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# Energy-Generating Revolving Doors
NL Coffee Shop Harnesses Kinetic Energy

By Marissa Brassfield | Published 2008-12-10 | Eco
Source: Trend Hunter, https://www.trendhunter.com/trends/revolving-door-kinetic-energy
References: [boonedam.us](http://www.boonedam.us/inc/press/pressdetail.asp?PressId=182)

One of the most popular conservation mantras is the idea that every eco-friendly measure counts, no matter how small and insignificant it seems. NatuurcafÃ© La Port, a coffee shop in the Netherlands, proves this point with a revolutionary new revolving door that harnesses kinetic energy each time it's opened.

Traditional revolving doors are a hotel, airport and department store standby because they are far more effective at keeping out drafts in high-traffic areas than regular doors. The revolving door built by Boon Edam at NatuurcafÃ© La Port goes one step further by [capturing the kinetic energy](https://www.trendhunter.com/trends/mag-drive) as customers enter and exit the coffee shop.

NatuurcafÃ© La Port's kinetic energy-capturing revolving door generates about 4600 kWh per year, or enough to power a U.S. household for about [five months](http://tonto.eia.doe.gov/ask/electricity_faqs.asp).

## Trend Insights (Trend Hunter)

- Score: 2.4/10
- Popularity: 28% | Activity: 36% | Freshness: 8%
- Audience gender: 50% men, 50% women
- Primary generations: Millennial
- Top markets: North America

## Categories

[Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco)

## Key Themes

### Key Themes Behind This Trend

- **Kinetic Energy Harvesting:** The trend of harnessing kinetic energy from everyday activities to generate electricity, such as through revolving doors.
- **Eco-friendly Technology:** The trend of developing and implementing technologies that are environmentally friendly and sustainable, like energy-generating revolving doors.
- **Energy Efficiency:** The trend of optimizing energy usage and reducing waste through innovative solutions like the kinetic energy-capturing revolving doors.

### Where This Applies

- **Green Building:** The industry that focuses on constructing and designing sustainable buildings, where energy-generating revolving doors could be a valuable addition.
- **Renewable Energy:** The industry that deals with alternative sources of energy, which can be paired with kinetic energy-harvesting technologies for greater efficiency.
- **Hospitality:** The industry that provides accommodation and food services, where energy-generating revolving doors can contribute to sustainable practices and energy cost savings.

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