Showing posts with label Solar Power. Show all posts
Showing posts with label Solar Power. Show all posts

Thursday, August 02, 2007

Solar cost-prohibitive? Buckyballs to that

clipped from www.engadget.com
Engadget
Researchers develop "paint-on" solar cells

The quest to builder a better, cheaper solar cell continues on, as researchers at the New Jersey Institute of Technology have developed a new type of solar cell that can be printed or painted onto flexible plastic sheets. Unlike traditional silicon cells, the print-on cells are composed of carbon nanotubes and buckyballs, which results in substantially cheaper manufacturing costs and greater efficiency, since apparently carbon nanotubes are terrific conductors. The scientists seem pretty pumped about the potential for their tech, with lead researcher Somenath Mitra quite confidently proclaiming that we'll all soon be printing "
sheets of these solar cells with inexpensive home-based inkjet printers." Yeah, we're sure there won't be any shenanigans going on in that ink cartridge market.

Sunday, July 29, 2007

Greening the Big Blue

Cleantechblog offer some tantalising speculation about IBMs move into the solar cell business. Greenwash, or clean-up? We will have a better idea within the next eighteen months.

We were talking on a range of topics, but one that piqued my interest was the description of IBM’s work in photovoltaics – and a few thoughts on where they were going. I did not ask, and he did not offer, any particulars on the work in progress, but he did make mention of a few points that I thought were well worth repeating:
  • IBM is expecting to be a player in the solar cell business – likely seeing commercial impact in the next 18 months to two years.
  • IBM is developing both advanced crystalline technologies and CIGS processes – relying on their semiconductor manufacturing expertise and nanotech research to make breakthroughs in controlling PV manufacturing processes.
  • You will not likely see IBM making branded modules – perhaps instead a cell production business strategy?
  • IBM sees the potential for very high efficiency multi-junction cells in foreseeable future.
The fascinating part is that IBM is not a newcomer to the game.

Saturday, June 09, 2007

Global warming survival guide

Just in Time.

clipped from www.time.com
The Global Warming Survival Guide
Next button

GLOBAL WARMING

51 Things We Can Do to Save the Environment

Can one person slow global warming? Actually, yes. You—along with scientists, businesses and governments—can create paths to cut carbon emissions. Here is our guide to some of the planet's best ideas.



More Stories

Graphic: Effects of Climate Change by 2020

A forecast of how climate changes will impact the environment and society by mid century.

Graphic: The Earth Friendly Home

Are you wasting energy? There are ways you can alter your lifestyle to reduce your carbon footprint, the measure of carbon you produce




Bookmark this page and tell your everyone you care for about it.

Thursday, May 10, 2007

Myth busted: Cheap-coal powered electoral-cycles

The Liberal Government budget 2007 has been described as clever politics, but we live in a time that demands clever policies based on sound climate science. Not the clever politics of election year electoral largess.

Admittedly, the government can afford the splurge; Costello has provided good economic management, and all credit to him. But John Howard still hasn't communicated that he understands that the economy is but a system within a bigger system, and one that is under chronic, unsustainable stress, exactly as a result of how we fuel the economy. Dave Sag captures my sentiments. :::[Carbon Planet Bog]

In a follow-up article Greenhouse gas program disappointing, the Sydney Morning Herald also reports:

The budget contained tax incentives for people who want to offset their greenhouse gas emissions by investing in purpose grown forests and confirmed speculation people would be able to receive an $8000 rebate towards the cost of installing rooftop solar hot water systems.

There was also $43 million for the CSIRO to set up a climate change adaptation centre and $50 million for a program to pay farmers for carrying out environmental programs on their land.

This money is chicken-feed compared to the investment really needed to avert disaster. Where are the serious funds for solar energy research? Where are the real incentives to get people out of their cars and onto bikes and footpaths? Where’s the money to promote localised food supplies and energy efficiency? How about a massive upgrade of the nations rail systems? Australia has a massive war-chest of cash and the government is pissing it away buying votes in a time of crisis. — DS


This budget communicates that, as far as the government is concerned, we are stuck with the consequences of coal, because coal makes for cheap electricity with which to power our cities, industry and lifestyles.

Well, no, actually. That begs the question of whether coal really is cheap. Coal isn't that cheap. In fact, it was revealed today that the government subsidises and supports coal fired power plants, some by more than what they return in profits. :::[SMH: Public purse props up fossil fuel industries]

Government support for the coal industry and coal-fired electricity is so generous that in some cases it has led to the construction of coal-fired power plants when other types of electricity generation would have been cheaper, the report by the Institute for Sustainable Futures at the University of Technology Sydney has found.

Subsidies to fossil fuel energies, worth close to $10 billion, result in a serious market distortion, create an unfair disadvantage to renewable energy, and help increase greenhouse gas pollution, says the report, written by the institute's research principal, Chris Riedy, and commissioned by Greenpeace.

The report identified energy and transport subsidies in Australia during 2005-06 of between $9.3 billion and $10.1 billion. More than 96 per cent of that money flowed to fossil fuel production and consumption, with the remainder going to renewable energy and energy efficiency.

"This effectively creates an uneven playing field for renewable energy, making it much more difficult to respond to climate change in the energy and transport sectors," the report says. "Fossil fuel subsidies can increase greenhouse gas emissions because they reduce the price of fossil fuel energy, which encourages greater use of fossil fuels and higher levels of greenhouse gas emissions."

So, no, we are not stuck. The solution is simply stop the corporate-welfare, and let these electricity generation companies compete in the real world. One where the cost of carbon is picked up by the electricity companies now, not by our kid and grandkids. Myth busted.


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Tuesday, May 08, 2007

Tonight's Australian Government budget leaked to Greens

And they don't like it.
clipped from www.smh.com.au

The Federal Government will spend nearly $20 billion over the
next five years on environmental measures, according to the
Australian Greens.

The Greens claimed they have been leaked details of the budget
in what would be a sensational breach of security of the
tightly-held documents.

According to a detailed document the Greens have received, $2.4
billion of the $10 billion water plan has been allocated over the
next four years. This includes more than $900 million to buy back
water licences and more than $1 billion to fund more efficient
water infrastructure.

The document also confirms that the solar rebate program would
be extended for five years at a cost of about $150 million.

The Greens said the Government spending figures show that the $4
billion would constitute less than half what the Government spends
on "handouts" to the fossil fuel industry during a mining boom.

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Monday, May 07, 2007

Could Spanish cities run on tower power?

Holy Toledo Batman (well actually Seville), check out the solar tower:
clipped from www.engadget.com

Just last month we witnessed a gigantic skyscraper / solar tower hybrid that generates a whopping 390-kilowatts of energy, but even that looks like child's play compared to the 40-story solar power plant that resides in Spain. The expansive system consists of a towering concrete building, a field of 600 (and growing) sun-tracking mirrors that are each 120-square meters in size, and a receiver that converts concentrated solar energy from the heliostats into steam that eventually drives the turbines. Currently, only one field of mirrors is up and running, but even that produces enough power to energize 6,000 homes, and the creators are hoping to see the entire population of Seville (600,000 folks) taken care of solely from sunlight. So if you're eager to see what's likely the greenest solar power plant currently operating, be sure to slip on some shades, tag the read link, and peep the video.

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More information on The Spanish Tower of Power:

:::[Energy Planet Blog >> Solar Power Tower]

More information about concentrating solar power (CSP) may be found at:

:::[TREC: Trans-Mediterranean Renewable Cooperation]
:::[TREC-UK]

Wednesday, May 02, 2007

Solar breakthrough: households can power grid

Australia's future energy may be secured by a grid of good, old fashioned, trusty nuclear. Nuclear families, that is, and the roofs over their heads linked into a giant electranet, if the following breakthrough in photovoltaic cells holds true to its market promise.
clipped from www.theage.com.au
Researchers at the University of New South Wales ARC Photovoltaics Centre of Excellence have developed a means of increasing the cell's light-trapping ability by up to 50 per cent.
Such improvement to an electric solar system could power an average house with panels covering 10 square metres.
"Overall, our new solar cells increase power generated by 30 per cent," said Dr Kylie Catchpole, co-author of the study.

Prices for an installed solar system for an average house could fall 25 per cent from $20,000 to $15,000 once the technology filters through, the researchers say.

There are only 30,000 Australian households - out of eight million - which have solar panels for electricity.

If this solar system is used with a solar heating system for water and cooking, the excess power generated can be sent back to the power grid.


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Sunday, April 29, 2007

Aussies voters wooed with green and gold

I predicted early on that global warming is going to be a major factor in the Australian federal elections planned for the end of this year. Last week Prime Minister John Howard belatedly recognised this in attempting to divert the focus away from AGW and onto economic management, when he claimed that, "climate change is not the overriding moral challenge for Australians". Then he contradicted himself by clearing the way for a nuclear powered future, using global warming mitigation as his Trojan horse.

This weekend Labor pressed on with its perceived electoral advantage, announcing a policy to subsidise home generated solar energy for households earning under $250,00 per year by way of interest free loans. One big benefit of this approach, to my mind, is that it would stimulate a local solar and renewable energy industry.
clipped from www.smh.com.au

Labor loans for green homes

Phillip Hudson
April 29, 2007 - 12:22PM


About 200,000 households will be able to get cheap loans of up to $10,000 from a Labor Government to install solar panels, water tanks and other ''green'' climate friendly devices, Labor leader Kevin Rudd promised today.

Announcing the $300 million policy at the ALP national conference in Sydney, Mr Rudd said it was a practical ''bread and butter'' plan to help families earning less than $250,000 a year to make their homes more energy and water efficient.

He claimed the policy could generate up to $2 billion worth of green inspired investment and work for small business, especially tradespeople.

He said it would cut up to $800 a year from household energy and water bills and ''increase the value of their homes''.


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Sunday, April 15, 2007

At last! Al Gore planning to run...

..his house on solar power. I think it is great that the Get Gore campaign got Gore going. When it comes to walking-the-talk, he is running - emissions-free, from his manor. So thinks Green Options:

Sign seen in front of Al Gore's mansion in the posh Belle Meade section of Nashville Thursday, indicating Gore is moving forward with plans for solar panels to help power his mansion. Here's a link to the the Belle Meade Board of Zoning Appeals meeting agenda - there are no details on the size of the solar panels, how much power they'll generate, or whether or not they'll be tied into the grid via a "net metering" arrangement so Gore can sell excess power to the grid through a "net metering" arrangement.

by Ecotality blogger Bill Hobbs

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Wednesday, March 21, 2007

Uni NSW research harnesses sea, sun for hydrogen fuel.

University of NSW researchers have been working on a revolutionary technology that uses sunlight to split sea water into hydrogen fuel, and water. It could be developed within a decade, and take another five years to be commercialised. But this is how long nuclear plants take to be built, and hydrogen fuel has two advantages - it's unlimited when sourced from seawater, and 100% clean, with water as the only by-product. It is yet-to-be-developed, but then so is the so-called 'clean-coal' saviour technology that the Howard government is pinning all our futures on.

Best of all it decentralises energy production. :::[SMH]

Leigh Sheppard, of the University of NSW, estimated that 1.6 million of the solar devices, installed on rooftops, would be able to produce enough hydrogen gas to supply Australia's entire energy needs.

He believes, "It is the cleanest, greenest energy option for a sustainable economy.".

Its technique relies on using a light sensitive material, titanium dioxide, to harness the power of the sun to split water into oxygen and hydrogen gas. "The process has the additional advantage that it works best in sea water," Dr Sheppard said.

Australia was rich in titanium, and had abundant sunshine. "And we are surrounded by ocean."

It might also be possible to use artesian water, or pump sea water inland, to a large array of solar panels which could produce hydrogen for local use and even for export.

An area covering 40 square kilometres would meet the country's energy needs.

The process is safe because it mimics nature.

The small UNSW team, led by Professor Janusz Nowotny, is a world leader in using titanium dioxide as a catalyst to split water. The researchers have developed instruments which can measure the electrical properties of the material so they can improve its performance by altering its oxygen content or adding impurities.

A visiting German solar expert, Helmut Tributsch, of the Free University in Berlin, said research was urgently needed into ways to covert the sun's power into usable energy, such ashydrogen fuel and photovoltaic electricity. Professor Tributsch said water splitting was a process nature used to harness the sun's energy. "We should really follow the example of nature. It is the only safe way to handle our environment in the long term."

Hydrogen was a clean and efficient fuel for powering everything from vehicles to furnaces and air conditioning. "When you burn it, it gives water, so there is no pollution of the environment," he said.

Professor Tributsch will give a public lecture on solar energy at the university on Monday night.

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Tuesday, March 20, 2007

Garrett: Put economy first by addressing climate change

Federal Parliament ALP member, Peter Garrett, places global warming in an economic context, looking at the positive and negative implications: :::[SMH: Economy put at risk by climate inertia]

Last week Michael Molitor, the principal of CarbonShift (a wholesale supplier of voluntary carbon units) and a former director of climate change services at PricewaterhouseCoopers, described the opportunity in this way: globally, we will need to prevent 600 billion tonnes of carbon emissions that will otherwise accumulate in the atmosphere over the next 43 years in order to stabilise atmospheric concentrations at or below 500 parts per million.

Using a low average abatement cost of $25 a tonne creates a capital-market opportunity of $15 trillion. This would be the largest global financial market opportunity in history. The question Australia needs to answer is: how much of that $15 trillion is coming our way?

And how do we get our hands on some of it? Well, something has to change.

Unfortunately, after a decade of inaction on climate change, the Howard Government has been left standing at the docks waving goodbye to Australian jobs, investment and technology. Last week the Australian company Global Renewables announced a $5 billion deal with Britain's Lancashire County Council and Blackpool Council. The Lancashire project aims to cut greenhouse pollution by more than 4 million tonnes.

Global Renewable has had to go to Britain to realise its ambitions.

Four weeks ago another Australian company, Pacific Hydro - which has 1800 megawatts of clean energy assets around the world - announced its move into Brazil. Why?

Because according to its general manager, Rob Grant, the growth in Australian clean energy assets has been held back by Australia's decision to not sign the Kyoto Protocol. The company is looking internationally for investment opportunities in countries that are enacting positive policies to reduce greenhouse gas emissions and address global warming.

Zhengrong Shi, an academic from the University of NSW who was unable to realise his ambitions to develop solar technology in Australia, moved his business to China, where he is now that nation's third-richest man. His technology is helping reduce China's emissions. It is not beyond the realm of possibility that in a few years we might have to import these technologies, which were developed in Australia, from China. We should not be in the business of exporting jobs, technology or our brightest and best minds.

Peter's solutions are to create jobs developing and manufacturing the technologies for clean coal, biomass, solar and wind. And that we set up a carbon trading system as soon as possible.

We need climate change policies that will make Australia a regional hub for emissions trading and clean energy. Federal Labor has a suite of policies that will not only drive down our emissions but also create jobs in regional and rural Australia and open up the market potential of carbon trading.

He concludes with an indication of how Labor will be positioning itself on climate change in the yet-to-be-announced-but-already- campaigning election.

The Prime Minister insists that dealing with climate change is an either/or proposition: either we cut emissions or we grow the economy. The fact is we can and must do both.

How refreshing to hear, after all Howard's initial global warming denial, then his denial of the anthropogenic component, then his complete abandonment of the question to concentrate on some yet-to-be-developed saviour technology, and his dodgy Switkowsky report on nuclear.

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Thursday, February 01, 2007

Still the Lucky Country

Somewhere along the way over these last ten years, I lost that feeling that comes with buying into to the sentiment that Australia is the Lucky Country. I felt we had surrendered the title in Kyoto. But c'mon ozzy, how spoilt rotten am I? It's not like we're the really unlucky country.

I looked up how much we had worth in energy resources:

Coal

We have 73 billion tonnes of identified in situ black coal resources, enough to last over 200 years at current rates of export, according to the Australian Coal Association. That is $A4.9 trillion worth. A tidy nest-egg.

In 2005 we exported 30% of the world's coal. And 30% of the global resultant carbon dioxide emissions. Not so cool. It's a bit like crapping in your nest.

Anyway...

Before returning to upbeat, I do want to point out that it is this externalised cost that we have to factor in - the coal we export today that comes back to us in debilitated climate in our 50th annual reporting cycle. The Stern Report reckons that unchecked rates of carbon dioxide emissions will set our global economy back by 25% by then.

Using this measure our coal nest-egg is really only worth $3.6 trillion.

Still. That's good. Maybe not quite up there with the big swinging dicks, but certainly "relaxed and comfortable". Mission accomplished down under.

Uranium

Call me old fashioned... I think we should be keeping all our uranium reserves our own bloody secret, not telling India and China how much we have! Indian army: 890,000 active troops, ranking at #3. Chinese army: 1.7 million active troops, ranking at #1. Australian army: 54,000 active troops, ranking #68. Think I am chicken, punk? No. of countries in this picture that posess nuclear weapons: 2. Do you think one of those two is us?

Shhhhh.Walk around quietly, hide the size of your stick. Don't sell sticks.

Not a fair treatment of the subject of uranium? Ok, here are more serious estimates:

Australia boasts something like 40% of the world's uranium, or 28% of recoverable reserves depending whose statistics you read.

Coal will last us 200 years. Australia has enough uranium to last... well, one global newclear war, really. In economics this is known as a trade externality, and in the military, as blowback.

Solar energy

All I can find on Google is this quote, which I believe to be accurate since Dr Davis Mills told it to Kerry O'Brien on the 7:30 Report tonight:

The amount of solar energy hitting Australia in one summer day is about half the total annual global energy use! Prof. Martin Green

In 2004 the worldwide energy consumption of the human race was estimated as 15 TW by the United States Energy Information Administration.[1](TW=1012 Watts). We export 30% of the the world's coal at $24.5 billion per annum. Coal provides 3.5 TW annual energy globally. Extrapolating out, the world's coal market is worth $81.7 billion p.a., and the world's total energy bill (minus externalities) is worth four times that at $326.8 billion in coal terms.

My rock-climbing logic gets me to this heady summit -- the amount of solar energy hitting Australia is worth about $163.4 billion, with no externalities, in one summer day!

Ah, that lucky country feeling is starting to come back again. As if we couldn't harness the solar energy if we set our minds to it? We are so bloody ingenious a nation that we give away our best civilising innovations and innovators, mainly to California. Like the blackbox flight recorder, the car-radio, and the refrigerator.

And, Dr David Mills.

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Saturday, September 16, 2006

Solar to power world's poor out of poverty

We are going to have to think our way out of our global warming predicament. Greenpeace and the European Photovoltaics Industry Association have developed a way to eliminate our greenhouse gas emissions and help fight world poverty:

TEL AVIV, Israel, Sept. 14 (UPI) -- By 2025, nearly 2 billion people around the world will be able to get their electricity from solar power, according to a new report by Greenpeace and the European Photovoltaics Industry Association.

In perhaps more surprising news, more than 1.6 billion of those people now have no access to electricity at all.

Though installing photovoltaic systems, which convert sunlight into electricity through a chemical reaction, in these poor, rural areas is already cheaper in most cases than extending the national grid to them, few countries have ventured into solar so far.

The report, called Solar Generation, cites Brazil and India as exceptions. So how will the world go from a handful of solar projects to 1.6 billion solar users in less than 20 years?

"It's a two-step strategy," said European Photovoltaic Industries Association Communications Officer Marie Latour, speaking to UPI by telephone from France.

The solar boom will "start from grid-connected technology supported by (government) policies like the feed-in tariff system, and these markets will enable the takeoff of the rural solar market by reducing the cost of the modules," Latour said.

Feed-in tariffs are payments for solar energy -- in places such as California and Germany, utilities pay customers with solar panels for the electricity they provide to the grid.

According to the study, the numbers look like this: "By 2025, PV systems could be generating approximately 589 terawatt hours of electricity around the world."

The International Energy Agency predicts that world electricity demand will be about 23,000 terawatt hours in 2025.

Greenpeace International Renewables Director Sven Teske told UPI that "in 35 to 40 years, PV could deliver 15 percent of the world's electricity production."

He said this would be mostly from household use, as photovoltaic systems are decentralized by nature.


Using lateral thinking to come up with a smart and practical approach to reducing the mutually-reinforcing problems of world poverty and GHG emissions is the sort of thing we need more of.

==
Mood: Pensive: This is more the direction I am going to take with this blog, and I think I am going to find interesting stuff happen in the business world, which is greening faster than an advanced AGW spring. Just reporting the bad news gets depressing. And slaying skeptics? There's not that much value in doing it for me - it's just sport - but if readers learn about how these people work they can fight their pernicious crap.

Read more: :::[Solar World: Report predicts a bright future]

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