May 17, 2020

Wind Power Without Blades

energy digital
Wind power
Atelier DNA
Masdar
Admin
2 min
A New York design firm's new design captures the power of wind, minus the blades, noise and other disadvantages of traditional turbines
A design firm from New York, Atelier DNA, has developed a concept that uses cattail like stalks instead of traditional turbine blades for harnessing t...

 

A design firm from New York, Atelier DNA, has developed a concept that uses cattail like stalks instead of traditional turbine blades for harnessing the power of wind. Planned for the city of Masdar, being built just outside of Abu Dhabi, the “Windstalk” project came in second in the Land Art Generator competition, generating renewable energy in an artistic way from a plethora of international submissions.

Traditional wind turbines' biggest downfalls include noise pollution, inadvertent bird death trapping and general difficulties in installing such large structures. Atelier's new stalk design generates electricity when the wind sets them waving—minus the dreadful noise or danger posed to birds. Another advantage will be the density at which the stalks will be able to be built whereas turbines need to be spaced about three times the rotor's diameter from each other.

The pilot project calls for 1,203 stalks at 180 feet high each, anchored by concrete bases that are between 33 and 66 feet wide. With each stalk containing alternating layers of electrodes and ceramic discs that generate a current under pressure, the discs compress as they sway, creating a charge.

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“The idea came from trying to find kinetic models in nature that could be tapped to produce energy,” explained Atelier DNA, founding partner Darío Núñez-Ameni, to Discovery. “Our system is very efficient in that there is no friction loss associated with more mechanical systems such as conventional wind turbines.”

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Each base contains a torque generator to convert kinetic energy into energy using shock absorber cylinders. An LED lamp glows at the top of each stalk when the wind is blowing.

“Windstalk is completely silent, and the image associated with them is something we're already used to seeing in a field of wheat or reeds in a marsh. Our hope is that people living close to them will like to walk through the field -- especially at night -- under their own, private sky of swarming stars,” Núñez-Ameni told Discovery.

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The wind farm is expected to have a comparable output to that of a conventional wind farm covering the same area of land.

 

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Apr 20, 2021

Amazon's renewable energy projects surpass 200 milestone

Amazon
Renewables
Solar
Netzero
Dominic Ellis
2 min
Nine new projects announced today takes Amazon's renewables portfolio beyond 200 projects

Amazon claims it is now Europe's largest corporate buyer of renewable energy as its projects surpassed 200 globally.

Broken down, it has 136 solar rooftops on facilities and stores and 71 utility-scale wind and solar projects, nine of which were announced today covering the US, Canada, Spain, Sweden and UK. They include:

First solar project paired with energy storage Based in California’s Imperial Valley, Amazon’s first solar project paired with energy storage allows the company to align solar generation with the greatest demand. The project generates 100MW of solar energy, and includes 70MW storage.

First renewable project in Canada An 80 MW solar project in the County of Newell in Alberta. Once complete, it will produce over 195,000MWh of renewable energy to the grid.

Largest corporate renewable energy project in the UK Amazon’s newest project in the UK is a 350MW wind farm off the coast of Scotland and is Amazon’s largest in the country. It is also the largest corporate renewable energy deal announced by any company in the UK to date.

New projects in the US Amazon’s first renewable energy project in Oklahoma is a 118 MW wind project located in Murray County. Amazon is also building new solar projects in Ohio’s Allen, Auglaize, and Licking counties. Together, these Ohio projects will account for more than 400MW of new energy procurement in the state.

Additional investments in Spain and Sweden In Spain, Amazon’s newest solar projects are located in Extremadura and Andalucia, and together add more than 170 MW to the grid. Amazon’s newest project in Sweden is a 258 MW onshore wind project located in Northern Sweden.

It now has more than 2.5 GW of renewable energy capacity, enough to power more than two million European homes a year, and aims to power all its activities with renewables by 2025 and net zero by 2040.

Amazon and Global Optimism co-founded The Climate Pledge in 2019, a commit ment to reach the Paris Agreement 10 years early and be net-zero carbon by 2040. The pledge now has 53 signatories, including IBM, Unilever, Verizon, Siemens, Microsoft, and Best Buy.

A map of all of Amazon’s renewable energy projects around the world can be found here.

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