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Solar Energy is Transforming Africa
Photovoltaics panels, more commonly referred to as solar panels, are often cited as the best way to decarbonize the world’s energy grids and reduce emissions. According to MIT, the price per solar cell has decreased by 99% since 1980. These incredibly low costs have now unlocked the use of solar panels for the world’s poorest continent, Africa, with incredibly positive ramifications for the local environments of its citizens and the international effort to reduce emissions. Beyond emissions, however, cheap solar energy also improves the prospects for poor and rural Africans to access electricity, opening new opportunities to enhance standards of living and reduce poverty rates. With the majority of the world’s poor now located in sub-Saharan Africa, these cheap panels, along with the innovative thinking of African communities across the continent, have created new use cases for solar energy that are increasing water security, improving rural access to electricity and increasing economic resilience for Africa’s developing economies. Here are three ways solar energy is transforming Africa.

3 Ways Solar Energy is Transforming Africa

  1. Kenya’s Solar Desalination Plant: Kenya, a former British colony located in eastern Africa, is home to a population of approximately 50 million people. With an annual population growth rate of 2.2%, Kenya has one of the fastest-growing populations in the world and is set to see a population of 85 million by 2050, according to the World Bank. While a significant amount of Kenya’s population growth will be in urban developments, only 28% of Kenya’s population is urban today, meaning that Kenya’s government will need to find ways to provide water and energy infrastructure for its rural communities for decades to come. One small Kenyan fishing village known as Kiunga, home to about 3,500 individuals, has found a solution. Partnering with an American NGO known as GivePower, this village uses solar panels to desalinate ocean water, with the capacity to deliver water to 35,000 residents, 10 times the village’s current population. Today, over 300 million sub-Saharan Africans struggle with water insecurity, often leading to conflict and instability that causes poverty, according to global NGO The Water Project. Developments that can reduce such insecurities can go a long way in improving the future for Africa’s poor. While much more progress needs to occur on this front, this village of Kiunga is providing a template for villages across Africa to harness the power of the sun for water security.
  2. Tanzania’s Rural Mini-Grids: Tanzania, a neighbor of Kenya and a former British and German colony, is home to about 58 million people. Tanzania is East Africa’s largest nation and is home to its largest population and its lowest population density. With its urban population constituting only 35.2% of the country, Tanzania faces the challenge of providing electricity to rural communities far from its city centers. Solar power is uniquely capable of delivering power to these rural communities, and Tanzania has embraced new economic models called “mini-grids” in order to deliver this power. While traditional fossil fuel power plants rely on extensive supply chains and infrastructure in order to deliver electricity, in part due to the weight of the fuels, solar panels generate power on-site, directly from the sun. These “mini-grids” allow small Tanzanian villages to afford electricity for the first time, creating opportunities for rural education and improving security, ultimately contributing to the reduction of rural poverty in Tanzania. Although the current situation is poor, with more than 70% of Tanzanians lacking access to electricity, by 2040, 140 million Africans – including many in Tanzania – will get electricity from these mini-grids, according to the World Resources Institute.
  3. Morocco’s Mega Solar Plant: The North African nation of Morocco is becoming an increasingly important economic power in Africa, with a growth rate of nearly 4.1%. Despite this progress, however, Morocco’s rural poverty rate remains high at 19%. Though one cannot fault Morocco for prioritizing its economy over its environment, given its current poverty rate, Morocco has committed to ramping up its solar energy production, seeking a 50% renewable energy capacity by 2030. The benefits of this development, however, are more than environmental, as Morocco is now a net energy exporter to Europe, decreasing its domestic electricity costs and enhancing its economic resilience, all while improving its economic and political relationships with Europe. Thus, Morocco has used solar energy to not only maintain its commitments to emissions reductions but also as a tool to diversify its economy, allowing the nation to not only lift its citizens from poverty but to sustain its citizen’s incomes in good times and bad.

Poverty remains a significant problem in Africa, with more than half of the world’s deeply impoverished peoples living in sub-Saharan Africa. However, through remarkably low costs and a variety of unique use cases across Africa, solar panels are now increasingly capable of delivering energy, water security and economic growth. From LED-powered lights in rural African schools to increasingly reliable electricity for African small businesses, solar energy is transforming Africa by contributing to its economic rise and modernizing its rural life. And, with solar-powered desalination moving from fiction to reality, water security is increasingly possible across the continent, leading to greater community stability and resilience. All of these factors play an essential role in decreasing poverty rates and improving the quality of life on Earth’s poorest continent. Sunlight, it seems, will brighten Africa’s nights in the future.

– Saarthak Madan
Photo: UN Multimedia

saltwater into clean drinking waterAccess to clean drinking water is a major issue that continues to affect individuals around the world. Further, an estimated 35% of the entire world population lacks access to “improved sanitation,” for which, access to water (generally speaking) is imperative. The CDC estimates that more than 700 million people live without direct access to an “improved water source,” which includes drinking water, proper household plumbing and wells. As of 2018, new solar-powered technology can now supply individuals with direct access to drinkable water by transforming saltwater into clean drinking water. Innovative technology, it seems, may play a pivotal role in helping to solve yet another global challenge.

GivePower & Solar-Powered Technology

GivePower is an innovative nonprofit behind solar, saltwater farms. Comprised of 20-foot-tall containers and accompanied by solar-powered panels and water pumps, these farms are designed to supply deficient countries with safe, drinkable water. The containers hold 75,000 liters of saltwater, every day. Through clean solar energy, this saltwater is converted into safe drinking water and delivered to surrounding villages. Such technology is relatively new, as saltwater is difficult to convert into freshwater. This is due to its makeup and strong chemical bonds. Therefore, saltwater’s conversion into clean water takes a large amount of energy and money to fund. GivePower, however, can cut the costs by using solar energy to powers its saltwater farms.

In 2018, GivePower built its first saltwater farm in Kiunga, Kenya. An extreme drought had caused Kiunga to experience a major shortage of potable water for cleaning, drinking and cooking. At this time, the city’s only source of water came from saltwater from the Indian Ocean. Individuals living in Kiunga would often contract harmful diseases due to this lack of clean water. GivePower acknowledged this issue and intervened by using its technology to convert the abundance of saltwater into safe, usable water. Not only does the saltwater filtration technology provide more water than typical wells — but it also has a lower impact on the environment through the use of renewable, solar energy.

A Global Impact

This technology has helped to address the water crisis in other countries as well. In many developing countries, it is common to have an abundance of saltwater and a lack of clean water. Due to its high sodium content, individuals consuming large amounts of this saltwater can become very sick. Waterborne diseases such as Vibrio and E. coli can contaminate saltwater, causing severe symptoms and in extreme cases, death. By turning contaminated saltwater into clean drinking water, many communities cannot only increase the availability of clean water but decrease the prevalence of waterborne diseases as well.

Through the innovative technology of GivePower, over 19,000 gallons of safe drinking water has been provided to 25,000 individuals per day within the Kiunga community. Although the company started in Kenya, GivePower has already extended to communities around the world by supplying over 2,000 solar-powered systems to schools, villages and facilities in need of freshwater.

The Path Ahead

As GivePower and other organizations continue to develop technology to turn saltwater into clean drinking water — thousands of individuals around the world can obtain direct access to safe water.

– Olivia Eaker
Photo: Google Images

diminish global poverty
Self-driving cars and trips to Mars might be the first things that come to mind when thinking of Elon Musk. His massive-scale innovations will help humanity as a whole, but Musk’s initiatives are also helping to diminish global poverty. Since he was in college, Musk has sought to help humanity through space exploration, global internet and energy efficiency. The mission of Tesla, which Musk founded in 2003, is to accelerate the world of sustainable energy for the good of humanity and the planet. This mission will also have numerous benefits to the poor and overlooked populations of the world.

Tesla Powered Water Plants

In the coastal village of Kiunga, Kenya, water is available but contaminated. With most water sourced from saltwater wells, communities must bathe and cook with saltwater. Washing clothes and bodies with saltwater leads to painful sores that are hard to heal. On the other hand, drinking and cooking with saltwater leads to health problems like chronic diarrhea or kidney failure. These complications inhibit a healthy and productive society.

Tesla and GivePower offered a solution to Kiunga’s lack of potable water: a desalination plant that solar power and a battery reserve power. GivePower is a nonprofit organization aiming to provide resources to developing countries; it was acquired by Tesla Motors in 2016. A solar water farm that Tesla Powerwalls facilitated stores energy from solar panels to fuel the Kiunga facility at night and when there is a lack of sunshine. This plant produces about 70,000 liters of clean water every 24 hours, giving clean water to 35,000 people daily. This project has improved Kenyans’ lives, and GivePower aims to reach Colombia and Haiti next.

Tesla Powered Micro-grids

In many regions, people take electricity for granted. In Africa, hundreds of millions live without it. According to the International Energy Agency, 55% of the population in sub-Saharan Africa lack basic electricity access. Energy is essential to power schools, homes and healthcare facilities. A lack of modern energy in developing countries hinders the ability to study, work and modernize. For instance, in Zimbabwe, widespread violence and poverty contribute to a declining economy. One beacon of hope is the money trade, which takes place almost completely electronically. An innovative mobile payment system called Ecocash facilitates financial transactions for customers with mobile phones. To be effective, this process relies on consistent power infrastructure.

One incident in July 2019 exposed the vulnerability of Zimbabwe and its markets. A power outage occurred, and Zimbabwe’s Econet generators failed to power up, resulting in a mobile money blackout. This consequently had detrimental effects on the country’s economy, as the majority of financial systems halted. Over 5 million transactions occur daily through mobile money markets, adding up to around $200 million. Interruptions to power cause Zimbabweans to lose millions of dollars.

Microgrids are the answer. Generated by Powerwalls from Tesla, these self-contained systems of solar panels and batteries can provide power across the globe. Above all, no community is too remote to benefit. Tesla’s Powerwalls will alleviate uncertainties that unfavorable weather, unstable prices and fuel shortages cause. Although they require an investment of $6,500, solar-powered batteries replace archaic diesel-powered generators to ensure stability and diminish global poverty.

StarLink: High-Speed Internet Access Across the World

A lack of internet and mobile applications make life harder in developing countries. Without educational, communication and health tools, the cycle of poverty cannot be broken. According to the Federal Ministry for Economic Cooperation and Development, an estimated 750 million people over the age of 15 cannot read or write. Access to educational tools and resources through the global internet can reduce drop-out rates and improve education levels.

Elon Musk’s StarLink internet would deliver high-quality broadband all over the globe, reaching communities that historically lack an internet connection. The internet can bring education, telemedicine, communication and truth to people oppressed in developing countries. It gives isolated and overlooked communities a chance to become more secure. Using Starlink is straightforward: Plug in the device and point it toward the sky. The costs and benefits of Starlink can be shared across multiple families. The Starlink project strives to place a total of 42,000 satellites in space by the end of 2021, enabling internet access and helping to diminish global poverty.

A Sustainable Future for All

Musk’s focus on energy technologies benefits everyone, including the world’s poor. One obstacle to ending global poverty, especially in extreme cases, is that the poorest populations are usually the most remotely located. However, with Musk’s innovations, even remote rural communities can advance with modern technology.

Tara Hudson
Photo: Pixabay

Drinkable Ocean Water
Experts expect that 50 percent of the world population will live in areas with water shortages by 2025. For cities in South Africa, India and China, this crisis is already becoming a reality. So what solutions are there for the shortage of this valuable resource? Water filtration systems and desalination are a few, although many water treatment solutions have not been environmentally friendly and desalination has proven to be costly. However, a lot has changed in water treatment over the years. Here are a few improvements and advancements that could prove promising for the future of potable water, including drinkable ocean water.

Water Softeners and Filtration Systems

Water softeners and filtration systems have gained a negative reputation due to the salt they use and the wastewater they produce that ends up in aquatic environments. However, advancements in these areas have led to softeners that use salt more efficiently and newer equipment reducing water usage and conserving that precious resource. New technology has decreased the usage of both water and salt by 50 percent.

Manufacturers have established ways to achieve high efficiencies by focusing on providing products that are better-performing and able to dictate the amount of water they use during maintenance functions, as well as making larger filtration cartridges that extend the replacement cycle times. Manufacturers have even designed new technology to monitor water usage in the home and adjust to match the household’s habits.

A top priority of the water treatment industry is to develop ways to address contamination while maintaining sustainability. The improvements that manufacturers are making to reverse osmosis (R.O.) systems reflect that.

R.O. systems can result in a reduction of the purchase of bottled water due to how greatly they diminish contaminants. However, the systems still have room for improvement due to the amount of wastewater they produce. The technology to reduce wastewater exists internationally and now the U.S. is looking to make the same progress.

Desalination

If people could drink from the ocean, there would be more than enough water for everyone. However, it would be necessary to remove the salt first.

There are about 2.2 billion people who do not have access to clean drinking water. For thousands of years, turning seawater into drinking water has been an option for this ongoing problem, although the process tends to be expensive and inefficient because it requires a lot of energy.

Kamalesh Sirkar, a chemical engineering professor at the New Jersey Institute of Technology, has a new process that promises to make a difference. His direct-contact membrane distillation (DCMD) system heats seawater across a plastic membrane containing tubes filled with cold distilled water. The tubes have pores so that the water vapor that collects on them can penetrate into them, but not salt. The vapor can then condense back into liquid water.

This efficient system can produce 21 gallons of drinking water per 26 gallons of seawater, which is twice as much as most existing desalination technology. The downside of DCMD is the requirement of a heat source to prevent the water temperature on either side of the membrane from equalizing, although there is the potential of recycling waste heat to run the system.

A team of international scientists has achieved a similar accomplishment by using the sun to produce high-quality potable water. This process can meet the needs of an entire family at a cost of about $100 without using electricity. This team, consisting of scientists from MIT in the U.S. and Shanghai Jiao Tong University in China, believes that its system can provide water to islands and coastal areas that do not have reliable electricity but have access to seawater. With this system, the team produced 1.5 gallons of fresh drinking water every hour for every square meter of the solar collecting area.

GivePower

Recently in Kenya, a nonprofit called GivePower has been able to successfully use solar power to create drinkable ocean water. In July 2018, a new desalination system began operations on the coast of Kiunga that can create 19,800 gallons of drinking water every day. That is enough for 25,000 people. This nonprofit’s main focus has been to provide solar-energy systems to developing countries. The organization has installed solar grids in 2,650 locations across 17 countries in places like schools, medical clinics and villages.

The success of this system is in finding a way to pull water out of the ocean in a scalable, sustainable way. The president of GivePower, Hayes Barnard, hopes to open similar facilities around the world, providing fresh water to people who struggle to get it on a daily basis.

At the rate that the population has been increasing, a freshwater crisis appears imminent. However, with the work that experts are putting into finding a solution, the possibilities for the future look bright. With environmentally friendly filtration systems and the successful production of drinkable ocean water, the population will all be able to drink deeply since there will be enough to go around.

Janice Athill
Photo: Flickr