Group works on grass energy project, 6 July 2007, Burlington Free Press, Burlington,VermontSome of the high schoolers simply stared or sneezed at the flaky dust pouring out of the noisy, trailer-mounted hammer mill parked Tuesday outside the University of Vermont’s Votey Hall.
The stuff had once been a hay bale. Some calculated its worth in BTUs.
By late afternoon the pelletizer had created enough heat to warrant its shutting down, said Rain Palmer, 16. A home schooler, he’d been helping his father, Nate Palmer of Ferrisburgh, demonstrate the machine.
In their spare time, the father-and-son team had built a biomass still in their garage.
posted by Valerie