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Kenya Overtakes Italy, Joins Top Seven Geothermal Producers

Kenya has raced past Italy to emerge seventh largest geothermal power producer in the world, new global data shows.

Kenya’s geothermal capacity stands at 823 megawatts (MW), having grown by 165MW since last year and moving the East African country above Italy’s 800MW. This is according to Renewable Capacity Statistics 2020 prepared by Abu Dhabi-based International Renewable Energy Agency (IRENA).

Italy is the birthplace of geothermal technology.

In 2010, Italy’s steam power capacity stood at 728MW compared to the current 800MW, meaning the European nation has only managed a 9.8 percent growth over the past decade. On the other hand, Kenya’s stock of geothermal has expanded four times over a similar period from 198 MW in 2010.

Kenya’s deepening of geothermal development has put it on track to joining the elite Gigawatt Club of countries with geothermal production of 1,000 MW (1 GW) and above. Only four nations, including the US, belong to this club. Geothermal is an attractive low-cost renewable energy source with low emissions and serves as stable, reliable base-load electricity.

Last year, Kenya added the third largest geothermal capacity in the world, enabling it to move to top seven global geothermal powerhouses.

 “Geothermal power capacity grew by 682 MW in 2019 (globally), slightly more than in 2018. Again, Turkey led with an expansion of 232 MW, followed by Indonesia (+185 MW) and Kenya (+160 MW),” IRENA said in its update.

Until last year, Kenya was ranked ninth in geothermal production, but steamed ahead to leapfrog Iceland to position eight and has now pulled a similar coup on Italy.

Geothermal now accounts for 30 percent of Kenya’s total installed power capacity of 2,700MW with the other share occupied by hydropower, wind, solar and thermal power.

The US is the world’s top geothermal producer with an installed capacity of 2,555 MW — three times Kenya’s output — though the country’s stock has been declining recently. It’s followed by Indonesia (2,131 MW) in the second place, Philippines (1,928 MW) while Turkey’s 1,515 MW comes in fourth.

New Zealand is fifth with 965MW, while Mexico is sixth with 936MW of steam power. Kenya, having dislodged Italy and Iceland comes in seventh.

Geothermal energy was first discovered and developed in Italy over 100 years ago at the beginning of the last century (20th century). It held the top spot until the second half of the 20th century when other countries took interest in the power source.

Kenya constructed its first geothermal plant in 1981, the Olkaria 1. The East African nation has since built a fleet of other geothermal plants in the Rift Valley steam fields.

Besides Kenya, Ethiopia is the only other African nation that has developed geothermal energy (7 MW).

Presently, 85 percent of Kenya’s geothermal capacity is owned and operated by government-owned power producer KenGen. KenGen’s installed geothermal capacity currently stands at 707MW, with the firm having more projects in the pipeline.

The company recently added Olkaria V geothermal plant with a capacity of 165.4MW to the national grid, and is behind Kenya’s improved fortunes in the IRENA rankings.

American firm Ormat is currently the only independent power producer (IPP) with geothermal plants in Kenya and holds the remaining 15 percent of Kenya’s geothermal power capacity. More exploration works are being undertaken by other IPPs such as Akiira Geothermal and African Geothermal International Ltd (AGIL), while Mauritius-based Quantum and Kenyan firm Sosian Energy are in the development stage.

The country has an untapped potential of 10,000 MW of steam energy in its Rift Valley basin where a series of exploration works are ongoing.

Globally, the total developed geothermal capacity stands at 13,931MW, with Kenya’s 823MW representing a global share of six percent.

Read also: Kenya’s Power Demand Now Drops

Zimbabwe Reopens Produce Markets After Protests By Drought-Hit Farmers

Zimbabwe has reopened fresh produce markets after pressure from farmers who struggled to sell their harvest under restrictions aimed at stemming spread of the novel coronavirus, Zimbabwean officials said.

Markets including prominent Mbare Musika in Harare and Sakubva Musika in Mutare were closed last week when President Emmerson Mnangagwa’s administration put the country on a 21-day lockdown in a bid to curb the spread of the virus.

Zimbabwe has so far recorded just over 10 confirmed cases of the novel coronavirus and three deaths. Its larger neighbour South Africa has seen more than 1,800 confirmed cases and more than 15 deaths.

To deal with the threat, Zimbabwe has moved to halt many forms of transport and close facilities except for those deemed essential, including supermarkets and state-owned public transport. Read more…

Senegal: U.S. Allocates $91.5 Million For Rural Electrification

The Exim Bank of the United States has approved a loan financing guarantee of US$91.5 million to facilitate the export of US engineering and construction services in the rural electrification sector in Senegal. With only a 33% rural electrification rate, this West African country has the ambition to invest approximately $1 billion in the rural electrification process by 2023.

Rural electrification is a major challenge for Senegal. With a 65% electrification rate at the national level, and only 33% in the countryside, the slogan “Senegal for all” is far from reality. The government’s energy ambitions and the support of donors, however, allow Senegalese farmers to keep hope for better electricity coverage.

It is in this context that the Exim Bank of the United States announced, in early April 2020, financial support for Senegal’s rural electrification sector. The U.S. export credit financial institution provided a loan financing guarantee of $91.5 million to facilitate the export of U.S. engineering and construction services in the rural electrification sector.

The financial operation will connect 330,000 people to independent mini-solar grids in more than 415 villages. The work will be led by Weldy Lamont, a US company exporting renewable energy equipment to Africa, which employs 500 people in 14 states in the US and Senegal.

Approximately $1 billion for rural electrification by 2023

The credit guarantee granted to Senegal by the Exim Bank of the United States follows a promise made on December 31, 2019, by the President of the Republic of Senegal. In his end-of-year speech, Macky Sall announced that about 600 billion CFA francs or 1 billion dollars would be invested in the rural electrification process by 2023. Read more…

Healthcare Waste: What To Do With It?

Interview with Keith Alverson, Director of the United Nations Environment Programme (UNEP) International Environmental Technology Centre in Osaka, Japan. The Centre has produced a Compendium of Technologies for Treatment/Destruction of Healthcare Waste,a scientific and practical publication covering all aspects of medical waste—a topic that is highly relevant to the current novel coronavirus COVID-19 pandemic.

Please describe the document and how it can help in this current pandemic?

The compendium is intended to assist national and local governments, health organizations and countries in assessing and selecting appropriate technologies for the destruction of healthcare waste. It can help those with responsibility for planning and managing the significant increase in medical waste as a result of this global pandemic.

What is healthcare waste?

Healthcare waste is all the waste generated by healthcare facilities, medical laboratories and biomedical research facilities, as well as waste from minor or scattered sources. Although hospitals produce the bulk of healthcare waste by volume, they are a small fraction of the total number of sources.

Improper treatment and disposal of healthcare waste poses serious hazards of secondary disease transmission due to exposures to infectious agents among waste pickers, waste workers, health workers, patients, and the community in general where waste is improperly disposed.

Open burning and incineration without adequate pollution control exposes waste workers and the surrounding community to toxic contaminants in air emissions and ash.

How much medical waste does an average hospital produce?

An assessment of waste generation rate data from around the world shows that about 0.5 kg per bed per day is produced in hospitals. However, this figure, and the underlying composition of the waste, varies enormously depending on local context, with higher-income countries generating far higher levels of waste and plastic, for example, often making up more than half of all medical waste. Because of this huge diversity, there is no single best solution to dealing with medical waste.

The compendium provides a robust methodology for analysing local healthcare waste generation, composition and disposal needs and selecting appropriate technologies as part of a local waste management system.

Which kind of medical waste is most risky in terms of spreading infectious diseases?

Healthcare waste can be categorized according to the following general classifications: sharps waste, pathological waste, other infectious wastes, pharmaceutical waste including cytotoxic waste, hazardous chemical waste, radioactive waste, and general (non-risk) waste.

In general, between 75 and 90 per cent of the waste produced by healthcare facilities is non-risk (non-infectious, non-hazardous) general waste, comparable to domestic waste. Infectious waste is waste that is suspected to contain pathogens (disease-causing bacteria, viruses, parasites, or fungi) in sufficient concentration or quantity to cause disease in susceptible hosts. Read more…

Human Impact On Wildlife To Blame For Spread Of Viruses, Says Study

Hunting, farming and the global move of people to cities has led to massive declines in biodiversity and increased the risk of dangerous viruses like Covid-19 spilling over from animals to humans, a major study has concluded.

In a paper that suggests the underlying cause of the present pandemic is likely to be increased human contact with wildlife, scientists from Australia and the US traced which animals were most likely to share pathogens with humans.

Taking 142 viruses known to have been transmitted from animals to humans over many years, they matched them to the IUCN’s red list of threatened species.

Domesticated animals like cattle, sheep, dogs and goats shared the highest number of viruses with humans, with eight times more animal-borne viruses than wild mammal species.

Wild animals that have adapted well to human-dominated environments also share more viruses with people. Rodents, bats and primates – which often live among people, and close to houses and farms – together were implicated as hosts for nearly 75% of all viruses. Bats alone have been linked to diseases like Sars, Nipah, Marburg and Ebola. Read more…

Scientists Create Mutant Enzyme That Recycles Plastic Bottles In Hours

A mutant bacterial enzyme that breaks down plastic bottles for recycling in hours has been created by scientists.

The enzyme, originally discovered in a compost heap of leaves, reduced the bottles to chemical building blocks that were then used to make high-quality new bottles. Existing recycling technologies usually produce plastic only good enough for clothing and carpets.

The company behind the breakthrough, Carbios, said it was aiming for industrial-scale recycling within five years. It has partnered with major companies including Pepsi and L’Oréal to accelerate development. Independent experts called the new enzyme a major advance.

Billions of tonnes of plastic waste have polluted the planet, from the Arctic to the deepest ocean trench, and pose a particular risk to sea life. Campaigners say reducing the use of plastic is key, but the company said the strong, lightweight material was very useful and that true recycling was part of the solution.

The new enzyme was revealed in research published on Wednesday in the journal Nature. The work began with the screening of 100,000 micro-organisms for promising candidates, including the leaf compost bug, which was first discovered in 2012. Read more…

How Wastewater Can Slake Growing Thirst In Cities

Population and economic growth is piling pressure on freshwater resources, with demand rising faster than supply and yet 80 percent of global wastewater still goes to waste. Whether it’s at commercial or household level, not much thought is given to used water – dirty dishwater, flushed toilet water or industrial discharge.

But this shouldn’t be the case; used water should be reused and recycled as an alternative water source amid glaring future shortages. This is according to a new World Bank report dubbed Wastewater: From Waste to Resource.

Presently, 36 percent of the world’s population lives in water-scarce regions. Future forecasts paint an even grimmer picture in the age of climate change with more than half of the global population projected to be at risk of water stress by 2050.

Repurposing wastewater, the World Bank says, could offer countries an escape window out of the scarcity trap. Used water should not be considered a ‘waste’ anymore, but a resource. This is at the core of a circular economy – an economic system aimed at minimising waste and making the most of resources through innovative technologies.

Wastewater treatment offers a double value proposition, the report says. In addition to environmental and health benefits, water treatment can generate economic value through reuse in different sectors. Its by-products, such as nutrients and biogas, can be used for agriculture and energy generation, for instance. More importantly, safely managed water, sanitation and hygiene (WASH) services are essential in preventing disease and protecting human health during infectious disease outbreaks, including the current Covid-19 pandemic.

“Rapid urbanisation, especially in low- and middle-income countries, has created a host of water-related challenges. These include degraded water quality and inadequate water and sanitation infrastructure, particularly in expanding peri-urban and informal settlements. As cities continue to grow rapidly, and climate change alters the availability and distribution of water resources, it will become increasingly difficult and energy intensive to meet the water demands of populations and economies,” the World Bank says in the report aimed at equipping decision-makers with knowledge and tools to develop sustainable water policies.

“In this context, wastewater becomes a valuable resource from which water, energy, and nutrients can be extracted to help meet the population demands for water, energy, and food,” it adds.

The World Bank calls for a paradigm shift from traditional linear approach of water use where freshwater is harvested from surface or groundwater source, treated, used, collected and finally disposed. Such a linear model is no longer sustainable in light of modern challenges, the bank says.

Instead, the global lender says that to be climate-resilient, future cities would have to switch to models that minimise resource consumption and focus on resource recovery under circular economy.

The traditional approach is based on a linear economy with a “make, use, and dispose” model of production. On the other hand, a circular economy approach replaces the end-of-life concept with restoration, shifts toward the use of renewable energy, eliminates the use of toxic chemicals that impair reuse and return to the biosphere, and aims for the elimination of waste through the superior design of materials, products, systems, and business models. It’s based on three main principles – design out waste and pollution, keep products and materials in use, and regenerate natural systems.

The report sheds a light on wastewater management success stories, particularly in the Latin America and Caribbean (LAC) region, which are already reaping benefits.

Here are the examples:

  • By using treated wastewater instead of groundwater, the San Luis Potosi power plant in Mexico cut costs by 33 percent, leading to $18 million in savings over six years for the power utility. For the water utility, the additional revenue from selling treated wastewater helped cover operations and maintenance costs.
  • A wastewater treatment plant in Cusco, Peru, saves $230,000 a year in transporting biosolids (nutrient-rich organic materials resulting from the treatment of domestic sewage in a wastewater treatment facility) and landfill fees due to an agreement with the local compost producer. The compost produced with the plant’s biosolids is then used as part of the water management project to preserve the Piuray Lake.
  • Brazil-based CAESB water and wastewater utility’s use of biosolids for corn production led to higher-than-average grain yields and was 21 percent more efficient than mineral fertilizers.
  • The operator of the La Farfana wastewater treatment plant in Santiago, Chile, after investing $2.7 million to retrofit the plant, was able to sell biogas, accounting for an annual net profit of $1 million for the business.

“Wastewater can be treated to various qualities to satisfy demand from different sectors, including industry and agriculture. It can be used to maintain the environmental flow, or even reused as drinking water. Wastewater treatment is one solution to the water scarcity issue, and also to the problem of water security, freeing water resources for other uses or for preservation,” World Bank says in the report.

“The diversification of water supply sources is critical for enhanced security and resilience, and wastewater should be considered as an additional source when estimating water balances. Meanwhile, the by-products of wastewater treatment can become valuable for agriculture and energy generation, making wastewater treatment plants more environmentally and financially sustainable. Treating wastewater as a valuable resource can thus contribute to a region’s sanitation sector, as well as its major economic sectors,” the global lender adds.

Read also: Inside The Game Plan Of Sustainable Family Companies

Here’s Why Energy Security Is A Vital Tool In Tackling A Pandemic

Reliable, affordable electricity is needed to keep people connected at home and to run life-saving equipment in hospitals

A pandemic puts pressure on every part of a country’s economy and society. For developing countries that were already facing major challenges before COVID-19, this pressure will be particularly painful.

As the virus spreads, especially across Africa and parts of Asia, one of the most used preventative measures is a luxury not all countries can afford. Social distancing and stay-at-home measures being adopted in many countries are predicated on an important assumption: that populations have access to reliable, affordable electricity to stay connected and continue to communicate with public services and one another remotely.

The reality is 840 million people – predominantly in sub-Saharan Africa – are living without access to electricity and hundreds of millions more only have access to very limited or unreliable electricity. Many of these people, largely women, reside either in crowded cities or rural areas. “Sheltering in place” in such areas for long periods of time may not be possible as energy is needed to cook and store food, or to cool homes.

The ability for doctors and first responders to treat infected populations is also based on the assumption that clinics, medical equipment and medicines are fully functioning with access to sufficient, uninterrupted, reliable electricity. In parts of Sub-Saharan Africa, it is estimated that only 28% of health facilities have access to reliable electricity. Read more…

A Theatre Project Explores Collective Solutions To Saving The Ocean

The earth’s oceans are under grave threat. Scientists in many fields have pointed to the large-scale negative shifts brought about by human-made pollutants, mining and overfishing.

How people now choose to behave, make collective decisions and build solidarity around the health of oceans has an impact not just on our own species but on all life on earth.

In the drive to rebuild economies after the COVID-19 pandemic, will nation states and big business return to a myopic view of the oceans as a source of GDP growth and shareholder profit? Or could we expand our imaginations to listen to a multitude of voices that care for the ocean?

A theatre production in South Africa has been trying to find a way. The Lalela uLwandle (Listen to the Sea) research and engagement project, implemented along the KwaZulu-Natal coastline in 2019, offers some useful ideas for such an expansion. Read more…

E-Cigarettes, Plastic Straws Next in South Africa’s Tax Sights

The South African government may start taxing e-cigarettes and plastic straws as it ramps up green and health taxes to boost revenue and change behavior.

In addition to doubling a levy on plastic bags from April, the government will consult on extending this charge to all single-use plastics for retail consumption including straws, utensils and packaging, from 2021, the National Treasury said in the budget review tabled in Cape Town on Wednesday.

The government will start taxing heated tobacco products immediately and intends to introduce a levy on electronic cigarettes next year.

“Globally, policymakers are looking at regulating and taxing these products due to concerns about their health effect,” the Treasury said. Read more…