May 17, 2020

Nuclear battery the size of a penny

Nuclear-battery-size-penny_35423
Admin
1 min
To some, the word 'nuclear' conjures up images of mushroom clouds and Chernobyl. So a nuclear battery may sound downright dangerous. But, in fact, nuc...


To some, the word 'nuclear' conjures up images of mushroom clouds and Chernobyl. So a nuclear battery may sound downright dangerous. But, in fact, nuclear batteries have been safely powering pace-makers, satellites and underwater systems for years. They boast an extremely long life and high energy density compared to typical batteries. However, they are also large and heavy: or at least they were.
Researchers at University of Missouri (MU) are working on a smaller, lighter model. Jae Kwon and his research team are developing a battery that is currently the size and thickness of a penny. However, the battery's small size is not the only innovation; it also utilizes a liquid semiconductor rather than a solid one.
"The critical part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure of the solid semiconductor," Kwon said. "By using a liquid semiconductor, we believe we can minimize that problem."
Working in collaboration with J. David Robertson, a chemistry professor and the associate director of the MU Research Reactor, Kwon is working to build and test the battery at the MU research facility. He hopes to increase the battery's power while continuing to shrink its size. In fact, Kwon said the battery could eventually be thinner than the thickness of human hair.

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Apr 20, 2021

Amazon's renewable energy projects surpass 200 milestone

Amazon
Renewables
Solar
Netzero
Dominic Ellis
2 min
Nine new projects announced today takes Amazon's renewables portfolio beyond 200 projects

Amazon claims it is now Europe's largest corporate buyer of renewable energy as its projects surpassed 200 globally.

Broken down, it has 136 solar rooftops on facilities and stores and 71 utility-scale wind and solar projects, nine of which were announced today covering the US, Canada, Spain, Sweden and UK. They include:

First solar project paired with energy storage Based in California’s Imperial Valley, Amazon’s first solar project paired with energy storage allows the company to align solar generation with the greatest demand. The project generates 100MW of solar energy, and includes 70MW storage.

First renewable project in Canada An 80 MW solar project in the County of Newell in Alberta. Once complete, it will produce over 195,000MWh of renewable energy to the grid.

Largest corporate renewable energy project in the UK Amazon’s newest project in the UK is a 350MW wind farm off the coast of Scotland and is Amazon’s largest in the country. It is also the largest corporate renewable energy deal announced by any company in the UK to date.

New projects in the US Amazon’s first renewable energy project in Oklahoma is a 118 MW wind project located in Murray County. Amazon is also building new solar projects in Ohio’s Allen, Auglaize, and Licking counties. Together, these Ohio projects will account for more than 400MW of new energy procurement in the state.

Additional investments in Spain and Sweden In Spain, Amazon’s newest solar projects are located in Extremadura and Andalucia, and together add more than 170 MW to the grid. Amazon’s newest project in Sweden is a 258 MW onshore wind project located in Northern Sweden.

It now has more than 2.5 GW of renewable energy capacity, enough to power more than two million European homes a year, and aims to power all its activities with renewables by 2025 and net zero by 2040.

Amazon and Global Optimism co-founded The Climate Pledge in 2019, a commit ment to reach the Paris Agreement 10 years early and be net-zero carbon by 2040. The pledge now has 53 signatories, including IBM, Unilever, Verizon, Siemens, Microsoft, and Best Buy.

A map of all of Amazon’s renewable energy projects around the world can be found here.

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