2014, which ultimately aims to realize net-zero energy public
buildings by 2020 and encourage wider adoption of ZEBs, targeting
2030.
We must therefore make further efforts and contributions to fulfill the
plan.
Mitsuhiko TokuhisaManager, Architectural Designing Department, Architectural Design Division
Shin-ichi TanabeProfessor, Department of Architecture, Waseda University
The Toda Building Aoyama
Gearing up for zero energy building (ZEB)
voice
voice
● ● ● ●
SPECIAL FEATURE
TODA CORPORATION ● What we can do for the global environment What we can do for the global environment ● TODA CORPORATION05 06
Renewable
EnergyInnovation
Management
Realizing ZEB
Ventilation control based on the amountof CO2 and the number of occupants
Task light equippedwith a motion sensor
Ambient lightingwith light guide plate
Task-ambientair conditioning system
Task airoutlet
Underfloor pressure control
Ambientair outlet
Facility controlusing IC tags
IC
● Horizontal duct
OFFICE Light outlet ●
OFFICE
Lightinlet ●
Naturallight ●
Closed
Ventilation through solar chimney effect
Cooling and heating pit ●
Heat receiving plate ●● Ventilation using the temperature difference
● Fresh air is fed to each floor through ducts
Fresh air
Desiccant
The optical ducts installed in the eight-story Toda Building Aoyama illuminate the elevator lobby on the sixth fl oor.
Ene-Mado ●
Encouraging building tenants to save energyBuilding tenants are encouraged to save energy with their energy consumption “visualized.” Specifically, it’s displayed by floor, section, etc.
● Task-ambient lighting Illuminating the desktop and reducing total power consumptionThe area around the person (task) and the entire room (ambient) are illuminated separately to provide an energy-efficient, comfortable indoor environment in terms of lighting and air conditioning.
● Optical ductReducing lighting energy consumption Optical ducts reflect sunlight into the building, which in turn
reduces lighting energy consumption.
Design
● Solar panelTapping renewable energy generated by solar powerThe use of the power generated by solar panels reduces commercial power
consumption.
Solar chimney ●Reducing power consumption by chimney-effect ventilationA solar chimney installed on the rooftop collects solar heat to warm the air in the
chimney, which is exhausted to ventilate the entire building, resulting in reduction in
power required for ventilation.
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Converting natural resources into energy ● ● ● ●
Green energy
Power generation business capitalizing on the renewable feed-in tariff scheme is booming nationwide.
Toda Corporation’s services are wide-ranging, from land reclamation to cradle installation, regulatory compliance (in the planning stage), stakeholder coordination, foundation engineering, and design and installation of solar panels. Leveraging its experience in power generation business (including the mega solar power plant in Tadehara), moreover, we also provide operational services.
The total area of Japan’s exclusive economic zone is ranked sixth in the world. Offshore locations, where there is a constant strong wind, have great potential for wind power generation. In particular, floating wind power plants are suitable for the seas near Japan, where the water depth drops rapidly. The demonstration plant is designed to collect data on environmental impacts and safety as well as the knowledge required for commercial operation including maintenance and inspection. Toda Corporation is committed to commercializing offshore floating wind power generation.
● ● ● ●
Mega solar power plantFrom planning to design, procurement, construction and operation
Japan is rich in forest resources, which have not been fully used. The forest industry is thus declining, resulting in the degradation of forests.
Toda Corporation is focusing on biomass power generation to solve these problems, tapping unused biomass resources such as tree thinnings – Japan’s valuable energy sources – to restore forests and help create a recycling-oriented society.
In addition to wood materials, other biomass resources such as livestock wastes and garbage are being used for power generation.
● ● ● ●
Biomass power generation plantsUsing unused biomass resources and waste materials as energy sources
● ● ● ●
Offshore floating wind power generationA wind power plant floating on the sea
As part of the demonstration of offshore floating wind power generation, a project sponsored by the Ministry of the Environment, Japan’s first offshore floating wind power turbine (2.0 MW) is in operation off the coast of Kabashima Island, Goto City in Nagasaki. It is 172-m long and 96-m high above sea level. Its floating structure has a maximum diameter of 7.8 m and weighs about 3,400 tons.
The mega solar power plant in Tadehara, Nagasaki, built on the site of a golf course with an area of about 28 ha, has an installed capacity of 13.2 MW. Toda Corporation is one of the owners of this power plant, taking charge of the design and construction of it. It is scheduled to start selling electricity in April 2015.
Toda Corporation is promoting biomass power generation in cooperation with Japan Blue Energy Co., Ltd. which specializes in biomass gasification power generation. The demonstration plant shown in the picture uses wood chips to produce hydrogen and heat in addition to electricity, part of which is supplied to communities near the plant.
Eurus Shiranuka Solar Park (30.0 MW)Location: Shiranuka-cho, HokkaidoProject owner: Eurus Energy Shiranuka Corporation
KDDI Kitaura Solar Plant (2.0 MW)Location: Namegata, IbarakiProject owner: KDDI Corporation
Mega solar power plant in Tadehara, Nagasaki
The third demonstration plant of Japan Blue Energy (built in 2013 in Shibukawa, Gunma)
The demonstration turbine Haenkaze
● Construction examples
Photo by Yoshikazu Nishiyama
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Creating a better place to live ● ● ● ●
Smart city
Environmentally friendly construction
Eco-construction ● ● ● ●
The way electricity and thermal energy are consumed differs from building
to building. An energy network is a system where buildings are connected
with one another through cables and pipes to average out energy
consumption and exchange surplus energy. For example, energy
consumption in offi ces and commercial facilities peaks during the day
and decreases at night, which is usually the opposite for housings. Power
consumption peaks can be smoothed by exchanging electricity between
the two sectors.
● ● ● ●
What is an energy network? Supplying surplus energy to other buildings
Saitama Cancer Center
New hospital energy network
Kawamata-machi reconstruction project
Biodiesel fuel (BDF)
CO2 emissions from construction account for
about 90% of those released by construction
companies. Toda Corporation, therefore,
developed the low-carbon construction system
TO-MINICA, which is designed to calculate the
amount of CO2 emissions from construction
and help draw up reduction plans.
In 2000, zero emission was achieved for the fi rst time in the construction industry for the
construction of the Canal Wharf Towers. Zero emission efforts are underway at other building sites
by reducing and segregating waste.
● ● ● ●
TO-MINICAAn integrated construction system designed to mitigate global warming
● ● ● ●
Zero emission Reducing construction waste
An energy network centering on the Saitama Cancer Center is in operation to significantly reduce the environmental load (reduce CO2 emissions by 35% from previous levels).
We are building a depopulated smart community in Kawamata-machi to support Fukushima reconstruction efforts. The plan is to capitalize on renewable energy and create an energy network primarily for community facilities. Renewable energy will also be used to generate power, which is expected to create new industries and employment opportunities.
Edible oil, a raw material for biodiesel, is derived from rapeseed, soybeans, etc., which absorb CO2 during growth (photosynthesis). The amount of CO2 released during combustion of BDF is therefore counterbalanced.
Kawamata-machi town offi ce with a net zero annual energy balance
Senior communityHot bath facilities, etc.
Mega solar power plants (5 MW)
Public facilities equipped with community-wide energy control systems
Housings incorporating solar panels, storage cells, fuel cells and HEMS
0
100,000
200,000
300,000
0
5
10
15
20
25
30
1990
The amount of CO2 emissions per construction cost of 100 million yen
192,364192,364
88,094
28.53(t-CO2) (t-CO2/100 million yen)
20.94
19.57
19.72
18.26
Down 40%from 1990 levels
17.11
87,86287,862
89,23173,185
2010 2011 2012 2013 2014 2020(Fiscal year)
Legend CO2 emissions (Actual)
Emissionintensity(Actual)
Emissionintensity(Target)
The surplus of energy generated from renewable sources and high-effi ciency equipment is used effi ciently by making use of information communication technology.
Tenpu-chan, a BDF fairy
Major activities
● Changes in CO2 emissions from construction
and their intensity
● Energy network model Eco-construction
● ● ● ●
Office
Electricity Heat Gas Community telecommunications
Shop
Power plant School
Legend
Gas
Hospital
Housing
Mega solar power generation
CEMS
Biomass power generation
Wind power generation
Hotel
Centralcontrol
Tenpu-chan,
Toda Corporation produces BDF to fuel construction machinery. It complies with the JIS and nine municipal regulations.
East building
Employees’ housing
Mental Health Center Saitama Cancer Center
Common utility duct
Trench
Underground pipes
Small-scale wind power generation
External scaffolds for solar installation
Eco temporary offi ce
Construction machinery fueled
by biodiesel
Temporary lighting fi xtures equipped with motion sensors
Reduction of industrial waste
Hybrid construction machinery
Temporary LED lighting fi xtures
Temporary energy-saving lift using regenerative power
Adoption of prefabricated construction
Heavy machinery fueled by biodiesel
Tower crane powered by green electricity
Solar power generation with temporary fences
Energy-saving operation and idling stop practice
Use of green curtains for temporary fences
Canal Wharf Towers (Koto-ward, Tokyo) Building D at the Yokaichi Plant, Murata Manufacturing Co., Ltd. (Higashi-omi, Shiga)
Yamadagawa Dam (Sera, Hiroshima)
CO2 reduction technologies at workplaces
Legend
TODA CORPORATION ● What we can do for the global environment What we can do for the global environment ● TODA CORPORATION11 12
Creation of the Environment coupled with eco-activities ● ● ● ●
Eco-communication
We are committed to “regenerating biodiversity in a creative way”
through construction business while working in harmony with
biodiversity. For example, we are conducting monitoring surveys
on biotopes in schools in Tokyo and on an urban ecological
network at the rooftop garden on the headquarters building. The
resulting monitoring data serves as the basis of design,
construction and technical proposals.
We are making concerted efforts to conserve the environment,
recognizing the importance of the conservation and sustainability of
biodiversity. Specifically, we are engaged in studies to minimize
impacts on the growth of fireflies and conserve their habitats.
We visit elementary schools to keep students informed of our
environmental activities. For example, we have been providing
various educational programs to the students of Joto Elementary
School (Chuo-ku, Tokyo) since 2010, targeting the fifth and sixth
graders. We also demonstrated the production of BDF in a science
class to communicate the importance of recycling to the students of
Matsuhidai Elementary School (Matsudo, Chiba) and Makinohara
Elementary School (Matsudo, Chiba).
With focus on offshore floating wind power generation, meanwhile,
we provided hands-on experience in making paper crafts of floating
wind power generation units at events such as the Eco-products
Exhibition, environmental workshops sponsored by the Suginami
Ward Office and the 2014 Learning Festival.
A number of children take part in these events to learn about the
importance of energy and deepen their understanding of natural
energy.
● ● ● ●
Creation and survey of biodiversity
● ● ● ●
Environmental conservation efforts for fi refl y habitats
● ● ● ●
Environmental education capitalizing on what is unique to construction business
A rooftop garden opened in April 2014 on the rooftop of the headquarters building with the use of our proprietary “biodiversity assessment system.”
An indoor biotope called “Hotaruarium” is designed to monitor the ecology and habitat of f ireflies.
Many students listen intently to lectures at schools and events.
Environmentaleducation
Every year, the fifth and sixth graders learn about the environment
with the help of Toda Corporation. In fiscal 2013, for example,
they learned about offshore floating wind power generation and
assembled a miniature floating wind power generation unit to
demonstrate it.
They also learned about BDF (biodiesel fuel) in fiscal 2014 and
converted used tempura oil (waste edible oil) into biodiesel to drive a
diesel engine. These activities help them get interested in nature and
science and technology while providing them with opportunities to
think about nature and environmental conservation.
Tomonobu YoshidaPrincipal at Joto Elementary School, Chuo-ku, Tokyo
Environmental education in partnership with Toda Corporation
Biodiversity
voice
TODA CORPORATION ● What we can do for the global environment What we can do for the global environment ● TODA CORPORATION13 14