Thursday, February 07, 2013

As renewable energy becomes cheaper, dirty coal power could soon be extinct

Alternative energy .
Australia is unlikely to build new baseload power stations burning coal because of tumbling prices for renewable energy and the rising cost of finance for emission-intensive fuels, according to research by Bloomberg New Energy Finance.
Even without a carbon price, wind energy is now 14 per cent cheaper than a new baseload coal-fired power station and 18 per cent cheaper than a new gas one, BNEF said in a new report.
"Nobody in their right mind would be building coal-fired power plants now"
The gap widens further when the carbon tax is added. Wind farms can now generate electricity at $80 per megawatt-hour, compared with $143 for a new coal power station and $116 for a new baseload gas power station.
An Western Australia,large-scale photovoltaic (PV) power stations are already cheaper than new coal-fired generating capacity, coming in at $157 per MWh compared with $190, BNEF said.
“It's very unlikely that new coal (power stations) would be built in Australia,” Kobad Bhavnagri, head of clean energy research for BNEF in Australia, said.
Aside from the carbon tax – which the Coalition has vowed to scrap if elected at the September 14 election - reputational and other risks associated with coal means developers will struggle to obtain low-cost funds for any new venture. The research included a survey of the country's big-four banks.
“Financing for coal would be made very expensive because of all the risks involved,” Mr Bhavnagri said.
“A bank would be quite conscious of financing a highly polluting asset,” he said. “That would likely make them susceptible to environmental activism.”
Demand sinks
Demand for electricity, meanwhile, continues to trend lower. Usage in NSW is at 10-year lows and Victoria at eight-year lows according to data for the December-January period, said Mike Sandiford, director of the Melbourne Energy Institute.
Electricity demand in the National Electricity Market is running about 16 per cent short of the amount regulators in the middle of the last decade expected current levels to be.

‘‘Nobody in their right mind would be building coal-fired power plants now,’’ Professor Sandiford said.
Rising electricity prices, a slump in manufacturing output and the spread of solar PV on residential roof tops are combining to sap power demand, he said.
"The signal is most clear in South Australia," Professor Sandiford said, with the number of houses in the state now approaching one in four residences.
Extending the state's trend of solar PV take-up over the past five years for another five years could see midday demand for power from the national grid drop to the low levels seen during early morning hours, he said.
"You've got 20 per cent coming from wind, and a high-level of PV now driving a big chunk of demand out of the middle of the day," Professor Sandiford said. "South Australia is a fascinating experiment."
Falling costs
BNEF estimates that the cost of wind generation has fallen by 10 per cent and the cost of solar PV by 29 per cent since 2011, and further technology advances will drive prices lower.
By 2020, wind power's cost per megawatt-hour will drop to $70 and then to $66 by 2030. The cost of large-scale solar PVs will drop to $97 for an equivalent amount of electricity and then to $87 10 years later, Mr Bhavnagri said.
The presumed advantage of gas, including its relatively low carbon emissions compared with coal, have been largely nullified by the liquid natural gas export boom which will force prices for the fuel higher.
“The perception that fossil fuels are cheap and renewables are expensive is now out of date”, said Michael Liebreich, chief executive of BNEF.
“The fact that wind power is now cheaper than coal and gas in a country with some of the world's best fossil fuel resources shows that clean energy is a game changer which promises to turn the economics of power systems on its head.”
While renewables are falling in price, they can't compete with Australia's existing coal-fired power stations built by state governments in the 1970s and 1980s, and whose construction costs have now been depreciated, BNEF said.
“New wind is cheaper than building new coal and gas, but cannot compete with old assets that have already been paid off,” Mr Bhavnagri said.
“For that reason policy support is still needed to put megawatts in the ground today and build up the skills and experience to de-carbonise the energy system in the long-term.”
The Climate Change Authority completed its review of the Renewable Energy Target scheme late last year and recommended retaining the key element - leaving unchanged the target for large-scale generators unchanged at 41,000 gigawatt hours of renewable energy per year by 2020.
The government has six months to respond.

Thursday, January 24, 2013

Population Target - Can there be too many Australians?

PEOPLE are overwhelmingly against a bigger Australia, almost three-quarters of us hoping the population does not hit the 40 million mark projected by 2050.
In a Galaxy poll of 1000 people for News Limited, the majority of respondents nominated 30 million people as the preferred mark.
There are currently 23 million people living in Australia.

One quarter of people said they wanted things to stay the same while 8 per cent wanted the population to shrink.
Only 13 per cent voted for 40 million citizens - the mark likely to be hit by 2050 - and 70 per cent hoped that wouldn't happen. Less than five per cent hoped for 50 million countrymen.
But former Treasurer Peter Costello, who famously urged parents to have a child for Australia, said people weren't considering the makeup of the growing population.
"When I encouraged families to have one for mum, one for dad, and one for the country, what I was drawing attention to was the fact that we are an ageing population," he said.
"To me one question is whether it should be a big Australia or a small Australia.
"A more important question is should it be a young Australia or an old Australia."
He said having a high percentage of retirees meant fewer taxpayers paying crippling tax rates.
The country would not be able to afford all its services like healthcare and welfare and economic growth and living standards would decline, he said.
"Whether the population is 20, 30, 50 or 100 million, what we need to do is we need to get a higher proportion of younger people," he said.
"We've got to keep our birthrates up if we want to have a balanced population of young and old people."
Mr Costello said the problem had been on the Howard Government's agenda but had been forgotten by Labor.
A spokeswoman for Population and Communities Minister Tony Burke said the Gillard Government did not have a population target but was working toward a "sustainable Australia".
"Population change is not only about the growth and overall size of the Australian population," she said.
"It is also about the needs and skills of our population, how we live, and importantly, where we live."
The right mix of services, jobs and education opportunities, affordable housing, amenities in cities, outer suburbs and regional areas were all an important part of that, she said.

http://www.couriermail.com.au/news/national/can-there-be-too-many-australians/story-fncyva0b-1226560486122

Thursday, January 10, 2013

Oculus Rift's Virtual Reality Headset Is Freaking Amazing







<strong>Oculus Rift</strong>


Virtual reality sounds almost quaint in these days of OLEDs and 4K and the Kinect and glasses-free 3D and all the other amazing ways we have now to experience and interact with games. But it's back in a very, very big way with the Oculus Rift, which I tested out today here at CES in Las Vegas.
Oculus started out as a hobbyist project from one Palmer Luckey - just a guy with an idea, taking apart smartphones and making what turned out to be a predecessor to the Oculus Rift. Luckey posted about his project on a forum, where it was found by gaming legend John Carmack, creator of Doom, Quake, Wolfenstein 3D and more. Carmack asked Luckey for a test unit, loved it, and became its biggest cheerleader, bringing it out on stage at the E3 gaming convention and even assisting with the development process. Then it landed on Kickstarter, where it made boatloads of money, and now it's here.
The unit I tested was a prototype; the screen, notably, was not the final screen that'll be used, and the team is working very hard to eliminate the (very minor) latency I experienced. The design, too, is a bit different. But what was so surprising and impressive about the Oculus Rift is that the thing actually works.


The Rift looks like a pair of ski goggles, more than anything else. Inside are two lenses, one for each eye, pointing at a single LCD display. (The final screen will be a 7-incher; the one I tested was 5.6 inches.) The screen delivers two separate images, one to each eye, so you get stereoscopic 3-D. Here's where it gets amazing: there are sensors in the goggles - accelerometer, gyroscope, that kind of thing - that are keyed into PC games. You turn your head and your vision moves just about perfectly with it - 360 degrees around, plus all the way up and all the way down. It is, by far, the most immersive interactive experience I have ever seen.
The Rift works (and will work) like a peripheral: you'll plug it into your computer and play PC games with it. It requires a pretty beefy gaming PC at the moment, but it's still a little ways off, so by the time it's released, its requirements will be less pricey. And the Oculus team is very concerned with creating a product that everyone can use, not just the folks with $3,000 liquid-cooled gaming PCs.
I played a game in which I was walking around a kind of medieval castle scene. I used an Xbox controller to move forward and backward - you stay seated while using the Rift - and turned by turning my head. It's impossible to really get across how world-shifting the Rift is; it's exactly like we'd dreamed virtual reality would be. You put on these goggles and you slip into a completely new world, in which your body movements respond pretty much the way they would in the real world. It's comfortable, too, and not particularly heavy, which I was worried about. Feels mostly like ski goggles.
The only problem I found was a tendency to move the rest of my body and not just the headset. If you lean to see around a corner, for example, which I did instinctively several times, the headset can't translate that into in-game movement. (The Oculus team noted that they're aware of this and plan on tackling it, though they wouldn't say quite how.) Then there's the issue of motion sickness, which is not a term Oculus uses - they prefer "disorientation" - but is real all the same. It's a little hard to tell if my nausea was caused by the Rift or by the fact that I was up until 3:30 AM playing poker, but the human body's interaction with such a complete perception replacement is not something to be taken lightly, I think. I suspect some people will react more poorly than others.


The distribution of games is also kind of a question mark, though that's not necessarily a bad thing. The Rift isn't a new kind of gamepad; it's an entirely new medium, a new way to experience games, and though ports are sort of possible and will definitely be released, that's not really what the Rift is made for. Sure, Call of Duty would be fun, but it's going to take a lot of development work to get new games out that really take advantage of this amazing hardware, not unlike what happened with the Microsoft Kinect. But John Carmack's involvement will help with that, and I think pretty much any developer that sees this thing will want to create amazing new stuff for it. Development kits are going out in March, so that work should start pretty soon, and the company is hoping to have consumer products out in the near future - like, this isn't a pie in the sky thing, this could well see release in 2014. Oculus tells me they're aiming for around a $300 price point, which is fair.
The Rift is certainly one of the most amazing things I've seen at CES this year - hell, in any year. It's not really possible to describe what it's like to use it, but as soon as I put the goggles on and turned my head, I think my mouth dropped. It's flat-out awesome.
 

http://www.popsci.com.au/gadgets/ces-2013-oculus-rift-s-virtual-reality-headset-is-freaking-amazing