Last year we reported on the ongoing sustainable makeover of the Eiffel Tower's first-floor. Work continues on turning the tower green, and as part of this process, New York's Urban Green Energy (UGE) recently installed two wind turbines that should reduce the carbon footprint of the iconic landmark.
The two turbines – a couple of VisionAIR5 vertical axis wind turbines to be precise – were installed in partnership with the Société d’Exploitation de la Tour Eiffel (SETE), the body responsible for maintaining the Eiffel Tower. Located above the second floor, some 121 m (400 ft) off the ground, the turbines should be well situated to harness the prevailing wind. The engineering team was required to hoist them into place with ropes.
UGE expects the turbines to produce over 10,000 kWh per year. Though this won't be sufficient to cover the Eiffel Tower's entire electricity needs, the firm reckons it should reduce the grid-based requirements of the first floor's commercial spaces by a significant amount.
Naturally, if you're going to tinker with the appearance of one of Europe's most iconic examples of architecture, you'll want to tread carefully. With this in mind, UGE painted the turbines to match the tower, and judging from the photos, they seem to fit in quite well with the overall design of the tower.
Source: UGE
I would also like to see their measured wind speed figures at the turbines sites because the turbulence is going to be something horrible considering these are inside the tower framework.
That being said, I see nothing wrong with bringing more attention to renewable energy.
I'm pleased to see that the turbines have a vertical axis, but since it will be built within an existing structure, the base of the axis could have been reduced considerably by joining the blade mechanism at its top as well. Painting and building it inside to blend in with the tower is thoughtful and avoids any clash.
At first glance I was wondering if this was an ill-conceived idea, but I definitely endorse this concept.
VisionAIR5 Turbine Max Generator UL Rated = 3.2 kW Average output = 2.5 kW (that’s less than a kettle + a microwave) http://www.urbangreenenergy.com/products/visionair/specifications
They claim “the 2 turbines are capable of delivering 10,000kWh of electricity annually” - BUT -
The Eiffel Tower consumes 7.8 million kWh of electricity per year (the equivalent of a small village), including 580,000 kWh for all its lights and 705,000 kWh of heating and air conditioning are also required every year, + cooking , 9 lifts & water pumps for 60,000 m3 of drinking water, etc. The monument also uses 20,000 lamps‘to make it sparkle every night’, for 10 minutes on the hour. Even Jan Gromadzki, an engineer with the New York-based Urban Green Technology (the company was tasked with designing and installing the turbines), said “It’s just a small drop in the ocean.” “This installation is definitely more symbolic,” Read more: http://thelibertarianrepublic.com/france-ruined-eiffel-tower-wind-turbines/#ixzz3TaY8xJLz & http://www.telegraph.co.uk/news/worldnews/europe/france/9444530/Eiffel-Tower-goes-green.html
Do the maths….You would need 1,560 of these units to power the tower….IF the wind was blowing!!