Q&A

From NASA to HVAC: How this Houston tech startup is revolutionizing energy-efficient air conditioning

Rawand Rasheed, the CEO and founder of Helix Earth Technologies, joins the Energy Tech Startups podcast. Photo via LinkedIn

Excessive energy consumption in air conditioning systems is a pressing issue with far-reaching implications for carbon emissions and climate change.

Rawand Rasheed, the CEO and founder of Helix Earth Technologies, is at the forefront of addressing this challenge. With a distinguished background as an aerospace engineer with NASA, Rawand’s expertise is now channeled towards the built environment and heavy industries.

In a recent episode of Energy Tech Startups, we dive into how Rawand’s journey from space technology innovations is now revolutionizing energy consumption in air conditioning systems.


In an era where the urgency to combat climate change is palpable, innovators like Rawand Rasheed are making monumental strides in bridging the gap between space-age technology and sustainable solutions for our planet. Drawing from her unique experiences at NASA and her unwavering commitment to the environment, Rawand's work with Helix Earth Technologies exemplifies the transformative potential of cross-disciplinary expertise. As we witness the evolution of her groundbreaking technology in the HVAC sector, it serves as a potent reminder that with determination, innovation, and a clear vision, we can indeed reshape our world for the better. The future of energy-efficient air conditioning, and by extension, a more sustainable world, is on the horizon, and pioneers like Rawand are leading the way.

Energy Tech Startups: How did your experience at NASA inspire your work in decarbonization and HVAC?

Rawand Rasheed: At NASA, we often faced unique challenges that required innovative solutions, especially in space. One such challenge was fighting fires in space using a micrometer-sized droplet spray of water. This led us to develop an efficient filter that could capture these small droplets without any moving parts. This technology, initially designed for space, turned out to have significant implications for climate tech, particularly in capturing and filtering air streams.

ETS: How does your technology help in reducing energy consumption in air conditioning systems?

RR: Our technology can significantly reduce air conditioning energy loads, cutting them by over 50%. It works by absorbing more from air streams, making the cooling process more efficient. Currently, we're focusing on commercial HVAC systems and are close to scaling our system to a commercial unit. Within the next year, we aim to demonstrate the effectiveness of our system at this scale through pilot projects.

ETS: How did your early life shape your entrepreneurial aspirations?

RR: Growing up, I witnessed firsthand the power of determination and hard work. Starting from scratch, both culturally and financially, and achieving success made me believe that anything is possible. This belief, combined with my passion for the environment and engineering, always fueled my desire to start a company. My graduate studies further solidified this aspiration, merging my interests and leading me to establish my own venture in the realm of environmental engineering.


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This conversation has been edited for brevity and clarity. Click here to listen to the full episode. Hosted by Jason Ethier and Nada Ahmed, the Digital Wildcatters’ podcast, Energy Tech Startups, delves into Houston's pivotal role in the energy transition, spotlighting entrepreneurs and industry leaders shaping a low-carbon future. Digital Wildcatters is a Houston-based media platform and podcast network, which is home to the Energy Tech Startups podcast.

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A View From HETI

The Carbon to Value Initiative has named its fifth cohort of global startups. Photo courtesy of Greentown Labs

The Carbon to Value Initiative (C2V Initiative)—a collaboration between Greentown Labs, NYU Tandon School of Engineering's Urban Future Lab and Fraunhofer USA—has announced 10 startup participants to join the fifth cohort of its carbontech accelerator.

The six-month accelerator aims to help cleantech startups advance their commercialization efforts through access to the C2V Initiative’s Carbontech Leadership Council (CLC). The invitation-only council consists of corporate and nonprofit leaders from organizations like Shell, TotalEnergies, XPRIZE, L’Oréal and others who “foster commercialization opportunities and identify avenues for technology validation, testing, and demonstration,” according to a release from Greentown

“The No. 1 reason startups engage with Greentown is to find customers, grow their businesses, and accelerate impact—and the Carbon to Value Initiative delivers exactly that,” Georgina Campbell Flatter, CEO of Greentown, said in a news release. “It’s a powerful example of how meaningful engagement between entrepreneurs and industry turns innovation into commercial traction.”

The C2V Initiative received more than 100 applications from 33 countries, representing a variety of carbontech innovations. The 10 startups chosen for the 2025 fifth cohort include:

  • Cambridge, Massachusetts-based Sora Fuel, which integrates direct-air capture with direct conversion of the captured carbon into syngas for production of sustainable aviation fuel
  • Brooklyn-based Arbon, which develops a humidity-swing carbon-capture solution by capturing CO₂ from the air or point-source without heat or pressure
  • New York-based Cella Mineral Storage, which works to develop subsurface mineralization technology with integrated software, enabling new ways to sequester CO2 underground
  • Germany-based ICODOS, which helps transform emissions into value through a point-source carbon capture and methanol synthesis process in a single, modularized system
  • Vancouver-based Lite-1, which uses advanced biomanufacturing processes to produce circular colourants for use in textiles, cosmetics and food
  • London-based Mission Zero Technologies, which has developed and deployed an electrified, direct-air carbon capture solution that employs both liquid-adsorption and electrochemical technologies
  • Kenya-based Octavia Carbon, which develops a solid-adsorption-based, direct-air carbon capture solution that utilizes geothermal heat
  • California-based Rushnu, which combines point-source carbon capture with chemical production, turning salt and CO2 into chlorine-based chemicals and minerals
  • Brooklyn-based Turnover Labs, which develops modular electrolyzers that transform raw, industrial CO2 emissions into chemical building blocks, without capture or purification
  • Ontario-based Universal Matter, which develops a Flash Joule Heating process that converts carbon waste such as end-of-life plastics, tires or industrial waste into graphene

The C2V Initiative is based on Greentown Go, Greentown’s open-innovation program. The C2V Initiative has supported 35 startups that have raised over $600 million in follow-on funding.

Read about the 2024 cohort here.

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