Solar Cooking
Solar Cooking
This article is about an entity that either no longer exists or that may no longer be active in solar cooking promotion. It is retained here for archival purposes.

Last edited: 31 December 2017      

Niconet Tsukuba is an NGO founded by Yuko Tomioka in Japan. The focus has been educating the community about energy conservation practices, as well as, promoting awareness about environmental/global issues, through the introduction of solar cookers. To help with language translation, Yuko has also started Solar Cookers Info to help the local community have access to solar cooking information.

The group demonstrates solar cooking at local events in Japan, and member Fumi Sakurai stayed in Madagascar for two years, where serious deforestation is evident, and she introduced villagers to the solar cooking.


Fumi Sakurai, with Niconet Tsukuba, introduces solar cooking in Madagascar with the Sun Peace solar cooker.

Yuko Tomioka 2, 11-161-2.jpg
  • November 2012: Niconet Tsukuba has been introducing solar cookers to local citizens in Japan to increase people’s awareness of environmental and global issues, as well as to make small changes from their fossil-fuel-centered lifestyles to eco-friendly ones. Our programs are usually performed in an informal and relaxed manner, by our motto “Niconet’s 3E = Enjoy, Environment, and Eating.” Solar cooking is, in fact, effective for promoting communication with others. In 2011 -2012, we worked with the faculty of a local university to conduct an analysis on the efficiency of the Sun Peace solar cooker which was developed by our member Yuko Tomioka, by using thermo-graphic devices. We plan to include the results in our Solar cooking recipe booklet, which will be available on the web this year. In recent years, we also have focused on hand-made “retained heat cookers”. We introduced that newspaper as an effective material for insulating. While we are mainly active in the local area in Japan, some members are also active in other countries. Our member Fumi Sakurai stayed in Madagascar for two years, where serious deforestation is evident. She introduced villagers to the solar cooker Sun Peace. This solar cooker is easy to make because it does not require measurement. She suggested to some key persons in villages to use aluminum sheets of used snack packages for reflective material. It was found to work successfully in the sun-rich climate. Some villagers who learned how to make/use solar cookers became “teachers” and started to share the skills with others. In Japan, introducing such information is also useful for educational purposes.

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See Yuko Tomioka.