MTSU's sweaty green tech

Middle Tennessee State University is installing a set of five energy-generating elliptical machines at its student health center.

With regular use, an elliptical machine using ReRev technology will generate one kilowatt hour of electricity every two days, according to documents provided by the company. That’s the same energy it takes to power a laptop for 24 hours or a vacuum cleaner for 45 minutes.

MTSU used a $30,000 grant and more than $6,000 generated by an $8 per student clean energy fee to buy the machines.