Products and Services Associated with Power Supply
Contribution by Products and Services Associated with Power Supply
Generating Power – Power Generation Technologies –
Electric power supply is an important lifeline that supports our lives. Toshiba Group promotes various initiatives to ensure a stable power supply as well as to mitigate global warming.
Main Power Source
Currently, approximately 60%*1 of the world's power is produced by thermal power generation from fossil fuels. Toshiba Group aims to achieve its goal of ensuring both environment-friendliness and a stable power supply by using a variety of technologies, including high efficiency thermal power generation and technologies for separating and capturing CO2 from emissions caused by thermal power generation.
We are also striving to restart nuclear power plants in Japan. To this end, we are implementing measures to enhance nuclear reactor cooling systems and control the release of radioactive materials with the aim of preventing serious accidents and mitigating the effects of radiation. In addition to developing a reactor core material that can reduce the volume of hydrogen in the event of a major accident as well as to promoting cyber security measures, we will continue ongoing efforts to further improve the safety of nuclear power plants.
Toshiba Group is also engaged in technology development, and responds to a wide range of customer requirements, including the development of a technology for hydroelectric power generation that improves water wheel efficiency by applying CFD*2, promotion of the introduction of renewable energy devices by using adjustable speed pumped storage power generation systems that contribute to grid stabilization, and the sales expansion of Geoportable™, a compact geothermal power generation equipment that can be introduced at a low initial cost.
- Source: World Energy Outlook 2020
- CFD: Computational Fluid Dynamics
Renewable Energy (Photovoltaic)
In the area of industrial photovoltaic power generation systems, Toshiba Group has delivered large-scale photovoltaic power plants with capacities of more than 10 MW to many locations in Japan. In addition, in 2018, we began selling a 360-W photovoltaic module with a conversion efficiency of 22.1% for residential photovoltaic power generation systems, thereby helping reduce CO2 emissions.
Storing Power – Power Storage Technologies –
The quantity of power generated by some renewable energy technologies fluctuates depending on the weather, so generating power with renewable energy is an unstable method for generating power. Expanding the use of this method requires controlling sharp output fluctuations and achieving load leveling through peak shifts. To handle such requirements, Toshiba Group provides products such as adjustable speed pumped storage power generation systems and a stationary storage battery system that uses Toshiba's high-performance lithium-ion battery, SCiB™, as modules.
Furthermore, in 2015, we commercialized H2One™, a hydrogen-based autonomous energy supply system that can supply power whenever needed by manufacturing and storing hydrogen using surplus power from renewable energy.
Distributing Power – Power Transmission and Transformation Technologies –
In order to provide an economical and stable power supply, we deliver various systems, including high-voltage, large-capacity power transmission/transformation devices, medium- and low-voltage power distribution devices, system protection relay devices, and monitoring and control equipment systems that remotely control these devices. With regard to DC power transmission technology that can reduce transmission losses compared to AC power transmission, Toshiba Group leverages its own technologies to participate in international projects for DC power transmission technologies as well as to provide such projects with major devices, including suspended thyristor valves and converter transformers.
Comprehensive Energy Coordination – Power Demand Forecasting Technology, etc. –
As the use of renewable energy increases, technology to fill the gap between power supply and demand has become more and more important. We have been developing virtual power plant (VPP) technology to optimally control multiple batteries using IoT, a technology to accurately forecast power demand and power generation from renewable energy, and other technologies as comprehensive technologies to generate, transmit, and store energy.
Our high accuracy forecasting technology for power demand and solar power generation that combines our existing high accuracy weather forecasting technology based on a numerical weather model and weather big data technology using AI have received goods results*3 in a contest hosted by major power companies.
We are also developing P2G*4 technology that uses hydrogen as adjustments for renewable energy. Hydrogen is positioned as a key technology for carbon neutrality since it is a CO2-free energy source that can be stored and transported. In March 2020, we started the operation of one of the world's largest P2G demonstration facilities at Namie Town in Fukushima Prefecture.
- Best award in the “First Electricity Load Forecasting Technology Contest” (2017), a contest hosted by TEPCO Power Grid, and Grand prize in the “PV in HOKKAIDO Contest on Technology for Predicting Solar Energy Production” (2019), a contest hosted by TEPCO and Hokkaido Electric Power.
- P2G: Power to Gas (converting surplus electricity to hydrogen and other gases)