Turnstile Turbine - Paris generates clean energy from Metro Passengers
- Green Business Talks
- Nov 20, 2024
- 2 min read
Updated: Dec 24, 2024
From the World Economic Forum (WEF)
Energy from IBERDROLA converted 6 turnstiles into mini-turbines at Miromesnil Metro station. For 2 days last year, as each passenger passed through the turnstiles, the turbines converted their moment into green energy. 27,000 passengers used the turnstiles.
The potential of Turnstile Turbines Technology - If scaled across the entire Metro system, which serves "1.5 Billion passengers annually, this technology could generate 136 MW per year and save 30,000 tonnes of CO2 emissions annually."
The aim of this technology was to raise awareness about the energy transition and the challenges we face in getting there. Global renewable energy capacity grew by almost 10% last year, but it needs to increase 3 times faster by 2030 if we are to limit global warming to 1.5 °C or less.
The link of the youtube article is as :
A turnstile wind turbine, also known as a vertical-axis wind turbine (VAWT), is a type of wind energy device that differs in design and operation from the more common horizontal-axis wind turbines (HAWT). While HAWTs have large blades that rotate around a horizontal axis, VAWTs have blades that spin around a vertical axis, much like a turnstile or a merry-go-round.
The first ever underground wind turbine that turns commuter's energy into green energy. The system is inspired by automatic watches and real wind turbine mechanisms. The commuter operates the blades as a usual turnstile it drives a series of multiple gears which rotate a flywheel powering a direct current motor.

The initial challenge was to transform a very small movement into continuous energy. This challenge becomes the opportunity and the turbine produces more than 2000 watts per day.
Turnstile wind turbine generates enough energy to power an entire line and saves more than 30,000 tonnes of CO2 per year. 30,000 tonnes is equal to the following factors,
To conclude, the turnstile wind turbine is a unique and innovative technology that harnesses wind or human movement to generate electricity. It's important to note that the energy output of turnstile turbines is relatively modest compared to traditional wind turbines. They are most effective in locations with high foot traffic or consistent wind patterns.
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