Archive for the ‘Energy’ Category

Carbon nanotube “yarn” generates electricity when stretched

August 24th, 2017

Enlarge / When the yarn is stretched, the LED lights up. (credit: AAAS/Science)

Spare energy is all around us, from the pressure exerted by every footfall to the heat given off by heavy machinery. In some cases, like regenerative braking in cars, it’s easy to harvest, and the equipment needed to do so is simple and economic. In many others, however, we’re not there yet.

It’s not that we don’t have the materials to do so. Piezoelectric generators can harvest stresses and strains, while triboelectric generators can harvest friction, to give two examples. The problem is that their efficiency is low and the cost of the materials is currently high, making them bad fits for any applications.

But a study in today’s issue of Science describes a “yarn” made of carbon nanotubes that can produce electricity when stretched. Its developers go on to demonstrate its use in everything from wearable fabrics to ocean-based wave power generators. Given that the raw material for carbon nanotubes is cheap and there are lots of people trying to bring their price down, this seems to have the potential to find some economic applications.

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Posted in carbon nanotubes, Energy, materials science, science | Comments (0)

Parked electric cars are earning money balancing the grid in Denmark

August 14th, 2017

Enlarge (credit: NIssan)

A year-long trial in Denmark is showing that utilities can use parked electric vehicles (EVs) as spare batteries, and those EVs can earn quite a bit of money for their owners from the utilities.

In an interview with Bloomberg New Energy Finance, Nissan Europe’s director of energy services, Francisco Carranza, said that a fleet of 10 Nissan e-NV200 vans has earned €1,300 ($1,530) over the year.

Electricity grids around the world are facing an era of rapid change as more electric vehicles hit the road and as grid supply changes. For grid managers, sometimes small amounts of power are necessary to regulate current frequency and keep the grid working. At the same time, if a lot of electric vehicles draw power from the grid concurrently (for example, when they’re parked at home at night, or when they’re parked at work during the day), that threatens to change how grid operators plan to meet demand, as well.

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Posted in cars, enel, Energy, Nissan, science, vehicle to grid | Comments (0)

Tesla’s electric semi will be revealed in September, CEO says

April 13th, 2017

Tesla wants to turn internal combustion trucks electric. (credit: Mark Goebel)

Last year, Tesla CEO and founder Elon Musk wrote an updated version of his 2006 “Master Plan” that predicated the growth of the electric vehicle company. The “Master Plan Part Deux” detailed the company’s ambitions to build a Tesla Semi, which Musk said at the time “should be ready for unveiling next year.”

Now, right on time, Musk tweeted out an update this afternoon: “Tesla Semi truck unveil set for September. Team has done an amazing job. Seriously next level.”

The CEO added in subsequent replies that the next-generation Roadster would be a convertible and that details on a Tesla pickup truck would be revealed in “18 to 24 months.” Ars reached out to Tesla, which said there were no other details to share at this time besides what was in Musk’s tweets.

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Posted in cars, Cars Technica, Energy, semis, Tesla, trucks | Comments (0)

France wants Tesla to transform its old nuclear plant into an auto factory

April 6th, 2016

(credit: Florival fr )

Tesla has “no current plans to open a factory in Europe,” a spokesperson for the company told Ars. But that hasn’t stopped French Energy and Environment Minister Ségolène Royal from saying that her best idea for repurposing an old nuclear power plant in northeastern France is to try to convince Tesla to build a factory there for its electric vehicles.

The Fessenheim plant, which sits on the France/Germany border, went into operation in 1978 and is currently operated by French energy company EDF. Today, it’s the oldest working nuclear power plant in France, but after the 2011 Fukushima disaster, the French government decided to close the facility by 2017 in the interest of safety. German broadcaster Deutsche Welle reported earlier this week that in 2014, a water leak was discovered coming from one of the reactors, but jammed control rods forced EDF to shut the reactor down using unconventional methods. Deutsche Welle says that the incident was played down by EDF in 2014.

Still, many people oppose the closure of the power plant, with Royal noting in previous interviews that the nuclear plant supports some 2,000 jobs. France currently relies on nuclear power to supply 75 percent of its electricity nationwide, but the French government has said it wants to reduce this share to 50 percent by 2025, according to Deutsche Welle.

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Posted in auto manufacturing, cars, Cars Technica, electric, Energy, nuclear energy, Tesla | Comments (0)

Researchers Create Device That Produces Electricity When You Walk

January 10th, 2016

By Ryan De Souza

Now You Can Produce Electricity While Walking – Claims New

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SAP forges Internet of Things security partnerships | Inside SAP

November 23rd, 2015

In-brief: SAP AG announced alliances with a string of software and hardware makers to provide end to end security for Internet of Things deployments. Check Point and Intel are among the company’s partners. We noted last week that enterprise systems by the likes of Oracle and SAP are proving to be weak links in the Internet of Things security chain.  That story noted this piece over at VICE’s Motherboard that noted some research suggesting that ERP (enterprise resource planning) platforms are being targeted in attacks on firms in the oil and gas industry. Well, it seems that security in the context of IoT isn’t lost on huge platform vendors like SAP. Note this news from Inside SAP about a raft of new partnerships that seek to address security up and down the chain. Among the companies SAP said it will partner with are Check Point Software Technologies, for “a security architecture designed to […]

Posted in Check Point Software Technologies, connected devices, critical infrastructure, Energy, Finance, healthcare, Intel, Internet of things, partnerships, Patching, Reports, SAP, smart infrastructure, Telecommunications, Top Stories, vulnerabilities | Comments (0)

Man 3D prints a wirelessly power-driven desk lamp inspired by Tesla

May 18th, 2015

By Waqas

It was more like a mission for engineer, David Choi,

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