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Comment on Week in review – Paris edition by brentns1

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When science can’t convince climate change deniers, some activists turn to God
“They know they will be measured against the encyclical,” Schellnhuber, a member of the Vatican’s Pontifical Academy of Sciences, said Saturday at a Catholic Church event. Ever the scientist, Schellnhuber said on Saturday he hadn’t seen any evidence yet during the first week of negotiations that this will happen, but he has faith it will
http://www.ctvnews.ca/sci-tech/when-science-can-t-convince-climate-change-deniers-some-activists-turn-to-god-1.2688841


Comment on Senate Hearing: Data or Dogma? by Duke Silver

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For that matter, why Leo DiCaprio or Mark Ruffalo? They seem to be frequent flyers for the Henny Penny team.

Comment on Senate Hearing: Data or Dogma? by Don Bishop

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If memory serves, Dr. Curry voted for Obama. This is not about politics.

Comment on Week in review – Paris edition by omanuel

Comment on Senate Hearing: Data or Dogma? by omanuel

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by Don Monfort

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by Kip Hansen

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Pumped hydro is a mature technology that has been used for decades. Existing pumped hydro facilities can be used to store any excess electrical power (or cheap power to be sold at a time when prices are higher).

NIMBYs nixed a project at Storm King Mountain, along the Hudson River, that would have alleviated the Great NY City Blackout had it been built and it would have been ready for the Green Energy revolution, to store all that solar and wind power.

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by wkernkamp

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You get only about 50% of the input electricity back with this system. (Thermal efficiency of the process is 67%. Then there are some turbine and pumping losses.)


Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by Curious George

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Where can I buy light bulbs that run on hot water? BTW, my water is heated by natural gas.

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by ordvic

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Thanks, Iowa will be a powerful boost. Polls don’t mean much now too volatile. ABH!

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by ristvan

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Sure. Solana max temp is 390C, pushing two small Siemans steam turbines net 125MWe each. Molten salt storage is only 6 hours, accomplished by a train of 6 two tank MSS systems (hot/cold, each of the 12 tanks ~122 feet in diameter and about 60 feet high (each tank 2.9 million gallons), total 135,000 tons of 60% sodium, 40% potassium nitrate). Footprint for 24 hours of storage far too large, and temperature too cold, for reconfiguring an old coal unit. Average of 40 year old US units is 116MW, about like new Solana. 24 hours storage would require 48 Solana tanks. Averge US old subcritical steam temperature is ~ 550C, not 390C. Square peg in round hole problems. Devil is in the engineering details.

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by Don Monfort

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The volatility is among the group fighting for second place. The Donald will start spending money when it counts. He is going to be hard to beat.

Comment on Week in review – Paris edition by Mark Silbert

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Justin,

Kotkin gets a lot right. He specifically addresses the conflicts between alarmist climate ideology and the needs of the American middle class in his latest book.

Kotkin is considered to be a conservative democrat (if such a thing still exists) but I wouldn’t expect to see him in a Democratic administration any time soon.

Comment on Week in review – Paris edition by omanuel

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by Svend Ferdinandsen

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If you read danish this blog is excellent by Henrik Stiesdal.
A prominent person in Siemens windpower group.
http://ing.dk/blog/jamen-hvad-kommer-det-dog-til-koste-178745
He suggests thermal storage in sand or the like, but heated with a compressor, making some 25% more heat than the electricity to drive the compressor. (A sort of heat pump).


Comment on Senate Hearing: Data or Dogma? by omanuel

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by aaron

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Mr. Swan,

It is a good idea to consider and at least should lead to creative thinking that may lead to other innovations. Given that the available supply of coal in the US far excedes the useful life of plants and the engineering concerns raised in above comments, we shouldn’t be giving up on coal. The toxic aspects of burning coal can be controlled fairly easy and I would expect a significant backlash against the misapplication of the overly broad EPA charter in placing constaints on GHG’s, which can’t be attributed to direct impacts on regional weather. Even the indirect effects through the well mixed global atmosphere can’t be shown to affect regional weather and health on a meaningful level.

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by aaron

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by Don Monfort

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Seemed interesting, so I took a look. Discovered I don’t read Danish. Except, I assume “vind” means wind. Same as in India.

Comment on Can Coal-Fired Plants be Re-Powered Today with Stored Energy from Wind and Solar? by -1=e^iπ

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“Peter you obviously do not believe that a sustainable energy future based upon renewables is possible.”

It’s possible, just has a very large price tag.

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