New technology from Sharp demonstrates ultra-high efficiency solar cells

solar energy

Sharp’s technology could be twice as efficient at converting sunlight to electricity.

Right now the best solar cells we have convert less than a third of the energy on sunlight into electricity, even though for decades researchers have calculated that exotic physics could allow solar cells to convert far more energy than they do now.

 

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Electric car travels over 1,100 miles without a recharge on a new aluminum-air battery

phinergy-aluminum-air-battery

Together the Israeli company, Phinergy, and the aluminum giant, Alcoa Canada, demonstrated an electric vehicle (EV) capable of driving over 1,100 miles between charges using a combination of aluminum-air and lithium-ion storage technologies.

 

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Archimedes Liam F1 Urban Wind Turbine is the world’s most efficient urban wind turbine

liamf1urbanwindturbine

Liam F1 Urban Wind Turbine

The Rotterdam-based tech firm The Archimedes has introduced its Liam F1 Urban Wind Turbine, which is said to have an energy yield that is “80 percent of the maximum that is theoretically feasible.” That’s quite the assertion, given that most conventional wind turbines average around 25 to 50 percent. (Video)

 

 

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Germany generates 74% of power needs from renewable energy

Offshore-Windkraftanlage

An offshore wind turbine near Rostock. Germany.

Germany’s impressive streak of renewable energy milestones continues, with renewable energy generation surging to a record portion — nearly 75 percent — of the country’s overall electricity demand by midday last Sunday. With wind and solar in particular filling such a huge portion of the country’s power demand, electricity prices actually dipped into the negative for much of the afternoon, according to Renewables International.

 

 

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IBM creates a solar magnifying glass that could power the Earth

solar magnifying glass

High Concentration Photo Voltaic Thermal (HCPVT)

IBM, the American multinational technology and consulting corporation are renowned the world over for being technology leaders and innovators with an aim to ‘shape the future of society and make the world work better and build a smarter planet.’ Their latest creation is being considered as one of their best projects yet.

 

 

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Solar thermophotovoltaic device has potential to tap the sun’s energy through heat as well as light

sun-energy

A nanophotonic solar thermophotovoltaic device.

Traditional photovoltaic solar cells have an inherent limit on the efficiency at which they can convert sunlight into energy. This limit—based on the bandgap of the material used and known as the Shockley-Queisser limit—is about 33.7 percent for standard solar cells. It is essentially due to any material’s inability to respond to all wavelengths of sunlight; so what if there was a way to change the wavelengths that actually reach the cell to those it converts best? MIT researchers have unveiled the best-yet version of that idea, known as solar thermophotovoltaics.

 

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They sound like science fiction, but these 5 energy technologies are getting close to reality

space-solar

Space-based solar

Some newer clean energy sources are becoming mainstream industries with low prices and established financing models like solar panels and wind turbines. But even in this era of emerging predictable clean energy, there are some pretty weird, experimental and ambitious energy projects under development. And they’re trying to move out of the lab and off of research papers, and into actual production.

 

 

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Altaeros Energies floating wind turbine churns out electricity and Wi-Fi

AlterosPrototype

Altaeros Energies floating wind turbine.

This floating turbine, developed by Altaeros Energies could someday travel to every remote corner of the globe. There, they could deliver electricity and Internet connectivity to people and villages living off-the-grid. (Video)

 

 

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Wireless electricity is here

wireless electricity

In the house of the future, wire-free energy transfer could be as easy as wireless internet.

When Katie Hall saw a light-bulb glowing in the middle of a room with no wires attached she was shocked. Looking back, it was a crude experiment, she remembers: a tiny room filled with gigantic copper refrigerator coils — the kind you’d see if you cracked open the back of your freezer. She walked in and out between the coils and the bulb — and still the bulb glowed. (Video)

 

 

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