Archive for the ‘solar power’ category: Page 102
Apr 28, 2019
Solar Electric Propulsion (SEP)
Posted by James Christian Smith in categories: robotics/AI, solar power, space travel
As NASA seeks cost-effective access to destinations across the inner solar system, including cislunar space and Mars, it also seeks to shorten the cycle of time to develop and infuse transformative technologies that increase the nation’s capabilities in space, enable NASA’s future missions and support a variety of commercial spaceflight activities.
NASA’s Solar Electric Propulsion (SEP) project is developing critical technologies to extend the length and capabilities of ambitious new science and exploration missions. Alternative propulsion technologies such as SEP may deliver the right mix of cost savings, safety and superior propulsive power to enrich a variety of next-generation journeys to worlds and destinations beyond Earth orbit.
Energized by the electric power from on-board solar arrays, the electrically propelled system will use 10 times less propellant than a comparable, conventional chemical propulsion system, such as those used to power the space shuttles to orbit. Yet that reduced fuel mass will deliver robust power capable of propelling robotic and crewed missions well beyond low-Earth orbit — sending exploration spacecraft to distant destinations or ferrying cargo to and from points of interest, laying the groundwork for new missions or resupplying those already underway. Mission needs for high-power SEP are driving the development of advanced technologies the project is developing and demonstrating including large, light-weight solar arrays, magnetically shielded ion propulsion thrusters, and high-voltage power processing units.
Apr 27, 2019
5 AI Breakthroughs We’ll Likely See in the Next 5 Years
Posted by Shailesh Prasad in categories: climatology, robotics/AI, solar power, sustainability
Just as the modern computer transformed our relationship with bits and information, AI will redefine and revolutionize our relationship with molecules and materials. AI is currently being used to discover new materials for clean-tech innovations, such as solar panels, batteries, and devices that can now conduct artificial photosynthesis.
Today, it takes about 15 to 20 years to create a single new material, according to industry experts. But as AI design systems skyrocket in capacity, these will vastly accelerate the materials discovery process, allowing us to address pressing issues like climate change at record rates. Companies like Kebotix are already on their way to streamlining the creation of chemistries and materials at the click of a button.
Atomically precise manufacturing will enable us to produce the previously unimaginable.
Continue reading “5 AI Breakthroughs We’ll Likely See in the Next 5 Years” »
Apr 24, 2019
New type of silicon promises cheaper solar technology
Posted by Quinn Sena in categories: solar power, sustainability
An international research team led by The Australian National University (ANU) has made a new type of silicon that better uses sunlight and promises to cut the cost of solar technology.
The researchers say their world-first invention could help reduce the costs of renewable electricity below that of existing coal power stations, as well as lead to more efficient solar cells.
Senior researcher ANU Professor Jodie Bradby said silicon was used as the raw material for solar cells because of its abundance, low-cost and non-toxicity.
Continue reading “New type of silicon promises cheaper solar technology” »
Apr 23, 2019
Solar power now comes in the form of a flower
Posted by Shailesh Prasad in categories: solar power, sustainability
Click on photo to start video.
Forget rooftop panels. This is the next generation of solar power.
Apr 16, 2019
Winters Are Only Going to Get Worse, So Researchers Invented a Way to Generate Electricity from Snowfall
Posted by Genevieve Klien in categories: solar power, sustainability
The farther you get from the equator, the less effective solar panels become at reliably generating power all year round. And it’s not just the shorter spans of sunlight during the winter months that are a problem; even a light dusting of snow can render solar panels ineffective. As a result of global warming, winters are only going to get more severe, but there’s at least one silver lining as researchers from UCLA have come up with a way to harness electricity from all that snow.
The technology they developed is called a snow-based triboelectric nanogenerator (or snow TENG, for short) which generates energy from the exchange of electrons. If you’ve ever received a nasty shock when touching a metal door handle, you’ve already experienced the science at work here. As it falls towards earth, snowflakes are positively charged and ready to give up electrons. In a way, it’s almost free energy ready for the taking, so after testing countless materials with an opposite charge, the UCLA researchers (working with collaborators from the University of Toronto, McMaster University, and the University of Connecticut) found that the negative charge of silicone made it most effective for harvesting electrons when it came into contact with snowflakes.
Apr 12, 2019
EGEB: Solar cell breakthrough, Hawaiian solar projects, Chicago renewables, Amazon, and more
Posted by Quinn Sena in categories: climatology, education, solar power, sustainability
- Researchers figure out a new way to pair perovskites with silicon for a solar boost.
- Hawaiian Electric sets new goals for solar and storage.
- Chicago officially commits to its 100% renewable energy goal for 2035.
- Anaheim builds nine new solar projects at public schools.
- Amazon employees want the company to take action on climate change, stop supporting fossil fuels.
Apr 11, 2019
Marrying two types of solar cells draws more power from the sun
Posted by Jacob Anderson in categories: solar power, sustainability
This is one of the most exciting results I’ve seen in a long time.
Simple tandem design uses perovskite layer to feed photons to silicon cell.
Apr 9, 2019
Transparent wood now also stores and releases heat
Posted by Quinn Sena in categories: solar power, sustainability
Three years ago, we heard how scientists from Sweden’s KTH Royal Institute of Technology had created transparent wood – it could serve as a cheaper alternative to the silica-based glass currently used in windows and solar cells. Now, the material is additionally able to store heat and later release it.
Apr 1, 2019
Europe Stores Electricity in Gas Pipes
Posted by Genevieve Klien in categories: solar power, sustainability
Converting excess wind and solar power into hydrogen can extend renewable energy’s reach.
- By Peter Fairley on April 1, 2019