"I noticed the sign here one day and I like working on it even more now," Bonan-Hamada said.

Each day he looks to workout on one of eight special elliptical machines that Director of Campus Recreation Michael Wells says are one of a kind in Colorado.

"Really a state-of-the-art piece of machinery that no one in the state of Colorado has," Wells said.

The elliptical machines look like any other, but with a small adjustment, they can actually turn a workout and the amount of resistance a person applies into electricity.

"The more resistance you use the more time you spend working out the more you will give back," Wells said.

So very literally with each push and pull of the elliptical, those working out are burning their energy to create electricity.

It is called Re-Rev Technology, and while one 30-minute workout can generally power a laptop for an hour, the recreation center will soon go from their eight machines to 50, putting out a lot more juice.

"Once we reach our 40 to 50 machine max over the late summer early fall, then we think we'll make a big dent in the energy footprint on campus," Wells said.

That is enough to push Bonan-Hamada a little harder.

"It's putting energy back into the grid so extra incentive, go a little further a little harder," Bonan-Hamada said.

After all, as an associate math professor at Mesa State College, it is the kind of workout that he says just adds up.

"Just imagine if we could do this with everyone and every machine, kill two birds with one stone. People get fitter and we lower our carbon footprint," Bonan-Hamada said.

You can learn more about the Re-Rev technology by going to