News, Pollution, Renewable Energy

Natural gas is not a clean energy bridge, further studies find

Natural gas will not dawn a cleaner day in terms of energy. Image via Ohio Citizen.

A trio of newly published studies showed once again that natural gas is not a clean energy bridge – the studies highlighting the various problems associated with natural gas. Firstly, it was shown that emissions databases underestimate the methane released from fossil-fuel extraction in the U.S. Southwest. “A global gas boom is not a replacement for energy and climate policies,” write…

News, Renewable Energy

Lockheed Martin announces 10 year plan to reach cold fusion, scientists react with skepticism

Lockheed Martin fusion project leader Tom McGuire looks into the chamber of an experimental reactor.
Image credits: Lockheed Martin.

Lockheed Martin has officially entered the race to achieve nuclear fusion at room temperature on 15 October, laying out a 10-year roadmap to commercialize a reactor that would fit on the back of a lorry. The company has been working on the project for several years, but they’ve been extremely secretive about it until now, when they’ve released a grandiose plan…

News, Physics, Renewable Energy

Hybrid Semiconductors might Smash PV Efficiency through the Roof

When light is absorbed in pentacene, the generated singlet excitons rapidly undergo fission into paris of triplets that can be efficiently transfered onto inorganic nanocrystals. Credit: Maxim Tabachnyk

A team at University of Cambridge have harvested so-called ‘dark’ spin-triplet excitons with close to 100% efficiency, a breakthrough achievement which could vastly improve the efficiency of hybrid solar cells that use both organic and inorganic semiconductor junctions. An exciting solar future Excitons are basically electrons coupled to a hole (they’re attracted to each other and form a pair). An electron gets…

News, Renewable Energy, Technology

Near Perfect Solar absorbing Material developed at MIT

Cross section of the metallic dielectric photonic crystal. Image: MIT

Researchers at MIT report they’ve developed a novel material that can absorb almost all incoming wavelengths of light and convert the energy into heat. The radiated heat emitted by the material can then be collected by photovoltaics for later conversion into electricity. The material is cheap to make using currently available manufacturing processes, can absorb light indifferent of the incident…

Art, Feature Post, Renewable Energy

Solar Hourglass might power 1,000 Danish Homes while inspiring Climate Change Action

LANI

Every year, the Land Art Generator Initiative (LAGI) in Copenhagen welcomes renowned designers and engineers to submit designs that integrates renewable energy in harmony with citizens, nature, and the urban environment. This year’s winning entry is a fantastic solar power array that takes the form of a hourglass, unveiled by Argentina-based designer Santiago Muros Cortés. The project, if constructed, would power 1,000 Danish…

News, Renewable Energy

The UK’s First Floating Solar Farm Unveiled in Berkshire

Image via the Guardian.

The UK’s first floating solar farm has been unveiled in Berkshire; the array features 800 photovoltaic panels and has a capacity of 200W. The project cost £250,000 ($405,400) and has been installed on a reservoir at Sheeplands Farm near Wargrave. Solar energy provides many advantages, but also raises many problems. Among those problems is land area – whenever you use an…

Environmental Issues, News, Renewable Energy

Natural gas does little to curb emissions and mitigate climate change

Coal fired power plant in Germany. US policymakers are considering substituting coal for natural gas by 2030 to tackle the warming of the planet. A new study concludes this won't be the case. Photo: Ralph Orlowski/Getty Images

Given the shale boom, the United States has now become the world’s leading natural gas producer. Because it only releases 50% as much emissions for the same equivalent amount of energy produced by oil or coal, many have herald it as a cleaner source of fossil energy, whose widespread introduction might help mitigate global warming. A new study found that…

News, Pollution, Renewable Energy

Public transportation holds key for cleaner city, fights against climate change

A bus in Dubai - public transportation can go a long way in sustainability and climate stability.

It may seem clear, but you need a study to have certainty: public transportation is cheap and “green”. A recent research concluded that effective public transit systems can provide a cost-effective solution to fighting global change at a global level. If public transits are improved throughout the entire world, the report shows that urban transportation could be cut by more than half by…

News, Renewable Energy

New electrolysis system produces hydrogen 30 times faster

A scheme that shows two methods of hydrogen generation: electrolysis and methane reforming. Image: jaea.go.jp

A new method of producing hydrogen has been reported by researchers at University of Glasgow that’s 30 times faster than current state-of-the-art methods, providing yet another advance that might one day lead to a sustainable hydrogen based economy. There’s only so much that renewable energy can grow with today’s infrastructure due to base load considerations. If the intermittency can be…

News, Renewable Energy, Technology

Stanford scientists split water with device that runs on an ordinary AAA battery

14193-splitter_device

Researchers from Stanford have found a way to split water into oxygen and hydrogen using very little energy; the hydrogen they obtain could be used to power fuel cells in zero-emissions vehicles. I’m quite excited for cars that run on hydrogen, which are set to hit the market in 2015; but while they are always presented as “zero emission cars”, many of…