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Archive for the ‘sustainability’ category: Page 429

Jun 10, 2020

Spherical Solar Cells Soak Up Scattered Sunlight

Posted by in categories: engineering, solar power, sustainability

Flat solar panels still face big limitations when it comes to making the most of the available sunlight each day. A new spherical solar cell design aims to boost solar power harvesting potential from nearly every angle without requiring expensive moving parts to keep tracking the sun’s apparent movement across the sky.

The spherical solar cell prototype designed by Saudi researchers is a tiny blue sphere that a person can easily hold in one hand like a ping pong ball. Indoor experiments with a solar simulator lamp have already shown that it can achieve between 15 percent and 100 percent more power output compared with a flat solar cell with the same total surface area, depending on the background materials reflecting sunlight into the solar cells. The research group hopes its nature-inspired design can fare similarly well in future field tests in many different locations around the world.

“The placement and shape of the housefly’s eyes increase their angular field of view so they can see roughly 270 degrees around them in the horizontal field,” says Nazek El-Atab, a postdoctoral researcher in microsystems engineering at the King Abdullah University of Science and Technology (KAUST). “Similarly, the spherical architecture increases the ‘angular field of view’ of the solar cell, which means it can harvest sunlight from more directions.”

Jun 10, 2020

The US could shift to 90-percent renewable energy by 2035 at no extra cost

Posted by in categories: energy, sustainability

A new report finds that a shift to 90-percent clean power could save as many as 85,000 lives by 2050 by sparing Americans from toxic pollution.

Jun 10, 2020

Indian firm to invest $6 billion in solar power as country targets lofty renewable energy goals

Posted by in categories: energy, sustainability

The country is still heavily reliant on coal, but this could change in the years ahead.

Jun 10, 2020

Tesla Semi: Elon Musk says time to bring electric trucks to volume production

Posted by in categories: Elon Musk, sustainability, transportation

Elon Musk has said that “it is time to bring” Tesla Semi electric trucks to volume production in a memo to all Tesla employees.

In a new email to employees last night, Musk that he wants to go “all out”:

“It’s time to go all out and bring the Tesla Semi to volume production. It’s been in limited production so far, which has allowed us to improve many aspects of the design.”

Jun 9, 2020

1.35 Cents/kWh: Record Abu Dhabi Solar Bid Is A Sober Reminder To Upbeat Fossil Fuel Pundits

Posted by in categories: solar power, sustainability

Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More.

Jun 9, 2020

New Generation of Lightweight, Flexible Solar Cells and Display Screens Using Transparent Graphene Electrodes

Posted by in categories: solar power, sustainability

New roll-to-roll production method could enable lightweight, flexible solar devices and a new generation of display screens.

A new way of making large sheets of high-quality, atomically thin graphene could lead to ultra-lightweight, flexible solar cells, and to new classes of light-emitting devices and other thin-film electronics.

The new manufacturing process, which was developed at MIT and should be relatively easy to scale up for industrial production, involves an intermediate “buffer” layer of material that is key to the technique’s success. The buffer allows the ultrathin graphene sheet, less than a nanometer (billionth of a meter) thick, to be easily lifted off from its substrate, allowing for rapid roll-to-roll manufacturing.

Jun 9, 2020

Tesla investor Ron Baron expects exponential growth for Elon Musk’s car company and SpaceX

Posted by in categories: Elon Musk, space travel, sustainability

Billionaire investor Ron Baron believes there’s still plenty of room for growth for Elon Musk’s Tesla and SpaceX companies.

Baron said Tuesday morning on “Squawk Box” that he believes “there’s 10 times more to go” with Tesla. He also said SpaceX, a privately held company, will grow by a multiple of 20 in the next 10 years. He previously predicted similar growth for Tesla.

Jun 8, 2020

Nio might have figured out battery swap for electric cars as it completes 500,000 swaps

Posted by in categories: business, sustainability, transportation

Over the years I have been covering electric vehicles, I’ve seen several companies attempt to add value to EVs by using swappable battery packs.

The idea is that if charging takes longer than refueling a tank of gas, we could just swap a battery pack for a fully charged one.

Continue reading “Nio might have figured out battery swap for electric cars as it completes 500,000 swaps” »

Jun 8, 2020

Transparent graphene electrodes might lead to new generation of solar cells

Posted by in categories: solar power, sustainability

A new way of making large sheets of high-quality, atomically thin graphene could lead to ultra-lightweight, flexible solar cells, and to new classes of light-emitting devices and other thin-film electronics.

Jun 8, 2020

Scientists Create Prototype That Generates Electricity From Shadows

Posted by in categories: solar power, sustainability

It sounds like something from a sci-fi movie, but the newly revealed Shadow-Effect Energy Generator (SEG) is a real prototype device. The fascinating concept could help us to transform the way renewable energy is generated indoors.

The SEG uses the contrast between darkness and light to produce electricity. It’s made up of a series of thin strips of gold film on a silicon wafer, placed on top of a flexible plastic base.

Whereas shadows are usually a problem for renewable solar energy production, here they’re actually harnessed to keep on generating power. The technology — which is cheaper to produce than a typical solar cell, according to its developers — produces small amounts of power and could be used in mobile gadgets, for example.