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The Climate Spectator reports that Silexs long delayed CPV plant for Mildura in Victoria may at last be moving ahead - All Systems go.

Silex Systems has finally secured formal agreement from the federal government to continue the $75 million of fund granted to a proposed 152MW concentrated solar project in Mildura. The fate of the grant had been in some doubt, because the company that originally received the grant, Solar Systems, went bankrupt in late 2009 before being bought by Silex early in 2010. Silex says the grant – combined with $50 million in funds from the Victorian government – will enable the company to progress to a 2MW pilot plant, then a 100MW demonstration project that could be expanded by a further 50MW at a later date.

Silex says it has refined and solved many of the technical difficulties that had plagued the original project, and which had forced the company into receivership because its shareholders, which include TRUenergy and several private, either couldn’t or wouldn’t provide more funds. The unique dense array concentrating PV technology is said to be deal for large commercial and utility-scale solar projects, and Silex says the Mildura facility has the potential to be of the one of the largest and most efficient solar power stations in the world.

Silex says it continues to investigate opportunities to construct utility-scale solar plants in Australia and US, as well as growth opportunities worldwide. The $75 million of Commonwealth funding was announced in 2006 as part of the Low Emissions Technology Demonstration Fund. The Federal Government has further assisted the project with a $4.5 million grant under the Asia Pacific Partnership on Clean Development and Climate, of which approximately $1.9 million was transferred to Solar Systems.

Renewable Energy World has a report on a CPV project in New Mexico - San Diegos New CPV Solar Giant.

With a 150 MW project planned in San Diego and a 25-year PPA in place, CPV has at last entered the commercial arena. Standing in the New Mexico desert, a 1 MW Concentrating Photovoltaic (CPV) power plant is establishing a route for the emergence of this utility-scale technology. Installation of this first pilot commercial deployment began in the summer of 2010 and the plant was commissioned early in 2011, with official inauguration in April.

Located on the tailings site of Chevron Mining Incs (CMI) molybdenum mine in Questa, New Mexico, some 2000 metres above sea level in an area of the US noted for its high levels of Direct Normal Irradiance (DNI), its developers say the project will demonstrate the technology as well as a practical use of previously impacted land. Electricity produced from the installation will be sold to the Kit Carson Electric Cooperative, through a power purchase agreement.

Covering some 20 acres (8 ha) the site has 173 CPV modules, each of which has an area of about 18 by 21 feet (35 m²) and is pole mounted on dual axis trackers supplied by a major manufacturer. The Concentrix technology uses Fresnel lenses to concentrate sunlight almost 500 times onto high efficiency multi-junction PV cells. With this technology, Soitec claims to achieve AC system efficiencies of 25% and more, significantly higher than currently available conventional solar PV technology, and as a result, cost reductions of 10%-20% could be reached, depending on the location of the installation, it says. ...

CPV systems are typically more efficient than conventional solar systems at locations with both high ambient temperatures and dry weather conditions. Because of the very low temperature coefficient of its solar cells, a CPV systems performance is much less affected by temperature than other photovoltaic technologies. Another key advantage of CPV technology is the very low levels of water required for operations, essentially used in cleaning only, a crucial consideration for the water-constrained regions to which it is suited, such as the Imperial Valley, which is some 150 miles (230 km) from the coast.

Indeed, such technology is expected to work best in areas with higher DNI like northern New Mexico and southern California, as well as in north and southern Africa, the Middle East, and much of China and India. Certainly, in 2010 Soitec announced that it had joined the Desertec Industrial Initiative (Dii) as Associated Partner and Medgrid as a founding member, in the expectation that the decision will pave the way to utility-scale CPV projects in the Middle East and North Africa (MENA).

The SMH has a report on last years arctic ice melt - UN sounds alarm on record Arctic ice melt.

The Arctics sea ice melted at a record pace in 2012, the ninth-hottest year on record, compounding concerns about climate change underscored by extreme weather such as Hurricane Sandy, the UN weather agency says. In a report on the situation in 2012, the World Meteorological Organisation said on Thursday that during the August to September melting season, the Arctics sea ice cover was just 3.4 million square kilometres. That was a full 18 per cent less than the previous record low set in 2007.

WMO Secretary-General Michel Jarraud dubbed it a "disturbing sign of climate change." "The year 2012 saw many other extremes as well, such as droughts and tropical cyclones. Natural climate variability has always resulted in such extremes, but the physical characteristics of extreme weather and climate events are being increasingly shaped by climate change," he said. "For example, because global sea levels are now about 20 centimetres higher than they were in 1880, storms such as Hurricane Sandy are bringing more coastal flooding than they would have otherwise," he added.

Jeffrey Sachs has a column in The Business Spectator noting that a major reason for the economic morass Europe and the US are in is globalisation, and that policy needs to change from tax cuts to tax increases for the rich and increased investment in the future - Adrift on global market currents.

A failure of economic strategy and leadership lies behind the near simultaneous collapse of market confidence in the eurozone and US economies. No need to blame the ratings agencies: governments in Europe and America have been unable to cope with the realities of global capital markets and competition from Asia – and deserve the lion’s share of the blame.



I’ve watched dozens of financial crises up close, and know that success means showing the public a way out that is bold, technically sound and built on social values. Transatlantic leadership is falling short on all counts. Neither the US nor Europe have even properly diagnosed the core problem, namely that both regions are being whipsawed by globalisation.



Jobs for low-skilled workers in manufacturing, and new investments in large swaths of industry, have been lost to international competition. Employment in the US and Europe during the 2000s was held up only by housing construction stoked by low interest rates and reckless deregulation – until the construction bubble collapsed. The path to recovery now lies not in a new housing bubble, but in upgraded skills, increased exports, and public investments in infrastructure and low-carbon energy. Instead, the US and Europe have veered between dead-end, consumption-oriented stimulus packages and austerity without a vision for investment.



Macroeconomic policy has not only failed to create jobs, but also to respond to basic social values too. Let me be clear: good social policy does not mean running big deficits. Public debts are already too large in both Europe and the US. But it does mean a completely different balance between cuts to social services and tax increases on the rich.



The simple fact is that globalisation has not only hit the unskilled hard but has also proved a bonanza for the global super-rich. They have been able to invest in new and highly profitable projects in emerging economies. Meanwhile, as Warren Buffett argued this week, they have been able to convince their home governments to cut tax rates on profits and high incomes in the name of global tax competition. Tax havens have proliferated even as the politicians have occasionally railed against them. In the end the poor are doubly hit, first by global market forces, then by the ability of the rich to park money at low taxes in hideaways around the world.



An improved fiscal policy in the transatlantic economies would therefore be based on three realities. First, it would expand investments in human and infrastructure capital. Second, it would cut wasteful spending, for instance in misguided military engagements in places such as Iraq, Afghanistan, and Yemen. Third, it would balance budgets in the medium-term, in no small part through tax increases on high personal incomes and international corporate profits that are shielded by loopholes and overseas tax havens.

The Guardian has an interview with Nicholas Stern - Nicholas Stern: I got it wrong on climate change – its far, far worse.

Lord Stern, author of the government-commissioned review on climate change that became the reference work for politicians and green campaigners, now says he underestimated the risks, and should have been more "blunt" about the threat posed to the economy by rising temperatures.

In an interview at the World Economic Forum in Davos, Stern, who is now a crossbench peer, said: "Looking back, I underestimated the risks. The planet and the atmosphere seem to be absorbing less carbon than we expected, and emissions are rising pretty strongly. Some of the effects are coming through more quickly than we thought then."

The Stern review, published in 2006, pointed to a 75% chance that global temperatures would rise by between two and three degrees above the long-term average; he now believes we are "on track for something like four ". Had he known the way the situation would evolve, he says, "I think I would have been a bit more blunt. I would have been much more strong about the risks of a four- or five-degree rise."

He said some countries, including China, had now started to grasp the seriousness of the risks, but governments should now act forcefully to shift their economies towards less energy-intensive, more environmentally sustainable technologies.

"This is potentially so dangerous that we have to act strongly. Do we want to play Russian roulette with two bullets or one? These risks for many people are existential."

Stern said he backed the UKs Climate Change Act, which commits the government to ambitious carbon reduction targets. But he called for increased investment in greening the economy, saying: "Its a very exciting growth story."

The NYT has an article on electric bike riding in Switzerland - Over the Alps on a Bike With a Boost. I had one of these things overtake me (startlingly quietly) as I was riding up a hill last week - they are looking quite sleek nowadays.

THE road east out of Sörenberg rears up into a series of steep turns that climb the Glaubenbielen Pass, the high point of a road the Swiss Army punched through the Alps more than 60 years ago. Though the occasional car and bus make the journey to the top, these days much of the road belongs to cyclists.

On a cool afternoon in mid-July I was one of them. I hadn’t ridden much all season, yet something primordial kicked in when I spied another biker just ahead. His calf muscles were swollen like Salamanca hams, and he was stooped over the bars, sweat dripping onto the pavement.

Easy pickings, I thought, as I tore after him. Within moments I’d reeled him in. He, gasping; me, hardly out of breath: I felt, well, guilty. “You’re cheating!” he panted in German as I sped by. “You’ll be out of power soon!”

He was right: I was cheating. With the mash of a button on my handlebars, a 250-watt electric motor had spun to life and increased the power of my pedal strokes by 150 percent. Suddenly I had my own domestique, a 26-volt brute that seemed to grab the saddle and shove me onward every time I pedaled. In a few minutes, I had reached the summit, taken a short walk and realized that cycling big Alpine passes with some breath to spare might not be such a bad way to cheat.

Here in the United States electric bikes are slowly becoming more popular — you can, for instance, take e-bike tours in San Francisco and Napa Valley. In Europe, the trend is more developed with robust rental schemes in places like Britain’s Lake District, Versailles and Amsterdam. But it is the Swiss who have embraced the concept with the most imagination.

For 50 Swiss francs a day, about $62 at $1.25 to the franc (with discounts for multiple days), you can rent an electric bike from one of 400 rental stations around the country and then set out on some 5,600 miles of well-marked bike paths. With hundreds of places along the way to obtain fresh batteries free, you don’t need to be a whippet-thin racer to roll for days through the spectacular Swiss hinterlands — up steep mountain passes and past soft meadows, burbling creeks and curious cows. You’re free from unforgiving train schedules and away from the tourist hordes but still have access to all the traditional Swissness you can take at inns and restaurants along the way. And since sweating is cheap, a famously expensive country just became a little more affordable.

The Long Now has a post noting that the Long Bet about peak travel in the US has been won by Glen Raphael, who bet that there would be more passenger miles travelled in 2010 than there were in 2005 - Long Bet on Peak Travel.

The challenger - me - appears to have won the bet. But it was a real squeaker! The total was roughly 3 trillion miles for both years and there was a period of decline (associated with war and financial crash) in between that gave me a scare but 2010 finished slightly ahead.

http://www.fhwa.dot.gov/ohim/tvtw/10dectvt/page2.cfm (the december 2010 report) gives total vehicle miles traveled for the year as:

2005: 2,989,395
2010: 2,999,634

So 2010 was more, but it was very very close. See also this press release:

http://www.dot.gov/affairs/2011/fhwa0311.html

"Nation’s Highway Traffic Reaches Highest Level Since 2007"

The San Francisco Chronicle has an article on the geothermal power boom in Indonesia - Chevron Bets on $30 Billion Volcanoes in Indonesian Rainforest.

Chevron Corp. drilled 84 wells to a depth of two miles beneath the Indonesian rainforest to tap steam, not oil and gas, thats trapped in the worlds richest store of volcanic energy.

The geothermal plant, set among wild orchids and bamboo trees, uses 315 degree Celsius (600 degree Fahrenheit) heat to spin turbines 24 hours a day, generating electricity for Jakarta, a four-hour drive to the north. The oil driller, which pioneered geothermal energy 20 years ago in Southeast Asias biggest economy, is about to see competition.

Companies from General Electric Co. to Indias Tata Corp. are leading an investment boom in Indonesia that may climb to more than $30 billion, anticipating President Susilo Bambang Yudhoyono will honor his promise in February to boost clean- energy subsidies. The pledge has spurred the biggest geothermal spending spree in Asia and the largest outside of the U.S.

Technology review has a look at research into how to increase the penetration of renewable energy into national electricity grids - A Sneak Peek of the National Grid on Renewables.

A new $135 million research facility aims to solve a puzzle: how can countries prepare for an energy system that relies heavily on renewable energy? It can also test ways to improve reliability under stress, for example when demand soars in the summer as the air-conditioning load taxes the grid.

Because wind and solar energy supply power intermittently, they create challenges for grid operators. Other new energy technologies are coming online, too, including electric vehicles, energy storage, efficient buildings that cut power use during peak times, and small-scale natural-gas generators and fuel cells. Integrating these technologies on a large scale presents challenges to grid operators.

The National Renewable Energy Laboratory (NREL) in Golden, Colorado, created the Energy Systems Integration Facility (ESIF) to understand how to best operate the pieces of a more diverse energy system. Drawing on a supercomputer and power equipment that can create a megawatt-scale mini-grid within the facility, product engineers and utilities can simulate the impact of new technologies without causing problems to functioning grids.

Regions with a high percentage of wind and solar now rely on daily forecasts and stand-by fossil-fuel power plants to maintain reliable service. But once renewable energy is more than 20 percent of capacity, grid planners need more sophisticated tools, says Benjamin Kroposki, director of energy systems integration at NREL. “We saw this big shift. If we are successful in reaching cost targets for individual technologies, then what? You need to start doing systems integration,” he says.

An NREL analysis published last year found that, with a more flexible system, the U.S. could get 80 percent of its electricity from existing renewable energy technologies by 2050 (see “The U.S. Could Run on 80 Percent Renewable Electricity by 2050”). Germany and Denmark already have about 20 percent renewable electricity and Germany plans to achieve around 80 percent renewable energy, in both electric power and transportation, by 2050.

The Business Insider has an article about a new French tidal power project being built by Irish company OpenHydro - Work Starts On The Worlds Largest Tidal Energy Project.

French utility giant Electricite de France is collaborating with Irish marine technology company OpenHyrdro to build the worlds largest tidal power station — essentially a giant underwater wind farm — off the northern coast of France (via Industrialinfo.com).

The new 8-megawatt facility consists of four tidal turbines and will be capable of generating enough energy to power around 4,000 homes. The first turbine was completed at the end of August and will undergo a series of tests before being installed on the subsea base at Paimpol-Bréha.

The project, which commenced work in 2008, will cost around €40 million ($56.5 million) and is expected to go live in 2012.

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Ian McPherson points to this recent video from NASA on global temperatures - NASA finds 2011 9th warmest year on record.

The global average surface temperature in 2011 was the ninth warmest since 1880, according to NASA scientists. Nine of the 10 warmest years in the modern meteorological record have occurred since the year 2000.

Earth2Tech reports Tesla CEO Elon Musk is looking forward to a breakthrough in energy storage using capacitors - Tesla CEO: I’d Bet On Capacitors Over Batteries.

Tesla’s CEO Elon Musk says he bets that it could be capacitors — rather than batteries — that deliver an important breakthrough for electric transportation. “If I were to make a prediction, I’d think there’s a good chance that it is not batteries. But capacitors,” said Musk at the Cleantech Forum in San Francisco on Wednesday.

Capacitors, or ultracapacitors, are energy storage devices that can deliver quick bursts of intense power and can withstand more charge and discharge cycles than batteries. They’re like batteries, and can be used in complement with batteries.

But it’s interesting that the CEO of a company that bases its technology around standardized, small format, lithium-ion batteries would make such a comment. Perhaps Tesla is doing some R&D on capacitor storage deep in its Palo Alto, Calif. labs?

The original reason Musk came out to California years ago was to do research on advanced, high energy density capacitors at Stanford, and to try to leverage what Musk said was tens of billions of dollars of R&D that’s been applied to capacitors for advanced ship making. But then, that whole Internet thing and PayPal happened. And then Tesla (and SolarCity and SpaceX).

Musk says he’s optimistic there will be a solution found by one or another companies in the capacitor space that “will supercede,” batteries. The capacitor companies I’ve written about include Ioxus, which makes ultracapacitors for transportation in complement with batteries; EEstor, which seems like it’s not ever going to deliver anything; Recapping, which is backed by Khosla Ventures and won an ARPA-E grant; and EnerG2, which makes materials for ultracapacitor makers.

Bruce Schneier has an article in The Atlantic on the power struggle going on for control of the internet and its increasingly feudal social structure - The Battle for Power on the Internet.

We’re in the middle of an epic battle for power in cyberspace. On one side are the traditional, organized, institutional powers such as governments and large multinational corporations. On the other are the distributed and nimble: grassroots movements, dissident groups, hackers, and criminals. Initially, the Internet empowered the second side. It gave them a place to coordinate and communicate efficiently, and made them seem unbeatable. But now, the more traditional institutional powers are winning, and winning big. How these two sides fare in the long term, and the fate of the rest of us who don’t fall into either group, is an open question—and one vitally important to the future of the Internet.

In the Internet’s early days, there was a lot of talk about its “natural laws”—how it would upend traditional power blocks, empower the masses, and spread freedom throughout the world. The international nature of the Internet circumvented national laws. Anonymity was easy. Censorship was impossible. Police were clueless about cybercrime. And bigger changes seemed inevitable. Digital cash would undermine national sovereignty. Citizen journalism would topple traditional media, corporate PR, and political parties. Easy digital copying would destroy the traditional movie and music industries. Web marketing would allow even the smallest companies to compete against corporate giants. It really would be a new world order.

This was a utopian vision, but some of it did come to pass. Internet marketing has transformed commerce. The entertainment industries have been transformed by things like MySpace and YouTube, and are now more open to outsiders. Mass media has changed dramatically, and some of the most influential people in the media have come from the blogging world. There are new ways to organize politically and run elections. Crowdfunding has made tens of thousands of projects possible to finance, and crowdsourcing made more types of projects possible. Facebook and Twitter really did help topple governments.

But that is just one side of the Internet’s disruptive character. The Internet has emboldened traditional power as well.

On the corporate side, power is consolidating, a result of two current trends in computing. First, the rise of cloud computing means that we no longer have control of our data. Our e-mail, photos, calendars, address books, messages, and documents are on servers belonging to Google, Apple, Microsoft, Facebook, and so on. And second, we are increasingly accessing our data using devices that we have much less control over: iPhones, iPads, Android phones, Kindles, ChromeBooks, and so on. Unlike traditional operating systems, those devices are controlled much more tightly by the vendors, who limit what software can run, what they can do, how they’re updated, and so on. Even Windows 8 and Apple’s Mountain Lion operating system are heading in the direction of more vendor control.

I have previously characterized this model of computing as “feudal.” Users pledge their allegiance to more powerful companies who, in turn, promise to protect them from both sysadmin duties and security threats. It’s a metaphor that’s rich in history and in fiction, and a model that’s increasingly permeating computing today.

The Washington post reports on the latest Snowden NSA revelations, this time about backdoors into big internet companies like Google and Yahoo not be considered sufficient so theyve worked out the weak points in the company internal networks as well - SSL Added and Removed Here! :).

The National Security Agency has secretly broken into the main communications links that connect Yahoo and Google data centers around the world, according to documents obtained from former NSA contractor Edward Snowden and interviews with knowledgeable officials.

By tapping those links, the agency has positioned itself to collect at will from hundreds of millions of user accounts, many of them belonging to Americans. The NSA does not keep everything it collects, but it keeps a lot.

According to a top-secret accounting dated Jan. 9, 2013, the NSA’s acquisitions directorate sends millions of records every day from Yahoo and Google internal networks to data warehouses at the agency’s headquarters at Fort Meade, Md. In the preceding 30 days, the report said, field collectors had processed and sent back 181,280,466 new records — including “metadata,” which would indicate who sent or received e-mails and when, as well as content such as text, audio and video.

The NSA’s principal tool to exploit the data links is a project called MUSCULAR, operated jointly with the agency’s British counterpart, the Government Communications Headquarters . From undisclosed interception points, the NSA and the GCHQ are copying entire data flows across fiber-optic cables that carry information between the data centers of the Silicon Valley giants.

The infiltration is especially striking because the NSA, under a separate program known as PRISM, has front-door access to Google and Yahoo user accounts through a court-approved process.

The MUSCULAR project appears to be an unusually aggressive use of NSA tradecraft against flagship American companies. The agency is built for high-tech spying, with a wide range of digital tools, but it has not been known to use them routinely against U.S. companies.

Yes, right here on Friday, April 6. This is your personal invitation to suggest blog posts on mathematics at any level – your own or someone elses you especially liked. Posts on theoretical computer science or mathematics in other sciences are also welcome.

For more information, see here.

To contribute, just send me a note here: carnival AT scienceandreason.net. Please put "Carnival of Mathematics" in the Subject line, and respond by 6PM PDT on April 5. You can also use this form.

Even if you have nothing to submit, check back here April 6 to see what bloggy mathematicians are up to.

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