TECH SHOWCASE

TAISEI CORPORATION is constructing Japan's first Zero Carbon Buildings by introducing advanced construction materials and technologies. We are promoting Zero Carbon Buildings and contributing to decarbonization in urban cities through our technologies that achieve net-zero CO2 emissions in the building life cycle.

T-Green® Multi Solar, a revolutionary exterior system that combines lighting, power generation and design, can be used in new and renovated buildings of various sizes, such as office building exterior and balcony. T-Green® Multi Solar has been introduced to a factory in Thailand and an office development project in Vietnam taking advantage of Joint Crediting Mechanism (JCM).
KANEKA CORPORATION, a co-developer, is developing a "tandem type" solar cell that combines crystalline silicon with perovskite solar cells, which are expected to be the next generation. This combination aims to exceed the conversion efficiency of existing crystalline silicon solar cells.
T-eConcrete® can achieve CO2 balance “Negative” in the manufacturing process by fixing CO2 inside the concrete material. This contributes to Zero Carbon Buildings.

At RE100 demonstration facility "H2 KIBOU FIELD" in Kusatsu, Shiga since April 2022, combining pure hydrogen fuel cells, solar cells and lithium-ion storage batteries, 100% of energy of operation is successfully covered by renewable energy (RE100) to accumulate know-how to operate RE100 factory by managing these 3 batteries adjusting to weather and operation. Since July 2024, we started additional experiment trying to use heat generated during power generation by pure hydrogen fuel cells as heat source for absorption chillers.
At COP29, we will showcase activities at the UK (Cardiff) factory of microwave ovens, aiming at effective utilization of energy to improve overall energy efficiency with 3-battery manaement plus generated heat for hot water and heating system

• (1) Innovative Hydrogen (H2) Production & Power Generation Technologies: MHI promotes development of H2 combustion combustors and demonstration in actual plants to promote H2 conversion in natural gas-fired power plants as an approach to decarbonizing existing infrastructure. Large gas turbines that only burn H2 are expected in 2030. MHI is also focusing on development of H2 production technologies, because the supply side is essential.
• (2) CCUS Solution: To realize decarbonized society, in addition to CO2 reduction, capture, transport, and storage of emitted CO2 (CCUS) is necessary. MHI Group has a wide range of products and services in CCUS value chain, such as CO2 Capture System, LCO2 Carrier, and Compressor to contribute to early realization of carbon neutrality.

With declaration of Net-Zero for CO2 emissions reduction in May 2022, Nitto Group began building and demonstrating a decarbonization system as part of its environmental contribution products and services toward realization 2050.

Targeting fossil fuel-derived boilers, the system uses separation membranes to highly concentrate and recover CO2 in exhaust gas, then converted to formic acid, which is mainly used as an additive in animal feedstock and as a tanning agent for leather. The system also envisions the development of DAC using waste heat.

CO2 Separation Membrane, Conversion, and DAC are Nitto's inventive technologies that incorporate its accumulated know-how. We believe this offering of sysem with this combination will provide a total solution for CO2 reduction.

Japan CCS Co., Ltd. (JCCS) will introduce two projects commissioned by NEDO.

• ・Integrated CO2 Ship Transportation Technology Development Project - Conducted by JCCS, ENAA, Itochu, NGL, efforts of LCO2 (Liquified CO2) ship transportation technology development and demonstration will be communicated. Ship transportation test of low temperature/pressure LCO2 is world's first endeavor, aiming for safe, low-cost, large-volume transportation.
• ・Tomakomai CCS Demonstration Project - Japan’s first integrated CCS project, achieved 300,000 tonnes CO2 storage. Monitoring is being continued. The results of long term monitoring including pre-, during and post- injection monitoring will be introduced to communicate safety and reliability of CO2 geological storage in the project to the world.

Hundreds of thousands of tons of solar panels are expected to be disposed of annually in the future, and recycling of cover glass, with 60% weight ratio, is a serious social issue. Having identified the causes inhibiting recycling in float-process, AGC worked with PV recyclers to ensure that the glass is properly separated, and finally succeeded in recycling. Building flat glass, being produced in high volume, is expected to serve as a suitable outlet for the horizontal recycling of cover glass. This initiative helps to conserve raw materials derived from natural resources and to reduce greenhouse gas (GHG) emissions in its production processes.
Aiming to realize the circular economy in the supply chain, AGC is working with various partners to recycle glass.

One solution to pursue decarbonisation and circular economy in waste management systems is to move from landfill to incineration power generation, and to capture CO2 and convert it to e-methane with clean hydrogen. To realize this solution, we, KANADEIVIA Corporation, present an innovative waste management system that combines waste-to-energy, methane fermentation, wind power, desalination, hydrogen generator, methanation and efficient CO2 capture technologies in a package of existing and developing technologies. Hydrogen Generator produces oxygen and hydrogen, oxygen is fed to waste incineration for highly efficient CO2 capture, while hydrogen is converted to e-methane through a methanation reaction with the recovered CO2.

ArkEdge Space Inc. aims to "Empower people with satellites for a prosperous future" by offering a wide range of services, from mass production of various types of small satellites to providing satellite-based solutions.

We are developing methods to detect, identify, and analyze environmental changes and risks by combining data from various satellites and ground sensors. Additionally, by leveraging advanced web technologies and AI, we are developing a geospatial information platform that automatically collects, processes, and analyzes diverse data, enabling everyone, even non-experts, to easily visualize key information through simple operations and help businesses assess and disclose natural capital risks and opportunities, as well as support conservation efforts.

GETFLOWS is characterized by full coupled analysis that enables surface water and groundwater interaction analysis, which was previously difficult, and is one of Japan's cutting-edge technologies. A model of the real world is created in a computer, and surface water and groundwater are calculated simultaneously to calculate river flow, groundwater reserves, water budget, etc.
When applied to climate change adaptation, GETFLOWS is a physical model that does not use runoff coefficients, so it is expected to predict runoff with higher accuracy than conventional methods. Drought forecasts can estimate time changes in groundwater reserves and soil moisture, sections below the river minimum water level, and risks and impacts on living thing when the water source is groundwater.

While the introduction of mitigation measure against climate change has been progressed recently, the introduction of adaptation measures (mainly disaster prevention) has not. Although the amount of funding introduced into adaptation measures itself has increased to an all-time high, 98% of it is public funding.
We believe that the lack of clarity on "adaptation value" - the difference between the economic and environmental benefits before and after the implementation of adaptation measures - and the inability of the private sector to determine return on investment is a barrier to the flow of funds into adaptation measures. We will use "adaptation value" visualization/quantification techniques developed by us to promote private sector investment in adaptation measures.

As climate change exacerbates flood disasters, adaptation is becoming ever more important. This exhibit showcases flood simulation technology and distributed control technology for data center (DC) workloads for a more disaster-resilient, decarbonized society.

Flood simulation:

• Predicts river water levels and areal flooding based on cloud radar and rainfall information. Identifies risk areas to support emergency planning and flood-resistant urban planning.

Distributed Control of Data Center (DC) Workloads:

• Controls cross-regional DC workloads.
• Optimizes energy supply-demand balance by adjusting workloads to utilize power surpluses from regional renewables, to fully utilize renewables and reduce CO2 emissions.