This year’s Nobel prize in Physics is all about energy efficiency as it was awarded to three Japanese scientists for their invention of the blue LED. This enabled the world to have super efficient LED light bulbs.
Fluorescent tubes are everywhere : in offices and homes and of course, in supermarkets and factories. This ubiquitous lights are used in a staggering amount of 12 billion sockets to Philips.
The company has developed an alternative based on LED technology : the InstantFit LED lamp. Up to 40 percent more efficient than traditional T8 fluorescent tubes, it could quickly replace old models.
As TreeHugger reports, switching all these lights could lead to switching off the equivalent 210 medium sized power plants.
The capital city of Argentina, Buenos Aires, have switched its 125,000 streetlights to LED. This will cut energy consumption by half and will last five times longer. With 13 million inhabitants, it is the second largest city in South America.
To TreeHugger : ” That’s just one city. It’s estimated that if cities around the world made a switch to LED tech like Buenos Aires, savings would add up to €130 billion ($180 billion) in reduced energy costs each year. “
” It would also prevent 670 million tons of CO2 from being released into the atmosphere each year. Not bad for streetlamps! ” This just shows that energy efficiency works.
The previous nights were the occasion to see the Perseid meteor shower. It was also the Nuits des Etoiles in France, where hundreds of events are organized to allow people to watch stars and (re)discover the sky and stars above our heads.
As you perhaps know, I am quite an astronomy fan and I believe it is very sad that the skies aren’t dark anymore. So when Grist published an article about a cute animation on that very topic I knew I had to share it with you.
Borrowed light by Olivia Huynh made me wish for a darker sky and to be able again to enjoy the marvels of the stars, galaxies and nebulae.
My time out for the past two weeks in southern France was the occasion for me to think a bit about energy and environmental issues as I was experiencing stuff I have been writing about on this blog.
Exemplifying with day-to-day and real-life examples is a fantastic opportunity to see how stuff just works. From LED lights to trees and from solar to building insulation, these are topics that are very general.
I will share these thoughts with you in today’s article and I hope you will find them enlightening. I look forward to reading your thoughts.
According to a study carried out in the United States by the local Department of Energy (DOE), the 49 million LED light bulbs already installed helped save a massive $675 million (over 500 million euros) in a single year.
But wait, there is more as if all light bulbs in the United States were replaced by such bulbs, the potential savings could be the absolutely huge amount of $37 billion (27 billion euros) per year !
This would half the amount of energy consumed for lightning in the US. Now let’s imagine what this would lead in terms of decreased greenhouse gases emissions in the United States alone.
You may perhaps remember the not so distant time when I was posting astrophotography pictures on this very website. I have also wrote a few times on how we are lighting up our cities too much.
Now a fellow Frenchman, Thierry Cohen, created a series of pictures of what the night could look like if cities like Paris, New York, Shanghai or Sao Paulo were to turn of all their lights. The result is quite stunning.
Not that I am advocating turning off ALL lights at night in our cities, I am just thinking that we should see more stars at night.
Incandescent light bulbs are a relic of the past, a vastly inefficient past. Modern alternatives like CFLs and LEDs consume five to ten times less energy. For these reasons, the European Union or Australia have already phased them out. More countries will be doing the same, namingly the United States and China. The latter will … Read more
While reading the tweets of the people I follow, one from Andrew Revkin got my attention : “ H. sapiens, innovator: Solar “light bulbs” from water-filled soda bottles brighten tin-roofed slums. “
This was how I got introduced to Isang Litrong Liwanag ( “A Liter of Light” ), one of the most brilliant ideas I came across while writing for this blog. The tweet was followed by a link to a Youtube video – watch it below.