Updated on August 29, 2018

Developing the Environmental Technologies of the Future

Triporous™ Plant-Based Porous Carbon Material

Humankind is facing a major challenge with global environmental pollution due to industrialization, and therefore is creating a strong demand for technological solutions. Sony has responded by developing Triporous™, a new carbon material that can be used to enhance water and air quality, and help make improvements on several environmental issues. Triporous™ is made from rice husks and other raw biomass materials that contain silica (a component of glass), which are processed to give the material a unique, fine structure that easily absorbs substances that are otherwise difficult to absorb using existing technology. Triporous™ can be used to make filters that effectively remove pollutants such as high-molecular-weight organic molecules, viruses, and allergens from water and air. In 2014, Sony received The 21st Century Encouragement of Invention Prize from the Japan Institute of Invention and Innovation for developing Triporous™ technology.
Japan alone generates more than two million tons of rice husk waste each year. Sony is currently developing technology and practical applications for Triporous™, to help recycle excess biomass (rice husks) and address global environmental pollution.

Triporous™ and its logo


Conventional agriculture largely focuses on increasing productivity from a single crop, by plowing top soil, spreading fertilizer, and applying pesticides based on the characteristics of the crop. These practices damage ecosystems and cause other environmental problems. Sony Computer Science Laboratories, Inc. (Sony CSL) is testing applications for synecoculture, a sustainable agricultural practice that balances productivity with the need to reduce environmental impact. Synecoculture eliminates the need for plowing, fertilizing, and pesticide use that impact the environment, by taking maximum advantage of the material cycling that occurs naturally in ecosystems, aiming to create rich ecosystems with a diverse mix of plants that coexist together and grow lushly. Synecoculture requires vast knowledge of plant ecology, and for several years Sony CSL has been conducting tests at a number of farms, cultivating a blend of plants in order to collect data on plant compatibility and soil conditions.
Sony CSL is also using IT to develop systems to support greater social ecological diversity including synecoculture.

A synecoculture farm, where a diverse blend of useful plants is cultivated together
Elements of Synecoculture support system

Open Energy Systems

Although renewable energy sources such as solar and wind power generation have been attracting much attention in recent years, there are significant issues to overcome before thinly dispersed renewable energy can be utilized effectively. Sony Computer Science Laboratories, Inc. (Sony CSL) is conducting research on "Open Energy Systems (OES)," a whole new type of bottom-up, distributed electric power system, which mainly uses renewable energy sources. From fiscal 2013 to 2016, Sony CSL collaborated with the Okinawa Institute of Science and Technology Graduate University (OIST) on a joint research project. The research was selected by the Okinawa Prefectural Government to be part of its subtropical and island energy infrastructure technology research subsidy program. Under the project, Sony CSL installed photovoltaic panels and energy storage systems at 19 faculty housing units in the OIST campus, and built a DC-based OES (DCOES) to interconnect the housing with DC power lines. The installation has been used to test automatic power exchange between the housing units since fiscal 2014. Since fiscal 2017, with support for energy infrastructure research that utilizes Okinawa Prefecture’s advanced technologies, Sony has been conducting joint empirical studies with OIST and other organizations to further develop the DCOES system.

The electric power interchange system automatically compensates for imbalances between power generation and electricity consumption across residences, which are interconnected by DC power lines and communication lines
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