LIVE on October 15th: Speaker Series 12:00 p.m.-4:00 p.m. WATCH LIVE
LIVE on October 15th: Speaker Series 12:00 p.m.-4:00 p.m.

The Event

Orange County Sustainability Decathlon 2023

The Orange County Sustainability Decathlon challenges university teams to design and build model solar-powered homes that address climate change and California’s housing needs. OCSD teams will showcase innovative, market-ready model homes to display in a sustainable village that will be open to the public.

October 15th Schedule

OC Promenade

Innovative Offsite Housing Showcase at The Gateway Decathlon

Presented by Bobby Vance
10:00 AM - 10:45 AM

A Sunshine-Powered Future

Presented by Deep Patel
11:00 AM - 11:45 AM

Oman EcoHouse Design Comptetition

Presented by Mike Wassmer, OC Sustainability Decathlon Competition Director
12:00 PM - 12:45 PM

A New Way to Build + A New Way to Live

Presented by Bobby Vance
2:00 PM - 2:45 PM

Adam's Falconry

Presented by Giavanna Baham
3:00 PM - 3:45 PM

Sustainability Village

Public Exhibit Hours

10:00 AM - 9:00 PM

Guided Model Home Tours

10:00 AM - 4:00 PM

Food and Drinks

12:00 PM - 9:00 PM


Tower Garden


Child Creativity Lab


Wyland Clean Water Mobile Learning Center

Rev Hub OC

Steam Student Showcase

Citizens Climate Lobby


Flutterby Ranch

Electric Bikes of Newport Beach

NorthStar OC

Vallastere Landscape Design & Photography

Renewal by Anderson


Adam’s Falconry

Crossroads Trading

Climate Reality OC

Western Lighting & Energy Controls (featuring ESPEN EV)

Enhance your Experience

Register for FREE to unlock the full OCSD experience. Our OCSD app features priority access to model homes, real-time updates, announcements about surprise giveaways, exclusive networking access to vendors, exhibitors, and speakers, and a special invitation to our VIP reception on Opening Day, October 5th.
OCSD Mobile App

#OCSD23 Instagram Highlights

Error validating access token: Session has expired on Sunday, 17-Mar-24 21:06:05 PDT. The current time is Monday, 24-Jun-24 20:58:31 PDT.
No items were found matching your selection.

Main Event

October 5-8 and 12-15, 2023

The OCSD is a new collegiate competition focused on sustainability. Fourteen teams, many from California, have spent the last two years designing and constructing sustainable, ultra-efficient homes that represent the transition to renewable energy. These houses will be on display in a sustainable village for visitors to tour.

Event Highlights

Event Schedule

Thursday & Friday: 3:00 p.m. – 9:00 p.m.
Saturday & Sunday: 10:00 a.m. – 4:00 p.m.*

Guided Model Home Tours
Thursday/Friday: 3:00 PM – 9:00 PM
Saturday/Sunday: 10:00 AM – 4:00 PM*

Education Day
Friday, October 6 @ 9:00 AM – 1:00 PM

OCSD Career and College Fair
Friday, October 13 @ 3:00 PM – 6:00 PM

*Note: The village will remain open to enjoy until 9:00 p.m. Home tours conclude at 4:00 p.m. on weekends.


OCSD admission is FREE and parking is offered at the fairgrounds for $12 per car. Save and go green by OC Bus, powered by renewable energy and part of OCTA’S commitment to a balanced, equitable, and sustainable transportation network.

Food and beverages are available for purchase in the village and beer gardens.


OC Fair & Event Center
88 Fair Drive, Costa Mesa, CA 92626
Entrance: The Main Mall
Building: OC Promenade & Lot I

#OCSD23 TikTok Challenge!

The Orange County Sustainability Decathlon is thrilled to announce the hottest social media challenge of the year!

Show us your creativity, passion, and commitment to a sustainable future in the most fun and engaging way. This challenge is for YOU!

Here’s what you need to do:

  1. Follow @ocsdecathlon on TikTok.
  2. Duet the pinned video.
  3. Use the hashtags #OCSDTok and #OCSD23 in your caption.
  4. Tag two friends to join the movement.

The most inspiring, entertaining, and impactful video will win a bag of OCSD swag, and they will have a personal photo taken with Mr. Bojangles, an OWL! Sunday at 3:00 p.m. (PST).

The Challenge ends October 15 at 12:00 p.m. (PST). Don’t miss your chance to be part of the sustainability revolution. Let’s make a difference, one post at a time!

TikTok Challenge
A child and his teacher learning about sustainable wind energy with a classroom model of a wind turbine

Education Day

October 6, 2023

Education Day is a unique educational opportunity for K-12 students to learn about the environmental challenges we face and how living more sustainably can help combat climate change.We’re excited to welcome the next generation of sustainability advocates to the OC Fair & Event Center on October 6, 2023!

Nearly 5,000 Students Attend Education Day!

Join us on an unforgettable journey as we take you inside the Orange County Sustainability Decathlon’s Education Day, which took place October 6, 2023. We’re bringing you exclusive footage of nearly 5,000 enthusiastic K-12 students exploring the future of sustainable living. Watch as they engage with cutting-edge innovations, eco-friendly technologies, and passionate experts, all in the name of a greener, more sustainable world. Get ready to be inspired by the next generation’s commitment to environmental stewardship and their boundless curiosity for a better, brighter future!

Career and College Fair

October 13, 2023

The OCSD Career and College Fair is an opportunity for jobseekers and prospective students to explore sustainability-related jobs and academic programs recruiting talented and passionate people to join their efforts in the fight against climate change.

Bring your resume and business cards when you connect and network with industry leaders and other like-minded individuals on October 13, 2023!

Additional Activities to Explore at OCSD 2023

You can look forward to many companies and guests between October 5 – 15 for our inaugural OCSD event. Here are some of the experiences you can expect during our sustainability festival:
Wyland Mobile Science Lab
We’ve partnered with the Wyland Foundation to bring in their mobile exhibit about marine life in California. The Wyland Mobile Science Lab will be on-site during all eight public exhibit days.
Falcon Expert
We’re excited to introduce our special guest, Adam the Falconer, to the stage for a presentation about California’s natural habitat, the importance of not using pesticides, and educating the public on our local bird population! Our falcon expert will be on site for Education Day and both weekends during OCSD.
Fire Dept.
The fire departments in Orange County are committed to fighting fires, saving lives, and reducing their carbon footprints. We have one of the fire departments here to showcase drones that prevent and combat wildfires.
Child Creativity Lab
The Child Creativity Lab joins OCSD to educate children on the importance of reducing, reusing, and recycling. We will have home-building kits for kids using reusable materials. They’ll be there for all 8 days!
US Army
We have the US Army on-site for a robotics demonstration used for disaster relief efforts, solar panels used in the field (remote areas), STEM-related activities, and careers in the US Army.
US Green Build Conference – Los Angeles (USGBC-LA)
The USGBC-LA partners with OCSD to provide STEM Kits for teachers/faculty. There will also be an opportunity to book a workshop at each school.
Pacific Marine Mammal Center
Sustainable living impacts wildlife too! The Pacific Marine Mammal Center rescues and rehabilitates marine life and advances ocean conservation through their work. They will have workshops at OCSD on pollution and animal rescue along Southern California.
Tower Garden
One of the best ways to live more sustainably is to grow a green thumb! Tower Garden helps you get started with supplies for growing plants at home. They will lead a discussion on decreasing your carbon footprint and host a workshop on growing plants at home with 10% water use of traditional gardens.
Leave No Trace
If you love the outdoors and hiking, you won’t want to miss Leave No Trace, the organization that teaches you how to protect nature. They’re at OCSD to lead a discussion on how to be a responsible trail hiker in Southern California.
Department of Education
The Department of Education will present a documentary on the Dream Big project, which provides academic support to the youth in underserved communities. There will also be a mini design-and-build competition, inspired by our main event, for pre-selected middle school students in the OC Promenade!
Spyder Lab
Spyder Lab is a school program that inspires the next generation of entrepreneurs looking to start their own businesses. They will feature a high school exhibit that showcases 3D printing from new reusable and sustainable filament. The team also created the trophies for our Decathlon from an original design by one of their students!

More Information

For more information, please email

Enhance your Experience

Register for FREE to unlock the full OCSD experience. Our OCSD app features priority access to model homes, real-time updates, exclusive networking access, and much more!