Category Archives: Energy

Updates from GE

Weathering The Storm: This Tech Will Help Utilities Keep The Lights On
By Bruce Watson – As Hurricane Harvey drenched the Texas coast in August — and Irma devastated the Caribbean and soaked Florida last week — the media was filled with scenes of flooded streets and gymnasiums crowded with people seeking shelter.

If earlier disasters are any indication, a key to these regions’ recovery may lie in how soon they are able to restore electricity to the millions of people who lost it. In the case of Hurricane Sandy in 2012, New York’s inundation with salt water knocked out power across New York City and and in many seaside towns, slowed down recovery efforts, and made it impossible for many people hit by the storm to return to their normal lives — and their jobs. According to some estimates, power and other infrastructure failures may have more than doubled Sandy’s long-term economic losses.

Part of the problem is the way that most regions plan for disasters. Traditional planning tends to focus on recovery — solving the problems caused by a disaster, like sheltering displaced people or fixing failed power grids. By comparison, grid resiliency, an emerging trend in preparedness, works to create infrastructure that will continue to function in the face of disaster or that can recover quickly. more>

Updates from GE

Sea Change: GE’s French Wind Turbine Factory Will Power Germany’s Renewables Revolution
By Tomas Kellner – GE is a relative newcomer to offshore wind. The company explored the field a decade ago and returned to the industry in 2015, when it acquired the energy assets of Alstom, and built its first wind farm in Long Island Sound near Block Island, Rhode Island, last year. As the inaugural offshore wind farm in the United States, the project made a splash even though it holds just five turbines. But Merkur, which will have 66 turbines, is a much bigger beast. “This one is special,” says Pascal Girault, who runs the Saint-Nazaire plant. “Everything is big.”

Girault spent the early part of his career managing supply chains for the car industry, but ramping up production for Merkur is no Sunday drive. Workers in Saint-Nazaire make generators and assemble nacelles for the 6-megawatt GE Haliade turbine. The nacelle is the casing on top of the tower that shelters the generator and other equipment. It includes some 30,000 components.

Adding to the task’s complexity, the composite blades for the machines’ 150-meter-diameter rotors come from GE’s LM Wind Power factory in Spain. The steel segments for the tower are being made in Germany and China. U.S. and European companies supply electronics and mechanical components for the converter and generator. “The scale and the speed of the project are challenging,” Girault says. more>

The Psychology of a Nuclear Standoff

By Tom Jacobs – The “nuclear taboo” has held for 70 years for two reasons, according to Jacques Hymans: “the enormity of the decision of use nuclear weapons,” and the unpredictability of the consequences of doing so. Nevertheless, he warns, these are dangerous times.

New nuclear states have always been highly interested in trying to use their weapons as means of compellence, i.e. threats to get some benefit. New leaders have also had such tendencies. This is understandable, because it takes time and experience to accept the counterintuitive reality that the biggest bomb in the world is mostly useless as a military weapon, and therefore also useless as a means of compellence. So, history teaches us that both the U.S. and North Korea at present are liable to try to push their nuclear luck. That makes for a dangerous situation.

The chances are higher that the U.S. will launch first. But this would be a terrible humanitarian catastrophe and the U.S. would lose Asia politically for a hundred years. more>

All The Details On Tesla’s Giant Australian Battery

By Campbell Simpson – Tesla is building the world’s largest lithium-ion battery in South Australia — an installation 60 per cent larger than any other large-scale battery energy storage system on the planet.

The battery pack’s 100MW/129MWh capacity will top the world in terms of its size, solidly beating out the world’s current largest installation — a 80 megawatt-hour substation at Mira Loma in Ontario, California also built using Tesla batteries. The 129MWh project in SA will also use Tesla’s PowerPack 2 commercial/utility-grade battery systems, and will be 60 per cent larger than the California installation, with the capacity to power 4000 homes in the region for an entire day in case of blackout.

It will be installed at the Hornsdale Wind Farm, a string of wind turbines stretching 8km and 24km north of Jamestown in South Australia. more>

Updates from GE

Laser Focus: See How One 3D-Printing Pioneer Is Heating Up Industry

By Tomas Kellner – Frank Herzog is the founder and CEO of Concept Laser, a pioneering maker of 3D printing machines. Concept Laser’s printers can produce precise hip joint replacements and surgical tools as well entire engine blocks. Last fall, GE acquired a majority stake in Herzog’s company, and Concept Laser is now part of GE Additive, a new GE business dedicated to supplying 3D printers, materials and engineering consulting services.

In 2016, Concept Laser sold more than 150 , and Hund says 750 Concept Laser machines are in service worldwide. With GE Additive, these numbers will grow even faster. In fact, Herzog and his colleagues are now helping GE design the world’s largest 3D printer for metals.

Updates from Georgia Tech

Researchers Create 3-D Printed Tensegrity Objects Capable of Dramatic Shape Change
By Ke Liu, Jiangtao Wu, Glaucio H. Paulino, and H. Jerry Qi – A team of researchers from the Georgia Institute of Technology has developed a way to use 3-D printers to create objects capable of expanding dramatically that could someday be used in applications ranging from space missions to biomedical devices.

The new objects use tensegrity, a structural system of floating rods in compression and cables in continuous tension. The researchers fabricated the struts from shape memory polymers that unfold when heated.

“Tensegrity structures are extremely lightweight while also being very strong,” said Glaucio Paulino, a professor in Georgia Tech’s School of Civil and Environmental Engineering. “That’s the reason there’s a heavy amount of interest right now in researching the use of tensegrity structures for outer space exploration. The goal is to find a way to deploy a large object that initially takes up little space.” more>


Connecting People to Prosperity in the Exponential Age

By Vanessa Bates Ramirez – “Our assumptions about how economies function no longer seem to hold true entirely because of exponential technology.”

This claim came from entrepreneur and Singularity University faculty member, Amin Toufani.

In what he calls exponential economics or “exonomics,” Toufani breaks the tech-driven changes happening in the modern economy into seven pillars: people, property, production, price, power, policy, and prosperity.

Toufani pointed out that exonomics’ ultimate goal is to connect people and prosperity.

“Technology is empowering all of us, and people seem to be doing what companies used to do and companies seem to be doing what governments used to do,” Toufani said.

The democratizing effect of information technology is enabling small teams to have an outsized impact. He showed a graph of collaboration app Slack’s user growth, and it’s practically a vertical line. A few years old, Slack reaches millions of users, many of whom pay for the service, and was recently valued upwards of $9 billion.

The kicker? Slack was created by a team of 12 software developers. And it’s far from the only such example. more>

The idea of creating a new universe in the lab is no joke

By Zeeya Merali – There’s an established principle in quantum theory that pairs of particles can spontaneously, momentarily pop out of empty space. Alex Vilenkin took this notion a step further, arguing that quantum rules could also enable a minuscule bubble of space itself to burst into being from nothing, with the impetus to then inflate to astronomical scales.

Our cosmos could thus have been burped into being by the laws of physics alone. Many cosmologists have made peace with the notion of a universe without a prime mover, divine or otherwise.

.. flipping the problem around, I started to wonder: what are the implications of humans even considering the possibility of one day making a universe that could become inhabited by intelligent life? As I discuss in my book A Big Bang in a Little Room (2017), current theory suggests that, once we have created a new universe, we would have little ability to control its evolution or the potential suffering of any of its residents. Wouldn’t that make us irresponsible and reckless deities?

We will not be creating baby universes anytime soon, but scientists in all areas of research must feel able to freely articulate the implications of their work without concern for causing offence. Cosmogenesis is an extreme example that tests the principle.

Parallel ethical issues are at stake in the more near-term prospects of creating artificial intelligence or developing new kinds of weapons, for instance.

As Anders Sandberg put it, although it is understandable that scientists shy away from philosophy, afraid of being thought weird for veering beyond their comfort zone, the unwanted result is that many of them keep quiet on things that really matter. more>

Updates from Aalto University

Solar energy to Otaniemi – campus planning invests in energy efficiency
By Satu Kankaala – Right now, the Aalto University main campus is growing and developing rapidly. Campus planning is investing in energy efficiency, which is an important step in the goal towards an energy self-sufficient Otaniemi ‘According to our report, ground heat and solar energy are the most suitable options for Otaniemi, and we are gradually increasing their use’, tells Satu Kankaala, Head of Workplaces and Sustainability at Aalto CRE.

‘The campus is made unique by several culturally significant locations as well as the nearby nature and conservation area. They also impact what kinds of energy technologies can be used in the properties’, she continues.

According to Kankaala, also financial sustainability, the wellbeing of people working in the spaces, and improving the utilization of the spaces are central aspects of responsible campus development.

About 45% of the energy used for heating and 75% of the energy used for cooling the recently repaired Dipoli comes from geothermal energy. Geothermal energy will comprise about 90% of the heating and up to 95% of the cooling of Väre, which will be finished next year. The electricity consumption of campus buildings has considerably been reduced by measures such as shifting to LED lighting and improving the power management of the computer base. With these energy efficiency measures, the carbon footprint of the buildings has been significantly reduced. more>


Updates from GE

The Power Of Data: How Software Is Helping Keep Iceland’s Lights On
By Julie Khoo – There are many reasons to visit Iceland. This former Viking stronghold is now the most peaceful country and home to the happiest and most literate people in the world — one in 10 Icelanders on average reportedly has published a book.

A nation of glaciers, volcanoes and waterfalls, Iceland is also, at least metaphorically, one of the greenest places, generating all of its electricity from renewable sources such as hydropower and geothermal energy.

The grid receives electricity from generators that move at a constant frequency, just like the merry-go-round. When a power-hungry load suddenly disconnects from a high-inertia grid with lots of generators, the grid frequency will barely change.

But when a generator or load goes offline in a low-inertia grid like the one in Iceland, Landsnet has to act quickly to return the frequency to its normal level.

This can be a real headache. If the frequency drops or climbs too quickly, it can knock down parts of the grid and cause power failures. It can even cause a geothermal power station to automatically disconnect from the grid to protect the equipment from large stresses. Dramatic changes in frequency can also create “electrical islands” as different areas on the grid react to the changes. This can lead to blackouts. more>