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Staying cool shouldn’t ruin the environment.

Transaera is developing a new class of 
affordable, energy-efficient, sustainable cooling systems.

Staying cool shouldn’t ruin the environment.

Transaera is developing a new class of  affordable, energy-efficient, environmentally-friendly cooling systems.

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Our Vision

Cooling is set to become the world’s single largest use of electricity in buildings by 2050. The majority of new demand will come from emerging economies with hot and humid climates and a growing middle-class.

As a result, air conditioning represents one of the largest risks to our climate. Residential use alone is set to account for an increase of more than 0.5 ⁰C in global surface temperature.

Today’s air conditioners consume more energy in humid conditions. Transaera is developing one that doesn’t.

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Our Technology

We use a novel sponge-like material that grabs moisture from the atmosphere enabling our air conditioner to cool the air more efficiently. Then we use the heat generated by the air conditioner – instead of wasting it – to dry the material for the next cycle.

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Transaera was named one of eight finalists in the Global Cooling Prize, an international innovation competition to develop an affordable and sustainable residential air conditioner.

Transaera News

Transaera named one of eight Energy Innovation Pioneers at CERAWeek 2022

The Energy Innovation Pioneers program, held annually at CERAWeek, identifies the most innovative new technologies and business models across the energy spectrum based on judging criteria that includes creativity, feasibility of plan, scalability of technology and leadership. The program is now in its 17th year.

How to avoid the coming air conditioning crunch

Air conditioning represents one of the most insidious challenges of climate change, and one of the most difficult technological problems to fix. Transaera, cofounded by MIT energy professor Mircea Dincă, is attempting to significantly improve efficiency by tackling the humidity in air as a separate step.

Global Cooling Prize Recognizes Transaera’s Residential Cooling Technology

Upon completing a rigorous field and lab testing schedule in India, Team Transaera-Haier was one of only four remaining teams to make it to the Grand Prize round, having demonstrated a significant reduction in climate impact.

How to make air conditioning less of an environmental nightmare

Cooling prize finalist Transaera is developing a “novel sponge-like” material that could improve air conditioners’ efficiency by passively sucking moisture out of the air.

How Greentown Labs became the epicenter of clean tech

A serendipitous discovery in Transaera’s founders’ journey led to the formation of Greentown Labs, the epicenter of clean tech in the US. The incubator’s winding journey to success helped its startup community grow closer while addressing environmental challenges.

The race is on to build an AC unit that doesn’t cook the planet

One of the great ironies of climate change is that as the planet warms, the technology that people need to stay cool will only make the climate hotter. By 2050, researchers expect the number of room air conditioners on Earth to quadruple to 4.5 billion, becoming at least as ubiquitous as cell phones are today.

People at Transaera

CEO & Co-Founder

Sorin Grama

CEO & Co-Founder

Prior to Transaera, Sorin co-founded and served as CEO and CTO of Promethean Power Systems, a manufacturer and operator of cold-storage systems for preserving fruits, vegetables and milk in emerging markets.  Sorin is one of the founders of Greentown Labs, a grassroots effort which has grown to become the nation’s largest cleantech incubator. He is trained as an electrical engineer and holds an MS in Engineering & Management from MIT where he co-teaches a product design course. He is originally from Romania.

Co-Founder & Chief Scientist

Mircea Dincă

Co-Founder & Chief Scientist

Mircea is the W. M. Keck Professor of Energy in the Department of Chemistry at MIT. He holds a PhD from University of California, Berkeley where the did his studies on metal-organic framework (MOF) materials under the supervision of Prof. Jeffrey Long. In 2010 he started his own lab at MIT to address research challenges related to the storage and consumption of energy and global environmental concerns. Mircea’s research focuses on metal-organic materials, with an emphasis on water adsorbing and energy storage materials. 

CTO

Ross Bonner

CTO

Ross brings broad design experience from his background in aerospace. A graduate of GE Aviation’s Edison Engineering Development program, Ross has domain expertise in systems architecture, fluids, and heat transfer. Ross earned his Bachelor of Mechanical Engineering from Auburn University and a Master in Mechanical Engineering from MIT. His thesis work on novel energy efficient desiccant-based air conditioning systems brings valuable perspective to the team. 

Advisor & Board Member

Mitch Tyson

Advisor & Board Member

Mitch Tyson is an experienced high-tech executive, entrepreneur, angel investor, mentor, and lecturer. He serves on multiple corporate, non-profit, and governmental boards and advises early-stage companies. He is a former CEO of tech and cleantech companies and earlier served as legislative assistant for energy and science advisor to US Senator Paul Tsongas. Mitch is the co-founder and former chair of the Northeast Clean Energy Council, a partner in the Clean Energy Venture Group, and serves on the boards of Greentown Labs and Acadia Center. He was an adjunct professor at Brandeis where he taught a course on corporate sustainability. Mitch is a graduate of MIT where he earned his BS – Physics, MS – Nuclear Engineering, and MS – Political Science.

Technical Advisor

Alec Stevens

Technical Advisor

Alec is the owner of Demand Management Institute (DMI), a Massachusetts-based engineering consulting company that specializes in energy efficiency in the built environment.  Alec has over 20 years of experience in providing  third party independent reviews of efficient equipment, new technology, and advanced control sequences.   Alec’s knowledge of HVAC and refrigeration systems ranges from small packaged equipment to large central heating and cooling plants. Prior to DMI, Alec was a designer for a startup EV company and an engineer at Ford Motor Company.  He has a mechanical engineering degree from Cornell University and is a licensed Professional Engineer in Massachusetts.    

Business Advisor

Jim Matheson

Business Advisor

Jim is a highly respected clean technology visionary, business leader and active investor. He’s currently a Senior Lecturer at Harvard Business School where he teaches the Entrepreneurial Finance course.  Jim served as President and CEO of Oasys Water, a pioneer in water filtration technology. Previously, as a General Partner at Flagship Pioneering, Jim spearheaded the venture capital firm’s sustainability practice. Before embarking on his second career in investing and entrepreneurship, Jim was a decorated Navy F-14 and FA-18 pilot and TOPGUN Instructor. Jim retired in 2008 as a Commander in the US Naval Reserves and earned his BS from the United States Naval Academy and his MBA from The Harvard Business School.

Careers Work with us

If you have the skills and patience for solving difficult problems,
please join us!

Our Partners

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saint-gobain
mcec
mit
nsf
greentown

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