No. 72: Another step to the spread
of fuel-cell vehicles (January 15, 2013)
Nippon Oil and Energy that operates 30% of nation's gas stations
started to consider building 40 stations for supplying hydrogen
across the country by 2015 when Japanese automakers are scheduled
to launch fuel-cell electric vehicles in full swing. In January
2011, a total of 13 companies in the fields of automotive and
energy set a target of building 100 hydrogen filling stations
throughout Japan by 2015.
At this moment, substantiative
experiments are under way in more than 10 hydrogen filling stations.
The company is operating three hydrogen filling stations in Tokyo,
and will start to operate two stations that supply both gasoline
and hydrogen coming February. The fuel-cell vehicle is the front-runner
of the next-generation eco-car. A fuel-cell passenger car can
travel 700 km per charge, and it takes only three minutes for
charging that is about the same time required to fill gasoline
to capacity of a gasoline-driven car.
No. 71: Introduction of wind power generation increases for the
first time in the past three years (January 9, 2013)
Wind Power Association announced that the capacity of all
new wind power plants scheduled to start operation in fiscal 2012
ending April 2013 will increase 8% over the preceding year to
92,000 kW, recording a year-on-year increase for the first time
in the past three years. The system to purchase power generated
by renewable energy at a fixed price started in July 2012. The
estimated introduction of photovoltaic generation was 2,000,000
kW in 2012. That is, the introduction of wind power generation
was less than one twentieth of the introduction of photovoltaic
generation. This is because it takes longer to put a wind power
plant into operation than a photovoltaic power plant.
the introduction of wind power generation recorded an increase for the first time
in the past three years in 2012, it is one third of the level of introduction
in the three years before 2010 when the government subsidized one third of initial
investment for the introduction of a wind power plant. The total generation capacity
of wind power generation as the end of 2012 was 2,610,000 kW. It is still a long
way to go for the substantial spread of wind power generation.
70: Japanese general trading companies participate in the renewable energy business
worldwide (January 7, 2013)
Corp. will invest 50% of the photovoltaic power plant run by the EDF
group of France. Starting with this investment, the company plans joint management
of the group's photovoltaic power plants and offshore wind power plants. It wishes
to strengthen the alliance with the EDF group and get know-how necessary to expand
renewable energy business worldwide. At the same time, it plans to ask the EDF
group for cooperation for its renewable energy projects.
has decided to participate in the renewable energy business project by the Canadian
subsidiary of GDF Suez S.A. of France. Marubeni
has already allied with a Danish company in the offshore wind power project, and
the two companies are now running an offshore wind power plant in Great Britain.
Sumitomo Corp. and Itochu invested in the world's largest wind generation plant
that GE of the U.S. operates in the state of Oregon.
No. 67: Japanese biogas generation technology
goes to Southeast Asia (November 16, 2012)
will start the biogas generation business in Southeast Asia in alliance with palm
oil producers in Malaysia and Indonesia. The company will build plants to generate
electricity using methane gas recovered from the effluent and joint companies
will sell electricity. Because Malaysia and Indonesia introduced an electricity
purchase system, Kubota tries to get orders with the emphasis on its technological
advantage. Kubota's system is called the membrane methane fermentation system.
Kubota will sell this system with a generator.
the help of its original membrane technology, the system can recover methane gas
effectively to increase the output by 20%. It is estimated that an average palm
oil plant can get a revenue about 130 million yen per year by selling electricity.
Kubota already secured an order of 300 million yen for a biogas generation plant
from Malaysia for the first time. Malaysia and Indonesia combined have more than
1,000 palm oil producers.
64: Small hydraulic generation market grows more active (September 22, 2012)
The small hydraulic generation is defined as the hydraulic
generation with a capacity of less than 1,000 kW. It is suitable for generation
using a brook or an agricultural irrigation channel. It is a dispersed power system
with a relatively stable output. Seabell
International is actively expanding business in alliance with Osaka
Gas. The company plans to increase sales quantity six times by offering a
lease system without front-end payment. Farmers collaborate with Energy
Bank Japan, a subsidiary of Osaka Gas, to conclude a contract with a leasing
company. They pay the lease fee with revenue from electric power selling, and
split the balance.
Koei has participated in the small hydraulic generation market with its medium-sized
generators that have a capacity of 400 kW, though it specializes in large-sized
generators with a capacity between 2,000 and 5,000 kW. With the introduction of
the system to purchase power generated by renewable energy, power generators can
sell power to electric power companies for 20 years. The selling price of power
generated by hydraulic generation with a capacity less than 200 kW is set at 35.7
yen per kW, that with a capacity between 200 and 1,000 kW is set at 30.45 yen
per kW, and that with a capacity between 1,000 and 30,000 kW is set at 25.2 yen
No. 63: Wind power generation
business grows brisk (September 15, 2012)
Summit Wind Power plans
to build another six wind generation facilities in Kashima of Ibaraki Prefecture.
The six facilities will start operation with a combined capacity of 18,000 kW
in 2016. The investment will be 4-5 billion yen. With the new facilities, the
company will increase its generation capacity 50% to 54,000 kW, equivalent to
power consumption of about 30,000 households. Summit Wind Power is a group company
of Summit Energy wholly owned by
Wind Power is now operating 10 windmills, each of which has a generation capacity
of 2,000 kW, in the Kashima coast industrial area. The company will have a meeting
with residents to explain its plan and show a picture of the plan. With the introduction
of the special law that asks electric power companies to purchase renewable energy,
wind power generation business is growing active. Summit Wind Power will sell
generated power to Tokyo Electric
62: Six companies ally to participate in the off-shore wind generation business
(September 5, 2012)
Six companies will form an
alliance and enter the off-shore wind generation business with a total investment
of 120 billion yen. They are Hitachi
Zosen, Toshiba, JFE
Steel, Sumitomo Electric, Toa
Corp., and Toyo Construction. Japan
Weather Association will joint the alliance for the survey on air flow rate.
They will invest 120 billion yen over a decade to construct an off-shore wind
generation plant with a capacity of 300,000 kW. Hitachi Zosen will build braces,
Toshiba will construct windmills, and Sumitomo Electric will lay down marine cables.
In the initial stage, they
will adopt the embedded off-shore generation system, and later advance to the
floating off-shore generation system. With the support from the government, they
will build a pilot plant with a capacity of 7,000 kW in several locations to study
feasibility and deterioration by salt damage in 2015 for the selection of the
construction area. The full-scale operation of the new plant is scheduled for
2020. A wind generator has a total of 20,000 parts as an automobile, promoting
wind generation will create employment. The generation cost of an embedded off-shore
wind generation is estimated at between 9.4 yen and 23.1 yen, land wind generation
between 9.9 yen and 17.3 yen, and large-scale photovoltaic generation between
30.1 yen and 45.8 yen in Japan.
60: Photovoltaic panels on the rooftop of a platform building in a railway station
(July 15, 2012)
Metro's subway network has a total of 179 stations, some of which are aboveground
stations. One of these stations has been running a photovoltaic generation system
as the photo below shows. The system has a total of 108 photovoltaic panels, covering
an area of about 127 square meters.
a sunny day, it can generate 20 kW that is enough to run an escalator and illuminate
the lights inside the station. In addition, it can reduce 10 tons of carbon dioxide
annually. Tokyo Metro is actively installing photovoltaic panels in its stations
to mitigate the image that a railway consumes lots of electricity and contribute
to the nationwide efforts to save energy.
No. 59: A British wind generator maker is
coming to Japan (June 20, 2012)
Wind Turbines, a British small-sized wind generator maker, will develop the
market in Japan in alliance with Zephyr.
The company has 30% share in the small-sized wind generator market in Great Britain.
Zephyr will collaborate with Evans and build Evans'
R9000 that has an output of 5 kW as Evans' original equipment manufacturer.
The price is not decided yet,
but will supposedly be around several million yen. The R9000 can be featured by
few troubles because of the simple structure to spin windmills. Zephyr will sell
Evans' product not only in Japan but also in the Asian region. It plans to sell
200-300 R9000s in the next three years.
has several advantages over photovoltaic generation despite the higher initial
investment: 1,500,000 yen vs. 520,000 yen. The former can generate as long as
wind exists, whereas the latter can generate only during daytime hours. The former
has annual generation per kW of 1,460 kW/h, whereas the latter has annual generation
per kW of 1,000 kW/h. What is more, the purchase price of wind generation is 57.75
yen per kW, whereas that of photovoltaic generation is 42 yen per kW.
Japan, the small-size wind generator is defined as a generator with an output
of less than 20 kW. At present, 75% of small-sized wind generators installed in
Japan have an output of less than 1 kW because nearly all installed small-sized
generators are for generation only for internal use. As of the end of 2010, 9,500
small-sized wind generators were at work, only 2.5% of which were connected to
the power network of an electric power company.
58: Japanese photovoltaic generation technology goes to Canada (June 16, 2012)
Three Japanese companies, Osaka
Gas, Mitsubishi Corp.,
and Sharp, will build a total of nine mega
solar power plants in the eastern part of Ontario of Canada with an investment
of 35 billion yen, and jointly operate them to accumulate know-how on the operation
and management of a mega solar power plant. The nine plants will have a total
generation capacity of 100,000 kW. The three companies will jointly establish
an independent power producer in Canada with a capital of about 10 billion yen,
of which Osaka Gas and Mitsubishi Corp. pay 45% each and Sharp pays the remaining
10%, shortly in Canada. They are scheduled to build three plants in 2012, and
the remaining six plants by the end of 2013.
have already concluded a contract with Ontario
Power Authority to sell generated electricity for 0.44 Canadian dollars (about
35 yen) for 20 years. At the strong request of the Ontario authorities, the project
will employ Canadian solar panels. The annual output is scheduled to be more than
100 million kW that is enough for the annual power consumption of more than 10,000
households. The purchase price of 35 yen is rather high, and it is currently second
highest following the price of 42 yen set by the Japanese government. Osaka Gas
is actively investing in the renewable energy business to make it as a new mainstay.
The wind power generation plant it built in Australia in alliance with Marubeni
has been operating since June 2011.
57: NTT participates in the photovoltaic generation business (June 13, 2012)
NTT will participate in the photovoltaic generation
business through one of its subsidiaries, NTT
Facilities, utilizing its idled land. It plans to build about 20 mega solar
power plants by the end of 2014. The total generation capacity will be 60,000
kW, making NTT the company with the biggest generation capacity in Japan. Total
investment will be about 15 billion yen. The 60,000 generation capacity can supply
electricity to about 20,000 households.
law to purchase electricity generated by renewable energy will be put into effect
coming July. The Japanese government proposed a plan to buy electricity of photovoltaic
generation for 42 yen per kW for 20 years. Because NTT can expect profits from
electric power selling to be 2 billion yen annually, it can recoup its investment
in 6-7 years. Starting this summer, NTT will operate 6 mega solar power plants
in succession until the end of next January with a total generation capacity of
56: Building a bridgehead in Australia (May 14, 2012)
largest wind generation company built a bridgehead in Australia to enter the Australian
wind generation market. Eurus
Energy agreed with AGL, Australia's
leading integrated renewable energy company, that it would acquire the wind generation
plant AGL constructed in the southern part of Australia for about 15 billion yen.
The plant that was completed in March this year has 25 wind generators with a
total output of 52,500 kW. The generated power will be sold to AGL's subsidiary
for 24 years to supply electricity to 27,000 households. Eurus Energy was founded
jointly by Tokyo Electric Power
Company and Toyota Tsusho.
Eurus Energy is doing generation
business in 7 countries with a total output of 2,100,000 kW, of which 820,000
kW is in Europe, 630,000 kW is in the U.S., and 530,000 kW is in Japan. The company
is actively trying to increase business responding to the special measures that
ask electric power companies to purchase renewable energy scheduled for enactment
coming July. It has been exploring the possibility to expand business in the markets
other than those in the northern hemisphere to diversify the risk of concentrating
on specific regions.
55: Taking the advantage of the growing popularity of geothermal generation (May
Geothermal generation is growing popular
in the U.S. and countries blessed with sunlight alike. Fuji
Electric, world's leader of the geothermal generation equipment market with
4% share, will participate in a geothermal generation project in the U.S. Energy
Source of the U.S. will construct the Hudson Ranch Geothermal Power Plant
in California for 30 billion yen, and Fuji Electric will take a stake in this
company for 800 million yen. The power plant has an output of 49,000 kW to supply
power to 50,000 households in Arizona. The construction will start in 2013 and
the operation will start in 2015. Fuji Electric plans to get an order for the
steam turbines and generators of this power plant.
the U.S., the total output from geothermal generation inside the U.S. is expected
to increase 70% over the level in 2010 to 5.4 million kW in 2015. The development
of geothermal generation has also been growing active in Indonesia and Philippines.
Fuji Electric wishes to increase its share in the world market to 50% by accumulating
development results worldwide.
54: Introducing photovoltaic generation to@elementary and junior high schools
(May 11, 2012)
The Japanese government decided
to introduce photovoltaic generation to@elementary and junior high schools and
use them as the base to supply electricity to the surrounding area. The
Ministry of Land, Infrastructure, Transport and Tourism and the
Ministry of Education, Culture, Sports, Science and Technology will construct
facilities for photovoltaic generation in selected schools in the disaster-stricken
areas and expand the plan throughout the country. In parallel with the introduction,
the schools will be renovated to be energy-saving and quakeproof utilizable as
the evacuation area in a time of disaster. In the March 11 disaster in 2011, more
than 6,000 schools were affected, of which about 200 schools reportedly need renovation.
Solar panels will be installed
on the rooftop of buildings and gymnasiums of selected schools. The renovation
cost is estimated at 100 million yen per school. Unlike a standard household,
a school consumes electricity mostly for lighting. In addition, it can store electricity
on Saturdays, Sundays, and vacations in summer and winter. It is estimated that
a school can satisfy the power demand of about 30 households. Several schools
have installed solar panels on an experimental basis, but no schools have ever
tried to provide the integrated service that includes power storage and supply
besides power generation. The two ministries hope that their plan will support
the technological innovation of private companies. A school is not allowed to
supply power to outside premises at present, but the two ministries are discussing
deregulating the existing rule as a special case.
No. 53: A convenience store chain starts
to sell surplus power outside (May 9, 2012)
on July 1, 2012, it will be possible to sell renewable energy to an electric power
company at a fixed price. Responding to this special measures law, many companies
have already participated in the power generation business, and we have another
Japan's second largest convenience store chain, decided to start the generation
business within the year. Lawson has about 10,530 outlets nationwide, and it will
install a photovoltaic generation system in these outlets to generate electricity
for lighting and air-conditioning. Surplus power will be sold to the local electric
power company. Lawson is the first major retailer that sells electricity by private
power generation to an outside company.
Japan's largest convenience store chain, has already installed a photovoltaic
generation system in 1,400 outlets for in-house power consumption. Family-Mart,
Japan's third largest convenience store chain, has already installed a photovoltaic
system in some of its outlets. Kyocera
has already decided to build Japan's largest photovoltaic generation facilities
in alliance with IHI and Mizuho
Corporate Bank, and Softbank is
planning to build a large-scale mega solar plant. The move to start in-house power
generation and sell surplus power outside is expected to grow widespread quite
52: Field test of a photovoltaic generation system in India (May 8, 2012)
has been achieving dramatic economic growth these days, and power demand in India
will supposedly increase three times in 2030 over the level in 2005. The Indian
government is promoting the national policy to introduce photovoltaic generation
of 20 gigwatts by 2022. Responding to this national policy, New
Energy and Industrial Technology Development Organization (NIDO) decided to
conduct a field test of a large-scale photovoltaic generation system in the Neemrana
Industrial Park in the western part of India. The industrial park is the strategic
point in the Delhi Mumbai Industrial Corridor (DMIC). The memorandum on the field
test was exchanged between NIDO and the development corporation of the DMIC.
will install a photovoltaic generation system with an output of 6 megawatts and
construct a microgrid system combined with diesel electric power generation to
realize constant power supply even in drought. The project cost is 4,100 million
yen, of which about 2,800 million yen is borne by NIDO, and power generation is
scheduled to start by the end of next year. Currently, 14 Japanese companies are
operating in the Neemrana Industrial Park, but they need a privately owned electrical
power facilities because of the unstable power supply. A total of 34 Japanese
companies already decided to construct a based in the industrial park.
49: Leasing a small-size wind generation system to plants and hospitals (May 2,
The move to spread renewable energy generation
has been gaining momentum thanks to the special measure that obliges electric
power companies to purchase surplus electricity generated by renewable energy.
Ricoh Leasing decided to
lease small-size wind generators to plants, hospitals, and commercial facilities.
The small-size wind generator
to be leased is built by Loopwing,
a venture company specializing in wind generators. Loopwing's TRONC is characterized
by a structure strong against blast. It does not create wind noise, nor does it
need so much space for installation. Because it catches wind in a three-dimensional
manner, the windmill rotates with a wind velocity as low as 2 m/h and has more
than 40% power exchange rate at a wind velocity of 8 m/h. Ricoh offers four types
of TRONC ranging from 500 W to 11 kW, and plans to lease a 500 W type for monthly
fee of 50,000 yen for a period of 6 years together with an electric bulletin board
to show the annual power output and reduced CO2 emissions. The 5 kW type can generate
2,683 kW per year at a wind velocity of 4 m/h, supplying enough electricity for
the annual consumption of a standard household.
No. 48: The action to stimulate the renewable
energy business induces a trading company to build small hydraulic power plants
(April 26, 2012)
The special measures to purchase
electricity generated by renewable energy will start coming July. This action
prompted capital-rich companies, such as generation trading companies, to invest
in the renewable energy business. Marubeni,
one of Japan's leading trading companies, will build more than 20 small-scale
hydraulic power plants across the country by 2020. The small-scale hydraulic power
plant generates electricity using water stream of rivers and irrigation channels.
Blessed with many mountainous areas and much rainfall, Japan has abundant number
of places suitable for small-scale hydraulic power generation.
company started the operation of the three plants in the Kanto district on April
25 to make the total number six. The three plants inaugurated on 25th were built
jointly by the local government and Mibugawa
Power Company that is Marubeni's wholly-owned subsidiary. The three plants
have a combined generation capacity of 650 kW. The small-scale hydraulic power
plant invites a wide attention as an environmentally-friendly generation system.
In addition, unlike photovoltaic generation, it can generate electricity for 24
47: The purchase price of electricity generated by photovoltaic generation is
preliminary set at 42 yen per kW (April 25, 2012)
Japanese government started making arrangements with authorities concerned to
set the purchase price of electricity generated by photovoltaic generation at
42 yen per kW excluding tax. The system that asks electric power companies to
purchase all electricity generated by such renewable energies as sunlight and
wind at a fixed price will be enacted coming July. The system is expected to remain
effective for about 20 years.
authorities insisted that the purchase price should be less than 40 yen, but the
committee on the purchase of renewable energy gave higher priority to stimulating
generation by renewable energy. The preliminary price will be submitted to the
meeting of the committee. The Minister of Economy, Trade and Industry will give
the final approval to the decision of the committee.
46: Fund raising for the construction of mega solar power plants grows more active
(April 23, 2012)
move to raise funds from investors for the investment in mega solar power plant
is growing more active toward coming July when the special measures to stimulate
the renewable energy business are enacted. Orix,
one of Japan's leading financial service companies, will create an investment
fund of 30 billion yen, and it will be followed by other companies.
the first step, Orix will create a fund of 10 billion yen by the summer of 2013
and construct 5-10 mega solar power plants. All stocks of the fund will be sold
to institutional investors when these plants go into operation, and electricity
generated by photovoltaic generation will be sold to the local electric power
company. The investors will receive dividends of the fund that is expected to
be 5%. Orix will create another two funds of the same kind by the summer of 2015.
That is, the company will construct 5-10 mega solar power plants that have a combined
output of 100,000 kW enough to supply electricity to 30,000 households in three
Marine Asset Management will create a fund to raise investment for the construction
of 10 mega solar plants across the country in alliance with Mitsui
and Co. The output is scheduled to be 1,000-2,000 kW each. Toyota
Tsusho and Eurus Energy
in which Tokyo Electric Power invested will invest 40-50 billion yen to construct
three 100,000 kW class mega solar power plants. The financing method will be the
project finance that gets finance from the bank on security of the revenue from
selling electricity. The two companies plan to create a fund and collect capital
from institutional investors in the future.
by renewable energy accounts only for 1% of total generation in Japan, but the
moves to construct the mega solar power plant is expected to grow against a backdrop
of the increasing sentiment of anti-nuclear power generation.
44: The nation's largest geothermal plant is planned (March 26, 2012)
companies of Idemitsu Kosan, INPEX,
and Mitsubishi Materials
drew a plan to build the nation's largest geothermal plant in Fukushima Prefecture,
responding to the conditional deregulation of excavation inside national and quasi-national
parks published by the Ministry of the Environment. The new geothermal plant is
scheduled to start operation toward 2020. The scheduled output is 270,000 kW that
is a quarter of the output of a nuclear power plant. Made up of several plants
with an output of 50,000 kW each, the new plant will supply power to 70,000 households.
Total investment will be 100 billion yen. Japan
Petroleum Exploration and Mitsui Oil
Exploration will supposedly joint the three companies, and the project will
supposedly be carried out by a total of nine companies. The companies involved
will hold a presentation meeting in April. They will give the highest priority
to local employment for public works like road construction and work out measures
for the attraction of tourists.
has the world's third largest geothermal
resources with about 24,000,000 kW following the U.S. and Indonesia, but it currently
has an output of about 540,000 kW because 80% of resources are inside its national
and quasi-national parks. The new plant with an output of 270,000 kW will surpass
Plant operated by Kyusyu Electric
Power that is currently the largest geothermal plant in Japan. According to
the government committee working on power generation costs, geothermal generation
costs 9-11 yen per kW that is almost the same level of coal fired power generation.
Toshiba, Mitsubishi Heavy, and Fuji Electric have a combined share of 70% in the
geothermal plant market in the world. Intensifying competition will inevitably
accelerate technological innovation of all companies involved.
42: The smart village project starts with government support (March 19, 2012)
government agencies, the Ministry
of Agriculture, Forestry and Fisheries of Japan and the Ministry
of the Environment, will jointly start the smart
village project in which renewable energy supplies power in rural area. Besides
utilizing agricultural water and thinned wood for power generation and heat supply,
the project facilitates the installment of equipment for photovoltaic generation
and wind generation in the fields and rice paddies that have been abandoned and
are no longer cultivated. The project aims to help the rural area realize self-sufficiency
The two agencies
will invite public participation for the substantiative experiment to test the
cost and combination of generation systems. They will select five locations in
the country and assist municipalities financially in their substantiative experiments.
They will screen
the problems with distribution of power generated by sunlight and water, cost
of management, and adjustment of irrigation right in using agricultural water.
Rural areas have lots of idle lands for renewable energy generation in addition
to thinned wood processable to woody biomass.
generation by renewable energy accounts for slightly above 1% of all power generation
if large-scale hydraulic generation is excluded. The government wishes to increase
the share to 3% in three years by utilizing small-scale hydraulic generation and
the fields and rice paddies that have been abandoned and are no longer cultivated.
For this purpose, it is critical to work out a system that allows the rural area
to consume power generated locally.
41: Japan exerts more energy to develop marine renewable energy (March 18, 2012)
Japan will build two plants for substantiative experiments
for the development of marine renewable energy. Ocean
Energy Association - Japan (OEA-J), a university-industry collaboration research
agency made up of such organizations as Tokyo University and Mitsui Zosen, decided
to collaborate with the central and local governments to build two plants for
substantiative experiments of ocean energy including wave power and tidal energy.
memorandums with the European Marine Energy
Centre (EMEC) on March 9. With the support from the EMEC, the OEA-J plans
to build the two plants in two years at the earliest.
prefectures are now the candidates for this project. The Japanese government will
select a few locations by March next year, taking conditions, such as wave conditions,
natural environment including wind velocity and ocean current, and influence over
fishery, into consideration. The two plants will allow for plug-in experiments
using the underwater cables. To put wave power and tidal energy into practical
use, it is necessary to evaluate the profitability by confirming generation efficiency
and durability. OCA-J plans to start the project with wave activated power generation
and ocean current power generation, and they will be followed by ocean thermal
energy conversion. Investment will be one to four billion yen for each plant.
Local governments grow more serious about introducing renewable energy (February
governments across the country will intensify their efforts to introduce renewable
energy with increased investment. Japanese prefectures combined allocated about
52 billion yen for renewable energy in 2012. Making the best use of regional characteristics,
every local government will solidify the system of local production for local
consumption of energy. Kanagawa Prefecture appropriated 866 million yen to build
a large-scale photovoltaic generation plant (mega solar plant) with an output
capacity of 2,000 kW. The plant to be operated by the prefecture is scheduled
to go into operation in the summer of 2013. Niigata Prefecture will install generating
equipment with an investment of 400 million yen in the mega
solar it built last October to increase the generation capacity to 2,000 kW
the sea, Okinawa Prefecture plans to establish a generation system that uses the
temperature difference between warm water close to the ocean surface and cold
water in deep water. It
will start a project in one of its islands. Two prefectures will start research
on the utilization of wave force and tidal force. Another prefecture will utilize
groundwater for the air-conditioning of greenhouses to grow vegetables and flowers.
The system is to pump up groundwater for heat exchange using heat pump. Efforts
to develop technology for power storage are also accelerating. Railway Technical
Research Institute is developing a technology to store electricity generated by
solar light and wind power through the application of the technology used for
the linear motor car.
39: Canadian Solar comes to Japan (February 24, 2012)
Solar, Canada's largest solar cell manufacturer, is reportedly having negotiations
with several local governments in the Tohoku district to construct a plant. The
company will start the construction within the year if it gets favorable and acceptable
conditions, and the new plant will go into operation after the spring of 2013.
Because mega solar plants (large-scale photovoltaic generation plant) are being
planned in the Tohoku district for the recovery from the March 11 disaster, it
will build a base to get involved in the photovoltaic generation business. Canadian
Solar in the world third or fourth largest solar cell manufacturer in volume.
The company will import solar
cells from its plant in China and assemble them to build photovoltaic panels in
Japan. The annual production capacity is estimated at 150,000 kW. The investment
is estimated at several billion yen. Because the system to purchase all amount
of renewable energy will start in July, the Tohoku district attracts wide attention
both at home and abroad. Showa
Shell is reportedly considering building a solar cell plant in the Tohoku
district. It seems likely that the Tohoku district will become a cluster of companies
involved in renewable energy business.
38: Introducing a photovoltaic generation system to schools (February 20, 2012)
company in Nagano Prefecture will start to install a photovoltaic generation system
in local schools. With the support form the prefecture and an NPO, Sunjunior
that specializes in the photovoltaic generation business plans to install the
system in five local public schools this spring, and increase the number of schools
to 700 in five years. The company will install a photovoltaic generation system
with an output of 100 kW, which is equivalent to the output for 25 households,
on the roof of school building. The system will come with an emergency power source
and LED lighting to provide a gymnasium with the function as an evacuation center
in a time of disaster.
costs about 40 million yen to install the system. Sunjunior will bear part of
the cost, and the remaining expenses will be covered by the investment from local
companies, local residents, and graduates. Generated power will be sold to electric
power companies, and investors will collect their investments from the revenue
of selling electricity. The company is working on the details of investment with
the NPO, Renewable Energy Shinshu-net,
and they wish the investment to be collected in 20 years. While
running the system, the company will improve the generation efficiency and
operation method to establish the optimal system. With the growing concern over
renewable energy, grass-roots projects are expected to spread nationwide in Japan.
No. 35: Using
fallen leaves and dead branches for power generation (January 18, 2012)
of Land, Infrastructure, Transport and Tourism decided to install generation
equipment in large-scale government-managed parks as an emergency power source
in a time of disaster. It plans to start testing in one or two of the 17 government-managed
parks across the country. The equipment to be installed generates by running a
turbine using gases created by steaming fallen leaves and dead branches. It is
designed to keep high generation efficiency even with unhomogeneous fuels. The
ministry plans to put the technology into practical use in one year in alliance
with private companies.
The electricity to be generated
will be used for lighting inside the park normally and for rescue activities in
case of power outage in a disaster. The ministry calculates that a government-managed
park in Tokyo with an area of 1,650,000 square meters can supply enough amount
fallen leaves and dead branches to generate about 10% of annual electricity demand.
The ministry decision aims to decrease the amount of plant trash by using weeds
and fallen leaves as fuel. About 2,000,000 tons of plant trash is produced annually
in this country, most of which is incinerated while only a small amount is used
No. 34: Using
earth thermal for energy saving in a production plant (January 6, 2012)
Japan is behind western countries in the application
of earth thermal. Thanks to technological development, however, it has become
possible to use earth thermal in a clean room that needs strict management of
room temperature, and Fujitsu will start
earth thermal for energy saving in one of its production plants shortly. In
this plant, a total of 31 pipes are dug in down to 30 m below ground to collect
earth thermal that is 15 degrees centigrade throughout the year. The plant will
collect earth thermal efficiently using the heat pump technology. The collected
earth thermal will also be used to warm air after dehumidification in summer.
The capital investment is
70 million yen, and the payback period is 14 years. The company plans to introduce
the same system in other production plants. The system is estimated to reduce
50 kiloliters per year as compared with the existing air-conditioning equipment
that uses city gas. In addition, about 120 tons of carbon dioxide emissions can
be reduced, the company estimates. The application of earth thermal is growing
popular steadily in Japan now, and it is expected to accelerate with the introduction
in production plants.
33: Growing popularity of offshore wind farming in Asia (January 2, 2012)
The offshore wind farming market is estimated to grow
nearly three times in 2015 over the level in 2011. Since Denmark launched offshore
wind farming in the 1990s, Europe has been taking the initiative in this business.
Following Europe, Asian countries have grown serious about introducing offshore
wind farming. Because wind farming creates lots of supporting industries, companies
with advanced technology are asked to explore business opportunities.
Systems and Sumitomo Corp.
jointly got an order for the laid down of undersea power cable between an isolated
island and the main island of Taiwan that stretches 350 km for 32 billion yen,
beating JS Cable of Korea in the international tender. J-Power Systems will build
the power cable in Japan, and Sumitomo Corp. will undertake the laid down and
civil engineering work. A total of six cables, each of which is 15 cm in diameter,
will be laid down. Offshore wind farming is expected to grow more popular as renewable
energy source in Japan, China, and Southeast Asian countries.
32: Cosmo Oil participates in the offshore wing farming business (December 24,
Oil plans to operate offshore wing farming plants, each of which is made up
of more than 10 windmills, offshore of the Tohoku and other districts early 2020.
Cosmo's subsidiary EcoPower
has already started the feasibility study offshore of Iwate Prefecture and offshore
of Ibaraki Prefecture. The company plans to build plants in waters 15-20 meters
deep about several kilometers away from the coast. It will conduct research on
the wind on the waters and the geography of the seabed using a special ship starting
in 2012. Each of the planned plants has an output ranging from 50,000 to 100,000
kW. The construction cost is estimated to exceed 10 billion yen per plant. EcoPower
is the fourth largest operator of wind power generation, and it is currently operating
about 130 land wind generation facilities.
has lots of suitable areas for offshore wind farming because it has the sixth
largest exclusive economic zone in the world. Some predict that offshore wind
farming will have a generation capacity of about 13 million kW around 2030. That
is, it will have two times higher capacity than the land wind generation, and
the generation capacity of 13 million kW is equivalent to the generation capacity
of 13 nuclear power plants. Japan will enforce the system that requires electric
power companies to buy the whole amount of electricity generated by renewable
energy at a fixed price in July 2012. J-Power
and Ministry of Economy, Trade and Industry are planning to do the substantiative
experiment of offshore wind farming after 2012.
No. 27: Increasing production of ethylene
carbonate for lithium-ion batteries (December 9, 2011)
Chemical will quadruple the production of ethylene carbonate that is a material
for lithium-ion battery. It currently produces 2,000 tons annually in Ibaraki
Prefecture, but it will expand the production facilities with an investment of
one billion yen to increase the production capacity to 8,000 annually toward 2013.
Because eco cars including electric vehicles are spreading fast, the company plans
to satisfy the growing demand by expanding the production capacity.
carbonate is a material for the electrolyte of a lithium-ion battery. The company
has established the technology to produce highly-pure ethylene carbonate at low
cost from ethylene glycol that is a raw material for polyester fiber. It plans
to increase the competitive advantage through mass production. It will renovate
the existing plant in Ibaraki Prefecture to increase the production capacity to
150% of the present level by next spring, and build a new plant with a production
capacity of 5,000 tons annually by 2013. Mitsubishi's ethylene carbonate is shipped
to Toyama Chemical
that is one of the leading producers of electrolyte for lithium-ion batteries.
As always, competition in the rapidly growing business is subject to economies
of scale backed up by capital strength.
26: Japanese solar thermal generation technology goes to Italy (December 6, 2011)
Corp. will construct a pilot plant for the solar thermal generation project
that uses high-temperature molten salt for heat conducting fluid in alliance with
Archimede Solar Energy (ASE)
of Italy. The pilot plant will be constructed inside Archmiede's premises northeast
of Rome toward August 2012. The output is scheduled to be about 200 kW. In Italy,
a demonstration plant is operating in Sicilia under the initiative of an Italian
electric power company. Because it is colder in Rome than in Sicilia, Chiyoda
wishes to appeal its technology to collect heat required for generation if sunlight
is available even in a severe environment, and test the heat collection system
and the functionality of the plant.
the conventional system that uses synthetic oil for heat medium, the new plant
can be operated by increasing the temperature of the heat medium to about 150
degrees centigrade, making it possible to increase generation efficiency, simplify
equipment, and reduce investment. Italy plans to construct multiple solar thermal
generation plants of the high-temperature molten salt type with an output of more
than 10 kW. Chiyoda concluded an agreement with ASE that has the manufacturing
technology of heat collection pipes necessary to use high-temperature molten salt
for heat medium in June 2011.
21: On wind generation and offshore wind farming (November 28, 2011)
In wind generation, wind power is proportionate to the area
that receives wind and to the cube of wind velocity. That is why location is a
critical factor for wind generation. At present, the horizontal-axis propeller
windmill is widespread because it can easily be made bigger in size, and the vertical-axis
type that can generate electricity regardless of wind direction. Wind generation
has been increasing presence both at home and abroad. Wind generation has a combined
generation capacity of 194 million kW worldwide as of the end of 2010. The world
leader in wind generation is China that has a capacity of 42 million kW, surpassing
Japan has a capacity
of 2.4 million kW at present. It has several problems with the introduction of
wind generation, such as the extra cost to make the facilities resistant to typhoons
and thunderstorms and a large amount of cost to acquire land for the facilities.
In particular, land acquisition cost needs studies and examinations. Deforestation
is necessary to build facilities and expand the roads for transportation of equipment
and machinery. At the same time, health damage caused by noise and low-frequency
sound if facilities are built in the vicinity of a residential area.
to the report on potential renewable energy in Japan published by the Ministry
of Environment, Japan has a potential capacity of wind generation between 24 million
kW and 415 million kW. It is reasonable to estimate that Japan will have a generation
capacity of 30 million kW on the condition the current efforts are made in the
future. Because Japan is surrounded by the sea, offshore wind farming attracts
strong attention. However, In addition to reducing the cost and developing technology,
it is necessary to modify relative legal systems to foster the coexistence of
offshore wind farming and ocean right including fishery right.
generation is strongly characterized by regionality because of the necessity of
wind. It is and will be mainly installed in northern part of Japan, such as Hokkaido
and the Tohoku district. Therefore, even if wind generation accounts for only
10% of Japan's total power demand, it will almost accounts for 100% of the power
demand in northern districts. It is urgent to develop technology for the coordination
of wide-range power distribution grips and the stability of power systems.
20: Small-scale hydraulic generation is spreading (November 20, 2011)
law that asks electric power companies to purchase all electricity generated by
renewable energy will be enacted next year, and the move to build a small-scale
hydraulic plant through the collaboration between a local government and a private
company is spreading. Nomura
Agri Planning & Advisory will build a small-scale hydraulic plant in Tochigi
Prefecture on trial. The company will install a generation with an output of 10
kW in two locations in the irrigation canal inside the prefecture to conduct feasibility
study next spring, and commercialize the technology in 2013. The prefectural government
will help the company by simplifying the complicated procedures involved in irrigation
right. A subsidiary of Mitsui Mining
and Smelting will build a hydraulic plant that generate electricity using
water of two rivers running in its premises with an investment of 1 billion yen.
Nippon Koei will start
to build a hydraulic plant in Kagoshima Prefecture coming December. The plant
will have a generation capacity of 460 kW and start operations in April 2013.
Japan has more than
20,000 locations suitable for small-scale hydraulic generation. Although each
of them has a generation capacity less than 30,000 kW on average, they together
are estimated to have a potential generation capacity of 15 million kW, about
the same generation capacity of 15 nuclear power plants. Local governments that
support the projects are serious about promoting renewal energy business. Because
water volume does not fluctuate greatly, hydraulic generation is more stable than
photovoltaic generation and wind generation in terms of output. The Ministry of
Economy, Trade and Industry estimates the generation cost of a small-scale hydraulic
plant at 10-35 yen per kW depending on the location. To promote small-scale hydraulic
generation, the Japanese government is considering revising the river law and
deregulating the procedures involved in irrigation right.
19: On photovoltaic generation in Japan (November 12, 2011)
Photovoltaic generation is expected to grow widespread as a generation technology
because it is environmentally friendly. All Japanese companies involved are exerting
lots of energy to develop the Japanese photovoltaic generation technology to be
highly competitive in the world market. It is urgent for them to increase the
energy exchange efficiency to higher than 18%. The photovoltaic generation roadmap
published in 2009, it is scheduled to be increased to 20% in 2020 and 40% in 2050.
According to the estimated by New
Energy and Industrial Technology Development Organization (NEDO), it is expected
that the exchange efficiency will be 20%, generation cost will be less than 14
yen per kW, and national annual output of photovoltaic generation will be 2-3
million kW in 2020, and the three figures are expected to be 40%, 7 yen per kW,
and 25-35 million kW in 2050. If these targets are achieved, the area necessary
for photovoltaic generation per kW will decrease drastically, making it possible
to install a system in a small space.
the maximum exchange efficiency of silicon semiconductor prevailing most in photovoltaic
generation is 27%. Accordingly, researchers are developing photovoltaic cells
made of other chemical compounds. In addition, they are trying the tandem type
that layers multiple materials, quantum dot type that uses fine particles, and
light focusing type that collects light using lens. Currently, a new residential
house can introduce a photovoltaic generation system with a generation capacity
of 3 kW for about 900,000 yen (about 750,000 with subsidy). In view of the current
technological progress, it may not be a dream that most houses in Japan will have
a photovoltaic generation system in the future.
large-scale photovoltaic power plant called mega solar has also been increasing
presence because it can intensively control the unstable distribution grids caused
by the output fluctuations. However, it creates transmission loss between the
plant and households. In addition, maintenance does not create constant employment
in the region. A vast land is required to build a large-scale photovoltaic power
No. 18: Nation's biggest
photovoltaic power plant will be built in Aichi Prefecture (November 11, 2011)
A total of six companies including Mitsui
Chemical and Toshiba have
decided to build the national's largest photovoltaic power plant in Aichi Prefecture
with an investment of about 18 billion yen. The construction will start in June
2012, and the plant is schedule for completion in September 2013. All the power
generated by this plant will be sold to Chubu Electric Power Company. As the special
measures law of renewable energy will be put into effect in July next year, it
is likely that a large size project of this kind is supposed to start in succession
The mega plant will be built in the 820,000-square-meter
idle land owned by Mitsui Chemical. Solar panels with a combined capacity of 50,000
kW will be laid on the area. A wind generation plant with a capacity of 6,000
kW will also be built in this area. The plant will be able to generate power sufficient
to satisfy the demand of about 19,000 households. There are two mega photovoltaic
power plants at present. The plant in Sakai near Osaka has a capacity of 28,000
kW, and the plant in Kawasaki near Tokyo has a capacity of 20,000 kW. The new
mega plant in Aichi Prefecture will have the nation's largest, surpassing these
two mega plants.
The special measures law to be enacted
next July asks electric power companies to purchase all amount of power generated
by renewable energy at a relatively high price for the next 15-20 years. The specific
amount and specific period for the purchase will be decided early next year.
No. 13: Race to develop a new system
for wave activated power generation (November 4, 2011)
Three companies involved in the development of a wave
activated power generation system are intensifying their efforts to introduce
a new system. They plan to finish the basic design in two years and start a substantiative
experiment on the sea in 2013 with a view to achieving a generation unit cost
of 40 yen per kW by 2015. Mitsui
Engineering and Shipbuilding will improved the system developed by Ocean
Power Technologies of the U.S. to make it suitable to the sea around Japan.
The new model will be 8.5 m wide and 30 m long with a capacity of 80 kW.
Heavy Industries Bridge and Steel Structures Engineering will develop a system
that uses waves coming to breakwaters to run a turbine with the help of changes
of water surface and pressure in alliance with Toa
Corporation. The equipment for the system is 20 m wide, and it projects about
20 m from the breakwater. Hitachi
Zosen and a joint venture company in Kobe will develop a gyro system that
generates the power when rotating circulate plates comes back to the original
position by virtue of waves. They plan to build two units of generation equipment,
each of which has a capacity of 100 kW. Japan started the development of a wave
activated power generation system since 1975, but is still unsuccessful in translating
it into practical applications because of the high generation unit cost. Each
of the three groups addresses the development as a project led by New Energy and
Industrial Technology Development Organization (NEDO) and plans to realize a generation
unit cost of 20 yen per kW by 2020.
12: Japan's first substantiative experiment of ocean thermal energy conversion
(October 29, 2011)
Steel and Saga University will
start Japan's first substantiative experiment of ocean thermal energy conversion
that generates electricity using the temperature difference of seawater. They
plan to develop the next-generation technology that generates electricity at about
20 yen per kW on a 10,000 kW scale. They will build demonstration equipment and
conduct the experiment for one year starting in 2013.
ocean thermal energy conversion generates low-test ammonia vapor by dint of warm
seawater near the ocean surface and runs a turbine for power generation. Surplus
vapor is cooled down by cool seawater in the deeper layer for recycling. Saga
University will promote the efficiency of the heat exchanger using titan developed
by Kobe Steel to reduce the cost of the equipment. Using the new heat exchanger,
the research team will build substantiative equipment with a capacity of about
10 kW and conduct the substantiative experiment for one year to verity the generation
cost. The experiment site will be an island in Okinawa Prefecture. Starting this
year, it is a five year project led by the
New Energy and Industrial Technology Development Organization.
10: A total of 93 items are subject to deregulation in the draft to promote renewable
energy (October 20, 2011)
and environment subcommittee of the Japanese government issued a draft for the
reform of regulations and systems. The draft covers 93 items to promote renewable
energy. They include mitigation of the existing regulations on geothermal and
wind generation inside national parks and abandoned farmlands. Regulations on
the location of hydraulic power generation will be mitigated, and safety regulations
stipulated by the Electric Enterprise Law will be modified to facilitate the introduction
of small-scale generation and new technology. Actually, the draft consists of
three themes: (1) Reform of the power system, (2) Faster introduction of renewable
energy, and (3) Promotion of energy saving.
specific, regulations on national parks and abandoned farmlands will be modified
greatly to simplify the procedures of the feasibility research and excavation
necessary for the construction of a power plant, and special measures law of the
Agricultural Land Act and the Forest Law will be formulated. To foster small-scale
hydraulic power generation, the government will modify the Electric Enterprise
Law and the River Law besides mitigating the regulations on water right. At the
same time, the subcommittee will publish guidelines to clarify the procedures
for negotiations and adjustments with people and organizations involved in the
fishery industry to introduce ocean wind generation that can rarely be found in
Japan at present. The Japanese government plans to enforce the deregulation within
the year to minimize the increase of electricity cost and prevent power shortage
in the peak time through promoting power using renewable energy.
9: Substantiative experiments of an air-conditioning system using earth thermal
(October 17, 2011)
Ground Water Development in Yamagata Prefecture will start substantiative
experiments of an air-conditioning system that uses earth thermal inside its headquarters
coming November. They are designed to establish a model for effective operation
of the system and study the influence of the system over the underground environment.
This is a three year project to be conducted in alliance with the graduate school
of Kyushu University
and National Institute of Advanced
Industrial Science and Technology (AIST). The investment for the initial year
is 100 million yen.
The company introduced an air-conditioning
system that combined ground water and a heat pump as the energy source in 1983.
The system pumps up ground water and returns the water to the ground through thermal
exchange. In the experiments, the research team will establish an air-conditioning
system combined with the latest heat pump and study the effective operation of
the system to increase the presence in the market. An 840-square-meter floor will
be used for the experiments, and operation data will be collected to start the
operation toward late November. The research team is scheduled to draw a nationwide
promotional map for the effective utilization of the earth thermal air-conditioning
No. 8: An increasing number
of companies get involved in geothermal generation (October 6, 2011)
No projects were planned for geothermal generation since the last project
ended in 1999. It is estimated that Japan has a potential capacity of more than
20 million kW in geothermal generation that is equivalent to the total capacity
of 20 nuclear power plants, but only 0.5 million kW is being utilized because
of the strict regulations governing national parks and the difficulty to sell
generated electricity. However, the situation is changing very rapidly. The buyback
system of all electricity generated by renewable energy will be enacted next July.
Taking the opportunities of the deregulation,
an increasing number of companies plan to start the geothermal generation business.
Marubeni will build geothermal plants in
the northern part of Japan with a view to selling all generated electricity. JFE
Engineering, Idemitsu Kosan, and INPEX
are planning to enter into the business. Mitsubishi
Materials has already started to excavate wells for geothermal generation
in alliance with Tohoku Electric
Unlike photovoltaic generation and wind generation, geothermal
generation is not affected by weather conditions. In addition, the cost of geothermal
generation is 20 yen per kW, while that of photovoltaic generation is as much
as 40 yen per kW. At the same time, the Ministry of Environment is scheduled to
deregulate the development of geothermal generation on the condition that a special
construction method is used. Japan has the world's third largest resources of
geothermal generation following Indonesia and the U.S. The Ministry of Economy,
Trade and Industry supports the spread of geothermal generation. It has asked
the Diet to appropriate more than 10 billion yen for the research on geological
structure and the amount of geothermal energy resources.
7: Wind generation grows popular in the northernmost part of the Honshu Island
(October 5, 2011)
is the northernmost prefecture in the Honshu Island. This prefecture actively
takes the initiative in introducing measures to promote renewable energy including
wind generation. It has 200 windmills that have a combined generation capacity
of about 300,000 kW. The governor of Aomori Prefecture shows the determination
to be the leading prefecture in introducing renewable energy.
wind generation companies, such as Eurus
Energy and Eco Power,
set up bases in this prefecture. Japan
Wind Development is also active in this region, and it graded up its base
to the headquarters in the Tohoku region. Moves to utilize sunlight are growing
in the area facing the Pacific Ocean because it is not snowy. Tohoku
Electric Power is constructing a large-scale photovoltaic generation plant
inside its premises. A small local organization is operating wind generation and
small hydraulic power generation using springwater in the Seikan
tunnel. The prefecture is actively developing various kinds of generation
using renewable energy. They include generation using water of storage reservoir
for agriculture, ocean current power generation, earth thermal generation, and
generation using woody biomass.
No. 4: Growing moves to develop bioethanol using nonfood raw materials (September
There are growing moves to start substantiative
experiments of bioethanol using nonfood raw materials. The Japanese government
set a goal to produce 500,000 kiloliters biofuel of oil equivalent annually in
2017, but Japan has the capacity to produce only 200,000 kiloliters biofuel at
present. The major raw materials currently the Japanese government plans for biofuel
are corns and sugarcanes, but the development of inexpensive raw materials are
vital because grain market prices are going high these days.
Research Association of Innovative Bioethanol Technology, founded by six companies
including JX Nippon Oil &
Energy, Toyota, and Toray, will build experiment plants next spring to produce
fuel by fermenting sugar content extracted from such raw materials as gramineous
with an investment of about one billion yen. Oji
Paper and Nippon Steel Engineering
will build experiment equipment inside one of Oji's plants with an investment
of one billion yen. They use lumbers and wood residues unusable as raw materials
of pulp. It is an urgent task to diversify the raw materials for biofuel in Japan.
2: Growing trend to use renewable energy for agriculture (September 13, 2011)
The approach to use renewable energy for agriculture
is growing widespread. Fuji
Electric developed a PCV greenhouse equipped with solar cells in collaboration
with Zen-Noh, and
plans to sell this new product through Zen-Noh's distribution channels starting
in 2012. The newly-developed PCV greenhouse has a roof with film solar cells developed
by Fuji Electric on it. The solar cell is about 1 mm thick. Because it is thin
and light, it can be put on the frame of a PCV greenhouse. Zen-Noh will study
the optimal installation system of the solar cells to maintain high generation
efficiency. A PCV greenhouse of about 2,000-square-meters is expected to have
a generation capacity of 6-8 kW. Surplus electricity will be sold to electric
power companies. The substantiative experiment has started using PCV greenhouses
for tomato cultivation. The company plans to sell the solar cells with a farming
support system, and expects to grow the annual sales to 10 billion yen in three
Technologies developed a vegetable plant system combined with a generation
system that uses renewable energy to promote the self-sufficiency of electricity
in agriculture. The system comes with a storage battery and equipment to generate
electricity using sunlight and wind. When sunlight is not enough for photosynthesis,
the system lights LEDs to supplement sunlight using electricity from the storage
battery. The vegetable plant system offers high harvest efficiency. It can produce
2.5 times more tomatoes than the conventional cultivation method. The system is
scheduled to be installed in a 1,000-square-meter vegetation plant to be built