Reap The Wild Wind

A fresh breeze is blowing at Horns Rev, where the Danes are building the world's biggest offshore wind farm

14 min read

On a beautiful sunny Saturday morning, unseasonably warm for spring, the MS Ocean Adys is getting ready to leave Esbjerg, on Denmark's west coast. Our cargo is stowed safely on board, and now the crew is making final adjustments before taking in the docking lines and pulling up anchor.

Commissioned just days before, the Ocean Adys has the outlines of a small cargo vessel. But unlike the other ships that leave this busy port city for points the world over, piled high with giant sky-blue corrugated Maersk Sealand containers, the Ocean Adys isn't going very far—our trip will last just four hours. Our destination: Horns Rev (Reef), a wind farm now being developed 14 km off shore by Elsam A/S (Fredericia), Denmark's biggest power producer. The ship, too, carries an unusual payload: two boxy white nacelles, 13 meters long and 4 meters high, stacked one atop the other, each housing the generator and other machinery that turn wind energy into electricity. Two rotor blades are attached to each, forming a wide-angled V at one end.

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The EV Transition Explained: Can the Grid Cope?

Palo Alto offers a glimpse at the challenges municipalities and utilities face

8 min read
A man plugging a charger into an outlet

Enel’s JuiceBox 240-volt Level 2 charger for electric vehicles.

Enel X Way USA

There have been vigorous debates pro and con in the United States and elsewhere over whether electric grids can support EVs at scale. The answer is a nuanced “perhaps.” It depends on several factors, including the speed of grid-component modernization, the volume of EV sales, where they occur and when, what kinds of EV charging are being done and when, regulator and political decisions, and critically, economics.

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5 min read
portrait of older woman in light blue jacket against dark gray background Info for editor if needed:
Sue Brown

Janet Barth spent most of her career at the Goddard Space Flight Center, in Greenbelt, Md.—which put her in the middle of some of NASA’s most exciting projects of the past 40 years.

She joined the center as a co-op student and retired in 2014 as chief of its electrical engineering division. She had a hand in Hubble Space Telescope servicing missions, launching the Lunar Reconnaissance Orbiter and the Magnetospheric Multiscale mission, and developing the James Webb Space Telescope.

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Modeling and simulation in Simulink and Simscape

1 min read
Designing Fuel Cell Systems Using System-Level Design

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