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Chủ Nhật, tháng 2 09, 2020

UK-German alliance in solar digital drone inspections


UK-German alliance in solar digital drone inspections

UK aerial inspection and data analytics company Above has acquired German drone start-up Ucair.
The buy means Above (formerly Above Surveying) has broken into the German market and it says it will also strengthen its presence in other European countries.
Above has been a pioneer of combining drone-based inspections of solar plant with cutting-edge data solutions.
“Digitalisation and automation of solar inspections will play a fundamental role in the increasing deployment of utility scale-solar” said Will Hitchcock, founder and chief executive of Above.
He said that “it is now well established that thermography provided by drones is the most efficient way of analysing the health of large-scale solar assets”.
He added that Ucair and Above “have been anticipating the digital transformation needed in the solar industry and have both invested heavily into the automation of their analysis process – but more importantly – into digitalisation and data mining”.
“Above is strongly positioned to scale its reach across the globe and accelerate its ambition to be the leading aerial inspection and data analytics company thanks to its advances in
the automation of aerial inspections,” he said. “Together we will draw on our market knowledge to strengthen our service offering and software capabilities.”
Above and Ucair have already collaborated over the past two years in a bid to improve best practices in the sector and ucair chief executive Viola Hoffmann said “this has made the union of the two companies a logical next step”.

How Renewable Energy Can Help Improve Health

How Renewable Energy Can Help Improve Health

Most of the emissions that account for global warming come from the electricity sector, where the use of fossil fuels is quite rampant. We all know that burning fossil fuels lets loose carbon dioxide and greenhouse gases, which contribute to the degeneration of air quality. Sustainable energy sources, on the other hand, release little or no greenhouse gases, thereby helping in rolling back global warming, and keeping our environment unsullied as well as dirt-free.
How Renewable Energy Can Help Improve Health
This post is going to reveal quite a few top benefits of going green-
Viable energy technologies utilize properties right from the environment to bring about power. These energy sources comprise wind, sunlight, waves etc.  As the most popular sources of renewable energy, they won’t dry up, whereas fossil fuels are always likely to run out. Quite normally, they will be highly difficult to obtain, thereby disturbing both the economical as well as environmental cycle.
A number of studies have been conducted and it’s revealed that renewable energy technologies entail less maintenance than dynamos that involve conventional fuel sources. The reason is quite simple though. It is because technology like wind transformers and solar panels either have few or no stirring parts. Also, they don’t bank on combustible fuel sources to set off. Less maintenance requirements mean users save considerable amounts of time and money.
Yes, using sustainable energy can help you save money down the line. Along with the maintenance costs, you would start saving on operating costs too. Naturally, when you are taking recourse to a technology that engenders power from natural sources like steam, wind, and the sun, you no longer have to think about refueling.
The amount of money you will save using viable or sustainable energy can differ based on different factors, and it counts on the technology too. In most cases,  switching to renewable energy means anywhere from hundreds to thousands of pounds or dollars in savings. Sunlight is ample and abundant. The same goes for wind. Wind generators can convert the energy into electricity with nominal impact on environment. Moreover, sustainable energy formation doesn’t entail purchasing and selling the very energy sources. Heat deriving from winds, streaming water, and sunlight promises to dole out a steady and cost-efficient energy supply for many years to come.
The fact that renewable sources technologies produce little to almost no greenhouse gases leads toward less air pollutants into the air. This smaller carbon footprint, quite naturally, paves the way for a complete positive impact on the environment. During the ignition process, fossil fuels tend to emanate high volume of carbon dioxide gas, which has been proven to aggravate the escalation of global temperatures and incidence of intense weather events. Apart from the greenhouse gases, the damaging pollutants released in due course of burning fossil fuels lead toward several cardiac as well as respiratory issues. With the use of sustainable energy, you would certainly cut down the presence of these contaminants, and account for an overall healthier atmosphere.
By contributing to less greenhouse releases, we can play an active role in alleviating the greenhouse effect and perk up air quality, thereby creating a better world to live in. Nitrous oxide, Carbon dioxide, and sulfur dioxide unleashed by fossils fuels can be dangerous or  deadly to human health, if inhaled for long. Cleaner air, on the other hand, would certainly help to save lives, especially when it involves respiratory conditions and even cancers. With viable energy technologies, you can crop up energy locally. The more sustainable energy you’re using for your power backups, the less you have got to depend on shipped in energy means.
According to Allied Market Research, the global renewable energy market is expected to grow at a significant CAGR from 2018–2025. Limited use of fossil fuel along with its volatile prices drive the growth of the market. On the other hand, high manufacturing cost is anticipated to hinder the growth to some extent. However, rise in the number of electric vehicles has almost modulated the factor and paved the way for a gamut of new opportunities in the industry.
Rapid advancements in high-end technologies and increase in government initiatives to support renewables have proved to be highly beneficial for the market. To sum up, it can be stated that the renewable energy market size is swelling up on a sturdy note, and strict government norms to combat climate change in the developed and developing economies are projected to boost the market growth yet more in the next few years.

Source : https://www.renewableenergymagazine.com/

Thứ Bảy, tháng 2 08, 2020

Điện mặt trời áp mái: Xả láng vẫn tiết kiệm? |


Nấm ăn bức xạ được tìm thấy trong lò phản ứng hạt nhân Chernobyl

Một loại nấm đen có thể ăn bức xạ đã được phát hiện bên trong lò phản ứng hạt nhân Chernobyl khiến giới khoa học bất ngờ.


Nấm ăn bức xạ được tìm thấy trong lò phản ứng hạt nhân Chernobyl - 1
Nhấn để phóng to ảnh
Một phần của lò phản ứng hạt nhân Chernobyl.

Năm 1991, loại nấm kỳ lạ đã được tìm thấy mọc lên trên các bức tường của lò phản ứng, khiến các nhà khoa học gặp nhiều khó khăn trong việc đi tìm lời giải do môi trường khắc nghiệt, nặng bức xạ như vậy.
Các nhà nghiên cứu cuối cùng nhận ra rằng thực tế dường như bực xạ nguy hiểm lại là nguồn thu hút nấm.
Một thập kỷ sau, các nhà nghiên cứu đã thử nghiệm một số loại nấm và xác định rằng nó có một lượng lớn sắc tố melanin cũng được tìm thấy, trong số những nơi khác như trên da của con người.
Những người có tông màu da tối hơn có xu hướng có nhiều melanin, được biết là hấp thụ ánh sáng và làm tiêu tan bức xạ tia cực tím trong da.
Tuy nhiên, trong nấm nó đã hấp thụ bức xạ và chuyển đổi thành một số loại năng lượng hóa học để phát triển.
Trong một bài báo năm 2008, Ekaterina Dadachova – nhà nghiên cứu thuộc Đại học Y Albert Einstein ở New York, đã lưu ý rằng loại nấm thu hút bởi bức xạ dường như không phải là ví dụ đầu tiên của loại này.
"Một lượng lớn bào tử nấm đã được tìm thấy trong các mỏ đá thời kỳ kỷ Phấn trắng đầu tiên khi nhiều loài động vật và thực vật chết”, Ekaterina Dadachova nói.
Thông tin này khiến các nhà khoa học nghĩ tới một giả thuyết đó là nấm có thể có những nơi xa xôi trong vũ trụ nơi sinh vật có thể sống trong môi trường đầy bức xạ.
Minh Long(TheoDantri)
Theo Fox News

Can Transmission Line Inspection Be Completely Automated?

Two EPRI studies suggest that large-scale automation of transmission system inspection is feasible in the near future.(EPRI = Electric Power Research Institute )
Increasingly, utilities inspect transmission systems by deploying drones to capture high-definition images of conductors, insulators, and other components. In most applications today, humans operate the drones and evaluate the images. By making drone-based inspections cheaper and less time-intensive, automation can drive widespread adoption.
In the first study, EPRI tested several low-cost, commercially available drones at a Georgia field site with energized and non-energized transmission structures. The drones autonomously followed complex, three-dimensional flight plans and captured images without striking the structures. Existing LIDAR data on the structures proved critical to successful flight planning. However, improvements are needed in image perspective and navigation.
In the second study, researchers examined the ability of nine machine learning technologies to evaluate thousands of images and identify defects in structures. Their performance was well above random prediction but well below human analysis. Larger image data sets are needed to train the technologies and improve their effectiveness, and researchers are collecting and curating additional images from utilities.
“To be successful, this research requires collaboration among utilities to pool and curate data and to test machine learning technologies,” said EPRI Senior Technical Leader Dexter Lewis. “Building an effective AI transmission and distribution inspection system is a challenge that is likely too large for any single utility, but together the industry can make a difference.”
EPRI plans to continue examining drone automation on energized transmission structures. EPRI has also established a broad AI initiative to facilitate collaboration among utilities, develop a research roadmap, collect and curate data sets for diverse applications, and educate electric power industry stakeholders.
Key EPRI Technical Experts:
Dexter Lewis

Thứ Sáu, tháng 2 07, 2020

Home Solar Power System Analysis & Update


California's Renewable Energy Problem