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Agricultural Waste Generating Electricity

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Agriculture around the world produces a great deal of waste as a by-product. It can be animal faeces, or the discarded plant husks thrown away when rice, grains or maize are harvested. When this waste meets the urgent need for electricity, something special can happen.

The number of people still without electricity in the South is vast. The failure of major electricity generating power stations to reach so many people has spurred entrepreneurs to come to the rescue. Power is critical to so many things: small businesses need it, anyone wanting access to computers and the Internet needs it, and modern appliances like refrigerators run on it. During the past 25 years, electricity supplies have been extended to 1.3 billion people living in developing countries. Yet despite these advances, roughly 1.6 billion people, a quarter of the global population, still have no access to electricity and some 2.4 billion people rely on traditional biomass fuels, including wood, agricultural residues and dung, for cooking and heating. More than 99 percent of people without electricity live in developing regions, and four out of five live in rural areas of South Asia and sub-Saharan Africa (International Energy Agency, IEA).

Power outages in Africa are a serious and frequent problem and a significant force holding back development. With global oil prices on the rise, turning to diesel generators is an expensive option.

According to the IEA, the lack of electricity leaves poor countries “trapped in a vicious circle of poverty, social instability and underdevelopment.”

In India, 80,000 of the country’s half a million villages lack electricity. Two students, Charles Ransler and Manoj Sinha, have started a business providing electricity to some of these villages by turning rice husks – a by-product of rice milling – into gas that then powers an electricity generator.

Already, two of their rice-burning generators are providing electricity to 10,000 rural Indians. The hope is to rapidly expand the business to hundreds of small village power plants.

The business, Husk Power Systems, was started while the two were at the University of Virginia’s Darden School of Business.

While the generator burns the rice husks to make a gas to produce electricity, it also leaves behind a waste product of ash that is sold as an ingredient in cement.

This technology can provide off-grid power to rural Indian villages of 200 to 500 households. Using the husk-powered mini power plant, the team plans to offset close to 200 tons of carbon emissions per village, per year in India.

The idea for the rice husk generators was originally conceived by Sinha and Gyanesh Pandey, the third partner in Husk Power, who left an engineering career in Los Angeles to return to India and oversee the rice husk project. Sinha and Pandey went to college together in India and both come from rural Indian villages that struggle with a lack of electricity.

“We grew up in those areas,” said Sinha. “Our relatives still do not have electricity. We wanted to give back to those areas.” Originally they envisioned refining the generator concept and raising enough money to donate rice-husk generators for two or three villages near where they grew up, said Sinha.

But instead, after some research, they realised it could be a financially viable business expandable to hundreds of villages. There are 480 million Indians with no power and 350 million of them live in rural villages, concentrated in eastern India’s “Rice Belt,” where the villagers are “rice rich and power poor,” said Ransler.

The project has already won a fistful of prizes, including US$50,000 from the Social Innovation Competition at the University of Texas.

They think that each rice husk generator is to break even in about two and a half years.

And they like to think this is the Starbucks of off-grid electricity generation, potentially as successful as the globe-spanning US coffee shop chain. “You can put one of these in 125,000 locations, hire local people, and turn a raw material into money – just substitute rice husks for coffee beans,” said Ransler.

Another maker of biomass mini power plants in India is Decentralised Energy Systems India (DESI power). It is a New Delhi-based non-profit company specialising in building a decentralised power network for rural India. It was formed by Development Alternatives, India’s largest sustainable development NGO. It is able to provide a megawatt of electricity to a village for the cost of 44 million rupees, rather than 57 million rupees from the central grid.

Published: June 2008

Resources

https://davidsouthconsulting.org/2022/10/06/battery-business-brings-tanzanians-cheap-electricity/

https://davidsouthconsulting.org/2023/02/03/environmental-public-awareness-handbook-case-studies-and-lessons-learned-in-mongolia/

https://davidsouthconsulting.org/2021/02/01/kenya-turns-to-geothermal-energy-for-electricity-and-growth/

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator.

https://davidsouthconsulting.org/2021/03/05/southern-innovator-issue-5/

Creative Commons License

This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2022

Categories
Archive Development Challenges, South-South Solutions Newsletters

Successful Fuel-Efficient Cookers Show the Way

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

A Kenyan entrepreneur has cooked up a fuel-efficient stove and oven that uses less of a precious national resource: wood from trees.

Most African households using fuel-burning stoves either cannot afford clean-burning fuels like natural gas or electric stoves, or do not have access to them. They are stuck having to burn wood or other materials like animal dung – collectively called biomass – on open fires.

As well as using up wood and contributing to deforestation, there is another downside to these stoves. The use of polluting fuel-burning stoves by half the world’s population – including 80 percent of rural households – is a documented contributor to a host of health problems. Poor households not only have to contend with the ill health effects of dirty water and poor sanitation, the fumes from burning dung, wood, coal or crop leftovers lead to the global deaths of more than 1.6 million people a year from breathing toxic indoor air (WHO).

Two solutions in Kenya are helping people to cook more efficiently (meaning less time wasted on gathering material to burn, and less fuel used) and reducing cooking time by using heat more effectively.

Invented by Dr Maxwell Kinyanjui, the Kinyanjui Jiko is a fuel-efficient charcoal oven that comes in small, medium and large industrial sizes. Made entirely in Kenya, the ovens are custom designed for a variety of environments, from domestic household use and on-the-go safari models to high-capacity models for micro-enterprises and large institutions. Cooks can use the ovens to bake, toast, steam or boil. And they are 40 percent cheaper than cooking with electricity and between 15 and 20 percent cheaper than gas.

Kinyanjui’s Musaki Enterprises Ltd. (www.reskqu.blogspot.com/2009/01/arboretum-project.html) has developed a reputation for pioneering work in developing fuel-efficient stoves and ovens. Its most popular success to date has been the Kenya Ceramic Jiko (jiko is Swahili for cooker), or KCJ, a cheap, simple and effective stove. The company was set up in 1992, but has been involved in international aid-funded research and development efforts since the 1980s.

“My dad was on a very good team of highly motivated individuals in the early 80s who developed the stove through pragmatism, logic and good old-fashioned ingenuity,” said his son, Teddy Kinyanjui. “He then set up the independent Musaki Enterprises.”

The KCJ uses a ceramic liner placed inside a metal container. The metal is usually recycled, often taken from 55 gallon steel drums. The ceramic liner stops the heat energy from simply escaping into the environment and helps to focus the heat on cooking. Simply adding the ceramic liner reduces the stove’s fuel consumption by between 25 and 40 percent. The charcoal or wood sits in the ceramic basin and the burnt ash falls through holes in the bottom of the liner.

The stove design was a result of international and Kenyan cooperation, and has become popular in many African countries, including Uganda, Rwanda, Ethiopia, Malawi, Niger, Senegal and Sudan. It is used in 50 percent of urban homes in Kenya and 16 percent of rural homes.

Musaki Enterprises say the KCJ stoves on average save between 1 and 1.5 tons of CO2 per stove per year compared to other models. In supermarkets, the KCJs retail for around US $5 and the Kinyanjui Jiko ovens start at around US $100.

The deployment of the KCJ stoves has helped in slowing the deforestation of the country, but has not been able to bring it to a halt because of population growth and poor re-forestation efforts, says Teddy Kinyanjui.

“The lack of forward planning in tree planting is making firewood and charcoal harder and harder to obtain,” he said. “Fossil fuels are unavailable or unaffordable. Tree planting must begin now on a huge scale for people to continue cooking.”

Teddy won’t reveal how profitable the KCJ stoves have been, but says, “I wouldn’t have gone to school if they didn’t sell well.”

“Well, more and more people keep buying the damn things as fast as we can make them, so I think our customers like them,” he said. “They really all seem to like that the stoves cook really well for really cheap and are very high quality.”

Published: June 2009

Resources

https://davidsouthconsulting.org/2021/02/20/baker-cookstoves-designing-for-the-african-customer/

https://davidsouthconsulting.org/2022/02/14/cleaner-stoves-to-reduce-global-warming/

https://davidsouthconsulting.org/2022/02/11/cooking-bag-helps-poor-households-save-time-money/

https://davidsouthconsulting.org/2022/02/15/innovative-stoves-to-help-the-poor/

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator. 

https://davidsouthconsulting.org/2021/03/05/southern-innovator-issue-5/

Creative Commons License

This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2022

Categories
Archive Development Challenges, South-South Solutions Newsletters

Battery Business Brings Tanzanians Cheap Electricity

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Access to electricity is critical for making substantial development gains. With steady supplies of electricity, it is possible to read and study at night, to run modern appliances, to better use the latest information technologies and to work using time- and labour-saving devices. A home with electricity literally switches the light on modern life and gives a family huge advantages compared to those without electricity.

But there are two potential obstacles to providing electricity for the poor: one is just getting access to a steady supply; the other is paying for it.

In Africa, much of the population suffers from an electricity famine. The situation is worse than on any other continent: the proportion of people in Africa still without electricity is higher – and the rate of urban electrification is lower – than anywhere else. Four out of five rural residents in Africa live without electricity. The rate of rural electrification is also lower than on any other continent and the proportion of Africans who depend on inefficient traditional energy sources is higher than elsewhere (Desertec-Africa).

EGG-energy (http://egg-energy.com) is a Tanzanian company using an innovative business model to bring affordable electricity to rural communities.

Its co-founder, Jamie Yang, said Tanzania has a huge potential market for offgrid energy services. About 85 per cent of the population lacks access to electricity, a figure that rises to 98 per cent of the rural population.

EGG-energy says it is “dedicated to helping low-income consumers in sub-Saharan Africa gain access to clean, affordable energy, using a unique strategy based around portable rechargeable batteries.” The company has eight full-time staff based in their Makumbusho office, 6 kilometres north of Dar es Salaam, the capital.

It calls its system the “portable grid,” and it works like this: customers have a power system installed in their home that runs on brick-sized, re-chargeable batteries. The batteries are re-charged at a central charging station using power from the Tanzanian power grid, and sent to local distribution centres where customers can pick them up. Customers rent the batteries for a subscription fee, and they last about five nights in a home. When the battery is empty, the customer returns it, swaps for a fresh battery and pays a small swapping fee.

It is a brilliant solution to the problem of getting power from the main Tanzanian power grid to people’s homes. According to EGG-energy, most Tanzanians live within 5 kilometres from a power grid line. Yet the majority of the population lack access to electricity.

“After researching the energy situation in Tanzania and other countries with similar electricity access problems, it became clear that one of the primary problems was a lack of last-mile distribution,” explained Yang. “The only way to get power from the source into homes and businesses were power lines, and for the vast majority of rural Tanzanians, this was very much out of reach.

We saw situations in which power lines would pass right over large populations that were still using kerosene for lighting. We also saw that distributed generation like solar was finding only very limited markets because there was no share or sell power from that source without an affordable way to distribute the electricity.”

While EGG-energy is based in Tanzania, it hopes hope to expand across the developing world.

In order to develop an effective distribution network, EGG-energy partners with local store owners and delivery businesses to help with distributing the batteries. The batteries are based on those used in the airline industry and are light enough to be held in one hand.

Yang believes marketing is critical to the success of the technology.

“Don’t underestimate the cost of sales, marketing, and distribution,” he said.

“Many companies focus on the technology and in lowering the cost of the technology, while not paying enough attention to the gaps in the distribution channels.

“We have a sales team that communicates what we do through a variety of methods, including door-to-door sales, road shows and village meetings. We also make contact with the local political leaders and offer referral awards to our existing customers. Potential customers come to our charging stations to purchase the system and to connect to EGG.”

When a customer signs up with EGG-energy, a technician is dispatched to their home to make sure the electricity system is sound and effective. The company also sells energy-efficient lights, radios and mobile phone chargers to complement the electricity system. It’s a wise business model, since having a steady and reliable supply of electricity is a great motivator for customers to purchase other electric-powered appliances.

“We have technicians that have received vocational training through the Tanzanian system and technicians that we train ourselves,” Yang said. “We have very standardized electricity installations that are easy to teach, and have more experienced technicians that we rely on for troubleshooting and support.”

EGG-energy also makes the claim it can reduce a household’s energy expenses by 50 per cent as they make the switch from traditional batteries for radios and kerosene lamps for light.

EGG-energy calls itself a “for-profit company with a social mission.” It sees the provision of affordable electricity and energy as a spur for small entrepreneurs to build their businesses, boost educational opportunities through longer study time, and help with connecting families with the outside world.

It uses regular feedback with customers to make sure their service is actually cheaper than other options – a good habit for any business looking to build a lasting customer relationship.

“One of the key deficiencies in the energy supply chain is customer support,” said Yang. “We have seen multiple solar installations given by NGOs to community organizations that are no longer functioning because the user doesn’t have someone reliable to call or hasn’t allotted a budget to maintain the system.

“Customer support is a key component of last mile distribution, and something that EGG-energy is focusing on as an energy services company with a local, physical presence.”

Published: April 2012

Resources

1) ANSOLE (the African Network for Solar Energy) is a research-oriented network of 200 scientists from 22 African and 10 non-African countries. It believes, according to Mammo Muchie, founding editor of the African Journal of Science, Technology, Innovation, and Development, “solar power will become the major renewable energy source on the continent only by organized research, training, design, and engineering.” Website: ansole.org

2) The Kenya-based non-governmental organization (NGO) Access: energy is tackling the problem of 84 per cent of Kenyans – 32 million people – lacking access to electricity at home. It is doing this by teaching people how to make and assemble wind turbines out of scrap metal and car parts and other materials found within communities. Their turbine design is called the Night Heron Turbine. Website: http://access-collective.com/energy/

4) TANESCO: Tanzania Electric Supply Company: Website: http://www.tanesco.co.tz

https://davidsouthconsulting.org/2022/10/24/brazilian-solar-powered-wifi-for-poor-schools/

https://davidsouthconsulting.org/2022/10/06/indian-solar-power-pack-powers-villages/

https://davidsouthconsulting.org/2022/11/20/new-battery-back-up-technology-targeting-developing-countries-and-remote-regions/

https://davidsouthconsulting.org/2022/10/02/powerful-solar-light-spurring-income-making-opportunities/

https://davidsouthconsulting.org/2022/10/24/solar-power-bringing-light-and-opportunity-to-the-poor/

https://davidsouthconsulting.org/2021/03/24/solar-powered-mobile-clinics-to-boost-rural-healthcare-in-africa/

https://davidsouthconsulting.org/2021/03/30/solar-powered-village-kick-starts-development-goals/

https://davidsouthconsulting.org/2022/10/06/solar-sisters-doing-it-for-themselves-tackling-african-light-famine/

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator.  

https://davidsouthconsulting.org/2021/03/05/southern-innovator-issue-4/

Creative Commons License

This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2023

Categories
Archive Development Challenges, South-South Solutions Newsletters

Innovative Ways to Collect Water from Air

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

 World water resources are being depleted quickly as populations grow, urbanize and demand better living standards. Many scientists believe we are reaching peak water – the point at which fresh water is consumed faster than it is replenished.

According to Ensia (ensia.com), a magazine showcasing environmental solutions in action, 70 per cent of the earth’s fresh water reserves are locked up in snow or ice, and are expensive to tap and bring to the world’s water-stressed places. Of the remainder, most is in groundwater, soil moisture, swamps or permafrost, while just 0.3 per cent is easy to access in freshwater lakes and rivers.

By far the biggest user of water in the world – accounting for 69 per cent of the total – is farm irrigation. That’s a serious concern when considering the world will need to grow more food to feed an increasing population. Just 1 per cent of water is used for livestock, while 15 per cent is used for electricity generation and 7 per cent for manufacturing. More water is currently being pumped from underground resources than is being replaced from underground aquifers.

The average person needs to consume 0.6 to 1.3 gallons (2.72 liters to 6 liters) of water per day to survive in a moderate climate. For drinking, cooking, bathing and sanitation, an individual needs 13 gallons (59 liters) a day (Ensia).

In many places, obtaining water requires a long trek to a well or stream. But non-desert climates have water as a resource readily available all around – trapped in the air. The clue to this resource’s existence is in the air’s humidity levels, the most visible sign of which is the dew that is found covering the grass and leaves every morning when people wake up. The trick is to extract that water from the air and create a steady supply of this essential resource.

Italian architect and designer Arturo Vittori (http://www.vittori-lab.com/team/arturo-vittori), a lecturer on aerospace architecture, technology transfer and sustainability, believes he has an answer.

Wired magazine (http://www.wired.com/2014/03/warka-water-africa/) reported that Vittori was inspired by a trip to Ethiopia, where he observed the daily struggle to get water. Access to water in northeastern Ethiopia often requires a long walk, which reduces the amount of time left in the day to do other things. Parents often take along their children, meaning the children cannot go to school. The time consumed by gathering water leaves people poorer and unable to dedicate more of their day to income-earning activities.

And there is no guarantee the water is safe to drink or free of chemical contaminants. This situation left Vittori pondering ways of coming up with an inexpensive solution that would eliminate the daily hassle of finding water and guarantee its quality.

The answer was a WarkaWater Tower (http://www.architectureandvision.com/projects/chronological/84-projects/art/492-073-warkawater-2012?showall=&start=1). The bamboo structure – which looks like an upended, latticework funnel – captures the dew and moisture in the air and collects it in a basket at the bottom.

The water collector is inspired by the Warka tree, or Ficus vasta (http://en.wikipedia.org/wiki/Ficus_vasta). Native to Ethiopia, it is known for providing shade and as a rendezvous point for traditional gatherings.

A WarkaWater Tower stands 8 meters in height and is made from either bamboo or reeds. Inside, a mesh traps humidity from the air and the water drips down into a basket. One tower can gather around 94 liters of water a day. The water is right there in the community and not kilometers away, meaning time and energy saved for income-generating tasks.

A WarkaWater Tower is constructed in sections, which are assembled and then stacked on top of each other. The construction does not need special scaffolding or special machinery. Once the tower is in place, it can also be used as a solar-power generator.

The tower is still a prototype and Vittori plans to build two towers for a launch in 2015.

In Peru, reports the Latin American Herald Tribune (http://www.laht.com/article.asp?ArticleId=700400&CategoryId=14095), another innovative solution to the water crisis has been developed by students at the University of Engineering and Technology (UTEC) (http://www.utec.edu.pe/Utec.aspx). The students have developed a highway advertising billboard that can draw drinking water out of the air. Inspired by a campaign called “Ingenuity in Action”, the students teamed up with a local advertising agency to design the billboard. It is capable of extracting water from the air and processing it through a filtration system as it flows down to a series of taps at the bottom.

The water-making billboard is at the 89.5 kilometer distance marker of the Pan-American Highway and has five electric-powered tanks that can hold a total of 96 liters of drinkable water. It is capable of providing enough water for hundreds of families. A true sign of our times!

Published: July 2014

Resources

1) How to Build a Rainwater Collection System. Website: http://www.wikihow.com/Build-a-Rainwater-Collection-System

2) The geopolitical difficulties of access to water covered in The Devil and the Disappearing Sea: A True Story about the Aral Sea Catastrophe by Robert Ferguson. Website: amazon.com

3) “Earth may have underground ‘ocean’ three times that on surface” from The Guardian. Website: http://www.theguardian.com/science/2014/jun/13/earth-may-have-underground-ocean-three-times-that-on-surface

An article on the impact of the water crisis on food supplies. Website: http://www.theguardian.com/lifeandstyle/2014/jul/09/enjoy-your-coffee-you-may-soon-not-be-able-to-afford-it

5) How to Make Water in the Desert. Website: http://www.wikihow.com/Make-Water-in-the-Desert

The Environmental Public Awareness Handbook: Case Studies and Lessons Learned in Mongolia was funded by the European Union and published by the UNDP Mongolia Communications Office in 1999.


Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator.  

https://davidsouthconsulting.org/2022/11/02/clay-filters-are-simple-solution-for-clean-water/

https://davidsouthconsulting.org/2023/01/16/hip-driven-pump-brings-water-to-parched-fields/

https://davidsouthconsulting.org/2022/11/19/saving-water-to-make-money/

https://davidsouthconsulting.org/2021/03/05/southern-innovator-issue-5/

https://davidsouthconsulting.org/2022/02/10/urban-farmers-gain-from-waste-water/

https://davidsouthconsulting.org/2022/10/17/the-water-free-south-african-bathing-solution/

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This work is licensed under a
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ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2023