What We Do
We are an internationally recognized educational non-profit organization bringing clean, free fuel and nutrient dense fertilizer to people around the world. We deliver biogas systems to suburban and urban gardeners everywhere, to farmers in the U.S., and to remote villages and refugee camps around the world. Our mission and educational program is based on the work and vision of Dr. Thomas H. Culhane.
10 cu. meter Solar CITIES Puxin concrete biodigester, installed on a farm in Al Najaf, Iraq in 2014. The project was led by Taha Majeed of the Ministry of Science and Technology IRAQ / Renewable Energy Directorate.
Past Projects and Workshops
The Best Garden Centerpiece: An IBC Biodigester
May 26, 2015 We met the incredible organic farmer Alex McCrae at the Green Planet Festival in the fall and he immediately expressed his enthusiasm for the small-scale biogas revolution. As it turned out, he already had an IBC tank and plumbing parts on site at...
Florida’s First Backyard Biodigester
May 25, 2015 Florida got its first backyard biodigester on when T.H. Culhane and Tim Laugher drove to Florida from New York to start the biogas wave. They built five IBC digesters in five locations in five days. This was the first, a blessing for the launch of our...
Project Green Thumb: Puxin Biogas Build in Huntingdon, PA
April 12, 2015 This is the second Solar CITIES Puxin Biodigester built in Pennsylvania. This one is a 6m3 system that will act as the predigester for Keppy Arnoldsen's own unique digester design. A notable lack of nuts and bolts in critical joint areas led to the...
IBC/ARTI Hybrid Biodigester in the Dominican Republic
January 10, 2015 At the end of our service learning trip to the Dominican Republic, Envisaj Mercy students and Solar CITIES co-founder T.H. Culhane introduced the IBC/ARTI hybrid system to the Batey Relief Alliance Center for AgroPecuaria. [ngg src="galleries"...
First Hestia Home Biodigester in the Dominican Republic
January 7, 2015 "La Bomba de Cenovi": The Dominican Republic's first Hestia Home Biodigester at the home of Tesori Alvarez in San Francisco de Macoris. This first for Solar CITIES was the idea of Martha Perez from our Mercy College Environmental Sustainability and...
Gassy Girl: America’s First 10m3 Puxin Biodigester
January 2, 2015 Let freedom ring! In the land of the Liberty Bell, a new bid for independence has been launched with the creation of America's first Puxin 10m3 biogas system at the homestead farm of Jody and Bob Spangler. Built by our Solar CITIES team with help...
Mexico’s First Urban Biogas System
January 2, 2015 By nightfall on Monday, December 29th, 2014, just as the downpour of rain started, we miraculously finished building the Yucatan's first urban biogas digester. For this digester, we used our Solar CITIES modification to the ARTI design. On the 31st, we...
Swaziland Farm IBC/ARTI Hybrid Biogas System
August 26, 2014 Simon, the grandfather of Sakhiwe Songhe who helped us build the digester at Sundowner's Backpackers Lodge, lives on a farm in Swaziland outside Manzini where he has fruit orchards and keeps cattle, geese, and chickens. It is here that Sakhiwe...
Sundowner’s Backpacker Lodge Digesters
August 24, 2014 Dr. T.H. Culhane, Rohit Fenn, and Amit Fenn traveled to Swaziland to work with Science in Action winners Sakhiwe Shongwe and Bonkhe Mahlalela. Rohit is a young man from India who designed a more efficient toilet and Amit is an evolutionary biologist...
Mini Digester at Principia College
August 17, 2014 During the sustainability conference at Principia College we built a functioning mini digester out of paint buckets. It really works and not only teaches the principles but gives a few minutes of daily gas!...
Rotoplas and the Micro-Scale Technology Trend
August 16, 2014 On a trip to Mexico, Rotoplas engineers surprised Culhane with a Solar CITIES-style modified ARTI digester. They had built the digester in anticipation of his visit. The digester included "microbial motels" to increase surface area. Rotoplas is...
Garden Biogas System
August 7, 2014 A couple of years ago a young man named Jorma Gorns from the Gymnasium Altenholz in Kiel, northern Germany, wrote Solar CITIES a letter asking if it would be possible to intern with us on some project around the world. A year later he took the...
Where We Work
Check out the map below to see where Solar CITIES has implemented biogas education programs – and biodigesters – through “hands-on” workshops. Some of these locations have two or more biodigesters in place, as part of our mission is to have two biogas education “hubs” in each location in order to build continued community learning support.
If you’re interested in working with us to bring biogas to your community, we invite you to get in touch with us directly. We have detailed reports about all of our projects. We would be delighted to share our information with serious enquires about partnership. Please contact us directly to share your thoughts on how we can be of assistance to you.