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Celestino Ruivo

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Celestino Ruivo November 2007

Celestino Ruivo's innovative cement-based solar cooker.

After my participation on the Granada Conference in July 2006 I became "well contaminated with the virus of solar cooking". Before I did not use solar cookers. I was a little sceptical. During the last year I have tried to disseminate solar cooking, first in my region (at home, schools, restaurants, beachs, media) but also in other regions and in other countries (Brasil and Spain). My participation on the Granada was the needed ignition to start. I have started with the solar cookit that Margaret gave to me. Then a lot experiences were done with different solar types of solar cookers, most of them of low cost apparatus using recycled materials. During this lats days 90% of my meals are cooked on solar cookers. It was very intense and entusiast activity. There somethings that did not run well. I'm a very tired but I will try to "contaminate" others with "this solar cooking virus" on next year. It is not easy.

Many thanks for all of speakers on Granada conference and specially for Pedro Serrano.

One of the last interesting reportages will be on the air next wednesday. A short preview video about renewable energy (almost solar cooking in a field with 70 scouths) is avalaible on SBS TV (Australia) on the programa DATELINE:

Prof. Ruivo reports that in 2007 he taught 1000 people and distributed 100 solar cookers, empowering 2000 people in Brazil and Portugal.

The complete program will be on the air and also available on the website.

News and recent developments

Celestino Solar Funnel Cooker

Celestino Solar Funnel Cooker


Celestino Ruivo's innovative cement-based solar cooker.

  • January 2013: The original funnel solar panel cooker was inspired by the CooKit. This efficient solar panel cooker was developed in 2007 using sheets of polypropylene. Recycled windows of clothes washing machines were used to create the greenhouse effect around the pot. A variation of the cooker made of concrete and common mirrors has been tested since 2009. Some of the main advantages of this solar cooker are: low cost reproduction in every part of the world using local available common materials, intuitive and practical use, water rain resistant and wind resistant and no risk for fire ignition. The useful heating capacity of this model was estimated around a value of 100 W. Read more at Experiences of solar cooking in Portugal during the last six years
Portugal august 2008 cookit

Professor Celestino Rodrigues Ruivo

  • August 2008: Since becoming “well contaminated with the virus of solar cooking” at the 2006 International Solar Cookers Conference in Spain, professor Celestino Rodrigues Ruivo has become an important advocate for solar cooking in Portugal and beyond. Ruivo credits Pedro Serrano, of Chile’s Red Iberoamericana de Cocinas Solares (RECOSOL), and others for helping him overcome his initial skepticism. Ruivo learned to solar cook using a “CooKit” given to him by Solar Cookers International (SCI). He has since made and used several types of solar cookers, mostly “low cost apparatus using recycled materials.” Over ninety percent of his meals are now cooked with solar energy. Ruivo started promoting solar cookers locally — at his home, in local schools and restaurants, etc. — and worked with local media. Then he broadened his scope to other regions of Portugal, and eventually to Brazil and Spain. He’s even becoming known in Australia, where an interview with Ruivo (taped during a solar cooker workshop he conducted for about 70 Scouts) was broadcast on Australia’s SBS television program “Dateline.” Ruivo conducts numerous promotional activities. He has held several solar cooker conferences at the University of Algarve, with sessions on the evolution of solar cookers in Portugal, solar cooker distribution strategies, and solar cooker construction. He has also assisted with solar picnics and participated in solar cooking contests. According to Serrano, Ruivo has “developed an intensive process to diffuse the technology, [organizing] workshops, symposiums, courses, etc. — more than 20 activities in only one year.” Though Ruivo admits to being somewhat tired, he says he will continue his efforts to “contaminate others with this solar cooking virus.”


See also

External links


Prof. Celestino Rodrigues Ruivo
Instituto Superior de Engenharia da Universidade do Algarve

Campus da Penha
8005-139 Faro

Tel: 289800166/289800100 (ext. 6571)
Fx: 289888405

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