renewable

Scientists have developed a procedure to cheaply create hydrogen for fuel and oxygen gas

By Mark Shwartz -

Stanford University scientists have invented a low-cost water splitter that uses a single catalyst to produce both hydrogen and oxygen gas 24 hours a day, seven days a week.

The device, described in a study published June 23 in Nature Communications, could provide a renewable source of clean-burning hydrogen fuel for transportation and industry.

“We have developed a low-voltage, single-catalyst water splitter that continuously generates hydrogen and oxygen for more than 200 hours, an exciting world-record performance,” said study co-author Yi Cui, an associate professor of materials science and engineering at Stanford and of photon science at the SLAC National Accelerator Laboratory.

READ MORE ON STANFORD | NEWS

Ref: Bifunctional non-noble metal oxide nanoparticle electrocatalysts through lithium-induced conversion for overall water splitting.  Nature Communications (2015) | DOI:10.1038/ncomms8261

This giant Moroccan solar plant will bring energy to 1 million people

The world’s biggest solar thermal plant is being opened in the Moroccan city of Ouarzazate next month, and it’s expected to bring renewable energy to 1 million locals for 20 hours a day.

Built on the vast desert plains of the Sahara, the plant will have unfettered access to sunlight during the day, and the resulting heat will be used to melt large amounts of salt. This mechanism will allow the system to retain heat energy to power a steam turbine at night, giving the locals access to almost-round-the-clock renewable energy.

 - ScienceAlert

Is the world finally embracing renewable energy?

We hear an awful lot of bad news regarding climate change and governments’ latent reaction to this ongoing global issue. However, one expert, Professor Catherine Mitchell from the University of Exeter, now reckons that there has been a global shift in attitude, policy, flexibility, efficiency, investment and efforts towards renewable energy sources such as wind, ocean, and solar, while there has been a decline in fossil fuel investment. In fact, she argues that renewable energy investment has, for the first time, outstripped investment in “dirty fuels”. This is due to a number of reasons, mainly evidence informed policy on the importance of adaption and mitigation to climate change on regional, national and global levels. It is also becoming clearer that renewable energy system costs are lowering as social preference increases, all while improving energy security and greatly helping to meet carbon reduction targets. While Professor Mitchell is careful to stress that climate change is an ongoing, complex issue with firm action required behind policy, there seems to be cause for optimism. As the momentum for favouring renewable energy systems over older, conventional systems becomes the norm, is there hope that the world is finally acting on a problem recognised decades ago?

-GG

Sources: http://bit.ly/1mam4H1
http://bit.ly/1PQm4tw

Image: http://bit.ly/1KU3kSH

treehugger.com
Silent rooftop wind turbines could generate half of a household's energy needs

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Small, vertical axis wind turbines are the right size for residential and urban areas, but so far, they have lived in the shadows of their larger, horizontal axis counterparts. The power output is significantly lower (although a study has suggested that for the space they take up, they’re more efficient) and the noise they produce is louder than most homeowners can deal with.

GERMAN TOWN FUELED 100% BY RENEWABLE SOURCES

To live a greener and more energy-efficient lifestyle, travel about an hour south of Berlin to a town of about 125 people called Feldheim. In Feldheim, Germany, no gas or oil is burned and instead, the town is powered from 100% renewable energy via 43 wind turbines. This is all in an effort so that by 2050, Germany to run off of 80% renewable power.

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ALEC Influence Could Dismantle Ohio's Clean Energy Policies

Ever heard of ALEC?

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The American Legislative Exchange Council (ALEC) connects fossil fuel interests to legislators. And they are behind a coordinated effort to dismantle clean energy laws across the country. Ohio’s clean energy policies are currently at risk. 

But you might not know it…

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Even though the legislators pushing the anti-clean energy bill are deep in ALEC’s pocket.

Of the 21 Senators who voted “yes,” 15 are members of ALEC. None of the Senators who voted “no” have ties to ALEC.

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By 2020, there will be enough renewable energy to supply CHN, IND, and BRA combined.

Paris-based International Energy Agency (IEA) has predicted that by 2020, 26% of the world’s energy will come from renewable sources (solar, wind, hydro). The agency adds that the amount will be higher than the combined energy demands of country’s like China, India, and Brazil. The prediction was based on the assumption that in the next five years, 700 gigawatts will be added to the world’s current renewable energy capacity.

Read more at: http://futurism.com/links/by-2020-there-will-be-enough-renewable-energy-to-supply-chn-ind-and-bra-combined/

The EU created 23.4% of its electricity from renewable energy sources in 2012, with a total electrical output estimated at 763.5 TW. This represents an important increase from 2011, when these energy sources brought “only” 20.4 % of total electricity.

Austria and Sweden pave the way in what is possible for renewable energy with 68.3 and 67.1 % of their total electricity coming from renewables in 2012, respectively. The remaining 25 EU countries are following suit. Nine countries generated 20-50% of their electricity through renewables, including: Latvia (43.4%), Denmark (41.7%), Portugal (35.6%), Finland (32.5%), Spain (31.7%), Slovenia (29.5%), Italy (26.6%), Romania (25.2%) and Germany (24%).

In terms of the chosen technology, the statistics, taken from Euro Observer, have shown that hydropower represents 43.9 % of the total renewable energy produced in 2012. Wind follows with 26.6%, biomass (19.5%), and solar energy (9.2%). Geothermal and ocean energies make up the remaining 0.8 %. The renewable energy industry in the EU has employed more than 1.22 million people in 2012.

These figures show that the EU 27 are well on their way to achieving the 2020 goal of “20 % of renewable energy in the total energy consumption.”

We wish them luck.

-Jean

Source: http://www.energies-renouvelables.org/observ-er/stat_baro/barobilan/barobilan13-gb.pdf

homertribune.com
Hemp: foundation of an economy

The Latin name for the hemp plant is cannabis. Hemp is the English word for this useful plant that made ancient history. Hemp seeds provided high-protein porridge and often saved populations from famine. Oil pressed from hemp seeds provides fuel, lighting oil, paint base and cooking oil. Hemp meal (what remains after pressing the oil)…

 

infinitely-renewable-candle

Candles lend themselves extremely well to recycling, but the only problem is that it often requires some effort on your part, and the potential to make a mess. The Rekindle candlestick holder from Benjamin Shine on the other hand, takes care of all the hard work for you, and only requires that you insert a new wick every time your candle is “reborn.”

While this particular candle holder will set the mood, or provide you with a cheap light source for a very long time, it won’t last forever. Every time the candle burns all the way through, it will actually get a little bit smaller, but there’s nothing that can be done about that because it’s a fundamental chemical reaction.

source: Dark Asylum Radio

The Dance at Alder Cove

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☽✪☾Youth/Father/Geezer☽✪☾

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Customs of the Ancestor

Rooftop solar kit doubles as water reservoir

In developing nations near the equator, the weather comes in extremes — the sun is at its strongest, while rainfall levels are also the highest in the world. At the same time, the same areas are blighted by a lack of electricity and clean drinking water. In order to tackle both of these issues, designers in Mexico have developed the PhotoFlow, a device that harnesses energy from the sun in good weather and collects and filters rainwater in bad weather. READ MORE…

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Solar Flat-Pack Classrooms For Kenya

The first of 47 prefabricated, solar power classrooms manufactured by Aleutia and destined for each of Kenya’s counties has been installed.

This first classroom is in Kiambu county. It measures 3 metres by 6 metres classroom and consists of 10 fanless Aleutia computers and a teacher’s PC/server with 512GB SSD loaded with offline Wikipedia and Khan Academy.

The classroom is run entirely on 12V DC and powered by pair of 250W panels plus a single charge controller charging deep cycle batteries.

Aleutia fanless PC’s draw very little power – depending on the model, they have a maximum peak power consumption of between 15 and 21.7 watts and the server, 75 watts. While fanless, the computers can function in temperatures of up to 50 degrees Celsius and are built to withstand humidity and dusty conditions.