I’ve heard of so many different reasons why Portland, Oregon is a great, green place to live, but when I read about its new Green Microgym I was truly convinced of the city’s eco-friendliness.

This gym aims to become the first human-powered gym in the U.S., according to personal trainer and owner Adam Boesel.

Despite the gym being 2,800 square-feet, Boesel hopes that using both solar and human energy will “move the human powered renewable energy technology to the next level.”

I must admit that I think this is a great idea, but I needed to find further proof this this gym wasn’t just created by a couple of meatheads who jumped on the green bandwagon.

So here are a few of 15 reasons why the gym is green, straight from the website:

• SportsArt EcoPowr Treadmills (which use 30% less electricity)
• Recycled rubber, marmoleum, and eco-friendly cork flooring
• Solar panels that generate 3 kilowatts per hour
• Team Dynamo and Spin Bikes generate up to 750 watts per hour

But the best reason, by far, is:

• Toilet seat covers in the bathrooms are made from recycled content

Nothing says a green gym better than recycled toilet seat covers.

You can see the complete list of green reasons here.

I think this is a genius idea, and if it becomes a success it could revolutionize the way gyms operate throughout the U.S. (not to mention provide potential friendships between meat eaters with muscles and vegans who like yoga).