From Haiti to Alabama – discover the Solar Frontiers where clean energy is sparking a revolution in how our planet is powered – and by whom.
Solar Frontiers
Posted in solar power, sustainability
Category: sustainability – Page 657
Tesla Powerwall Keynote by Elon Musk “The Missing Piece”
English and Spanish subtitles added, credit to Luis Gámez for transcribing and translating.
I recall when Venter made the first synthetic unique life form he said biofuels and algae that soaks up carbon dioxide would come out of it. Feels like it has been slow going but here is a why and why no item and please read the comments too as they are also informative.
From powering airplanes to replacing nuclear energy, algae has been touted as a green energy miracle. So if our waterways are already filled with the stuff, why isn’t it filling the world’s skies with biofueled planes? Algae is a tricky creature that presents a lot of challenges and misconceptions. Here’s why it’s difficult to harness—and why it could big a big payoff.
As we previously reported, algae is a fuel source that’s vastly more eco-friendly than oil, and will be crucial as we head into a future filled with climate change and depleting fossil fuels.
In 2013, a paper published in the journal Bioresource Technology reported that algal fuels can cut carbon dioxide emissions by 50 to 70 percent. It’s also more efficient than other biofuels, like those derived from corn. The US Department of Energy says that algae could produce up to 60 times more fuel per acre than land-based plants.
Researchers at Linköping University’s Laboratory of Organic Electronics, Sweden, have developed power paper — a new material with an outstanding ability to store energy. The material consists of nanocellulose and a conductive polymer. The results have been published in Advanced Science.
One sheet, 15 centimetres in diameter and a few tenths of a millimetre thick can store as much as 1 F, which is similar to the supercapacitors currently on the market. The material can be recharged hundreds of times and each charge only takes a few seconds.
It’s a dream product in a world where the increased use of renewable energy requires new methods for energy storage — from summer to winter, from a windy day to a calm one, from a sunny day to one with heavy cloud cover.
Google says it wants to power 100% of its operations from renewable energy.
Google has announced a slew of renewable energy projects, as it moves to meet its commitment to power 100 percent of its business from green energy sources.
In what it calls the “largest, and most diverse, purchase of renewable energy ever made by a non-utility company,” Google said it has added 842 megawatts (MW) of renewable energy to its data centers, which nearly doubles the amount of clean energy it has already bought. Most of the renewable energy has been purchased for locations in the U.S., but Google said it has added more than 150 megawatts from a solar plant in Chile and a wind farm in Sweden.
When Google commits to long-term contracts to buy a certain amount of renewable energy, it effectively gives the giant energy companies, such as EDF, Duke, and RES Americas, the confidence and finances to pursue building new facilities.
An emerging class of atomically thin materials known as monolayer semiconductors has generated a great deal of buzz in the world of materials science. Monolayers hold promise in the development of transparent LED displays, ultra-high efficiency solar cells, photo detectors and nanoscale transistors. Their downside? The films are notoriously riddled with defects, killing their performance.
For an Israeli start-up, one answer to global warming is blowing in the wind. The company called NewCO2Fuels, or NCF, has been developing its own version of a technology that allows heat-trapping carbon dioxide emissions to be captured and recycled back into useable fuel.
It sounds complicated—and it is—but the company’s founders say it holds real potential in the fight against global warming.
Such capture technologies have gained increased attention as countries seek alternative methods of cutting back on greenhouse gas emissions, the main culprit in global warming.
A common criticism of a total transition to wind, water and solar power is that the US electrical grid can’t affordably store enough standby electricity to keep the system stable. Now a researcher proposes an underground solution to that problem.
A solar cell is basically a semiconductor, which converts sunlight into electricity, sandwiched between metal contacts that carry the electrical current.
But this widely used design has a flaw: The shiny metal on top of the cell actually reflects sunlight away from the semiconductor where electricity is produced, reducing the cell’s efficiency.
Now, Stanford University scientists have discovered how to hide the reflective upper contact and funnel light directly to the semiconductor below. Their findings, published in the journal ACS Nano, could lead to a new paradigm in the design and fabrication of solar cells.
Interesting…
To suggest that quantum mechanics and gravity are on the verge of being reconciled would be, to the physics world at least, as significant as the discover of splitting the atom. While splitting the atom might have led to the nuclear bomb, it also led to the technology of nuclear power, i.e. nuclear fission, which, if harnessed properly, creates a renewable and sustainable energy resource. The problem has always been that quantum mechanics — the rules that govern sub-atomic particles — and gravity, the rule that governs mass as we know it (the stuff we can touch and feel), do not agree with each other. The question has always been, what is it that “unifies” these two theories? Is quantum mechanics God playing dice, as Einstein suggested?
“God doesn’t play dice with the universe.”
Stephen Hawking and his colleagues have come to a possible answer. Think of your television. You watch shows and movies and you are not thinking how unrealistic the movie is because it is on your two dimensional screen. The two dimensions represent information which is perceived by your brain as an accurate portrayal of the three dimensional universe. In short, the three dimensional universe is captured in two dimensions; reality becomes a hologram. Out reality could be nothing more than a television show if we extend Hawking’s Theory to the entire universe.