Solar CITIES

06/02/2026

We’re excited to share that the Solar C³ITIES Solutions team will be attending Penn State Extension’s upcoming conference on anaerobic digestion and farm-based biogas systems!
If you’ll be attending, please stop by our table display and say hello. We’ll be sharing information about:
• Home-scale and community-scale biodigesters
• Hands-on educational workshops
• DIY biodigester construction resources
• Our book: How to Build a Solar CITIES IBC Tank Biodigester
• Sustainable waste-to-energy education initiatives
• Opportunities for collaboration, sponsorship, and board involvement
Whether you are a farmer, educator, student, sustainability professional, policymaker, nonprofit leader, or simply curious about practical biogas solutions, we would love to connect with you.
At Solar C³ITIES Solutions, we believe small-scale systems can make a big impact by turning organic waste into renewable cooking fuel and nutrient-rich fertilizer while educating and empowering communities.
Come meet our team, see our display, and learn more about how simple, affordable biodigester systems can help build a more sustainable future.
We look forward to seeing you there!
Learn more: https://SolarCITIES.SolutionsCITIES
Conference information: https://extension.psu.edu/anaerobic-digestion-on-the-farm

This multi-day national conference explores on-farm biogas systems through research, policy, and practice, featuring expert presentations, discussions, and tours focused on anaerobic digestion.

05/10/2026

To all the mothering souls…

05/10/2026

Celebrating innovation in action!

Dr. Thomas Henry Culhane, professor and director of the Climate Mitigation and Adaptation concentration at the Patel College of Global Sustainability, has been recognized with the USF Award for Innovation in Online Design and Teaching.

His work goes beyond the classroom—transforming how sustainability is taught by making science engaging, accessible, and yes… fun.

As President Moez Limayem shared during the ceremony, it’s this kind of innovation that strengthens our entire university community.

Congratulations, Dr. Culhane, on this well-deserved recognition and for continuing to inspire the next generation of sustainability leaders. 🌍💚

05/05/2026

04/16/2026

A simple idea — but one with powerful impact.

Recently, The Nairobian (THE STANDARD NEWSPAPER) featured our Pay-As-You-Cook biogas model at Dunga Beach in Kisumu — a solution designed for fish traders, hotels, and small food businesses.

Instead of relying on expensive and traditional fuels, users can now access clean cooking energy and simply pay for what they use.

As our CEO Dominic Wanjihia puts it:
“It works just like airtime — you pay for what you use, and it’s much cheaper and cleaner than traditional fuels.”

This model is not just about energy — it’s about:
• Affordable access to clean cooking
• Supporting small businesses
• Reducing environmental impact
• Building a circular economy around waste

It’s encouraging to see local innovation gaining recognition and showing what practical, scalable solutions can look like.

📖 Read the full article here:
https://www.standardmedia.co.ke/nyanza/article/2001545060/pay-as-you-cook-the-biogas-idea-fuelling-trade-in-kisumu

01/28/2026

📣 PRICE GOING UP SOON! 📖🐉
Right now, you can grab our downloadable book “How to Build a Solar CITIES IBC Tank Biodigester” for just $9.99 — but not for long!
With our newly printed version about to hit the shelves at $20, we’ll be raising the digital PDF price to $15 soon. So if you’ve been thinking about building your own “baby dragon” to turn food waste (or even p**p!) into cooking fuel and fertilizer, now’s the time to act!
✅ Easy step-by-step instructions
✅ Adaptable to local materials
✅ Great for homesteads, schools, and communities
🔥 Fuel your sustainability journey for less — before the price goes up!
👉 [Click on the book below!]
Thank you for supporting our mission to empower communities with biogas education and clean energy solutions. 💚🐉

There are many ways to build a back yard biodigester, however, the principles are all the same. Sold in dozens of countries across the world and widely used in R&D and STEM Education programs, How to Build a Solar CITIES IBC Tank Biodigester is the first in "A Biogas Education Series". Book 1 is a s...

11/17/2025

"What began as a humble backyard experiment on a mission to improve biogas efficiency has now been recognised on one of the biggest climate innovation stages.”

Solar CITIES is proud to be partnering with RAFT Energy!

We are proud to announce that we have been named the winner of the BE100 “Grow” category at the Blue Earth Summit 2025!What began as a humble backyard experiment on a mission to improve biogas efficiency has now been recognised on one of the biggest climate innovation stages.This reinforces the ...

10/04/2025

With unprecedented numbers of applicants, Solar CITIES did not make the finals, THIS TIME, but we HAVE been encouraged to continue our good works and enter again next year! It was an honor just to be invited to apply and, this time, placed in the running. Best of luck to all of the finalists for the Zayed Sustainability Prize, just to be in this network of amazing human beings is an honor.

06/30/2025

I would say that was a success!

06/25/2025

🔥 Only 3 Days Left! 🐉
Join us this Saturday in Glenmoore, PA for a hands-on biodigester workshop and learn how to build your very own baby dragon (aka: a Solar CITIES IBC Tank Biodigester)! 💨♻️

We’re keeping it simple with pre-cut kits, so you can focus on sanding, sealing, and connecting fittings—and learning everything you need to know to bring clean cooking gas and rich fertilizer to your backyard.

🛠️ Workshop Details & Tickets:
🎟️ https://www.zeffy.com/ticketing/hands-on-workshop-in-glenmoore

👨‍👩‍👧‍👦 Bring your questions, your curiosity, and maybe a snack (for yourself—not the baby dragon). We still have a few spots left, so don’t miss out!

Let’s build something amazing—together. 💚🐲

Join us at The Edge Farms’ First Annual Hands-On Biogas Workshop and Backyard Biodigester “Make and Take” SIGN UP BY MAY 31st for a $50 DISCOUNT using the code “EARLYBIRDIES”! Alexandra and Blake, Owners of The Edge Farms, will be building their own biodigesters. Other participants get a c...