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Brazilian Solar-powered WiFi for Poor Schools

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

There is a pressing need to spread access to the internet to the world’s poor — but also many obstacles. Often it is something as basic as a lack of electricity that brings progress to a halt. But a Brazilian innovator has come up with a solar power supply that is helping to bring internet access to schools serving the poor.

Many initiatives are trying to bring inexpensive access to the internet to rural and remote regions around the world. Schools in poor areas are receiving laptop computers through schemes like the One Laptop Per Child project, but it is common that schools do not have a steady electricity supply to power the computers or the internet connection. One of the most successful ways of rapidly expanding access is to offer wireless (WiFi) internet so that anyone can use the Web, no matter what device they have, whether a laptop computer, a personal computer or a mobile phone. The signals use radio waves, and are an excellent solution for multiple users.

Brazilian professor Marcelo Zuffo, Interactive Electronics Coordinator at the University of Sao Paulo, has invented a cheap solar-powered WiFi access point for the poor. Designed to be used by schools without a steady source of electricity, it doesn’t need outside electricity supply, and is not difficult to assemble. It is being tested on lampposts around the Sao Paolo campus.

The device uses something called a ‘mesh’ strategy. By acting as a group, several units are able to expand the area covered by WiFi in a honeycomb pattern. The signal is relayed back and forth between the units, significantly increasing the area covered that can access the Web. “In such a strategy,” said Zuffo,”you can cover large rural areas, parks, low income neighbourhoods, by just dropping our equipment in roofs, trees or on to existing lamp posts.”

Zuffo was inspired to develop the solar-powered WiFi boxes after the university tried to bring laptop computers to a Sao Paulo school, and found they didn’t have a steady electricity supply.

“We came up with the idea of taking energy that is most plentiful and cheap, i.e. the sun,” he told the BBC. “We have a solar panel, a cheap motorcycle battery and a circuit that is responsible for energy management. We can have up to two days of full internet coverage and our goal is to increase that to 10 days – so that in the rainy season and the winter, you can have the internet for free.

“The natural plan is to miniaturize the system so that we can save on costs. So by the end you can imagine these WiFi solar mesh devices being the size of a cellphone or playing card.”

The low cost, solar-powered access point is ready as soon as it is unpacked and needs neither maintenance nor a power socket to get going.

“It is a completely autonomous WiFi hotspot, it doesn’t need any internet or energy connection,” said Zuffo.

“Everything comes from the sun and we have plenty of that in Brazil,” he said.

The volunteer organization Green WiFi initiative is also developing solar powered technologies to bring ubiquitous internet access to the world’s poor.

Zufo’s message for other scientists and inventors is this: “Innovation, invention is all about transforming people’s lives. We need methods and equipment which are cheap enough so that they are accessible to virtually every one, suitable for small scale applications, and compatible with man’s need for creativity.”

The issue of inequality in access to the internet has stark consequences for global economic development. Already, according to the World Information Society Report 2007, “Europe has achieved the largest overall gain in digital opportunity over the last two years, followed by the Americas… Asia and Africa have witnessed smaller gains in digital opportunity. The implications for the digital divide are clear: digital opportunity is becoming more sharply divided by region, not less.”

Published: November 2008

Resources

  • Wireless Networking in the Developing World: A Practical Guide to Planning and Building Low-cost Telecommunications Infrastructure. Website:
  • World Information Society Report 2007: A progress report on pledges to bring digital opportunity to all. Website:
  • The Wireless Geographic Logging Engine: This is a website with maps tracking the presence of WiFi access around the globe. So far it maps over 10 million separate WiFi networks. Entrepreneurs only have to log into the website to start searching for wireless networks near them.
  • iTrike: The world’s first solar powered wireless internet rickshaw.
  • The KyaTera lab where the technology was developed. Website: http://kyatera.incubadora.fapesp.br/portal/research/laboratories/interactive-electronic-media

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. 

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

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Solar Power Bringing Light and Opportunity to the Poor

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Meeting the South’s energy needs will be crucial to achieving radical improvements in quality of life and human development. It is estimated that 1.7 billion people around the world lack electricity (World Bank), of whom more than 500 million live in sub-Saharan Africa.

Africa’s greater global engagement and economic growth in the past few years has started to draw attention back to the continent’s dearth of reliable power sources and inadequate power infrastructure. With demand for electricity growing fast, it is people running small enterprises and organizations – especially in rural areas – who often get cut out.

Being able to see at night unleashes a vast range of possibilities, but for the very poor, lighting is often the most expensive household expense, soaking up 10 to 15 percent of income.

There’s a direct link between lighting and economic development. Each 1 per cent increase in available power will increase GDP by an estimated 2 to 3 per cent.

A reliable power supply helps people to work longer, important for small businesses, and this increases the amount of wealth that can be created. Lit streets are safer at night, and lure people outside to do business and seek entertainment. It makes it easier for students to study into the night, and in consequence improve their grades.

To take up this challenge, entrepreneurs are using different approaches across the South, to make solar power affordable and able to reach millions of poor people.

Marrying new lighting technology such as compact fluorescent light bulbs (CFLs) and light emitting diodes (LEDs) with solar power generation, opens up the possibility to bring clean, portable, durable, low cost, high quality lighting to Africa’s poor. These new lighting systems also come with huge health and safety benefits, compared to gas alternatives.

In Kenya, more than 80 percent of people lack access to the national grid and depend primarily on fossil fuels for their lighting needs, leading to respiratory diseases and environmental hazards associated with indoor air pollution.

Kenyan solar entrepreneur Charles Rioba of Kodesha Mwangaza – Rent a Light is impressed by the interest in solar power solutions. An expert in renewable technologies with 15 years’ experience teaching in universities, he “realized that to reach the lower end of the market, one had to design an affordable solution.”

“The biggest challenges faced are still affordability, and very little disposable income from the potential end users,” he said. “We are currently discussing with a number of micro institutions who have expressed interest on coming on board on rolling out the project.”

Rioba’s business provides rental solar-charged Powerpacks designed to make electricity affordable for the majority of urban poor, rural households and slum dwellers. The rental system allows the consumer to rent a fully charged Powerpack from designated distributors in the neighbourhood, without having to invest in an off-grid power source, such as a solar panel. The project will set up 100 distribution agents and 10 service centers for the Powerpacks to reach approximately 8,000 households within 18 months. In addition the Powerpack will be used for mobile charging and powering radios, and hopes to create a new market concept for portable electrical energy distribution among the poor in Kenya.

“My model targets to reach the lower end of the market,” Rioba said. “We are doing this by using existing businesses and groupings without creating new ones. We are also sourcing directly from the suppliers and we are working our project on numbers. In this way the margins are very low but aimed at achieving high usage hence return on investment.”

Rioba has just been awarded funding by the World Bank’s Lighting Africa initiative, which aims to provide up to 250 million people in sub-Saharan Africa with access to non-fossil fuel based, low cost, safe, and reliable lighting products and associated basic energy services by the year 2030. It uses equipment that can weather long-term use in remote and difficult areas, trains people to service the equipment, and comes up with commercially viable business models to make all of this affordable to the rural poor.

Rioba says that “for solar to be more attractive in Africa, there are a number of challenges. On the technology side, to make products which are both durable and affordable to the masses. Such new products such as LED lighting may ultimately reduce the size of the solar system and hence the cost.”

In Laos, the rental mode is also proving effective. Only 48 percent of the country’s 5.7 million people have access to electricity, and most turn to firewood and kerosene for light and energy. Over 74 percent of people live on less than US $2 a day and could not afford to buy a solar-power system outright.

The company Sunlabob rents solar-powered lanterns for prices beginning at 35,000 kip (US $3.80) per month, lower than the 36,000 to 60,000 kip (US $4.00 to US $6.60) per months households typically pay for kerosene fuel. After 10 hours’ use, the lanterns are recharged for a small fee from the village’s central solar-power collection facility. All fees go towards maintaining the central solar recharging station. The equipment is rented to a village-appointed Village Energy Committee, which sub-leases it to households at prices it sets. Rent covers all costs, including replacements and operational servicing costs. In the event of breakdowns, rent payments are suspended until repairs are made.

Sunlabob has installed over 5,600 solar power systems since 2000 in over 450 villages and is also working in Cambodia and Indonesia.

“Sunlabob really works well with local people,” says Bouathep Malaykham, head of the Lao Government Rural Electrification Program. “Because they are a private company they can make things happen quickly.”

In Bangladesh, more than 230,000 households are now using solar power systems thanks to the government’s Infrastructure Development Company Ltd. (IDCOL), giving rise to opportunities for a whole new generation of entrepreneurs to make use of this new power supply for the poor. IDCOL is run by the Ministry of Finance, and is on course to install 1 million Solar Household Systems (SHS) using solar panels by 2012. The Bangladeshi government is hoping to bring electricity to all its citizens by 2020 – meaning this is now a prime time for entrepreneurs specializing in providing energy efficient products to the poor.

The Executive Director of IDCOL, Ehsanl Haque, told a recent press conference: “SHS system, containing photo voltaic panels, battery, charge controller, solar lamp and switch, is a convenient mode for supply of power for small electrical loads such as lights, radio, cassette players and black and white TV.”

It doesn’t provide electricity 24 hours a day, but Haque says even with a few hours of electricity available each day, the rural economy is being transformed. “Now they are using SHS for income-generating activities and working hours have been increased for small businessmen, weavers, tailors, hairdressers, and makers of handicraft items.”

Among the many benefits of the electricity has been the ability to listen to radio and watch TV: an activity women reported made them feel safer at night.

Published: September 2008

Resources

  • Lighting Africa: this website run by the World Bank is a virtual business community and has forums, market intelligence, access to grants, network and partnership opportunities.
    Website: http://lightingafrica.org/index.cfm?Page=Home
  • D.light Design is dedicated to bringing modern lighting and power to over 1.6 billion people globally currently living without electricity. They aim to be the number one player in off-grid lighting and power solutions worldwide.
    Website: http://www.dlightdesign.com/
  • Solar Power Answers is a one-stop-shop for everything to do with solar power. It has a design manual and guides to the complex world of solar power equipment.
    Website: http://www.solar-power-answers.co.uk/index.php

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. 

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

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Indian Solar Power Pack Powers Villages

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Developments in India are showing the way forward for low-cost solar power for the poor. The Duron Solar Home Power System (http://www.duronenergy.com/product_info/) is now enabling the rural poor to generate and store solar electricity. It is powerful enough to charge gadgets and appliances and run LED lights. It allows people to do their household chores into the dark hours and to study or earn extra income.

As the company says, it “allows ample light for cooking, for children to study at night, and for shop owners to stay open later to earn more money.”

The system removes the need for polluting and dangerous kerosene lamps, which are used by an estimated one million families for lighting in India.

Kerosene lamps are a major contributor to indoor air pollution, which itself claims the lives of 1.5 million people each year. Kerosene lamps have also caused countless deaths by suffocation, burns and fatal fires.

The United Nations Environment Program says kerosene fumes are responsible for around 64 percent of deaths for children under the age of five in developing countries.

More than 1.7 billion people around the world have no domestic electricity supply, of whom more than 500 million live in sub-Saharan Africa (World Bank). Some 400 million people in India do not have access to electricity, according to the World Bank, and 600,000 villages lack an electrical supply. Prime Minister Manmohan Singh has pledged “power for all” by 2012. Without electricity, many development goals remain dreams that will never be achieved.

Being able to see at night unleashes a vast range of possibilities, but for the very poor lighting is often the most expensive household expense, soaking up 10 to 15 percent of income.

According to Greenpeace (http://www.greenpeace.org/international/), India could generate 10 percent of its electricity from solar power by 2030.

The Duron package comes with a five watt solar panel, a cell phone charger connection, three LED (http://en.wikipedia.org/wiki/LED_lamp) lights, and an AC grid charger. After a day of charging, the Duron can power three hours of bright lighting or 10 hours of dim lighting.

The Duron system sells for about 5,999 rupees, or around US $130, and the typical user to date has been small businesses and schools.

Duron is selling several thousand units a month and the company is currently scaling up its sales efforts.

Duron’s approach is to provide a market solution to the huge problem of providing electricity to India’s rural poor.

The company was launched in 2008 with the goal of providing electricity to those without around the world. It was developed out of the Idea Lab (http://www.idealab.com/), a Pasadena, Californian incubator of technology companies.

Extensive field research was conducted across India to determine what was the best solution and what were the needs of rural dwellers. Duron moved its headquarters to Bangalore, India in 2009 to be closer to its customers and expand sales. The company operates in the Indian states of Uttar Pradesh and Karnataka.

By August 2009, more than 2,100 people had light because of the Duron system. The company calculates this translated into 172,500 hours of light.

One customer, Anil Singh, lives with his family in the unelectrified village of Narainpur. His family used kerosene lamps and was paying US $4 a day for unreliable lighting. But after seeing his neighbour, Santosh Singh, with bright, powerful lights at his home, he was curious as to why. When he found out about Duron’s system, he installed a system to light his front porch and two rooms in his house. His family now enjoys two-and-half hours of reliable light in the evening to do things.

“The Duron has made my life so much easier,” said Anil. “It’s a much cheaper (lighting) option compared to kerosene lamps, and I now have a reliable source of power on a daily basis,” he told the company’s website.

Another innovative start-up with offices in India and Africa, is the d.light company, which also has a new, highly-efficient solar-powered product available. The Kiran LED lamp (http://www.dlightdesign.com/products_kiran_global.php) stays lit for eight hours on a full battery and is four times brighter than a kerosene lamp. It illuminates 360 degrees and produces an even, bright white light.

Published: February 2010

Resources

1) Lighting Africa: this website run by the World Bank is a virtual business community and has forums, market intelligence, access to grants, network and partnership opportunities. Website: http://lightingafrica.org/index.cfm?Page=Home

2) D.light Design is dedicated to bringing modern lighting and power to more than 1.6 billion people globally currently living without electricity. They aim to be the number one player in off-grid lighting and power solutions worldwide. Website: http://www.dlightdesign.com/

3) Solar Power Answers is a one-stop-shop for everything to do with solar power. It has a design manual and guides to the complex world of solar power equipment. Website: http://www.solar-power-answers.co.uk/index.php

4) Sun King solar lantern: The lantern provides 16 hours of light for a day’s charge. Website: http://www.greenlightplanet.com/ourusers.html

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.  

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

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Archive

Indian Solar Economy Brings New Vocation for Women

By David South, Development Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

India has started to make significant advances in developing solar power technologies for the poor. There are now whole villages using solar energy and improving their standard of living. Various companies and projects are selling inexpensive solar appliances – from cooking stoves to lanterns and power generators – across the country. This new solar power ‘grid’ is also bringing further economic opportunities: jobs for people to repair and maintain the new equipment.

An interesting initiative is turning the need to repair and maintain solar-powered equipment into a job opportunity for poor women.

More than 1.7 billion people around the world have no domestic electricity supply, of whom more than 500 million live in sub-Saharan Africa, and 400 million in India (World Bank). Some 600,000 Indian villages lack an electrical supply. India’s Prime Minister Manmohan Singh has pledged “power for all” by 2012. An ambitious goal, and one that acknowledges that without electricity, many development goals remain dreams that will never be achieved.

Being able to see at night, for example, unleashes a vast range of possibilities – such as being able to work or study later – but for the very poor, lighting is often the most expensive household expense, soaking up 10 to 15 percent of income.

The power of the sun can help transform this situation. According to Greenpeace (http://www.greenpeace.org/international), India could generate 10 percent of its electricity from solar power by 2030.

In the Indian State of Rajasthan, more than 30,000 homes in 800 villages have turned to solar power for lighting and cooking needs. It is this increasing solar power grid that the Barefoot College (http://www.barefootcollege.org) based in Tilonia – where it was founded over 30 years ago – has turned to as a new economic opportunity. The College is training women to be solar engineers, developing both useful skills and a new income source. So far, Barefoot College itself has solar electrified some 350 villages across India and dozens more in sub-Saharan Africa and even war-torn Afghanistan.

The College prides itself on stripping out academic jargon while inspiring confidence in students’ innate talents and skills so they can take on new vocations.

The solar engineers – many of whom are illiterate – are taught by their peers. Given a box of tools and hardware, the students undertake practical projects to learn-by-doing how the solar devices work and can be repaired. They are introduced to technical terms and concepts and learn how to wire circuits and do daily repairs.

“It is only, we have found, an illiterate woman who is a teacher who can actually train an illiterate women who is a trainer,” the college’s founder, Bunker Roy, told the BBC. “They have the patience, tolerance and improvisation.”

Roy says the training teaches more knowledge of the technical aspects of solar power than a typical student would glean from an undergraduate university degree.

The Barefoot College takes its inspiration from former Indian leader Mahatma Ghandi (http://en.wikipedia.org/wiki/Mohandas_Karamchand_Gandhi), who felt the wisdom, knowledge and skills already existing in rural villages should be the basis for any development. He also believed deploying sophisticated technology in poor communities should be done on their terms to avoid exploitation.

The College is a passionate believer in the inherent skills and abilities of the poor to improve their conditions. It eschews formal qualifications, believing these can be as much a hindrance as a help, trapping people in rigid methodologies.

The Barefoot College has been working on solar electrification in poor and rural villages since 1989. It has used similar techniques to train teachers and teach medical skills.

The course has successfully attracted sponsored students from as far away as Africa. Sarka Mussara, a 56-year-old widowed grandmother from the West African nation of Mauritania, had never attended school or even left her village before coming to India on a UN sponsorship.

“We started little by little learning the solar energy system,” she told PBS. “Day by day and little by little we were able to put things together.”

The solar engineers become highly skilled and can even fabricate complex components like a charge controller (http://en.wikipedia.org/wiki/Charge_controller) when they are back in the village.

One of the additional benefits of training skilled solar engineers is the more confident role these women play in their communities when they return. They often take the lead on other projects in the village.

The College also picks the tough cases: only villages that are inaccessible, remote or non-electrified get help.

Its approach is to have a meeting to introduce the benefits of solar lighting to the community. If the community wants it, then a village committee is formed. Any household that wants solar power has to pay a small fee, no matter how poor. This is to ensure they feel a sense of ownership of the new technology.

Some members of the community are then selected to be trained as “Barefoot Solar Engineers,” or BSEs. They will install, repair and maintain the solar lighting units for at least five years. A workshop is set up to carry out repairs fully equipped with tools and replacement parts. The solar engineers attend a six-month course at the College, leading to work for at least five years.

The Barefoot College encourages middle-aged women and widows and single mothers to become engineers. Experience has shown them to be the most reliable and less prone to moving to the city after training.

Published: May 2010

Resources

1) D.light Design is dedicated to bringing modern lighting and power to more than 1.6 billion people globally currently living without electricity. They aim to be the number one player in off-grid lighting and power solutions worldwide. Website: http://www.dlightdesign.com

2) Solar Power Answers is a one-stop-shop for everything to do with solar power. It has a design manual and guides to the complex world of solar power equipment. Website: http://www.solar-power-answers.co.uk/index.php

3) Sun King solar lantern: The lantern provides 16 hours of light for a day’s charge. Website: http://www.greenlightplanet.com/ourusers.html

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.  

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