Let's have fun learning about decarbonization!

"Thin, light, and bendable" perovskite solar cells

　Perovskite solar cells are invented by Professor Riki Miyasaka of Toin University of Yokohama in Aoba Ward. Compared to conventional silicon solar cells, it has the following characteristics, so it can be expected to be deployed in various applications, and it can be said to be the trump card for expanding renewable energy.

・Thin, light, bendable
・It can be made with printing technology that can be applied and dried.
・Most of the raw materials can be procured in Japan
・Power generation can be generated even in weak light (slightly cloudy weather, rainy weather, indoor)

　Taking advantage of this feature, it can be installed on the side of a building, on the verandas of an apartment, or on the window glass. In addition, it is expected to be a technology that will greatly contribute to the realization of a decarbonized society, such as charging on smartphones for charging, or mounted on sensors and IoT devices used indoors to power them as power sources.
　As commercialization progresses in the future, it may be possible to generate electricity in various parts of the city.

　Yokohama City is conducting a wide-area share cycle project social experiment in order to promote the use of share cycles, one of the environmentally friendly local transportation methods.

　Share cycle ports have been opened one after another in Aoba Ward, and we are proceeding with installations not only in major stations such as Tama Plaza Station, but also in residential areas. It is also possible to borrow at a port near your home and return it to the station port. In May this year, a port was also set up in the Teraya hometown village. It's a good idea to take a leisurely tour around the hometown of the village.

※Click here for port location: Hello Cycling Homepage (outside site)

　Eco and convenient share cycle. Why don't you incorporate it into your daily life, such as shopping in the neighborhood, commuting to school, and leisure?

　Did you know that about 12% of Japan's greenhouse gas emissions are derived from food?
　The ingredients you see in stores emit CO2 during production and transportation, but I think it is difficult to be aware of this in everyday life.
　Therefore, Keio University has developed and planned a "delicious, healthy, environmentally friendly curry recipe making game" so that people can play while experiencing the CO2 emissions of each ingredient by weight using blocks of colorful ingredients.
　In this game, small children can enjoy and learn about decarbonization of food based on curry recipes that they love.
　This initiative is part of the activities of City of Yokohama, Housing and Architecture Bureau and Tokyu Corporation to create a next-generation suburban town. Next to this game, we will also introduce examples of initiatives related to decarbonization of "next-generation suburban town development". (Keio University, City of Yokohama, Housing and Architecture Bureau, Tokyu Corporation)

Benefits of Energy-Saving Housing

　Highly heat insulation (grades 6, 7 *) and high airtight energy-saving homes can reduce indoor temperature differences all year round with less air conditioning and can live "healthy", "comfortable" and "economic" life.
　Are windows condensed at home in winter? This is evidence that the temperature of the heated room has escaped outside due to the low insulation performance of the windows. It's very "wasteful"! In addition, this condensation generates mold and ticks, causing allergic diseases in the family. Another advantage of energy-saving housing is that we can reduce such concerns.
　Make "healthy" and "comfortable" life "economic" This article introduces the benefits that are friendly to both humans and the earth.
※There are seven levels of "insulation grade" defined in the "Housing Performance Indication System", and "7" is the highest grade.