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These Maasai women have developed an eco-friendly way to turn invasive cacti into bio-fuel

These Maasai women have developed an eco-friendly way to turn invasive cacti into bio-fuel

In Kenya, Maasai women have found an eco-friendly solution to an invasive and hazardous plant.

Parts of the opuntia cactus are edible, but its outer layers are covered in spikes and harmful to livestock which try to graze on it.

A group of women are now transforming the prickly pear into a bio-gas and preserves.

It is bringing them a form of employment and a method of empowerment.

 

Kenya’s livestock threatened by invasive cactus

The wilderness of Laikipia County, near Nairobi, is home to goats and cattle that roam freely.

They are frequently attracted to grazing on prickly pears, but these are an invasive species which threaten the natural environment.

The cacti were introduced by colonialists in the early 1900s as a natural fence and have morphed into an invasive menace that outcompetes native plants.

Its seed gets widely dispersed by the wind and the animals that pass through.

The hairs which cover the fruit can cause internal obstructions when eaten by animals, posing a significant threat to livestock.

Local farmers say the cactus now competes for critical resources, jeopardising community lands, wildlife reserves and livestock ranches.

Its encroachment also hinders wildlife navigation as well as reducing grazing areas.

Naimadu Siranga, a 65-year-old herder, has witnessed the devastation of the cactus firsthand, leading to the loss of over 150 of his goats and sheep.

“I once maintained a herd of more than 100 goats. Unfortunately, a series of losses ensued when they started consuming cactus plants, which led to mouth injuries, severe diarrhoea, and ultimately, the demise of my livestock,” he says.

“These circumstances have inflicted significant financial setbacks.”

 

Women’s group transforms cacti into bio-fuel

Now a women’s group in Laikipia County is transforming the cacti from a problem into a new enterprise.

They harvest the prickly pear and turn it into biogas which they can use in their homes.

The Iloplei Twala Cultural Manyatta Women Group has 203 members who are now employed in converting the cactus pulp into fuel.

This approach not only eradicates the cactus but also promotes environmental conservation and offers an alternative livelihood for the women.

“We came together because in Maasai culture, women do all the domestic work and own nothing at home,” says Rosemary Nenini, a member of the group, “so we want to empower ourselves.”

The fruits from the cactus are edible for both humans and animals if separated from their sharp spines.

So the Twala women at Laikipia Permaculture are also using the fruit to create a range of products including jams, cosmetics and juices. This generates an independent income for them.

 

Cacti pose a danger to baby elephants

Loisaba Conservancy, a 58,000-acre wildlife habitat in northern Kenya, home to iconic species such as lions and wild dogs, also grapples with the invasive cactus.

Animals unwittingly facilitate the spread of this invasive plant. Baboons, elephants, guinea fowl, and tortoises consume the sweet fruit and disperse the seeds.

However, elephants, while skilled at extracting the fruit from the spiny thorns, sometimes suffer from digestive issues due to the fruit’s small hairs.

“If the elephant is young, the hairs of the fruit can irritate the gut lining, create diarrhoea and sometimes even irritation in the gut,” says Tom Silvester, the Conservancy’s Chief Executive.

Combatting this invasive species proves challenging, as it spreads aggressively, even on barren rock.

Traditional removal methods, like manual labour and burning, have proved ineffective.

Teams now use heavy machinery to uproot the cactus, transferring it to designated areas and burying it in deep pits to minimise carbon emissions during decomposition.

This strategy results in fertile zones where native plants can regenerate and flourish.

As of June 2023, Loisaba Conservancy successfully cleared 3,100 acres of opuntia, marking a significant step in the fight against this environmental menace.

Research scientist Winnie Nunda from the Centre for Agriculture and Bioscience International says it’s a step towards preserving the country’s biodiversity.

 

 


 

 

Source    euronews.green

Chile races China For global green hydrogen boss crown

Chile races China For global green hydrogen boss crown

Whelp, that was fast. No sooner does the firm Sinopec announce a massive new green hydrogen project in China to the tune of 20,000 tons per year, when along comes Chile with plans for a new project dubbed H2 Magallanes, which could pump out more than 880,000 tons per year. It seems the green hydrogen trend has legs after all, and plenty of them.

 

Chile Has Big Plans For Green Hydrogen

For those of you new to the topic, green hydrogen is a relatively new field. It leverages the low (and falling) cost of renewable energy to pry hydrogen gas out of renewable resources, mainly water. Biomass is also in the mix,but most of the activity is centered on water-splitting systems, powered by wind or solar energy.

Green hydrogen can be used as a zero emission fuel. It can also have numerous applications in  agriculture, industry, food processing, and pharmaceuticals, among other areas that depend on hydrogen. That makes green hydrogen a major threat to fossil energy stakeholders, because almost all of the global hydrogen supply currently comes from coal and natural gas.

Chile’s sudden interest in new clean technology may seem sudden. It isn’t. The nation is better known for exporting fruit and fish, but copper is actually its top export, and copper is a key element in the electrification movement.

The copper connection helped sparked Chile’s interest in wind and solar energy several years ago, along with its history in bioenergy, hydropower, and geothermal resources. In 2015, the country launched a new clean power and energy efficiency plan that made a modest but noticeable impact on the nation’s wind and solar profile over the ensuing 5 years, as charted by the International Energy Agency.

Chile still has a long row to hoe before it can ditch fossil energy. H2 Magallanes could help shorten the timeline by providing a model for the rapid scaling up of renewable hydrogen.

If it all pans out, there could be a virtual bottomless pit of investor dollars heading for the green hydrogen hills of Chile. The financial muscle behind the H2 Magallanes project comes from the France-based independent power producer Total Eren. As the name suggests, Total Eren used to be Eren RE until 2017, when the leading fossil energy stakeholder Total S.A. entered the picture as an indirect stakeholder.

By April 2019, Total S.A. acquired a total stake of almost 30% in Total Eren, and then just last June Total S.A. changed its name to TotalEnergies, signifying the company’s new commitment to be a “a world-class player in the energy transition.”

 

800,000 Tonnes Of Green Hydrogen On The Way

TotalEnergies is apparently one of those fossil energy stakeholders that sees new bottom line opportunities in the green hydrogen field. It remains to be seen how serious they are, but TotalEnergies seems to have recognized that hydrogen buyers are demanding green hydrogen from renewable resources.

That’s a start, though TotalEnergies could leave some wiggle room for carbon capture through a new “clean” hydrogen fund it established last year in partnership with the firms Air Liquide and VINCI, among others.

Meanwhile, TotalEnergies and Total Eren have already launched several large scale green hydrogen projects in various countries, and H2 Magallanes is the biggest one yet.

Total Eren outlined its plans in a press release dated last December 2. It’s way too early to break out the bubbly, since the project is still in the planning stages. Still, they seem pretty optimistic that the vision will become reality.

The initial plans call for up to 10 gigawatts in onshore wind power near the borough of San Gregorio, in the Magallanes region of southern Chile. Another 15 could come on board for a total of 25 gigawatts by 2030, but even at 10 gigawatts of wind power the initial stage of the project is impressive. It will come with up to 8 gigawatts of electrolysis capacity, in addition to a desalination plant and a green ammonia plant, too (more on that in a sec).

If all goes according to plan, construction will begin in 2025 and green production will begin in 2027.

 

Chile Takes On The Green Hydrogen Hard Sell

As a matter of national policy, Chile is determined to count green hydrogen among its leading exports as soon as possible. In 2020 the company issued a new National Green Hydrogen Strategy. Our friends over at SP Global took note and had this to say:

“As a net importer of fuels, Chile has not been a significant player in global energy markets. But the sun-drenched, wind-rich South American country aims to become a titan in the burgeoning green hydrogen economy, setting a goal to become one of the world’s top three exporters by 2040.”

In its introduction, the new report concedes that there has been a lot of “hype around hydrogen.” However, the report comes down hard on the side of the green hydrogen economy, and it details why Chile is sitting in the catbird seat.

“What we lack in size, we more than make up for in potential. In the desert in the North, with the highest solar irradiance on the planet, and in the Patagonia in the South, with strong and consistent winds, we have the renewable energy potential to install 70 times the electricity generation capacity we have today,” they state. “This abundant renewable energy will enable us to become the cheapest producer of green hydrogen on Earth.”

 

Who Will Be The Earth’s Next Top Green H2 Producer?

It looks like the H2 Magallenes project will enable Chile to get a running start on its low cost green hydrogen goal.

They will have plenty of competition as the field heats up. Among the more interesting developments is an experimental project that parks electrolysis systems on offshore wind turbines.

As for the danger that “hydrogen hype” could end up increasing the use of conventional hydrogen overall, that is clearly going to be an issue over the short term.

However, hydrogen is the main ingredient in ammonia fertilizer, and that should help align the global agriculture industry on the side of green sourcing.

In addition, the global shipping industry is eyeballing green ammonia fuel as a decarbonization pathway. That circles back around to TotalEnergies’ acknowledgement that leading hydrogen buyers are seeking sustainable sources.

Here in the US, things have gotten off to a slow start. Last summer the Department of Energy sent a strong signal by making renewable hydrogen a focus of its new “Earthshot” series of clean tech initiatives, though it still allows for fossil sources to maintain a foothold.

Unlike Chile, the US has considerable domestic fossil energy resources along with politically powerful stakeholders such as US Senator Joe Manchin of West Virginia, which could explain why the Energy Department is hedging its hydrogen bets. Still, green hydrogen appears to have an edge, so it will be interesting to see what tack the Energy Department takes when the next round of hydrogen R&D funding comes up.

Follow me on Twitter @TinaMCasey.

 


 

Source CleanTechnica

Sydney pitches for green hydrogen leadership

Sydney pitches for green hydrogen leadership

The New South Wales capital, Sydney, will host the largest renewable gas trial in Australia after the conservative Liberal-National state government approved NSW’s first hydrogen gas facility.

The Western Sydney Green Gas Project was given so-called fast-track approval status as part of NSW’s post-coronavirus recovery just three weeks ago, and now has a formal sign-off.

NSW Planning Minister Rob Stokes told The Sydney Morning Herald newspaper the project, backed by Jemena and the Australian Renewable Energy Agency (ARENA), would serves as a prototype for future green hydrogen projects.

“It will operate as a trial over five years to demonstrate the commercial feasibility of power-to-gas technology, providing NSW with an opportunity to revolutionise the fuel and gas industry and create opportunities for low emissions technologies and jobs,” Mr Stokes said.

 

NSW Planning Minister Rob Stokes | Source: NSW Government

 

The $15 million-plus project will convert mains tap water and grid electricity from renewable sources into hydrogen gas, hence the “green hydrogen” tag.

The hydrogen gas will then be injected into the gas distribution network to supply homes, power buses and generate electricity.

Michael Pintabona, a Jemena spokesman, said the company welcomed the announcement as “a crucial next step towards bringing renewable hydrogen gas to the New South Wales gas network”.

“At this challenging time, government support for projects like this is pivotal and will help bring new jobs and economic activity to Western Sydney,” he said.

Construction, including the installation of NSW’s first electrolyser, which uses electricity to split water into hydrogen and oxygen, will start within three months and be completed by early next year.

NSW Energy Minister Matt Kean told The Sydney Morning Herald the project would help position NSW as a national leader in green gas supply and storage projects and assist the state’s transition to a low-greenhouse gas energy system.

“It will also help us reach our ambitious aspiration of injecting 10 per cent hydrogen into our gas network by 2030,” Mr Kean said.

 

NSW Energy Minister Matt Kean | Source: Monthly Chronicle

 

The state government had drawn some criticism for its plan to accelerate a range of coal or methane gas-related projects, some of which were unlikely to generate many near-term jobs or fresh investment.

While hydrogen is expected to play a major role in the future, the source of the energy to make it could be controversial.

So-called blue hydrogen could be made using gas or coal although the related emissions generated would make it less attractive to importers seeking to wean themselves off fossil fuels to combat climate change.

 


 

Source Eco News