« ALEA Home | Email msg. | Reply to msg. | Post new | Board info. Previous | Home | Next

Re: Krugman on Solar Power

By: faul in ALEA | Recommend this post (0)
Thu, 17 Apr 14 1:00 PM | 94 view(s)
Boardmark this board | The Trust Matrix
Msg. 15398 of 54959
(This msg. is a reply to 15397 by Cactus Flower)

Jump:
Jump to board:
Jump to msg. #

"approximately 80 tonnes of silver are required to generate one GW of electricity"

80 tonnes of silver= 80,000kg = 2,492,000 oz

1GW = 1 Billion Watts/2,492,000oz = 400W/per oz


Silver has to be mined,crushed,smelted,leached,
refined & transported before it can be used in
photovoltics.....that's one heck of a lot of
dirty energy & dirty chemicals used before you
get any so called clean energy back!


- - - - -
View Replies (1) »



» You can also:
- - - - -
The above is a reply to the following message:
Krugman on Solar Power
By: Cactus Flower
in ALEA
Wed, 16 Apr 14 8:41 PM
Msg. 15397 of 54959

"In fact, you should be optimistic about the ability of a market economy to reduce emissions given the incentives. And now we know something new: the technological prospects for a low-emission economy have gotten dramatically better.

It’s kind of odd how little attention the media give to the solar revolution, but this is really huge stuff:

In fact, it’s possible that solar will displace coal even without special incentives. But we can’t count on that. What we do know is that it’s no longer remotely true that we need to keep burning coal to satisfy electricity demand. The way is open to a drastic reduction in emissions, at not very high cost.

And that should make us optimistic about the future, right? I mean, all that stands in our way is prejudice, ignorance, and vested interests. Oh, wait."

April 15
http://krugman.blogs.nytimes.com/


« ALEA Home | Email msg. | Reply to msg. | Post new | Board info. Previous | Home | Next