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This book uniquely covers both the physics of photovoltaic (PV) cells and the design of PV systems for real-life applications. – Fundamental principles …

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In this Thursday , Aug. 9, 2018, photo, a solar park on the Aegean island of Tilos, Greece. Tilos with its winter population of 400 and summer population of some 3000, will become the first island in the Mediterranean to run exclusively on wind and solar power, when the blades of the 800 kilowatt wind turbine start turning. (AP Photo/ Iliana Mier)

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A golf course in western South Dakota has added more than 230 solar panels to offset the energy use of an irrigation system.

The panels were installed over 10 days along the north side of the irrigation pond at the Elkhorn Ridge Golf Club and Resort’s 18th hole. They’re expected to cut the electrical bills for the course by more than $13,000 a year, the Black Hills Pioneer reported.

“They currently provide power to the pumps for the irrigation system and the well we use to fill the pond,” said course superintendent Greg Brandriet. “The system will generate a yearly average of 120 MWh (megawatts per hour), around 43 percent of our annual usage for the irrigation system.”

The system would produce an excess of electricity during the winter months, when that energy would be returned to the grid. The system would provide as little as 25 percent in the peak usage months of July and August.

“In the world of golf, there is a growing movement to become more sustainable and enhance the many benefits golf has for the environment,” Brandriet said. “This system highlights the forefront of this national movement into alternative energy and environmental stewardship and also strengthens our dedication to the local community.”



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Egypt to implement 4Mw solar power project in Uganda

Egypt is set to implement a 4MW solar power project in Uganda that is geared at improving the country’s renewable energy performance. Access to modern energy services through renewable energy development is a major concern for the energy sector in Uganda.

The grant agreed between the two countries states that, Egypt will provide the necessary equipment and engineering services while Uganda will provide the 7.5-hectare land upon which the project will be implemented. The latter will also cater to the logistics of the project in terms of taxes and shipping cost from Mombasa, Kenya. The project will be Uganda’s third largest power station.

Also Read: South Africa to construct 250MW solar Pv in REIPPPP Round 4 projects

Third large solar power station

The Egyptian engineers from the Ministry of Electric & Renewable Energy Authority headed by Senior Eng. Mohammed A. Abdel Aziz, in accompaniment of the Project Manager, Eng. Reda Shaban Ali, said they have inspected the terrain of the proposed site which they have found appropriate for the solar plant.

The project will be the third large solar power station to be implemented after Access Solar’s 10MW station in Soroti and Tororo North Company’s 10MW installation just outside Tororo municipality. The power station will be connected to the grid through Tororo substation.

Uganda’s energy potential

According to Mr. Wilson Wafula, the Commissioner Renewable Energy at Ministry of Energy and Mineral Development, the project will be beneficial to both community and country but most importantly to the University which will use it as a training spring board for students to graduate in renewable energy programs.

Uganda’s estimated renewable energy potential stands at 5,300 MW. Rural electrification will not only attract investments but have a ripple effect on major sectors as industry and agriculture. The country highly relies on agriculture as the backbone of the economy which according to Mr. Wafula more investment to better its performance would serve the country right.

 

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TILOS, Greece — When the blades of its 800-kilowatt wind turbine start turning, the small Greek island of Tilos will become the first in the Mediterranean to run exclusively on wind and solar power.

The sea horse-shaped Greek island between Rhodes and Kos has a winter population of 400. But that swells to as many as 3,000 people in the summer, putting an impossible strain on its dilapidated power supply.

This summer, technicians are conducting the final tests on a renewable replacement system that will be fully rolled out later this year. It will allow Tilos to run exclusively on high-tech batteries recharged by a wind turbine and a solar park.

The European Commission says Tilos will be the first autonomous renewable green island in the Mediterranean. It plans to use the project as a blueprint for other small islands across the European Union that have limited grid connection to the mainland. The EU has largely funded the project, providing 11 million euros ($12.5 million) of the total 13.7 million-euro ($15.7 million) cost.

“The innovation of this program and its funding lies in the batteries — the energy storage — that’s what’s innovative,” project manager Spyros Aliferis said. “The energy produced by the wind turbines and the photovoltaics will be stored in batteries, so that this energy can be used for the grid when there is demand.”

The batteries store power during sunny and windy conditions, releasing it during periods of heavy demand and lower production — such as at nighttime and the peak tourist season — to keep the grid powered up.

Named TILOS — Technology Innovation for the Local Scale Optimum Integration of Battery Energy Storage — the project uses a prototype battery system that improves storage of the excess energy generated until it’s needed.

To work, it required an overhauled grid with smart meters installed in homes and businesses to calculate times of peak demand.

Currently, Tilos gets its energy from an underwater cable that runs from Kos to the island of Nisiros and on to Tilos. That creates an erratic, outage-prone service that routinely breaks appliances and has forced many businesses to rely on diesel generators.

While lacking the dazzle of other Greek islands like Mykonos and Santorini, Tilos — a 14-hour ferry ride from the mainland — is a quiet vacation spot that sees an average of 13,000 visitors a year. It’s known as a green island, popular with hikers and bird watchers, and most of it is now a protected nature reserve.

Mayor Maria Kammas saw a green energy system as the island’s natural next step.

“For many years now, Tilos has plotted a course that is dedicated to protecting the environment,” she said. “We are seeking visitors — tourists actually — people who will visit our island who love the environment and want to protect it and nature as it was given to us.”

Tourism is the main source of revenue for the island. But businesses have been plagued by lengthy blackouts, leaving hotels without air conditioning and restaurants without light or power, forcing them to discard food from warm refrigerators.

Hotel owner Sevasti Delaporta has closely followed the project since its inception over two years ago. There were initial doubts about the idea among Tilos residents, but tests have run smoothly, even during peak times this summer. The grid is expected to be fully operational in a few months.

“I’m very optimistic about this project because there are few negative consequences as a business, and for the guests of the hotel that I run,” says Delaporta. “People are pleased with the service because they have no problem with their fridges and they have no problem with their air conditioning. They are happy.”

With long sunny days and average temperatures of 33 degrees Celsius (91 degrees Fahrenheit) during the summer, tourists spend their mornings at the beach and afternoons napping. The island comes alive in the evening, when businesses open and residents and tourists alike flock to bars and cafes.

Eva Lemaier has visited the island every year for more than two decades. Coming from the Netherlands, which has one of the world’s highest environmental standards, she says Tilos’ green policies stand out in Greece.

“I’m also a little bit proud of Tilos about what they are doing now, with the renewable energy,” she said. “I think it’s good for the island not to be dependent on other islands.”

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This story has been corrected to show that the Dutch tourist’s surname is Lemaier, not Lemaire.

Copyright 2018 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.



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A golf course in western South Dakota has added more than 230 solar panels to offset the energy use of an irrigation system.

The panels were installed over 10 days along the north side of the irrigation pond at the Elkhorn Ridge Golf Club and Resort’s 18th hole. They’re expected to cut the electrical bills for the course by more than $13,000 a year, the Black Hills Pioneer reported.

“They currently provide power to the pumps for the irrigation system and the well we use to fill the pond,” said course superintendent Greg Brandriet. “The system will generate a yearly average of 120 MWh (megawatts per hour), around 43 percent of our annual usage for the irrigation system.”

The system would produce an excess of electricity during the winter months, when that energy would be returned to the grid. The system would provide as little as 25 percent in the peak usage months of July and August.

“In the world of golf, there is a growing movement to become more sustainable and enhance the many benefits golf has for the environment,” Brandriet said. “This system highlights the forefront of this national movement into alternative energy and environmental stewardship and also strengthens our dedication to the local community.”



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Hello Potential Donors, thank you for your interest in my project proposal! I am a public school teacher from South Florida. I am always looking for ways to infuse STEM projects into the curriculum. Many go beyond what I am capable of​ financing myself. I appreciate any assistance you can provide in contributing to inspiring experiences for my students.

My students are always eager to learn and explore! They get excited about learning when presented with unconventional resources that challenge them to think outside the box. They love to question, discuss ideas, and exchange their points of view.

My students need innovative STEM materials to spark their interest, motivate them to learn and challenge their thinking.

Ray Catcher Sprint Deluxe Solar Vehicle kits and accessories will challenge my students to create (as the intent is to eventually modify the kits using recyclable materials) solar-powered cars using a solar panel and motor. In the process, students will investigate the concepts of the engineering process, solar energy, mechanics of solar panels, effectiveness of their designs and the factors affecting their cars’ optimal performance. Items requested in this project proposal will enable my students to experiment with different variables to learn which elements are crucial to an effective car design. Thank you to any potential donors for providing my students with hands-on projects encouraging higher order thinking and problem solving!



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Saudi Arabia prepares for the annual Muslim hajj pilgrimage

MECCA, Saudi Arabia (AP) — Saudi Arabia is preparing to host the annual hajj pilgrimage beginning Sunday, as over 2 million Muslim faithful are ready to take part in the ultraconservative kingdom.

The pilgrimage represents one of the five pillars of Islam and is required of all able-bodied Muslims once in their life. In recent weeks, the faithful have arrived in Mecca from across the world, all chanting “Labayk Allahuma Labayk,” or “Here I am, God, answering your call. Here I am.”

The hajj offers pilgrims an opportunity to feel closer to God amid the Muslim world’s many challenges, including the threat of extremists in the Mideast after the Islamic State group was beaten back in Iraq and Syria and the plight of Myanmar’s Muslim Rohingya minority.

“My feeling is indescribable to perform the hajj,” said Imad Abdel-Raheem, an Egyptian pilgrim. “I also want to pray for all Muslim countries, for them to live free in all places, in Palestine and in Burma, in all places, in Afghanistan and in India.”

Maj. Gen. Mansour al-Turki, the spokesman of the Saudi Interior Ministry, told journalists Saturday that over 2 million Muslims from abroad and inside the kingdom would be taking part in this year’s hajj.

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Q&A: The hajj pilgrimage and its significance in Islam

Over 2 million Muslims from around the world are beginning the five-day hajj pilgrimage on Sunday. They will circle Islam’s most sacred site, the cube-shaped Kaaba in the Saudi Arabian city of Mecca, and take part in a series of rituals intended to bring about greater humility and unity among Muslims.

Here’s a look at the pilgrimage and what it means for Muslims:

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WHAT IS THE PURPOSE OF THE HAJJ?

The hajj is one of the five pillars of Islam, and all able-bodied Muslims are required to perform it once in their lifetime. The hajj is seen as a chance to wipe clean past sins and start fresh. Many seek to deepen their faith on the hajj, with some women taking on the Islamic hair covering known as “hijab” upon returning.

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‘Dream or reality?’ Koreans to meet after decades apart

SEOUL, South Korea (AP) — Lee Soo-nam was 8 the last time he saw his older brother. Sixty-eight years ago this month the boy watched, bewildered, as his 18-year-old brother left their home in Seoul to escape invading North Korean soldiers who were conscripting young men just weeks after invading South Korea to start the Korean War.

An hour later his brother, Ri Jong Song, was snatched up by North Korean soldiers near a bridge across Seoul’s Han River. Lee always assumed Ri died during the three-year war that killed and injured millions before a cease-fire in 1953, but his mother prayed daily for her lost son’s return, only giving up a few years before her death in 1975.

But Ri survived the war, living in North Korea. The brothers, now 76 and 86, will be among hundreds of Koreans who will participate, starting Monday, in a week of temporary reunions of divided families. Many have had no contact with each other since the war cemented the division of the peninsula into the North and South.

The elderly relatives gathering at North Korea’s scenic Diamond Mountain resort know that, given the fickle nature of ties between the rival Koreas, this could be the last time they see each other before they die.

“I’m nervous. I’m still unsure whether this is a dream or reality. I just want to thank him for staying alive all these years,” Lee said in an interview in his home in Seoul, not far from where he last saw his brother.

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Annan’s legacy of fighting for equality and rights lives on

UNITED NATIONS (AP) — Kofi Annan left the United Nations far more committed than it had been to combating poverty, promoting equality and fighting for human rights — and until his death Saturday he was speaking out strongly for nations working together to solve problems and worried about the rise of nationalism.

As secretary-general of the United Nations from 1997 to 2006, Annan saw as his greatest achievements the programs and policies he put in place to reduce inequality within and between countries, to combat infectious diseases and to promote human rights and protect civilians from war crimes including genocide.

He launched the U.N. Millennium Development Goals at a summit of world leaders in 2000 to cut extreme poverty by half, promote equality for women, ensure every child has a primary school education, reduce maternal and child mortality, and halt the spread of AIDS — all by 2015.

Those goals — only a few of which were fully achieved — were succeeded by an expanded list of U.N. Sustainable Development Goals for 2030 that adds issues such as climate action, affordable and clean energy, and promoting peace and justice. The updated list is a major focus of the U.N.’s current agenda.

As U.N. peacekeeping chief just before becoming secretary-general, Annan shared blame for the failure of U.N. troops he deployed to prevent the genocides in Rwanda in 1994 and in the Bosnian town of Srebrenica in July 1995.

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Renewable resort: Greek island to run on wind, solar power

TILOS, Greece (AP) — When the blades of its 800-kilowatt wind turbine start turning, the small Greek island of Tilos will become the first in the Mediterranean to run exclusively on wind and solar power.

The sea horse-shaped Greek island between Rhodes and Kos has a winter population of 400. But that swells to as many as 3,000 people in the summer, putting an impossible strain on its dilapidated power supply.

This summer, technicians are conducting the final tests on a renewable replacement system that will be fully rolled out later this year. It will allow Tilos to run exclusively on high-tech batteries recharged by a wind turbine and a solar park.

The European Commission says Tilos will be the first autonomous renewable green island in the Mediterranean. It plans to use the project as a blueprint for other small islands across the European Union that have limited grid connection to the mainland. The EU has largely funded the project, providing 11 million euros ($12.5 million) of the total 13.7 million-euro ($15.7 million) cost.

“The innovation of this program and its funding lies in the batteries — the energy storage — that’s what’s innovative,” project manager Spyros Aliferis said. “The energy produced by the wind turbines and the photovoltaics will be stored in batteries, so that this energy can be used for the grid when there is demand.”

___

AP Interview: Photographer documented 1968 Soviet invasion

PRAGUE (AP) — It’s been 50 years, but powerful images of the Soviet-led invasion of Czechoslovakia taken by photographer Josef Koudelka still resonate among Czechs and elsewhere in the world — they’ve even been admired in Russia.

As the armies of the five Warsaw Pact countries invaded his country an hour before midnight on Aug. 20, 1968, Koudelka was ready. Risking his life, he took thousands of photos in the week that followed, capturing the shocking experience for his nation — and the defiance of its people.

After the negatives were smuggled out of the country, the photos that were published in the West became one of the most famed documentary series of the 20th century.

Looking back at 1968 in an interview with The Associated Press, Koudelka said he seized the once-in-a-career opportunity.

“The opportunity to take so many photos made it possible for me to do something I never thought I would be able to do,” Koudelka said. “And I think that a majority of people in Czechoslovakia who knew me as a photographer didn’t even think I could do anything like that.”

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800,000 displaced in flooding in southern Indian state

CHENGANNUR, India (AP) — Some 800,000 people have been displaced and over 350 have died in the worst flooding in a century in southern India’s Kerala state, as authorities rushed to bring drinking water to the most affected areas, officials said Sunday.

At least two trains carrying about 1.5 million liters (400,000 gallons) of water were moving to the flooded areas from the neighboring states of Madhya Pradesh and Maharashtra, Indian railway official Milind Deouskar said, according to the Press Trust of India news agency.

One train arrived on Sunday, said P.H. Kurian, a top disaster management official in Kerala. However, he said the officials had largely restored the state’s water supply systems.

“What we need right now is bottled water, which is easy to transport to remote and isolated places, where some people are still stranded,” Kurian said.

Officials have called it the worst flooding in Kerala in a century, with rainfall in some areas well over double that of a typical monsoon season.

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Cyprus extradites Egyptian hijacker who dropped legal fight

NICOSIA, Cyprus (AP) — An Egyptian man who hijacked a domestic EgyptAir flight in 2016 and ordered it to land in Cyprus has been extradited to his homeland after giving up a drawn-out legal fight, authorities said Sunday.

Seif Eddin Mustafa was transferred to Egyptian custody and flown back to Egypt late Saturday, where prosecutors are investigating the incident. Cyprus Justice Minister Ionas Nicolaou told The Associated Press that Mustafa’s extradition went ahead after he dropped a three-year court battle to avoid extradition.

Mustafa had challenged extradition on the grounds that he could face torture or an unfair trial in Egypt.

Mustafa hijacked the EgyptAir flight in March 2016 using a fake suicide belt and diverted it to the Mediterranean island of Cyprus. A six-hour standoff with Cypriot authorities on the tarmac of Cyprus’ Larnaca airport ended peacefully after all 72 passengers and crew were released and Mustafa was arrested.

Mustafa told a Cypriot court that he meant no harm to anyone. He said he was trying to expose what he called the “fascist regime” of Egyptian President Abdel-Fattah el-Sissi and to help secure the release of 63 female dissidents being held in Egyptian prisons.

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Migrant spouse of pregnant woman detained on way to hospital

LOS ANGELES (AP) — A California woman said Saturday that she had to drive herself to the hospital and give birth without her husband after he was detained by immigration agents.

U.S. Immigration and Customs Enforcement officials said the man was detained because he was wanted on an outstanding arrest warrant in a homicide case in Mexico.

Maria del Carmen Venegas said she and her husband, Joel Arrona Lara, were driving to the hospital Wednesday when they stopped for gas in San Bernardino, just east of Los Angeles.

Surveillance footage shows two vehicles immediately flank the couple’s van after they pulled into the gas station. Agents with U.S. Immigration and Customs Enforcement questioned the couple and asked for identification, Venegas said.

Venegas, 32, said she provided hers but that Arrona had left his at home in their rush to the hospital. The surveillance footage shows the agents handcuffing the 35-year-old Arrona and taking him away, leaving a sobbing Venegas alone at the gas station.

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Movement encourages Argentines to quit Catholic church

BUENOS AIRES, Argentina (AP) — Hundreds of people gathered in Buenos Aires on Saturday to oppose the influence of religion on Argentine politics and encourage people to quit the Roman Catholic Church in the wake of a Senate vote not to legalize some abortions.

The event, called “Collective Apostasy,” centered on a signature drive for Argentines wanting to renounce their affiliation to the church through a form that will later be given to the Episcopal Conference in the homeland of Pope Francis.

People formed long lines in Buenos Aires and other Argentine cities, and organizers hoped thousands would officially register their desire that the church not interfere in Argentine politics and that their names be eliminated from its registries.

“We are receiving the apostasies of all the people who want to renounce their ties to the Catholic Church,” said one of the organizers, Maria Jose Albaya.

The movement is led by the Argentine Coalition for a Secular State and its backers often wear orange scarves.



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WALPOLE — When Norfolk County Agricultural High School students return to school this fall, they’ll find a striking new addition to the school grounds – a 50-foot-high wind turbine.

The turbine was assembled by students and staff as part of the Aggie Clean Energy Corps, which has been running throughout the summer. Twenty-nine students – including some from Framingham, Milford and Franklin – and three teachers participated in the program.

In its first year, the Corps is funded through a grant from the Massachusetts Clean Energy Center, said teacher John Lee.

“(The students) love it,” Lee said. “They’re outside, and they’re learning something they care about.”

The Skystream turbine – which was raised on July 18 – has generated 3 kilowatt hours of power so far, said Julia Lee. Julia, a student in the program and John Lee’s daughter, said she originally went to the school to work with plants, but shifted gears after electrical projects drew her attention.

“The wind turbine was the crowning moment,” she said, noting the project began during the school year and progressed into July. “It was all hands on deck.”

Fellow student Courtney Imbaro said she heard about the program during the winter, and that she had an intense interest in the topic. Imbaro, of Plainville, said working hands-on with the technology was helpful, as it allowed her to see how concepts taught in the classroom complement each other.

“They’re like puzzle pieces,” she said.

Though the wind turbine is the most prominent aspect of this summer’s work, other projects took place as well. Another looks to use solar energy to provide hot water to the school’s plant science and environmental science building. Walpole student Trevor Marshall said placing a frame for solar panels on an exterior wall proved difficult, as students had to secure it without hitting the water pipes on the other side.

Other students were at work placing solar panels on a model roof – something intended as a demonstration of the energy the panels can generate. Teacher Benjamin Polito said during a recent day’s activities that students were trying to figure out how to place the six panels on the roof.

“With any construction, nothing’s truly square,” he said, adding that the panels themselves needed an exactly square space.

John Lee said students suggested things that the array could power, including Christmas lights and an inflatable tube man. He noted that although the panels are not the newest available, they are still remarkably efficient when compared to older models.

The program has also taken the students on trips, Lee said, with one sending them to Rhode Island’s Block Island, which has a sizable offshore array of wind turbines.

“We took the students there to show them that this isn’t just theory – it’s working,” he said.

Julia noted that those turbines contribute to the environment in another way, as their bases act as a coral reef, creating a new underwater habitat.

Linda Radzvilla, the school’s vocational assistant principal, said she is pleased with the program’s presence at Norfolk Aggie.

“I’m beside myself – I think this is the best thing we could be doing,” she said. “This is really where we think the future workforce is going, but it’s also good for the planet.”

Mike Gleason can be reached at 508-316-2809 or mgleason@wickedlocal.com. For news throughout the day, follow him on Twitter @MGleason_MDN.

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black paper battery
Photo: Seokheun Choi

Suddenly, office paper is turning heads. Well, at least as far as electronics and batteries are concerned.

The explosive growth of miniaturized electronics and batteries to power everything from ingestible healthcare devices to sensors for intelligent transportation is driving innovation in how those devices are designed, and raising concerns over their environmental impact.

By some estimates, more than 50 billion electronic devices may be deployed during the next five years. Many will have a short working life, their fast obsolescence resulting in a disposal issue.

Enter papertronics, which offer electronics engineers the benefits of flexibility, sustainability, eco-friendliness, and low cost, as well as useful mechanical, dielectrical, and fluidic properties.

Seokheun Choi, associate professor in the Department of Electrical and Computer Engineering at the State University of New York at Binghampton, and his colleagues have created a paper-based, single-use battery that relies on bacteria both to generate an electric current and also to devour the battery at the end of its useful life.