Husk Insulation Wins $200,000 MIT Clean Energy Prize: Building Better Refrigerators from Rice Husks

In a ceremony attended by the state secretary of energy and environmental affairs, the director of energy initiatives at Google, and the CEO of NSTAR, the state’s largest utility, the $200,000 MIT Clean Energy Prize was awarded yesterday to a Michigan startup, Husk Insulation, whose innovations could help make refrigerators far more efficient—and roomier to boot.

Funded by NSTAR and the U.S. Department of Energy, the grand prize honors the student team with the most convincing and promising business plan for a successful energy or clean technology startup. It was part of over $500,000 in cash and in-kind prizes handed out to five student-led startups yesterday, including Husk and the winners in four subcategories of this year’s competition.

The Obama Administration has made the push for higher efficiency standards for household appliances, including refrigerators, a key part of its energy policy. In a three-minute “rocket pitch” for Husk before the prize announcement yesterday, Husk vice president of sales and marketing Erica Graham said the company’s patented technology—in which rice husk ash is converted into the core material for vacuum-sealed insulating panels—could increase refrigerator efficiency by up to 50 percent. Moreover, the superior thermal properties of this agricultural byproduct mean that a 1-inch-thick panel containing rice husk ash provides as much insulation as a 4-inch-thick panel filled with polystyrene. So refrigerators made with the new material could have 20 percent more interior space on the same footprint.

If every refrigerator in the United States were replaced with a model containing Husk Insulation’s material, the country could reduce its annual electricity consumption by 57 billion kilowatt hours—the equivalent of closing 31 coal-fired power plants, Graham said. Such a reduction would cut the nation’s overall carbon-dioxide emissions by 1.5 percent. And that’s not even counting the reductions in petroleum consumption that would come from avoiding polystyrene.

MIT Clean Energy Prize winners -- Husk InsulationWalking away from the competition with a $200,000 check was “exhilarating,” Graham told Xconomy after the announcement. “There were so many teams that were very qualified. We’re very excited.”

Graham said the money would be a key part of the seed round for Husk, which advanced to the finals of the clean energy competition by winning in the biomass category—an achievement that itself carried a $10,000 prize, sponsored by the Massachusetts Technology Collaborative’s Renewable Energy Trust. The money “will help us get to a market-ready prototype,” Graham said.

Husk has been making the rounds of the cleantech business-plan competitions. In March, the startup won second prize in the Cleantech Venture Challenge hosted by the Deming Center for Entrepreneurship at the University of Colorado at Boulder’s Leeds School of Business. The same month, it won the $21,000 second-place award in a clean energy prize competition in Ann Arbor, MI, sponsored by Detroit-based utility DTE Energy.

The other finalists competing for the $200,000 grand prize included three startups led by MIT students and one led by students from Rensselaer Polytechnic Institute (RPI) in Troy, NY. Bob talked with students from several of the teams at last Friday’s reception for MIT-affiliated finalists in the Clean Energy Prize Competition and the MIT $100K Entrepreneurship Competition.

Levant Power, as winner of the transportation category, collected a $10,000 prize sponsored by Sandia National Laboratory’s Combustion Research Facilities. The company is developing an energy-recovering shock absorber for military vehicles, large trucks, and hybrid gas-electric cars. Founder Shakeel Avadhany, an MIT undergraduate, says the device can increase vehicle fuel economy by … Next Page »

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Wade Roush is the producer and host of the podcast Soonish and a contributing editor at Xconomy. Follow @soonishpodcast

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  • Wow, that’s quite an achievement. I never would have thought that could have been done using rice husks.

    black refrigerator

  • MR

    Also from MIT! Making Clean Energy a viable business opportunity. MIT now offering executive education program Clean Energy Ventures: Creating Innovative New Businesses Through Entrepreneurial Management http://www.mitexeced.com/cev

  • Ben

    Congrats to Husk Insulation. This is a splendid achievement, indeed! In my country, a group of engineers are aiming to introduce vehicles that run solely on vegetable oil. They’ve already experienced some success with it, which is enormously encouraging! Battle Ops Bumblebee

  • Promoting the use of recyclicable and biodegradable insulating materials is a huge step in the right direction and hopefully we can look forward to replacing all polystyrene packaging too. Maybe we are learning, at last, to value our environment. Good luck to the “Husk” guys!

  • It’s a great idea to use the rice husk material like this in refridgerators. Hopefully they will be able to use their prize money in further R&D to replace the oil-based insulating materials in many other situations as well. Anything that lessens our dependency on oil is a big step in the right direction.