Gallium arsenide (GaAs) has long been touted as the best material for making high-efficiency solar cells because of its extraordinary light absorption and electrical characteristics. It has most notably been put to use in space solar panels.
These GaAs solar cells, however, are extremely pricey to produce resulting in a demand for methods that cut down on the material usage. That’s where nanowire structures come in. These elements can potentially enhance solar cell efficiency compared to standard planar solar cells while utilizing less material.
By using GaAs in the nanowire structures, the team of researchers has found a new way to make an ultrahigh power-per-weight ratio solar cell that is more than 10 times more efficient than any other solar cell.
Scheduled to break ground next year, the project will feature 100 single-story houses “printed” on-site using advanced robotic construction and a concrete-based building material.
Digital renderings of the neighborhood, unveiled last week, show rows of properties with their roofs covered in solar cells. The homes will each take approximately a week to build, according to firms behind the development.
The project is a collaboration between homebuilding company Lennar and ICON, a Texas-based construction firm specializing in 3D-printed structures. The houses have been co-designed by the Danish architecture practice Bjarke Ingels Group.
Solar panel companies turn to silicon because it is efficient and lasts a long time. A single panel lasts for at least 25 years, providing more than 80% of its initial power.
Despite the benefits, crystalline silicon is difficult to produce, which slows down the solar panel manufacturing process. In the past year, the cost of silicon has skyrocketed, up to a 300% increase, and the U.S. banned imports from China (due to a violation of international standards on child labor) — making it the second most abundant element on the planet an actual scarcity.
Alternative semiconductors: Some companies are ditching silicon for, a cheaper alternative. If they can commercialize low-cost films, the solar industry would change dramatically.
Solar PV panels are now a common site around the world and they do a great job. But they only work on flat surfaces. What about the millions of other surfaces that are not so conveniently shaped? That’s where flexible solar film comes in. The concept is not new but now a UK company has developed a unique Solar PV film that could make the technology accessible to millions more people in remote off grid areas in developing nations.
This rolling sheet of solar panels may not look like much, but it could help spark a solar power revolution in the railroad industry.
The creators of the solar-powered locomotive of the future were aiming to set a Guinness record for speed last weekend, and that is more than just your ordinary attention-getting stunt. Demonstrating the functionality of PV panels on rail cars could help set the stage for solar power to knock diesel fuel out of the railroad business. No word yet on the official results, but solar is beginning to wiggle its way into a field dominated by fossil fuel.
The Solar Train Of The Future Hits The Tracks, With Only Solar Power
When people say “solar train,” they usually mean a battery-powered train charged by solar panels parked in a solar farm, such as the UK’s Riding Sunbeams project. In other words, the solar power is there, but it is not actually along for the ride.
“SolarStratos has an opportunity to push the limits of what we think is humanly possible and prove that renewable energy has the capacity to power our lives while preserving our planet. We are fortunate to energize SolarStratos with SunPower’s industry-leading solar technology and look forward to further showcasing the value of innovative and reliable solar solutions for the world to see.”
The company is also changing the way the whole world thinks about renewable energy…at least, that is their goal. SunPower doesn’t just want to power buildings and farms. They want to use their durable and efficient solar panels for all the types of applications available. They believe that anything that can and needs to be powered, should be powered by natural sources, like the sun.
SunPower has a pioneering legacy of powering unique solar projects. Their high-efficiency solar cells are the driving power for many amazing vehicles. In addition to now supporting the airplane SolarStratos, the company has previously supported the following projects:
Most solar panels are placed flat on rooftops because they are designed to harness solar energy when the sun is directly overhead. However, when the angle of the sun’s rays hitting the panel changes, traditional panels quickly become less efficient.
To get around this inefficiency, scientists have been experimenting with a variety of new solar cell technologies, including nanoscale 3D structures to trap light and increase the amount of solar energy absorbed. However in a new study in Energy and Environmental Science, a team of MIT researchers has taken a different approach by changing the shape of the solar panels. The researchers were able to develop a 3D shape that allows for 20 times greater power output.
In a press statement, EdisonFuture said the EF1-T, as well as a van version of the vehicle called the EF1-V, feature “a uniquely designed solar mosaic technology that provides a stunning visual signature while also harnessing the power of the sun to recharge the batteries, enabling work vehicles to continuously charge while in the field.”
Bizarrely, as far as we can tell, the automaker hasn’t actually released any information regarding the battery size, range, or solar charging specifications of the EF1-T, though a prototype of the vehicle is due to go on display at the LA Auto Show in mid-November, so we may learn more information then. EdisonFuture also said it will begin accepting reservations for the pickup during the show.
While we’re likely pretty far off seeing vehicles that run solely on solar power, we’re increasingly seeing pickups and cars fitted with solar panels as the technology matures, allowing for added range figures that aren’t negligible. Dutch automaker Lightyear 0 for example, states on its website that its Lightyear One car can add 7 miles (12 km) of range per hour via solar charging. Lightyear eventually aims to develop vehicles that can go months without needing to charge via conventional means. Stay posted to learn more about the range figures of the EF1-T when we find out more in the very near future.
Abstract: Solar Sails are at the same stage of engineering development as electric motors were in the 1830’s. Each attribute of solar flux has been examined in isolation, such as photon, proton, plasma, and electrodynamic systems. This talk recommends designing a simple baseline system that converges multiple propulsion methods into optimized systems, as is currently done with electric motors. Many convergences can come from this solution space. Once a baseline design is created, AI genetic algorithms can “flight test” and refine the designs in simulation to adjust proportions and geometry. Once a base design is refined, a second AI evolution pass would design fleet systems that flock like birds to optimize performance. These could fly as a protective shield around Mars crewed fleets, provide space based solar power, deploy rapid reaction probes for interstellar comets, and be used in NEO asteroid mining. In the long term, fleets of solar energy management vehicles can provide orbital Carrigan event protection and Martian solar wind protection for terraforming. This talk is also a case study in how technology revolutions happen, and how to accelerate the creation and democratization of technical solutions.
From the 24th Annual International Mars Society Convention, held as a Virtual Convention worldwide on the Internet from October 14–17, 2021. The four-day International Mars Society Convention, held every year since 1,998 brings together leading scientists, engineers, aerospace industry representatives, government policymakers and journalists to talk about the latest scientific discoveries, technological advances and political-economic developments that could help pave the way for a human mission to the planet Mars.
Conference Papers and some presentations will be available on www.MarsPapers.org.
26 Oct 2021 — Public Chinese government records reviewed by the Good Food Institute (GFI) APAC indicate that significant funds are being allocated to help the nascent alternative protein sector optimize and scale up – as was previously done for the nation’s development of solar panels, lithium-ion batteries and electric vehicles.
While Chinese funding for alternative protein remains a tiny proportion of what the nation is capable of, these moves by various government entities demonstrate the scope of interest among local officials, which could potentially position China at the forefront of the next big food tech boom.
“There is no pathway to achieve the climate goals set out in the Paris Agreement without changing how we produce protein, but encouraging new evidence suggests that Chinese leaders understand the massive benefits of making meat from plants and growing it directly from cells,” stresses the GFI.
