Contribution by Products and Services Associated with Power Consumption
With regard to product groups such as LED downlights, industrial motors and HDDs for which CO2 emissions during use account for the largest percentage of emissions generated throughout product lifecycles, improving energy-saving performance leads to reductions in CO2 emissions. Toshiba Group helps reduce CO2 emissions by developing and providing advanced energy-saving technologies.
We will contribute to reducing CO2 emissions by 57 million t-CO2 in the 3 years from FY2021 to FY2023 by improving the energy-saving performance of products and services associated with power consumption, including social infrastructure products, services and office equipment.
In FY2022, as a result of expanding the provision of products and services with enhanced energy-saving performance, we reduced CO2 emissions by 37.79 million t-CO2, falling short of the reduction target of 41 million or more under the Seventh Environmental Action Plan. In FY2023, we will continue to contribute to reducing CO2 emissions from products and services associated with power consumption. To this end, we will expand our business for system products mainly in the social infrastructure domain, aiming to spread the use of products and services that have large energy-saving effects.
Through these efforts, Toshiba Group will promote reductions in emissions from products and services, to contribute to realizing a carbon neutral society.
■ Contribution to GHG reduction during product use (cumulative total)
■ Breakdown of reductions in CO2 emissions by business segment (FY2022 (cumulative total))
■ Percentages of CO2 emissions from the lifecycle stages of Toshiba Group’s products
Case: Helping to achieve a carbon neutral society with SCiB™ rechargeable lithium-ion batteries
Toshiba Corporation Battery Division
The SCiB™ rechargeable lithium-ion battery is very safe and has high power, a long lifetime, excellent performance in low temperatures, and wide effective SOC range*, and it recharges fast by adopting lithium titanium oxide for the anode.
It is used for vehicles, such as automobiles, buses, and railways, industrial equipment such as elevators, and infrastructure equipment such as large-scale electricity storage facilities that are linked to renewable energy.
Toshiba Corporation Battery Division started offering the 20 Ah-HP cell, which has the advantages of both high-power and high capacity, as a new SCiB™ product. Since this product has a longer lifetime than conventional products, it is expected to be applied in even more fields.
While continuing to expand SCiB™ in the automobile field, Toshiba Corporation Battery Division will contribute to achieving a carbon neutral society by supporting the resilient infrastructure service platform through helping save energy by using regenerative electric power and renewable energy as well as supplying power to peripheral systems.
- SOC: State of charge
Case: Key Devices that Contribute to Energy Savings – Power Semiconductors
Toshiba Electronic Devices & Storage Corporation
Power semiconductors are used everywhere involving the conversion of electricity, but some power is lost as heat during conversion. The causes are broadly divided into conduction loss and switching loss, which are in a trade-off relationship. Toshiba's high-performance power semiconductors have succeeded in lowering this dichotomy of loss in a well-balanced manner through a variety of innovations. In recent years, high-performance semiconductors with low losses, such as SiC (silicon carbide) and GaN (gallium nitride), which could not be achieved with silicon, have been put to practical use, however, as they are expensive, they are used only in applications with large benefits such as railways and wireless base stations. Silicon power semiconductors are likely to continue to be used in many products. U-MOS X series and DTMOS VI series are state-of-the-art silicon power semiconductors that enable high efficiency in many electric devices in households, and contributes to the energy savings of equipment using those devices.
- Contributes to reducing loss of switching power supplies: 80 V N-Channel MOSFET with improved trade-off between on-resistance and charge characteristics (Toshiba Electronic Devices & Storage Corporation)
- Contributes to higher efficiency of switched-mode power supply: Aggressive reduction of MOSFET switching loss (Toshiba Electronic Devices & Storage Corporation)
Case: Doppler VHF Omnidirectional Radio Range (TW4133)
Toshiba Infrastructure Systems & Solutions Corporation
DVOR (Doppler VHF Omnidirectional Radio Range) equipment for overseas specifications is a sort of navigation systems which uses Doppler effect. DVOR provides high accuracy bearing information to aircraft so that DVOR plays important role in safe, efficient flight as a radio beacon at airports and along air routes. Toshiba’s DVOR is mainly delivered to many countries such as Asian countries, South American and African countries, DVOR prove this product as reliable system around the world.
While achieving the same level of performance as other conventional products, this product utilizes board mounting technology for RF circuits (high frequency circuits) and signal processing technology to achieve a compact size and reduce energy use. This enables the product to reduce CO2 emissions throughout the cycle from raw materials procurement to production, distribution, and sale; use and maintenance; and disposal and recycling. As a result, GHG emissions compared to the previous model have been reduced by approximately 66%, and the product has been certified as a “Low CO2 Kawasaki Brand ‘22”.
Doppler VHF Omnidirectional Radio Range (TW4133)
Case: Medium-speed monochrome multifunction printer (MFP) e-STUDIO6528A series
Toshiba Tec Corporation
In recent years, environmental initiatives are increasingly becoming important worldwide. Toshiba Tec Corporation has been working on energy saving, saving resources, and reduction of chemical substance used in MFPs.
A fixing device is the component that plays an important role in increasing energy saving performance in MFPs. In an MFP, a toner stuck on paper is warmed, melted, and fixed with a fixing roller. Here, the important point in improving energy efficiency is how efficiently the fixing roller can be warmed. Our e-STUDIO6528A series monochrome MFP achieves energy-saving by improving the heat conductivity of the fixing component and using a low temperature fixing toner. As a result, the e-STUDIO6528A achieved the top-level typical electricity consumption (TEC) value, which is an energy saving standard for MFPs used by the International ENERGY STAR® Program and was certified as an excellent ECP for FY2022. From the viewpoint of resource saving, it also achieves 8.8% in the usage rate of recycled plastic materials by utilizing high post-consumer recycled materials.
- https://www.toshibatec.com/cnt/products_overseas/monochrome_mfps/eS6528A_series/ (Toshiba Tec Corporation)
