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A few sites I've stumbled across recently....

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Bloomberg New Energy Finance's latest sermon:-

"Shale gas-inspired price falls are "wishful thinking""

"Bloomberg New Energy Finance says UK will not see US-style plummeting gas prices as costs will be higher and planning will take longer"

"Shale gas might seem to offer a new dawn of low energy prices for the UK. Our analysis suggests such hopes should be treated as wishful thinking," said Guy Turner, head of economics and commodity research at BNEF.

http://www.businessgreen.com/bg/news/2249746/report-shale-gasinspired-price-falls-are-wishful-thinking

Feb 22, 2013 at 8:35 AM | Registered CommenterGreen Sand

The Greens are totally opposed to removing anything that can be mined. So they loved the Australian Government's mining tax hoping that it would hurt the big mining conpanies BHP-Billiton, Rio Tinto etc. The tax was originally estimated to "raise" $7.8billion but has so far has only raised a paltry $126million. The Greens have therefore stomped their feet and withdrawn from the coalition with the Labor government.

Joe Hildebrand, a commentator on Sky gives his calm and reasoned assessment of the Australian Green's position.

Would Joe get a gig with the BBC?

Feb 21, 2013 at 1:23 PM | Registered CommenterGrantB

Thank you Phillip

Feb 21, 2013 at 12:35 PM | Registered CommenterMartin A

Martin A:

Google "vestas elsam lifetime assessment" and download the file. It is site specific, ie dependent on turbine location, capacity factor, distance from manufacturer etc etc.

Feb 21, 2013 at 10:21 AM | Registered CommenterPhillip Bratby

The impending power cuts that will probably happen on cold still days must be a big worry for the windmill operators since windmills need energy to keep them cosy when its frosty. If they cannot rely on the grid for power presumably they will be incorporating some backup into their plans. Does anyone know if windfarms have backup generators?
John Lyon

Feb 21, 2013 at 9:53 AM | Unregistered Commenterjohn Lyon

Where can I find information on ratio between the energy needed to manufacture and install a wind turnbine and the energy it delivers during its lifetime?

Feb 21, 2013 at 9:37 AM | Registered CommenterMartin A

Meanwhile Ed Davey in today's Telegraph is spreading falsehoods about the reality of how windfarms get permission and are subsidised:

Mr Davey also responded to suggestions that communities have been bribed into accepting wind turbines in their areas and that incentives offered to wind energy companies have a distorting market effect.

“Wind developers don’t get any money or subsidies if they do not generate. If they are as bad as some people say, they will go bust,” he said. “It’s almost as if people think these people are getting rich with wind turbines that are not going around. Not true.”
Source: http://www.telegraph.co.uk/earth/earthnews/9883808/Heritage-sites-of-national-significance-under-threat-from-wind-farms.html

The bribe to stifle community opposition to our local windfarm (SSE's Griffin) is over £300,000 p.a. split between the 5 community council areas adjacent to the windfarm.

The total payments made to UK windfarm operators when the machines are parked due to high winds amounted to over £34 million in 2011. Wind farms given £34m to switch off in bad weather: Households stung by secretive payments.

Feb 21, 2013 at 9:27 AM | Registered Commenterlapogus

Energy consumption in wind facilities

Here's another link to that article.

Feb 21, 2013 at 8:54 AM | Registered CommenterRobin Guenier

Brownedoff/lapogus/SandyS

On Tuesday, I asked Phillip Bratby for his view on that now “under maintenance” Energy consumption in wind facilities article. I noted that, after listing various ways in which wind turbines can consume electricity (I wish I’d kept a copy), the author asks this:

Could it be that at times each turbine consumes more than 50% of its rated capacity in its own operation?! If so, the plant as a whole -- which may produce only 25% of its rated capacity annually -- would be using (for free!) twice as much electricity as it produces and sells. An unlikely situation perhaps, but the industry doesn't publicize any data that proves otherwise; incoming power is apparently not normally recorded.

I asked Phillip: surely that can't be true - or can it?

His reply:

I've tried unsuccessfully to determine all the energy consuumption sources of wind turbines and whether it is metered in any way. The best estimate that I could come up with was that for a Vestas 3MW turbine operating at a capacity factor of 25%, 10% of the total electricity generated (claimed for RO subsidy) would be consumed by the turbine.

Feb 21, 2013 at 8:40 AM | Registered CommenterRobin Guenier

Feb 20, 2013 at 8:23 PM | SandyS

Just tried your link but they must not want the info. promulgated for some reason, maybe.

Sorry! We're under maintenance.

We are making some updates to the site. We'll be back soon, thanks for your patience.

I will bookmark it and try again later.

Feb 21, 2013 at 8:04 AM | Unregistered CommenterBrownedoff

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