Alternative Energy

Digester project near Tulare would turn organic waste into renewable transportation fuel

From The Bakersfield Californian:

BY JOHN COX The Bakersfield Californian jcox@bakersfield.com

Food processors, dairies and others in Kern County may soon have a new place to send their organic waste — and with it, a new source of renewable, compressed natural gas.

This month, two state agencies awarded grants totaling $8 million to help fund construction of a $25-million biogas digester outside Tulare believed to be the first commercial-scale project…

Read more: http://www.bakersfieldcalifornian.com/local/x1524580875/Digester-project-near-Tulare-would-turn-organic-waste-into-renewable-transportation-fuel

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Turning waste water into fuel

From Sowetan Live:

MATAGALPA, Nicaragua – That morning cup of coffee gives many of us a needed boost, but Central American coffee farmers have found a new source of energy in their beans: turning agricultural waste water into biogas.

An often overlooked by-product of the world’s favourite stimulant, the water used to process raw coffee beans is usually dumped back into the environment untreated. In Central America, locals call it “honey water” because of its sweet taste and yellowish colour.

Extremely polluting, it is high in methane gas – a leading contributor to global warming produced, in this case, by the fermentation of the coffee tree’s berries.

Across Nicaragua, the 1.3million sacks of coffee produced annually generate pollution equivalent to about 20000 cars. Now a pilot project at 19 farms in Nicaragua, Guatemala and Honduras is treating that water, separating out the methane and using it to fuel electric generators.

“Look how high that flame is,” said Sarahi Pastran as she…

Read more: http://www.sowetanlive.co.za/news/2014/12/13/turning-waste-water-into-fuel

These Green Roofs Are More Than Just A Garden, They’re Also A Power Plant

Green roofs produce food, cool buildings, and add a dash of color to the skyline. In the future, could they also generate electricity?

That’s the vision of Marjolein Helder and her Dutch startup Plant-e. Helder has developed a modular system that generates power from submerged plant roots. Eventually, it could power whole households, she says.

More here: http://www.fastcoexist.com/3039194/these-green-roofs-are-more-than-just-a-garden-theyre-also-a-power-plant

26 November 2014

Alternative Energy

Low tech full with huge payoffs. Click here

Fuel cells, powered by biogas, hydrogen or…? Click here

Is climate the mother of invention? Click here

To-day’s compost, tomorrow’s truck fuel? Click here

Pistachio shells as a source of fuel? Click here

Poo bus! Click here

Anaerobic bacteria used to ‘clean’ biogas. Click here

30 million stoves to be replaced with biogas, from Bangladesh. Click here

30 October 2014

Gardening

Green waste recycling. Click here

A horse ploughed garden. Click here

A guerrilla gardener! Click here

Meet the head gardener at River Cottage HQ. Click here

Food

A food film without the preaching. Click here

Insect cuisine? Click here

Farming

Going the extra step: off the grid living in the US. Click here

Using drones in the US to avoid gag laws at factory farms. Click here

Learning to read the weeds. Click here

USDA extends habitat funding for honeybees. Click here

Alternative Energy

Biogas, a low tech fuel with huge payoffs. Click here

13 October 2014

The Biochar Edition.

Why the decline in golf is great for the environment. Click here

Biochar works ‘magic’ in the soil almost immediately. Click here

Fuel and biochar from the one renewable source. Click here

A green space integrating energy, food and sustainability. Click here

Bioenergy: Australia’s forgotten renewable energy source. Click here

Biochar improves sand and clay. Click here

A biochar kiln for the developing world. Click here

A mobile pyrolysis unit produces fuel and the byproduct is biochar! Click here

18 August 2014

Gardening

A follow up on the soil testing piece last week. Click here

Don’t forget the flowers. Click here

Farming

An old farm restored to organic methods. Click here

Finding the middle ground on GMOs? Is it even possible? Click here

Integrating organic farms into new developments, from Trinidad. Click here

Crop survival in a warmer climate. Click here

Rain affects Ukraine wheat crop. Click here

Sustainable, green alternative inputs create possibility of food and energy independence. Click here