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Aug 29, 2021

Solid State Transformers Could Be Key To Smart Grid Functionality

Posted by in categories: business, solar power, sustainability

Circa 2017


Transformers are found at generating stations and distribution substations. Their primary function is to reduce the high voltages used to transport electricity long distances to the lower voltages needed by homes and businesses. But today’s transformers only operate in one direction. They are poorly equipped for boosting electricity from local sources — typically wind and solar — to the higher voltages needed to mesh efficiently with the larger grid.

Beginning in 2,010 researchers at the National Science Foundation’s FREEDM Systems Center at NC State introduced the first solid state transformer. It could perform all of the functions of a traditional transformer, but could also redirect power as needed to address changes in supply and demand.

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Aug 28, 2021

Aptera opens orders on 1,000-mile solar EV that never needs charging

Posted by in categories: solar power, sustainability, transportation

Circa 2020


Since electric vehicles first started hitting the mainstream, people have been asking “why doesn’t that have a solar panel roof?” The answer has always been the same: solar panels just don’t generate that much power. That’s not a huge problem for solar racers, with their ultra-light weight and super-aerodynamic shapes, but for the minuscule daily range a solar roof would give you on your typical daily driver, you’re still gonna need to plug it in.

Ah, but what if your daily driver was the closest thing on the road to a solar racer? An EV truly designed with ludicrous levels of efficiency as the primary goal? Something so aerodynamically slippery that it makes a mockery of the production car world? Well, that’s the Aptera. And its manufacturers claim that its 180 small solar panels, making up an area of more than three square meters (32.3 sq ft), will harvest enough energy that many drivers will never have to charge it.

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Aug 28, 2021

Solar energy could supply over 40% of the US electricity by 2035

Posted by in categories: solar power, sustainability

Aug 27, 2021

The potential of deep learning in managing power networks

Posted by in categories: robotics/AI, solar power, sustainability

Dr. Valentin Robu, Associate Professor and Academic PI of the project, says that this work was part of the NCEWS (Network Constraints Early Warning System project), a collaboration between Heriot-Watt and Scottish Power Energy Networks, part funded by InnovateUK, the United Kingdom’s applied research and innovation agency. The project’s results greatly exceeded our expectations, and it illustrates how advanced AI techniques (in this case deep learning neural networks) can address important practical challenges emerging in modern energy systems.


Power networks worldwide are faced with increasing challenges. The fast rollout of distributed renewable generation (such as rooftop solar panels or community wind turbines) can lead to considerable unpredictability. The previously used fit-and-forget mode of operating power networks is no longer adequate, and a more active management is required. Moreover, new types of demand (such as from the rollout EV charging) can also be source of unpredictability, especially if concentrated in particular areas of the distribution grid.

Network operators are required to keep power and voltage within safe operating limits at all connection points in the , as out of bounds fluctuations can damage expensive equipment and connected devices. Hence, having good estimates of which area of the network could be at risk and require interventions (such as strengthening the network, or extra storage to smoothen fluctuations) is increasingly a key requirement.

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Aug 22, 2021

Giant Energy Storage Project Hoovers Up Excess Wind & Solar

Posted by in categories: solar power, sustainability

What was that again about wind and solar power being unreliable? Some energy pundits are still tossing that old ball around, but meanwhile savvy investors are plowing billions into new energy storage facilities that spit out clean kilowatts on demand. Like they say, money talks, and in a fitting twist the latest example comes from the Golden State, California.

Massive New Energy Storage Facility For The Golden State

California has plenty of both wind and solar, and it also has an ambitious renewable energy goal, which makes it the perfect spot to launch ambitious clean power projects such as massive new energy storage facilities.

Aug 19, 2021

China to harvest sun’s energy in space and beam it to Earth for power by 2030

Posted by in categories: military, solar power, space, sustainability

Over the last few decades, various forms of solar power stations have been proposed from around the world but they remained theoretical because of major technical challenges.

At Bishan, Chinese researchers would first need to prove that wireless power transfer worked over a long distance.


Civilian and military researchers will look at applications for the technology amid concerns about radiation and the potential for beams misfired from space.

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Aug 18, 2021

The Most Expensive Listing in Southern Nevada Asks $32.5 Million

Posted by in categories: solar power, sustainability, transportation

The 14,207-square-foot home in Henderson features views of the Las Vegas Strip, smart-home technology, solar power and a 12-car garage.

Aug 12, 2021

Recovering waste heat from solar cells via a thermoelectric generator

Posted by in categories: solar power, sustainability

Heat flows naturally through the TEG because its cold side is kept at room temperature, while its hot side, which is in thermal contact with the cell, is at a high temperature. The Seebeck effect, which is the direct conversion of temperature differences between two semiconductor materials into electric voltage, generates this difference which then translates into additional electrical power.

The scientists decided not to use a spectrum splitting technology, which is generally utilized in these applications, to direct different parts of the solar spectrum towards either the PV or the TEG unit. “It is more convenient, in terms of final efficiency gains, to keep the solar cell at the same temperature of the TEG hot side, instead of keeping the cell cold but losing much of the recoverable heat,” the academics explained, noting that a wide-gap solar cell based on perovskite was chosen for the device, due to its lower sensitivity to high temperatures. “Temperature-sensitive materials, such as silicon, lose too much efficiency to make the hybridization convenient,” they further explained.

Aug 11, 2021

Crystal arrangement results in 1,000x more power from ferroelectric solar cells

Posted by in categories: solar power, sustainability

German researchers developed a lattice arrangement of three different layers of ferroelectric crystals that created a powerful photovoltaic effect.


Combining ultra-thin layers of different materials can raise the photovoltaic effect of solar cells by a factor of 1,000 according to researchers at Martin Luther University Halle-Wittenberg (MLU) in Germany.

Their findings, published in the journal “Science Advances,” described a lattice arrangement of three different layers of ferroelectric crystals (in this case, of barium titanate, strontium titanate, and calcium titanate) that created a powerful solar energy producing effect.

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Aug 11, 2021

Could We Explore the Entire Galaxy With Self-Replicating Robots?

Posted by in categories: 3D printing, environmental, nuclear energy, physics, robotics/AI, solar power, space, sustainability

Circa 2016


Scientists and engineers since the 1940s have been toying with the idea of building self-replicating machines, or von Neumann machines, named for John von Neumann. With recent advances in 3D printing (including in zero gravity) and machine learning AI, it seems like self-replicating machines are much more feasible today. In the 21st century, a tantalizing possibility for this technology has emerged: sending a space probe out to a different star system, having it mine resources to make a copy of itself, and then launching that one to yet another star system, and on and on and on.

As a wild new episode of PBS’s YouTube series Space Time suggests, if we could send a von Neumann probe to another star system—likely Alpha Centauri, the closest to us at about 4.4 light years away—then that autonomous spaceship could land on a rocky planet, asteroid, or moon and start building a factory. (Of course, it’d probably need a nuclear fusion drive, something we still need to develop.)

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