quinta-feira, 15 de outubro de 2015

1366 Bets on Silicon Wafer Innovation with New Solar Plant

 

 

New method for making silicon wafers enables 1366 Technologies to survive and expand

By Richard Martin on October 14, 2015

 

Why It Matters

Declines in component prices are making solar power nearly as cheap as coal-fired plants.

1366 CEO Frank van Mierlo presents New York governor Andrew Cuomo with a custom silicon wafer at an event announcing the company’s plans to build a commercial-scale factory in Genesee County.

Solar wafer maker 1366 Technologies has survived the carnage in the U.S. solar manufacturing industry over the last five years. Now the company, which uses a novel technology for making the silicon wafers used in most solar cells, is embarking on its next phase, building a large manufacturing plant in upstate New York (see “Solar Survivor”).

Founded by MIT professor Ely Sachs in 2008, the startup said last week that it will build its first commercial-scale factory in Genesee County, near Rochester. The plant will cost around $100 million and will initially produce about 50 million wafers annually, equivalent to 250 megawatts of power-generation capacity. Eventually, says CEO Frank van Mierlo, 1366 (which is named for the “solar constant,” the amount of solar energy that reaches Earth, in watts per square meter) hopes to reach three gigawatts of annual production at the Genesee plant, supplying silicon wafers to a solar industry that’s growing rapidly in North America, Europe, and the developing world. The Massachusetts-based company says it was lured to New York, as opposed to building in China, through a combination of state incentives, access to cheap hydro power, and the desire to make its products in the United States.

The booming market for residential solar and the rising demand from developing countries including India, which has committed to building 100 gigawatts of solar capacity in the next seven years, is driving a comeback for solar manufacturing in the U.S. (see “India’s Energy Crisis”). SolarCity’s planned factory, also being built in upstate New York, will have a gigawatt of production capacity when fully operational at the beginning of 2017 (see “Paying for Solar Power”). Last month, the U.S. unit of China-based Seraphim Solar Manufacturing said it will open a new solar factory in Jackson, Mississippi, that will reach one gigawatt of capacity by 2018. In Hillsboro, Oregon, SolarWorld Americas is spending $10 million to expand its factory, currently the largest solar PV production facility in the Western Hemisphere.

A 1366 technician works in a lab at the company’s Bedford, Massachusetts, demonstration facility.

Conventional factories produce silicon wafers via a multistep process of sawing, polishing, and slicing that wastes close to half of the silicon. Led by Sachs, who stepped aside as the company’s chief technology officer earlier this year, 1366’s team of several dozen engineers devised a way to make wafers directly from molten silicon, producing wafers for half the cost of traditional methods and dramatically reducing the amount of wasted silicon. The 1366 process also uses one-third the energy to produce each wafer. While the concept of producing wafers from molten silicon is not original to 1366, the company is the first to develop a production technology that can be expanded to commercial scale.

In addition to a loan guarantee of $150 million from the U.S. Department of Energy that was made in 2011, the company will receive about $97 million in grants and tax incentives from the state of New York. Van Mierlo says 1366 has binding agreements for 60 percent of the plant’s production; he won’t name customers but says they are concentrated mostly China and Taiwan.

However, 1366 still has to raise additional funds to build the Genesee facility. Van Mierlo says that “90 percent of that is secured at this point,” and that discussions are underway for the remaining $10 million.

The state investment is part of New York governor Andrew Cuomo’s strategy of turning upstate New York into a major manufacturing hub for the solar industry. The state is investing $750 million to build the SolarCity plant, which it will lease back to the Silicon Valley company, essentially for free. Cuomo, who attended the 1366 launch event on November 7, called the 1366 announcement “a game changer” for New York’s tech sector and the U.S. solar industry.

The track record of solar manufacturing companies built largely on public funding is not encouraging. But 1366 has survived so far in part because of its frugality. “The first line in a Dutch cookbook,” says van Mierlo, a U.S. citizen who was born in the Netherlands, “is ‘borrow an egg.’”

 

http://www.technologyreview.com/news/542416/1366-bets-on-silicon-wafer-innovation-with-new-solar-plant/

Biggest elephant killed in Africa for almost 30 years brings back memories of Cecil the lion

 

 

Gonarezhou National Park.

It was shot on October 8 in a private hunting concession bordering Gonarezhou by a hunter who paid $60,000 (£39,000) for a permit to land a large bull elephant and was accompanied by a local, experienced professional hunter celebrated by the hunting community for finding his clients large elephants.

The German national, who the hunt’s organisers have refused to name, had travelled to Zimbabwe to conduct a 21-day game hunt including the Big Five of elephants, leopards, lions, buffalo and rhinoceros.

The kill was celebrated in hunting forums around the world, where it was suggested he might have been the biggest elephant killed in Africa for almost 30 years.

Conservationists and photographic safari operators in the area expressed their outrage on Thursday night, saying the animal was one of a kind and should have been preserved for all to see.

Anthony Kaschula, who operates a photographic safari firm in Gonarezhou, posted pictures of the hunt on Facebook, said the elephant had never been seen in the area before but would have been celebrated by visitors and locals alike.

Largest elephant Shot in the Last 50 years, this old bull aged 60plus has tusks 122 pounds heavy Lucky hunter and zimbabwean guide hunt booked through take aim safaris website

Posted by Game Animals of the Past and Present on  Tuesday, 13 October 2015

“We have no control over poaching but we do have control over hunting policy that should acknowledge that animals such as this one are of far more value alive (to both hunters and non-hunters) than dead,” he wrote.

“Individual elephants such as these should be accorded their true value as a National Heritage and should be off limits to hunting. In this case, we have collectively failed to ensure that legislation is not in place to help safeguard such magnificent animals.”

Unlike Cecil, the black-maned lion beloved by tourists who was shot by American dentist Walter Palmer in Hwange National Park using a bow and arrow in July, the animal’s origin was not immediately known.

It was speculated that he might have come up from South Africa, since there is no border between the Kruger National Park and Gonarezhou, which form part of the Great Limpopo Transfrontier Park created by former South African president Nelson Mandela.

Some suggested that the elephant might be a massive bull called Nkombo, who was a satellite collared elephant from the Kruger who lost his collar in 2014. Nkombo was however spotted in the Kruger on October 3, making it unlikely that he would have completed a journey of several hundred miles in five days.

William Mabasa, of South Africa’s National Parks, said Kruger’s elephant experts were looking into the case. “If this elephant came up from the Kruger, he would have had to go through all the communities on the edge of Gonarezhou and someone would have seen him. It’s not possible.”

Louis Muller, chairman of the Zimbabwe Professional Hunters & Guides Association, said the hunter had only realised how large the “tusker” was once he had been shot.

"He told me when he and his client were stalking this elephant he saw the tusks were big but did not realize just how big until afterwards and he saw them close. He is going back to see if he can find the lower jaw and bring it back so we can accurately age this elephant,” he told The Telegraph.

"We checked everywhere and this elephant has never been seen before, not in Zimbabwe nor Kruger. We would have known it because its tusks are huge. There have been five or six giant tuskers shot in the last year or so, and we knew all of them, but none as big as this one.”

He said his organisation had suggested that unique elephants should be collared to protect them from hunting. “We have suggested before to all concerned parties that each elephant area should collar a few with biggest tusks, so that we do not shoot them,” he said. "Nobody responded to our suggestion last year. We believe this might now be taken seriously.”

The man who helped arrange the hunt, who did not want to be named, defended his client. “This was a legal hunt and the client did nothing wrong,” he said. “We hunters have thick skins and we know what the greenies will say. This elephant was probably 60 years old and had spread its seed many many times over.”

He said his organisation paid as much as 70 per cent of its hunting fees back to the local community and observed quotas for animals. “This is good for Zimbabwe and good for local people,” he said. “It’s not uncommon for hunters to spend $100,000 (£64,551) each trip.”

Meanwhile Zimbabwe National Parks has called for stiffer penalties for poachers following the discovery on Tuesday of 26 more elephant carcasses that died of cyanide poisoning at two different locations in the Hwange National Park.

Cyanide poisoning is a growing problem in the country since a mass poisoning in October 2013 resulted in up to 100 deaths.

The 26 elephants were discovered by rangers following another discovery last week of 14 other elephants, also poisoned to death by cyanide.

 

http://www.telegraph.co.uk/news/worldnews/africaandindianocean/zimbabwe/11934535/Huge-tusked-African-elephant-killed-by-german-hunter-in-Zimbabwe.html

 

Empresa lança software pioneiro para 'piloto automático' em carro elétrico

 

 

Dave Lee Repórter de Tecnologia da BBC News

  • Há 53 minutos

Getty

Image caption Dois modelos fabricados pela Tesla contarão com o novo software

A fabricante americana de carros elétricos Tesla lançou uma atualização para o software de seus veículos que possibilita que os carros tenham um modo "piloto automático".

O carro não será totalmente independente, mas o novo software faz com que carro Model S e o novo Model X possam "automaticamente se orientar por uma estrada, mudar de pista e ajustar a velocidade em resposta ao trânsito" à sua volta.

O presidente da Tesla, Elon Musk, afirmou que o modo piloto automático foi criado para aumentar a confiança do motorista.

Mas Musk acrescentou que os motoristas que adotarem o novo software, disponibilizado na América do Norte a partir desta quinta-feira, devem ser cautelosos no uso do programa.

"Esperamos que (o carro) não atropele pedestres. (O software) Deve lidar bem com eles", afirmou Musk para jornalistas.

O presidente da Tesla já esclareceu que, se o carro se envolver em um acidente, o motorista ainda será responsabilizado.

"O motorista não pode abdicar da responsabilidade. Isto virá em algum momento no futuro", disse.

As informações sobre o uso do novo software em outras regiões do mundo serão atualizadas nas próximas semanas, dependendo de aprovação e regulamentação local.

Câmeras e sensores

Imagem: Tesla

Image caption O piloto automático combina sensores, câmeras e mapas para determinar a posição do carro (Imagem: Tesla/Divulgação)

O novo software da Tesla usa uma combinação de câmeras, radares, sensores e dados de mapeamento para determinar a posição do carro e como deve ser a navegação.

Leia também: Empresa promete 'revolução' com baterias para residências

Quando o carro tiver chegado ao destino, poderá escanear o espaço disponível e estacionar sozinho.

Diferente dos projetos do Google, que visam um veículo totalmente autônomo, o plano da Tesla é gradualmente fazer com que o software assuma funções que antes eram do motorista.

Atualmente existem limitações ao software que, segundo Musk, serão resolvidas.

"Se há muita neve será mais difícil o sistema funcionar, então é melhor ter cautela. Essencialmente é como uma pessoa - como uma pessoa pode descobrir que rota deve pegar. Com o tempo, será melhor que uma pessoa", disse.

"No longo prazo será muito melhor que uma pessoa. Nunca fica cansado, nunca bebe nada, nunca está discutindo com outra pessoa dentro do carro. Não tem distrações."

Outros fabricantes de carro, como a BMW e a Volvo, também estão desenvolvendo e implementado funções que concedem graus de autonomia a seus carros.

E o carro totalmente automatizado da Google já percorreu mais de 1,6 milhão de quilômetros, a maior parte na Califórnia.

Leia também: Google vai virar montadora e fabricar carro que dirige sozinho

 

http://www.bbc.com/portuguese/noticias/2015/10/151015_piloto_automatico_tesla_fn

Pinterest trabalha para transformar a audiência em receita

 

 

A rede social Pinterest

Pinterest: o crescimento maior está fora dos Estados Unidos

São Paulo — Os fãs de redes sociais podem até fazer questão de postar no Facebook a notícia de que vão se casar ou vão fazer o aniversário do filho. Mas é em outra rede, o Pinterest, que muitos deles buscam inspiração para a festa. A especialidade do Pinterest é o conteúdo visual. À medida que navegam, os usuá­rios guardam imagens em seu perfil.

Pode ser a fotografia de um evento, de um destino turístico, de uma roupa diferente, de uma pintura ou até a capa de um livro. A cada dia são incluídos 14 milhões de novos links — chamados de pins (alfinetes). Ao todo, o site tem uma biblioteca de 50 bilhões de pins. “O que é especial sobre o Pinterest é que todo o conteúdo passou pela escolha de uma pessoa, não de um algoritmo.

Por isso, muita gente gosta de buscar inspiração nele quando está planejando um evento ou a mudança da decoração da casa”, afirma Debra Aho Williamson, analista de marketing digital e mídias sociais da consultoria eMarketer, com sede em Nova York. Entre as redes sociais, o Facebook é o único que ainda mantém o modelo que deu origem a esse segmento.

É um espaço em que as pessoas têm um perfil para publicar o que quiserem e para se conectar com amigos e familiares. Com quase 1 bilhão e meio de usuários, o site é líder disparado em audiência.

O segundo pelotão de redes sociais é formado por plataformas que fizeram sucesso exatamente porque passaram a oferecer serviços especializados — do Instagram, que reúne as fotos tiradas por seus usuários, ao Twitter, que atua­liza informações de forma instantânea. Nesse grupo, o Pinterest tem sido um destaque.

Há três anos, só perde para o Instagram em termos de aumento do número de usuários em todo o mundo. No mesmo período, foi o que apresentou o maior ritmo de crescimento no Brasil. Quase 15% dos usuários de internet brasileiros uti­lizam o Pinterest — sete vezes mais do que em 2012 —, nível próximo ao do LinkedIn (18%), de acordo com a consultoria GlobalWebIndex, com sede em Londres.

“O crescimento está alinhado a uma tendência de diversificação das redes sociais”, diz Jason Mander, ­presidente da GlobalWebIndex. Os números comprovam o sucesso do Pinterest? Depende do indicador que se olhe. Do ponto de vista de audiência, o site vem crescendo acima da média e está no seleto grupo das seis maiores redes sociais de usuários, à frente do LinkedIn.

Isso se traduz numa estimativa elevada de seu valor de mercado, na casa dos 11 bilhões de dólares, de acordo com a última rodada de investimentos. É um número que impressiona — mas é o mais baixo na comparação com as demais redes sociais. O valor do Facebook é de 256 bilhões de dólares;o do Instagram, 35 bilhões; o do LinkedIn, 24 bilhões; e o do Twitter, 16 bilhões.

A menor avaliação se explica: o Pinterest é a única das grandes redes sociais que ainda não provou ter um modelo de negócios sustentável. O site começou a vender anúncios somente no ano passado e apenas nos Estados Unidos.

Não divulga o faturamento, mas a estimativa da empresa de investimentos americana Wedbush Securities é que deva chegar a 500 milhões de dólares em 2016, menos de um quinto da previsão para o Twitter. A estratégia global do Pinterest tem sido atrair cada vez mais empresas, especialmente varejistas que vendem produtos relacionados às suas categorias mais populares, como decoração, moda e saúde.

“As pessoas buscam imagens de coisas que têm interesse em comprar, praticar ou fazer. Se conseguir aproveitar isso, o site pode ganhar muito dinheiro”, diz Williamson, da eMarketer. A marca mais popular no Pinterest hoje é a loja de departamentos americana Nordstrom. Seu perfil tem 4,4 milhões de seguidores e é usado para divulgar fotos de produtos.

As roupas e os objetos de decoração mais populares na rede social são marcados com um logotipo do Pinterest nas lojas físicas. No Brasil, as grandes varejistas ainda têm uma presença tímida na rede social das imagens. Entre elas, os perfis mais populares são o da Lojas Renner e o da C&A, do segmento de moda, e o da Tok&Stok, de móveis e decoração.

Mas, juntas, não chegam a 13 000 seguidores. A experiência de maior impacto, por enquanto, tem sido a de empresas menores, como a Elo7, site de venda de objetos de decoração e artesanato. É a marca brasileira mais popular, com 80 000 seguidores. “O Pinterest é uma das redes sociais que mais mandam visitantes para nossa plataforma de vendas ”, diz Carlos Curioni, presidente do Elo7.

Diferentemente de pequenas empresas, as redes têm uma estratégia de divulgação multifacetada — e ainda não viram no Pinterest um canal atraente. A audiência global de 100 milhões de pessoas do Pinterest impressiona, mas, de acordo com a consultoria Comscore, sua taxa de visitas é a mais baixa entre as grandes redes sociais. Nesse quesito, o Brasil não é diferente.

Em média, cada usuário brasileiro visita o Pinterest 2,8 vezes por mês — no Twitter, o número é de 4,6; no Facebook, de quase 20. Um dos principais desafios do Pinterest hoje é aumentar o engajamento, especialmente em países fora dos Estados Unidos, que representam 45% da audiência.

No Brasil, o site abriu um escritório e tem adaptado o mecanismo de buscas para o português para dar mais relevância ao conteúdo local. Que ninguém duvide: o Pinterest quer ficar bem na foto.

 

http://exame.abril.com.br/revista-exame/edicoes/1099/noticias/pinterest-trabalha-para-transformar-a-audiencia-em-receita

Test Facility Begins Capturing Carbon from Air

 

 

Pilot plant in Canada tries to demonstrate carbon capture on an industrial scale.

By Richard Martin on October 9, 2015

 

Why It Matters

Direct-air carbon capture could lead to carbon-neutral transportation fuels.

Carbon Engineering’s air contactor passes ambient air through liquid to produce a carbon dioxide-rich solution.

On Friday a group of government officials, environmentalists, and local bigwigs gathered in the coastal town of Squamish, British Columbia, about an hour north of Vancouver, to mark the onset of what could one day be a new industry: creating carbon-neutral transportation fuel made from carbon dioxide captured from air.

The company that built the plant, Carbon Engineering, was founded by a Canadian scientist named David Keith. A Harvard professor of applied physics, Keith has made headlines before for his outspoken advocacy for more research into geoengineering (specifically, seeding the lower stratosphere with sulfuric acid to reflect sunlight and cool the planet). With the carbon capture venture, though, Keith is being careful not to overhype his company’s technology: while Carbon Engineering’s process should be able to strip carbon dioxide out of the air at a rate of around one ton per day, Keith emphasizes that it’s not designed for or capable of measurably reducing the greenhouse gases in the atmosphere. Rather, the motivation is to produce fuels for transportation applications, such as jet aircraft and heavy-duty trucks and buses.

The process uses a large wall of fans, known as a contactor, to push air through a liquid that reacts with the CO2. That carbon dioxide-rich solution is then put through several processing steps to create a purified stream of CO2 gas and the liquid that is returned to the contactor. Keith and his team have cleverly combined industrial processes that are already in use in existing industries, for instance in paper mills.

This is not new technology,” says Keith.

It’s also only half the process needed to actually make fuel. The recovered CO2 must then be combined with hydrogen to make hydrocarbon fuels. Supported by funding from British Columbia’s provincial government, Carbon Engineering plans to install an electrolyzer to split water to obtain hydrogen that it will then use to supply fuel for BC Transit buses. That’s at least a year down the road.

A component is delivered to the pilot plant site in Squamish, British Columbia.

The full system is relatively energy-intensive, which means that cheap, low-carbon power generation, most likely from solar power, will eventually be needed to make the energy economics work.

Carbon Engineering, which has been funded by a series of investors including Bill Gates, is one of several companies, including the German firm Climeworks, working on carbon capture systems. (Most of them employ systems in which the CO2 is absorbed by a solid, rather than a liquid.) In the past these technologies have been touted as having the potential to significantly reduce the total amount of carbon in the atmosphere, thus slowing down global climate change. For now that’s a pipe dream; for one thing, as with systems that capture carbon from the smokestacks of fossil fuel power plants, it’s simply too expensive for the massive scale-up that would be required. What’s more, the systems require much energy to operate.

An active market for fuels made with air-captured CO2 would go a long way toward making the economics work out, at least for small-scale systems. Burning the fuel made in this way would, of course, release carbon, but unlike the combustion of fossil fuels it would not add to the total amount of carbon dioxide in the atmosphere. The cost of producing fuel at the Squamish pilot plant, once it’s fully operational, will be much higher than that of conventional fuels, but Keith says that, once the process is scaled up using solar power, he hopes to produce fuel for $1 a liter. (Jet fuel currently sells for around 37 cents per liter; diesel, for just under $1 per liter.) That could happen in a few years, or it might never happen; but the plant opening in Squamish will begin testing the possibility.

“This whole topic has been polarized more than anything else I’ve worked on,” Keith says. “I hope we can move to a world where people treat this like a normal technology. It’s not a silver bullet, but it’s not B.S. either.”

 

http://www.technologyreview.com/news/542226/test-facility-begins-capturing-carbon-from-air/