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You can’t yet buy E85 cellulosic ethanol anywhere because no one is making it in commercial quantities, though plenty of companies, like Mascoma and partners DuPont and Danisco are working toward commercial production. POET, the big ethanol producer based in Sioux Falls, South Dakota, provided the cellulosic ethanol for Holm’s cross country trip. Holm has to bring this advanced fuel with him, so when we were driving around San Francisco he had 200 gallons of it in the back of his truck. That should be enough to get him to South Dakota, where he can pick up some more corn-cob ethanol from POET before heading further east.
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