# Man Powered Gyms ReRev Green Gyms Turn Kinetic Energy into Electricity By Marissa Liu | Published 2010-02-11 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/rerev-green-gyms References: [allword-news](http://www.allword-news.co.uk/2010/10/12/spinning-the-pedalpowered-gym/) & [rerev](http://rerev.com/) ReRev green gyms convert the kinetic energy generated from working out into usable electrical energy. A 30-minute workout on an elliptical machine generates about 50 Watts of power, enough to charge a mobile phone 6 times or run a laptop or desktop for 1 hour or 30 minutes, respectively. There are around 180 machines installed by ReRev green gyms around the US. Recently a set of [elliptical machines](https://www.trendhunter.com/trends/smart-fit-method) installed at the [University of Kansas](https://www.trendhunter.com/trends/zeidler-architecture) powered the University's basketball court during a game. Talk about [energy efficient workouts](https://www.trendhunter.com/trends/virtuagym-connect)! ## Trend Insights (Trend Hunter) - Score: 4.4/10 - Popularity: 47% | Activity: 78% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial - Top markets: North America, Europe, Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### What Makes This Trend Stand Out - **Kinetic Energy Conversion:** Opportunity for businesses to develop technologies that convert kinetic energy into usable electrical energy. - **Green Fitness:** Opportunity for fitness industry to adopt sustainable practices and promote energy efficient workouts. - **Energy Harvesting:** Opportunity to harness and utilize the energy generated during physical activities for various applications. ### Sectors Adopting This - **Fitness Equipment Manufacturing:** Manufacturers can integrate kinetic energy conversion technology into fitness machines for eco-friendly workouts. - **Renewable Energy:** Renewable energy companies can explore the potential of harnessing kinetic energy in various settings to generate electricity. - **Sports Facilities:** Sports facilities can adopt energy harvesting systems to power their facilities, reducing reliance on traditional energy sources. ## Related on Trend Hunter - [Power-Generating Desk Bikes](https://www.trendhunter.com/trends/lifespan-ampera.md) - [Productivity-Supporting Exercise Bikes](https://www.trendhunter.com/trends/acer-ekinekt-bd-3.md) - [Air-Powered Resistance Workout Machines](https://www.trendhunter.com/trends/energyfit-skirow-airpwr.md) - [Modular Smart Gyms](https://www.trendhunter.com/trends/fittransformer.md) - [Regenerative Cycling Equipment](https://www.trendhunter.com/trends/energy-keeper.md) - [AI-Powered Home Gyms](https://www.trendhunter.com/trends/aeke-k1.md) - [Interactive Home Workout Systems](https://www.trendhunter.com/trends/smart-home-fitness-system.md) - [Modular Exercise Machines](https://www.trendhunter.com/trends/modular-home-gym.md) - [Connected Gym Ecosystems](https://www.trendhunter.com/trends/connected-gym-ecosystem.md)