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Support for the Implementation of Innovative Solutions for a Smooth Green Transition

Photo: UNDP
Photo: courtesy of Žarko Petrović

The United Nations Development Programme (UNDP) has a unique financing programme designed by the organization’s key development team. The financing programme is related to Public Calls in the form of challenges for innovation under the auspices of their Green Finance Platform in Serbia, which aim is to support those organizations/ individuals who have innovative solutions for climate change, environmental protection, and green transition of both the economy and society and who need technical and financial support to implement them. From 2017 to January 2024, they supported 103 green initiatives with a total of 6 million dollars in co-financing and attracted $55 million for the implementation of the said initiatives. Co-financing was provided by donors whose support ensured the implementation of green transformation projects, including the European Union, the governments of Sweden, Switzerland, and Japan, as well as the Global Environment Facility (GEF).

In an interview for our magazine, Žarko Petrović, leader of the vital development team of UNDP Serbia, says that the initiatives implemented thanks to the programme contribute to mitigating climate change, decarbonizing the economy and increasing energy production from renewable sources, thus accelerating the transition to a circular economy, reducing waste, improving air quality and biodiversity, establishing sustainable food systems, as well as increasing energy efficiency and ensuring the fairness of the energy transition process in Serbia.

“Initiatives are implemented throughout the country while ensuring that the green transition is taking place evenly. Many of these initiatives have great potential to be further expanded and applied in other places,” says Mr Petrović.

According to him, several co-financed projects have exceeded the originally planned frameworks thanks to the support of UNDP experts, opportunities for networking, and public promotion. One project managed was granted 9 million euros worth of bank loans to advance a new approach to producing electricity from biomass.

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Application process

All companies from the private and public sectors, research institutions, civil society organizations, local governments, agricultural holdings and cooperatives can participate in public calls for innovation.

“After evaluating the received applications, the creators of the selected solutions undergo training and receive mentoring support to turn ideas into tangible business plans and feasible green investments. Applicants who complete this process receive co-financing to implement their innovative ideas,” explains Mr Petrović.

Supported investments are expected to contribute to the economy’s green transformation and increase the quality of the environment and life in Serbia. At the same time, they must contribute to a just transition, reducing energy poverty and creating green jobs.

Photo: UNDP

The Programme’s unique points

Our interlocutor adds that the analysis of such an approach to green financing, which was carried out by an independent consultant, showed that the Programme has several unique points that give it a comparative advantage over other similar green financing support programmes in Serbia. The Programme enables innovative projects to be launched at an early development stage, which gives them a chance to attract other investors. This is one of the very few programmes that simultaneously focus on green initiatives and innovation and is one of the few that specifically targets green projects. Last but not least, it is the only programme open to a wide range of participants, including startups, small and medium-sized enterprises (SMEs), large corporations, and companies from both the private and public sectors.

“The Programme ensures that its participants work with mentors in practice and provides concrete guidelines for acquiring the know-how and skills needed to carry out sustainable and financially profitable ventures. Mentors also help project teams interpret laws and obtain the required permits to implement their projects in accordance with the legal framework,” Mr Petrović adds.

Prepared by: Mirjana Vujadinović Tomevski

Read the whole story in the new issue of the Energy portal Magazine SUSTAINABLE ARCHITECTURE AND FINANCING OF GREEN CONSTRUCTION 

Global Temperature Record Streak Continues

Foto-ilustracija: Unsplash (Tadeusz Lakota)
Photo-illustration: Pixabay

It was the warmest April on record – the eleventh month in a row of record global temperatures. Sea surface temperatures have been record high for the past 13 months. Extreme weather caused many casualties and socio-economic disruption.

The monthly reports from Copernicus Climate Change Service and the US National Oceanic and Atmospheric Administration highlight the extraordinary duration of record temperatures fuelled by the naturally occurring El Niño event and the additional energy trapped in the atmosphere and ocean by greenhouse gases from human activities. A similar streak happened previously during the strong El Niño event of 2015/2016.

April 2024 had an average surface air temperature of 15.03°C, 0.67°C above the 1991-2020 average for April and 0.14°C above the previous high set in April 2016, according to the ERA5 dataset from Copernicus Climate Change Service implemented by the European Centre for Medium-Range Weather Forecasts on behalf of the European Commission.

The month was 1.58°C warmer than an estimate of the April average for 1850-1900, the designated pre-industrial reference period, according to the ERA5 dataset. Monthly breaches of 1.5°C do not mean that the world has failed to achieve the Paris Agreement’s temperature goal, which refers to a long-term temperature increase over decades.

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South America had its warmest April on record, whilst Europe had its second warmest, according to NOAA.

Northern Hemisphere snow cover extent in April was the smallest on record. Both Eurasia and North America were below average, whereas parts of eastern Russia and China were above average. Global sea ice extent was the tenth smallest on record, according to NOAA.

The record temperatures were accompanied by high-impact weather events – including intense heat in many parts of Asia. A new study from World Weather Attribution said that climate change made the deadly heatwaves that hit millions of highly vulnerable people more extreme.

Drought bit southern Africa and extreme rainfall hit the Arabian peninsula. Persistent heavy rainfall in East Africa and southern Brazil has worsened in the first week of May, leading to devastating and deadly floods. Afghanistan also suffered deadly flash flooding in mid-May, killing at least 300 people and causing widespread destruction of homes and infrastructure.

“The high number of extreme weather and climate events (including record daily and monthly temperatures and rainfall amounts) are more likely in a warmer world,” said WMO climate expert Alvaro Silva.

“The sea surface temperature in several ocean basins, including in the tropical belt, continues to be record high, releasing more heat and moisture to the atmosphere and thus exacerbating conditions,” he said.

The El Niño in the eastern equatorial Pacific continued to weaken towards neutral conditions, but marine air temperatures in general remained at an unusually high level.

The global sea surface temperature averaged for April 2024 over 60°S–60°N was 21.04°C, the highest value on record for the month, marginally below the 21.07°C recorded for March 2024, according to C3S.

WMO uses six internationally recognized datasets for its climate monitoring activities and State of the Global Climate reports.

Source: WMO

New Agrisolar Digital Map Presents over 200 Projects across Europe

Photo-illustration: Unsplash (Mark Merner)
Photo-illustration: Pixabay

SolarPower Europe has launched a new digital map highlighting more than 200 agrisolar projects across Europe that exceed a combined capacity of 2.8 GW, including both pilot and commercial projects.

Agrisolar, referring to the integration of solar photovoltaic projects within an agricultural activity, includes the deployment of PV on the roof of agricultural buildings, PV integrated into irrigation systems, and agrivoltaics.

The map highlights a diverse range of technologies, including ground-mounted PV, interrow PV, dynamic PV, overhead PV, farm rooftop PV, and solar PV greenhouses, tailored to accommodate various agricultural activities.

Eva Vandest, Group Head of Public Affairs, Global Agrisolar expert at Amarenco and Chair of SolarPower Europe’s Land Use and Permitting Workstream, expressed enthusiasm about the initiative, stating:

“With this digital map providing an overview of Agri-PV installations across Europe, we aim to illustrate the current development of this market and enable tracking of its progress. It’s evident that various types of installations have been built in accordance with SolarPower Europe guidelines, fostering a wide array of solutions to address the diverse needs of the agricultural sector.”

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Lina Dubina, Policy Advisor on Sustainability at SolarPower Europe said:

“This map unveils how agrisolar and farming can go hand in hand to support a multitude of crops such as vines, fruit plants, market gardening, wheat, barley, and more. Agrisolar can also integrate with livestock farming practices, including sheep grazing, cows, hens, and beekeeping. “

Dubina continued: “Many agrisolar projects featured on the map incorporate biodiversity initiatives aimed at preserving and enhancing ecosystems. These initiatives include tracking wildflowers as well as various animal species, further underscoring the environmental benefits of agrisolar integration.”

The map provides a comprehensive overview of projects across Switzerland, France (including outer regions), Netherlands, Lithuania, Germany, Spain, Italy, Belgium, Austria, and the UK, serving as a valuable resource for stakeholders interested in the intersection of solar energy and agriculture. The project will be ongoing, with the aim of providing the most comprehensive overview of agrisolar projects in Europe to solar developers, farmers, researchers and policymakers.

Source: SolarPower Europe

Ethiopia is the First Country in the World to Ban the Import of Fossil Fuel Vehicles

Foto-ilustracija: Pixabay
Foto-ilustracija: Pixabay

Although many countries have announced a ban on the import and production of conventional vehicles as targets for 2030 or 2050, Ethiopia is the first country in the world to actually ban the import of fossil fuel-powered cars and switch entirely to electric vehicles.

As reported, in late January this year, the Ethiopian Ministry of Transport announced that a ban on the import of conventional vehicles would come into effect, while the Government of Ethiopia announced a plan to import close to half a million electric vehicles and install over 2,000 charging stations in the next 10 years.

Although the number of registered motor vehicles in Ethiopia is relatively small (about 1.2 million in a population of 126 million people, according to the 2020 data collated by the country’s Ministry of Transport), Ethiopia is determined to completely switch to environmentally friendly vehicles and thereby reduce traffic-generated pollution.

An additional reason for this transition lies in the fact that Ethiopia imports about 6 billion US dollars worth of fossil fuels annually, half of which goes to fuel vehicles. On the other hand, the country has extremely cheap electricity (the price of one kWh is about 1 US dollar for individual consumption and about 2 US dollars for industry), so switching to electric vehicles is also a money-saving measure.

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Close to 100 per cent of electricity comes from renewable sources

Ethiopia is very active in implementing the energy transition and in recent years has added significant wind, solar, geothermal and hydropower capacities to its energy mix. About 90 per cent of electricity production in Ethiopia comes from hydropower plants, while wind and thermal sources have an eight and two per cent share, respectively, in the country’s power production, writes OilPrice.

Ethiopia’s current 5,200 MW of installed generation capacity supplies less than 60 per cent of the population, so the government intends to increase electricity generation capacity to 17,000 MW in the next 10 years.

One of the priorities is also the construction of the Great Renaissance Dam of Ethiopia, which thanks to an installed capacity of 5,150 MW, should serve as a driving force behind industrialization and economic development.

Milena Maglovski

134 million USD initiative aims to eliminate mercury-containing medical devices

Photo-illustration: Freepik (wirestock)
Photo-illustration: Freepik (freepik)

The Governments of Albania, Burkina Faso, India, Montenegro and Uganda have united to combat chemical pollution, launching a 134-million dollars project to eliminate the use of mercury in medical devices.

Used in health-care settings for centuries, mercury is a toxic metal that poses a threat to human health and the environment.

Medical thermometers and sphygmomanometers (devices which measure blood pressure) contain mercury and are harmless as long as they remain intact.

However, when these devices break or are taken out of service, the mercury they contain can escape into the environment where it vaporises, exposing health care workers and patients to harmful fumes. Inhalation can cause damage to the lungs, kidneys and nervous system, while the waste generated can contaminate the immediate area of the spill, as well as a facility’s wastewater.

Such equipment breakages are common.

Led by the United Nations Environment Programme (UNEP), with funding from the Global Environment Facility (GEF) and executed by the World Health Organization (WHO), the Phasing out mercury measuring devices in healthcare project will develop and implement nation-wide strategies to stop the import, export and manufacture of thermometers and sphygmomanometers, encourage the adoption of accurate, affordable and safe mercury-free alternatives, while improving the management of mercury-containing medical waste.

“We need to look at this in the context of One Health,” said Sheila Aggarwal-Khan, Director of UNEP’s Industry and Economy Division. “This initiative is significant, not just for protecting our well-being but because it reduces the impact of healthcare on our shared environment.”

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The five-year project will bring each country in line with international best practice, educating procurement officers on the efficacy of widely available alternative devices and raising awareness amongst manufacturers and the public, as per WHO recommendations and the Minamata Convention on Mercury.

Certain digital thermometers can be up to one-third cheaper than their mercury counterparts when considering the entire lifecycle of both instruments, all while maintaining the same level of clinical accuracy.

Director of Public Hygiene at Burkina Faso’s Ministry of Health and Public Hygiene, Dr. Anta Zida, said the country was keenly aware of the need to reform its healthcare sector to meet Burkina Faso’s international obligations.

“Eliminating medical devices containing mercury in healthcare facilities is saving lives and protecting the environment” she said.

“The healthcare sector serves to protect and improve public health; this project will further demonstrate the important leadership role that the sector has in promoting sustainability,” said Dr Maria Neira, Director, Climate Change, Environment and Health at WHO.

The project aims to phase out mercury-added thermometers and sphygmomanometers at a rate of 20 percent per year, reducing spillages by 23,350kg and improving the lives of over 1.8 million people.

Source: UNEP

Artificial Intelligence in the Fight Against Hunger

Foto-ilustracija: Unsplash (Possessed Photography)
Photo-illustration: Pixabay (hpgruesen)

How do you imagine the world in 2050? Flying cars? Robots that help us with housework? With all that sophisticated technology, life will certainly be nice for a small part of the world’s population. Still, the chances are high that billions of people will fight something that has plagued humanity for centuries – hunger.

Experts estimate that in 2050, the planet will be inhabited by 9.1 billion people, so farmers will have to produce 70 per cent more food than today. This seems almost impossible with the current climatic conditions, as the intensity of floods, droughts, and other weather disasters increases yearly.

Climate change is the biggest threat to food production today, and the fight against this enemy of our own making is being waged on many fronts. Regarding agriculture, food production must reduce greenhouse gas emissions because food systems are responsible for 30 per cent of global emissions. On the other hand, farmers need to adapt to harsh and unpredictable weather conditions to minimize losses.

Fortunately, technology has advanced, and farmers today have artificial intelligence, robotics, and gene manipulation to help maintain and improve production.

Himanshu Gupta, one of the most prominent entrepreneurs in the field of climate change, has experienced firsthand what it’s like to run out of food. According to the World Economic Forum, Gupta’s grandmother often mixed milk with water to feed her family of 16 members.

This Indian-American entrepreneur is now determined to help farmers facing an increasingly severe climate crisis by using artificial intelligence.

His company, ClimateAI, provides people with insight into detailed and long-term forecasts thanks to machine learning, i.e. artificial intelligence. Forecasts are based on a large amount of data that includes, among other things, the history of weather conditions in a particular area, established weather patterns and climate change as an important factor. Such predictions are characterized by high accuracy, so farmers will know if they can expect droughts, floods, and other weather disasters up to six months in advance.

Photo-illustration: Unsplash (Markus Spiske)

Users of Gupta’s ClimateLens platform can opt-in at any time and receive key alerts and data that allow them to adjust their investments, act to protect their crops and choose genetically modified seeds resistant to upcoming weather conditions.

Farmers are increasingly using other technological aids in addition to artificial intelligence. Drones are one of the most common innovative agricultural solutions and are often used for monitoring and spraying plants. Robots, which will become increasingly common in agriculture, are also being used, and in some parts of the world, they are already pulling weeds and performing other complex tasks.

Modern agriculture, and especially future agriculture, seems to require advanced technology to ensure maximum yields and prevent famine. Large-scale food production requires advanced and smart solutions; fortunately, we have them at our disposal.

Milena Maglovski

EU prepares for the 2024 wildfire season

Photo-illustration: Pixabay
Photo-illustration: Pixabay

Summer is almost upon us. That means barbecues, beaches and ice cream, but the reality is, it also means bracing ourselves for the upcoming wildfire season.

That is why the EU has this week taken proactive measures to bolster firefighting efforts in order to better protect our communities and the environment.

For 2024 the EU has put together 556 firefighters from 12 countries that will be strategically prepositioned across key locations in Europe this summer, such as in France, Greece, Portugal, and Spain. They will stand ready to support local fire brigades, when the scale of a wildfire overwhelms the response capabilities of a country. In addition, there will be a dedicated rescEU fleet of firefighting aircraft for this summer, consisting of 28 airplanes and 4 helicopters stationed in 10 Member States.

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600 million euros in EU funds has also been allocated to acquire additional firefighting aircraft. The extra funding will go towards buying 12 new firefighting planes in the future, which will be distributed among six EU Member States, as well as several helicopters.

Wildfire prevention, preparedness and response actions work hand in hand to save lives, livelihoods and protect the environment. As the impact of climate change is felt more acutely every year, the threat of wildfires grows too, making it ever more important to be well prepared.

Source: European Commission

With the Novaston Team, Schneider Electric has LEED Platinum Certification

Photo: Novaston
Photo: Novaston

The InGrid office building of the company Schneider Electric recently received LEED Platinum certification. The entire certification process, from the very beginning of implementation to realization, was led by the Novaston Project Management (NPM) company team, which is part of the Novaston real estate platform.

 “It is an office project that covers approximately 17,000 square meters and is intended to accommodate 800 employees. Our company, Novaston Project Management (NPM), has been in charge of this process from the beginning – of the implementation to its realization. Of course, we also owe a great deal of gratitude for the joint work and effort to obtain such a high level of certification to our collaborators, Triple Green BC, and above all to Schneider Electric, which sets high demands and applies sustainability in every segment of its business and corporate policy. From the beginning, we had very clear concept guidelines based on sustainable principles: the integration of space with greenery and natural light, the organization of the workspace in accordance with the principles of social sustainability,” said Jelena Jolović, Head of Operations at NPM, who led the entire process.

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The company Novaston Project Management (NPM) says that they are very proud of the fact that in a short time, they managed to fulfil all the requirements for obtaining the highest level of LEED certificate – the LEED Platinum certificate. Many things influenced the fulfilment of the conditions; some of them are:

  • Energy performance: the project achieves almost 50 per cent energy savings compared to a standard similar project and receives additional LEED points for the production of renewable energy, which accounts for one-fifth of the building’s energy consumption.
  • BMS: management of the facility with more modern systems to be aware of energy consumption at all times. The facility received additional points for reduced internal water consumption (by more than 55 per cent compared to a similar facility) and the ability to use the project as a green building education tool.
  • Innovations: the project met high innovation criteria thanks to quality design, access to nature through the view and interior atriums, and biophilic design that provides a soothing and productive environment. High-quality micro-en vironments, which are equally accessible to all company employees, have been achieved.
  • Exceptionally good location: the project has excellent access to public transport for more than 1000 passengers, thus reducing the carbon footprint of private vehicle transport.

    Photo: Novaston

According to currently available data on the official website of the U.S. Green Building Council, Schneider Hub is one of the three owners of the LEED Platinum certificate currently in our country. The LEED certificate is essential for investors who show responsibility in business and set an excellent example in the construction industry. A building designed and built according to the LEED Gold or Premium standard has reduced electricity and water consumption, lowered CO2 emissions by 10–30 per cent, reduced operating costs, and increased the value of the building.

The LEED certificate is also extremely important for the end user of such facilities; they are healthier and happier, have better working conditions, more natural light, and greenery, but they also have the feeling that in such a working environment, they contribute to the betterment of society and the community.

Source: Novaston

Read the story in the new issue of the Energy portal Magazine SUSTAINABLE ARCHITECTURE AND FINANCING OF GREEN CONSTRUCTION 

Oil Spills Pose a Bigger Threat to Freshwater Ecosystems

Foto-ilustracija: Pixabay
Foto: Facebook (screenshot)

Oil spills are a major environmental problem that occurs every year worldwide, affecting oceans, seas, rivers, and lakes. Although the world is familiar with the issues and changes in salt water, the effects oil spills have on freshwater are less understood.

A team of researchers from the American Chemical Society simulated oil spills in rivers and then studied what happens chemically to the oil in freshwater environments such as rivers and lakes. They collected water samples at various points during the nearly two-month experiment to analyze the changes.

We know some of the basic problems that oil creates when it is poured into water, such as the darkening of the surface of the water that it creates due to its structure, and it disrupts photosynthesis in plants since they cannot get enough sunlight. Of course, the quality of the water decreases, and the poisoning of animal life is also possible. The river vegetation, diverse river banks and downstream water flow often make cleaning difficult, so it is necessary to form a dam in a suitable location to “catch” the oil spill. However, research has shown that these are not the only problems oil spills cause in freshwater ecosystems.

Research has shown that as oil ages in freshwater, it undergoes chemical changes that lead to the formation of new compounds. These compounds get more oxygen atoms, making them more stable in water but also more harmful than in the sea and ocean. Oxygen-rich compounds, especially sulfur oxide derivatives, may have more impact on aquatic life.

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Last year, over 30,000 liters of oil were spilt near the village of Čelarevo in Serbia, as a result of which river beaches were closed.

One of the significant cases of oil spills in the river happened in Russia a few years ago, when a company was fined with the biggest penalty on record for causing an environmental disaster. This occurred in 2020 when about 21,000 tons of diesel leaked from the company’s tank into the Ambarnaya River in the Arctic north of Russia. The contamination affected the river and the surrounding area, with the pollution spreading to Lake Pyasino, which flows into the Kara Sea. In total, the oil contaminated an area of 350 square kilometers.

A significant oil spill also occurred in Ecuador in 2022. The incident was caused when heavy rains triggered a landslide, after which the oil pipeline was damaged due to falling rocks. The oil contaminated the Coca River and almost two hectares of the protected area of the National Park.

In all, 2023 saw ten significant oil spills, one of which was large-scale, with over 700 tons of fuel oil spilled in Asia in February. The remaining nine incidents involved smaller spills, which occurred around the world—four in Asia, two in Africa and Europe, respectively, and one in the Americas. These developments add to the annual average of around 6.8 major spills, which is in line with the averages from the previous decade, according to ITOPF data.

Energy Portal

Italy is Considering Banning the Construction of Solar Power Plants on Arable Land

Photo-illustration: Pixabay (mrganso)
Photo-illustration: Unsplash (Mark Merner)

To improve agricultural production, the Italian Ministry of Agriculture, Food Sovereignty and Forests proposed a draft regulation on agriculture, which, among other things, bans the installation of photovoltaic structures on agricultural land.

According to the Italian media, the Council of Ministers will soon consider the draft regulation. It is not yet known whether the Minister of Agriculture, Francesco Lollobrigida, will decide to confirm the ban on solar energy despite the criticism from Italia Solare.

The Italian association Italia Solare objected strongly to the Ministry, noting that solar energy is essential to achieve the country’s energy independence and security at low costs.

The Ministry has incorporated a ban on the construction of solar power plants on arable land in measures to support agriculture due to the potential negative impacts of photovoltaic structures on agriculture and the landscape. Still, Italia Solare explains that it would be sufficient to identify the areas where solar panels can be installed so that they do not harm agriculture and nature.

The Association said that only one per cent of unoccupied agricultural land could provide Italy with 25GW of solar energy by 2030, while the remaining 25GW can be installed on roofs. This would allow the country to meet its 50 GW of solar energy goal by 2030.

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Should solar power plants be built on arable land?

While solar energy advocates generally support installing solar panels on arable land to decarbonize the energy sector and agriculture, some strongly oppose it.

The non-governmental organization Citizens for Responsible Solar from the United States warns that the construction of solar power plants on arable land can have several consequences, such as permanent deterioration of soil quality, usurpation of fertile soil that can be used for growing food for the next 30-40 years, potential water pollution and negative impact on wild animals.

One possible solution is agro-solar projects combining food production and solar energy, whose popularity in the world and the region has been growing year-on-year.

Italy already has several agro-solar plants, the largest of which is located in Sicily and spans 155 hectares.

Milena Maglovski

How Can the Collision of Salt and Fresh Water Create Electricity?

Foto-ilustracija: Pixabay
Photo-illustration: Pixabay

Estuaries are places where freshwater river and saltwater marine ecosystems meet. They are important for biodiversity, as they are home to many species of plants and animals that have adapted to the unique environment, which is why you can find shore-nesting fish and birds in the estuaries.

Osmosis is a key process that occurs in estuaries. This process occurs when water passes through a semi-permeable membrane from an area of lower salt concentration to an area of higher salt concentration, trying to equalize the salt balance. This means that when fresh water from the river flows into the salt water of the estuary, the water tends to the areas with higher salt content. This natural phenomenon creates pressure that can be used to produce energy, not just any kind, but completely clean and environmentally friendly.

Scientists have recognized the potential of osmosis as a source of renewable energy, as it can be used to generate electricity, however, to achieve this, they have developed special membranes that allow water to pass through, but retain salt and other particles. A key part of this process is controlling the flow of ions and electrons through the membrane. The more permeable the membranes are to ions and the lower the resistance, the greater the potential for energy generation.

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American Chemical Society researchers have shared research data obtained after developing a prototype of an innovative RED (reverse electrodialysis) membrane that enables more efficient energy production. These membranes are designed with separate channels for ion and electron transport, which reduces internal resistance and increases permeability. In laboratory tests, these membranes have shown excellent performance, giving more than twice the power density of commercial membranes, thanks to the separate channels. This success hints that osmosis energy could become one of the options for energy production in the future.

The first osmotic power plant was launched in Norway in 2009 on the coast of the Oslofjord. Although this was an experimental project, it demonstrated the potential of osmotic energy as a renewable energy source.

Such projects are not without challenges that curb the wider application of osmotic energy. Membrane production costs are high, system efficiency varies and membrane durability can be problematic. However, interest in osmotic energy is growing, as scientists continue to explore ways to improve efficiency and reduce costs, which could make osmotic power plants competitive in the future.

Energetski portal

What Happens to Oases in Times of Climate Change?

Photo-illustration: Unsplash (willian-justen-de-vasconcellos)
Photo-illustration: Unsplash (attila-janosi)

The Sahara, the largest desert on the planet, is about the same area as the continental United States and stretches across several countries, including Algeria, Libya, Egypt, Morocco, Tunisia, Mali, Niger, and Chad. It makes up 31 per cent of the continent. Asia has many deserts, starting from the Gobi desert, Karakum and Taklamakan to the Thar and Dasht-e Kavir desert in Iran and others. Water in these areas means life and is often associated with the emergence of oases.

Within desert areas, oases are key sites for human settlement and agriculture. They are formed where underground water comes to the surface or where a river passes, which allows the growth of vegetation and the life of a community. Oases are located in 37 countries, with the largest number of them being in Asia, while 13 per cent are located in Australia.

One study conducted by experts from the American Geophysical Union looked at how oases grew and shrank over 25 years (from 1995 to 2020) and found that oases around the world have grown by more than 220,149 square kilometres in size, mostly due to intentional oase expansion projects in Asia. However, desertification caused the loss of 134,300 square kilometres of oases, also mostly in Asia, leading to a net increase of 86,500 square kilometres during the study period. Desertification is the process when fertile land becomes dry and unproductive and eventually turns into a desert or semi-desert.

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Photo-illustration: Unsplash (sander-weeteling)

Oases are crucial for arid areas because they are a source of water, food and life. They are usually used to grow cotton, olives, figs, citrus fruits, wheat and corn. Communities often plant large trees, such as palm trees, around oases to protect crops from sand. Some of the world’s largest reserves of groundwater lie beneath the Sahara desert, supporting close to 90 large oases in the region.

Climate change and anthropogenic factors pose a serious threat to the survival of oases. Depleting groundwater, changes in rainfall patterns and rising temperatures can all lead to the drying out of oases, threatening their ecosystems and the communities that depend on them. Therefore, it is crucial to take measures to conserve water and maintain these vital areas in arid regions, as they are home to 10 per cent of the world’s population even though they occupy about 1.5 per cent of the land mass.

Energy portal

The Position of the Bird’s Wings in Flight as a Solution for more Efficient Use of Wind Energy

Photo-illustration: Unsplash (Thomas Reaubourg)
Photo: courtesy of Blagoje Krivokapić

Ambitious goals related to renewable energy sources and zero emissions require not only boosting the capacity of such sources and expediting infrastructure development but also improving existing and creating innovative technology. Energy obtained from wind recorded good results during the previous year, but additional efforts are needed to achieve the set goals. Blagoje Krivokapić, a mechanical engineer from Nikšić, offered one of the solutions to make wind energy more efficient.

At the European Researchers’ Night in Podgorica, he initially presented his invention – the Nikšić Turbine. After additional improvements, the invention was presented at the Global Investment Forum Cyprus – GIF 2023. The turbine was declared the best among 200 presented projects from 25 countries and was awarded a gold medal. Additionally, it also received a Grand Prix. This award boosted the invention’s value and facilitated the creation of a team for its implementation.

Mr Krivokapić says that the inspiration for the idea came from the solutions given to us by nature. Explaining what makes his solution more successful than conventional wind turbines, he said that the current design is not in harmony with nature. Namely, the position of the turbines fights against the wind instead of surrendering to it and using its power.

“Nature offers us the best and simplest solutions, like the position of a bird’s wings during flight“, Mr Krivokapić explains.

IN FOCUS:

He adds that the propeller design he created mimics precisely the position of the bird’s wings in flight because birds move best through the air. The famous Archimedes’ quote – “Give me a lever long enough and a fulcrum on which to place it, and I shall move the world“ – was his guideline. The lever plays a vital role in Mr Krivokapić’s project, as he explains, in layman’s terms, how energy is generated using this technology.

“A bird’s wing is shaped in a way that it accepts the wind’s resistance instead of going against it, and the power is generated thanks to the lever, i.e. when we place the shaft on the levers, thanks to wind force, we generate the movement of a circular circuit. This is how the best utilization of its is achieved, in addition to its greatest efficiency“, he says, adding that once power is generated, it can easily be transformed into speed.

Applying such a solution would enhance environmental protection, taking into account that it has the potential to produce three times more electricity than conventional wind turbines. More precisely, one windmill currently produces about 2.4MW of electricity, while his solution could produce up to 8MW. Regarding finances, construction will require almost two times less funds.

Prepared by: Katarina Vuinac

Read the story in the new issue of the Energy portal Magazine SUSTAINABLE ARCHITECTURE AND FINANCING OF GREEN CONSTRUCTION

The Potential and Impact of Solar Panels on Water Surfaces

Photo illustration: Pixabay

Foto-ilustracija: Pixabay (LCEC)

Solar energy is developing faster than all other renewable energy sources. There are different types of panels and many ways in which they can be installed. Ground and roof solar power plants are still the most popular ones. Continuous research conducted to use the sun’s energy as efficiently as possible has shown that solar panels can be placed in different areas in nature, buildings, means of transport and even on objects. For instance, there are solar windows, solar trees, and solar roof tiles. Panels are also installed in cars and there are also external batteries for charging small electronic devices that are powered by solar energy.

Solar power plants that are installed on water surfaces, the so-called floating solar power plants, are increasingly becoming a hot topic of conversation. Namely, these are solar panels that are installed on floating structures, mostly on calmer bodies of water, such as lakes or those near dams. Anchoring systems are added to them to ensure the stability of the installed panels.

Research has shown that solar power plants built in this way have several advantages over those, one might say, usual ones, that is the ones installed on the ground and roofs. Namely, experts in this field say that solar panel operations are affected by the air temperature because when the panels are heated, their efficiency decreases. This is precisely where the advantage of water solar panels lies, as water provides a natural cooling effect. The data shows that the temperature of the solar positioned on a body of water can increase their efficiency by 15 per cent.

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Another reason why the presence of water increases their effectiveness is the albedo effect. More precisely, this effect refers to the ability of a certain surface to reflect light back and as we all know, water surfaces reflect sunlight more strongly than land ones. Thanks to this feature, the sunlight is directed back to the solar panels, which increases its amount and thus simultaneously improves the efficiency of electricity production.

However, there are also a few drawbacks that we should mention. Such projects are mostly large-scale, which means that if someone wants to produce electricity for their own needs, such as for their home, it is more practical to install them on the roof. Furthermore, not all bodies of water can be used for solar power plants, because they need to be calm. Also, the cleaning of the panels is not that easy, as it often requires more financial resources and special equipment. The panels need to be clean to be efficient.

Another questionable feature is the impact that such power plants have on the aquatic ecosystem. Some studies have shown that they can have positive effects. Given that they create a shading effect, i.e. create a shadow on the surface on which they are placed, solar panels contribute to lowering the water temperature and thereby reducing the degree of its evaporation. This is especially important in areas that are arid and where there is a risk of water shortage. Second, by preventing sunlight from penetrating below the surface of the water, algae growth is reduced. The so-called algal bloom, which can cause negative consequences for the aquatic ecosystem, occurs due to the excessive availability of sunlight and nutrients, which are reduced by the presence of floating solar power plants.

Foto: Printscreen/Youtube

However, if such power plants are installed without special precautions, they can hurt the living world. As mentioned earlier, the presence of the panels affects the temperature of the water as well as other characteristics, thus changing the exchange of oxygen and carbon dioxide, wind effects and the amount of sunlight that penetrates below the surface. To keep these changes under control, there is a limit on the degree of coverage of water areas. Other rules should also be noted, such as that floating solar systems should be installed at least 40 metres from the shore. The coastal part is a habitat for many plant and animal species, including birds, beavers, insects and others. Given that there is still not enough research that can confirm whether and to what extent solar power plants would negatively impact this segment of biodiversity, i.e. their nutrition, reproduction and the possibility of injury, the coastal part must be left untouched.

Katarina Vuinac

Smart Living ABB-Style

Photo: ABB
Photo: ABB

In today’s age, when the prices of energy products and electricity have reached their highest historical values, smart houses, apartments, and business premises are presented as an effective solution for bridging the energy crisis. These facilities, combined with renewable energy sources and other energy efficiency measures, ensure comfort and safety at all times and provide significant energy savings. Therefore, it is not surprising that the age of smart buildings has already arrived in our area.

Relying on the decades-long tradition of the KNX standard, the ABB Company has developed the ABB free@home system, which has been raising the quality of the everyday life of its users in Serbia for more than five years. Because this company operates in over 100 countries and its continuous commitment to the development and improvement of its own systems and equipment, in cooperation with reliable system integrators from the Pametan Stan Company (the Smart Apartment Company), users can be rest assured that they will enjoy the system’s performance for decades to come.

On the other hand, considering how expansive the offer of new buildings is, developers have to stand out in the market, and they can do that by choosing a smart home system that creates a significant advantage. For instance, the experience of ABB experts worldwide shows that implementing this system greatly expedites the sale of buildings that are branded as smart.

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Photo: ABB

The first smart building in Serbia, B2, was built in Terazije, in the heart of Belgrade, where a complete ABB home automation system, intercom system, and weather station for each apartment were installed and commissioned. Furthermore, preparations are being made for electric car chargers for each parking space in the facility. Other buildings that contain this system include the building of the Regional Air Traffic Control in Surčin and several luxury mansions. Royal Art Residence & SPA, an exclusive facility located at 21 Kosančićev Venac, known for bringing its Paris-like charm to the very centre of Belgrade, has apartments that are equipped with an ABB home automation system (smart home systems). In recent times, smart home systems have become common in mass residential construction, i.e., in buildings with hundreds of apartments. The solutions that the ABB Company provides are ready for any challenge that may occur, which was also recognized by the developers from Novi Dorćol. As a cross between authentic, traditional and modern architecture, the building in Novi Dorćol, spanning 16,800 square metres, has had 4,300 smart home devices installed in 225 apartments. Furthermore, 950 scenarios have been created, and six weather stations have been installed in the building to inform its tenants about the weather and warn them of dangerous situations. In the same urban architectural spirit, the ABB free@home system is integrated into the ZepTerra residential-business complex in Novi Beograd, built in accordance with state-of-the-art standards and energy efficiency requirements.

Comfortable, safe and economical side

The term smart is used by these home automation systems to describe their ability to act based on predefined parameters and rules entered by the installer or users themselves, according to their personal preferences and needs. These systems do not rely on artificial intelligence for autonomous decision-making, so users can rest assured that smart homes cannot take control of their lives. The ABB home automation system gives the user full control in managing the home in four ways. The classic management method implies that a smart home has switches and sockets that perform predefined functions. Electrical installations such as lighting, blinds, motorized awnings, heating and cooling, and household appliances are managed remotely via a mobile phone, tablet, or computer. Motion sensors and presence sensors allow, for example, the light to be turned on as long as someone stays in the room, and when someone leaves the room, the light turns off. The timer feature allows users to define functions that will activate or end at a specific time or last for a specific period.

ABB

Read the story in the new issue of the Energy portal Magazine SUSTAINABLE ARCHITECTURE AND FINANCING OF GREEN CONSTRUCTION

Global Temperature Record Streak Continues in April

Photo-illustration: Pixabay
Photo-illustration: Unsplash (Tadeusz Lakota)

It was the warmest April on record – the eleventh month in a row of record global temperatures, according to Europe’s Copernicus Climate Change Service (C3S). Sea surface temperatures have been record high for the past 13 months.

The monthly report highlights the extraordinary duration of record temperatures fuelled by the naturally occurring El Niño event and the additional energy trapped in the atmosphere and ocean by greenhouse gases from human activities. A similar streak happened previously during the strong El Niño event of 2015/2016.

April 2024 had an average surface air temperature of 15.03°C, 0.67°C above the 1991-2020 average for April and 0.14°C above the previous high set in April 2016, according to the ERA5 dataset from Copernicus Climate Change Service (C3S), implemented by the European Centre for Medium-Range Weather Forecasts on behalf of the European Commission.

The month was 1.58°C warmer than an estimate of the April average for 1850-1900, the designated pre-industrial reference period, according to the ERA5 dataset. Monthly breaches of 1.5°C do not mean that the world has failed to achieve the Paris Agreement’s temperature goal, which refers to a long-term temperature increase over decades.

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The record temperatures were accompanied by high-impact weather events – including intense heat in many parts of Asia, drought in southern Africa and extreme rainfall in the Arabian peninsula. Persistent heavy rainfall in East Africa and southern Brazil has worsened in the first week of May, leading to devastating and deadly floods.

“The high number of extreme weather and climate events (including record daily and monthly temperatures and rainfall amounts) are more likely in a warmer world,” said WMO climate expert Alvaro Silva.

“The sea surface temperature in several ocean basins, including in the tropical belt, continues to be record high, releasing more heat and moisture to the atmosphere and thus exacerbating conditions,” he said.

The El Niño in the eastern equatorial Pacific continued to weaken towards neutral conditions, but marine air temperatures in general remained at an unusually high level.

The global sea surface temperature averaged for April 2024 over 60°S–60°N was 21.04°C, the highest value on record for the month, marginally below the 21.07°C recorded for March 2024, according to C3S.

WMO uses ERA5 along with five other internationally recognized datasets for its climate monitoring activities and State of the Global Climate reports. The US National Oceanic and Atmospheric Administration, NASA, and Japan Meteorological Agency also issue monthly reports.

Source: WMO