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Winner: Restoring Coal’s Sheen

Swedish energy company takes a novel approach to carbon capture

10 min read
Winner: Restoring Coal’s Sheen
Photo: Plamen Petkov

The industrial age, wrote historian Barbara Freese, “emerged literally in a haze of coal smoke, and in that smoke we can read much of the history of the modern world." In boom economies like India's and China's, where coal meets about three-quarters of the electrical demand, that haze still hangs heavily. Globally, according to a recent influential study done at MIT and data from the International Energy Agency, in Paris, coal accounts for a quarter of energy consumed and more than two-fifths of ­the electricity generated. That makes it the second leading fuel after oil and the world's main source of ­greenhouse-gas emissions.

You can add up all the electricity produced in the world from renewable sources plus nuclear reactors, and it doesn't amount to what coal generates just in the United States and China. It's impossible to imagine our getting along without coal anytime soon. And yet, with concerns rising sharply about climate change, the general expectation is that governments will increasingly be penalizing carbon emissions by taxing them, regulating them, or forcing companies to trade in them. So burning coal could become radically more expensive unless efficient means are found to capture and permanently store carbon dioxide, which right now is pumped into the atmosphere in astonishing quantities.

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The EV Transition Explained: Charger Infrastructure

How many, where, and who pays?

7 min read
Illuminated electric vehicle charging stations at night in Monterey Park, California.

Electric vehicle charging stations in Monterey Park, California.

FREDERIC J. BROWN/AFP/Getty Images

The ability to conveniently charge an EV away from home is a top concern for many EV owners. A 2022 survey of EV owners by Forbes indicates that 62 percent of respondents are so anxious about their EV range that travel plans have been affected. While “range anxiety” may be overblown, the need for an extensive and reliable external charging infrastructure is not.

Infrastructure terminology can itself be confusing. For clarity, bear in mind that a charging station is a specific physical location which has one or more charging posts. A charging post itself may have one or more ports, where each port can charge a single EV. Each post may have multiple types of service connectors to support different EV charging connector standards. And a port may supply varying power levels.

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Video Friday: Humanoid Soccer

Your weekly selection of awesome robot videos

4 min read
Humans and human-size humanoid robots stand together on an indoor soccer field at the beginning of a game

Video Friday is your weekly selection of awesome robotics videos, collected by your friends at IEEE Spectrum robotics. We also post a weekly calendar of upcoming robotics events for the next few months. Please send us your events for inclusion.

CoRL 2022: 14–18 December 2022, AUCKLAND, NEW ZEALAND
ICRA 2023: 29 May–2 June 2023, LONDON

Enjoy today’s videos!

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Designing Fuel Cell Systems Using System-Level Design

Modeling and simulation in Simulink and Simscape

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

Design and simulate a fuel cell system for electric mobility. See by example how Simulink® and Simscape™ support multidomain physical modeling and simulation of fuel cell systems including thermal, gas, and liquid systems. Learn how to select levels of modeling fidelities to meet your needs at different development stages.