[Vo]:Re: Crescent Dunes Solar Energy Project

@eskimo.com Subject: Re: [Vo]:Re: Crescent Dunes Solar Energy Project In reply to <pjvannoor...@caiway.nl>'s message of Thu, 31 Dec 2015 12:26:56 +0100: Hi Peter, While true of normal solar cells, I seem to recall that there are also high efficiency cells designed to be used with

Re: [Vo]:Re: Crescent Dunes Solar Energy Project

ChemE Stewart wrote: > The real play with Ivanpah was the IPO, which failed. That way the crooks > would have had the taxpayers pay for it the first time and then investors > buy it a second time while they suck the money out and bankrupt it. > This makes no sense. If the

[Vo]:Re: Crescent Dunes Solar Energy Project

"You also have to return the loan with any profit you make. You cannot choose not to pay back a loan!" Actually, the taxpayers just paid off $539M of their own loan to Ivanpah. Taxpayers lent the money and taxpayers paid. "Now, Ivanpah is asking

Re: [Vo]:Re: Crescent Dunes Solar Energy Project

ChemE Stewart wrote: > Actually, the taxpayers just paid off $539M of their own loan to Ivanpah. > Taxpayers lent the money and taxpayers paid. > That is not what Renewable Energy News said. I do not know which version of the news is correct, but I kind of doubt the Federal

[Vo]:Re: Crescent Dunes Solar Energy Project

Hello Robin To store heat economically they can not use water heated by the PV cells, bcs these cells have to be as cool as possible to work efficiently. By concentrating the rest of the direct sunlight on a thermal absorber it is possible to get much higher temperatures to store heat

Re: [Vo]:Re: Crescent Dunes Solar Energy Project

In reply to 's message of Thu, 31 Dec 2015 12:26:56 +0100: Hi Peter, While true of normal solar cells, I seem to recall that there are also high efficiency cells designed to be used with solar concentrators. I'm guessing that these will also function at boiling water

Re: [Vo]:Re: Crescent Dunes Solar Energy Project

ChemE Stewart wrote: > Wrong, Ivanpah uses steam drum boiler technology and steam turbine > technology and Home Depot flat mirror technology that have been around for > 100 years. > I believe the mirrors are more high tech than the ones at Home Depot, but if they were

Re: [Vo]:Re: Crescent Dunes Solar Energy Project

wrote: > While true of normal solar cells, I seem to recall that there are also high > efficiency cells designed to be used with solar concentrators. I'm > guessing that > these will also function at boiling water temperatures. Is this not the > case? > Yes, I recall

Re: [Vo]:Re: Crescent Dunes Solar Energy Project

Jed: "Suppose that in the 1990s someone had put a lot of money into solar CSP technology. The cost might have fallen quickly and perhaps today it would be cheaper than PV or wind" Wrong, Ivanpah uses steam drum boiler technology and steam turbine technology and Home Depot flat mirror technology

Re: [Vo]:Re: Crescent Dunes Solar Energy Project

Note: The ASME document may not describe the coating used at Ivanpah. However, I read an article about the glass there some time ago that said it has some similar coating. It resembles Teflon. Water and dust do not easily adhere to it; they blow right off again. I wish they would invent something

Re: [Vo]:Re: Crescent Dunes Solar Energy Project

Interesting that Ivanpah is a high wind area with land sailing. https://en.m.wikipedia.org/wiki/Ivanpah_Lake Flat mirrors catch a lot more wind than a low profile trough, like a sail. I guess without the mirror coating the system would be be performing even worse than 40% below design...