Green gyms focus on high-power workouts, low-power usage

With the cycles, the flat-screen TVs and, of course, the air conditioning, most people who exercise at gyms are working out the electrical grid along with their muscles. But the members of AC4 Fitness in Goleta will be generating power and feeding it back to the grid every time they step on a treadmill or elliptical. When they need a drink, they'll have to bring their own refillable bottle and get water from a hydration station that provides free water filtered with reverse osmosis. And when they stash their belongings, they'll do so in lockers made from recycled plastic.

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