And I mean that literally…The Gainesville Health & Fitness Center is testing ReCardio, a technological “fix” which converts the kinetic energy of the elliptical machines into electrical energy.  Right now, 15 machines are hooked up to the system, and the power generated during cardio workouts is plugged back into the utility grid for use by the gym.

Each elliptical machine has the ability to produce one kilowatt of electricity every 10 hours, which is enough to charge the battery for a 2004 Toyota Prius once or a cell phone up to 397 times. In the last couple of months, since the Gainesville Health & Fitness Center has been testing the ReCardio system, about 150 kilowatts of electricity has been produced.

Apparently the recreational director at the University of Florida is thinking of adapting the technology to the Southwest Recreational Center.

Harr visited Bowles almost three weeks ago and conducted a demonstration where he hooked up an elliptical machine on the ReCardio system to a series of lights and was able to power them through exercise. Proposals to use ReCardio at UF are now under way.

Personally, I think it’s pretty nifty - it’s basically a way to recycle some of the energy you’re expending.  Sure, it’s not going to solve the energy crisis, but every little bit helps…and I imagine it would make cardio at the gym a little more tolerable - knowing that you’re producing a bit more than just a sweat.

(h/t That’s Fit)