Not Logged In Log In   Sign Up   Points Leaders
Follow Us    9:35 AM

Message Forum - Read Message

Category: Daily News Article Discussions > Topics Add to favorite topics  
Author Topic: In Ariz., A Solar Plant That Powers 70,000 Homes Day Or Night Back to Topics
orphancarguyPE

Champion Author
PEI

Posts:6,417
Points:1,350,660
Joined:Jan 2011
Message Posted: Oct 12, 2013 12:18:03 PM

Outside Phoenix, Ariz., on Wednesday, a power company one of the largest solar power plants of its kind in the world. But unlike other solar farms, this plant continues giving power to 70,000 Arizona households long after the sunset.

The Solana plant that are tilted so they focus the sun's rays to heat a specially-designed oil. That boils water, which drives turbines and generates electricity. Or, the oil can heat giant tanks of salt, which soak up the energy. When the sun goes down, or when households need more power, the hot salt tanks heat up the oil, which again boils water to drive the turbines.

Whereas conventional solar panels only give power when the sun is up, these giant salt batteries give renewable energy on demand. They can store six hours-worth of energy, which can meet the
Visit NPR for full article
REPLIES (newest first) Post a Reply
Profile Pic
heydano67
Champion Author California

Posts:2,505
Points:932,800
Joined:Feb 2012
Message Posted: Oct 14, 2013 2:49:17 AM

I wonder how efficient it is.
Profile Pic
oldmack
Champion Author Riverside

Posts:2,186
Points:215,525
Joined:Jan 2013
Message Posted: Oct 14, 2013 2:21:55 AM

ok
Profile Pic
drobbbb
Champion Author Maryland

Posts:5,984
Points:1,441,675
Joined:Dec 2010
Message Posted: Oct 13, 2013 11:16:39 PM

this can only grow in Arizona
Profile Pic
PDQBlues
Champion Author San Diego

Posts:9,808
Points:2,093,075
Joined:Jan 2009
Message Posted: Oct 13, 2013 9:01:18 PM


There's plenty of sunshine in the Southwest. Solar makes a lot of $en$e.
Profile Pic
drpepperTX
Champion Author Texas

Posts:13,624
Points:1,396,395
Joined:Apr 2011
Message Posted: Oct 13, 2013 10:30:53 AM

"How much of it is subsidized?"
========================
This plant is subsidized to the tune of $1,450,000,000.00 in federal (tax dollar) loan guarantees. That's about 75% of the total cost.
Profile Pic
orphancarguyPE
Champion Author PEI

Posts:6,417
Points:1,350,660
Joined:Jan 2011
Message Posted: Oct 13, 2013 9:36:14 AM

Daytime and up to six hours after sunset is where most of the electricity used in every 24 hours is used. Surprisingly, its not dark evening but right in the the bright sunlight hours that more electricity is used. This makes traditional solar PV sensible no matter what Fox News says..as long as you have something like this for the sholder period that can be turned on and off in the blink of an eye. Overnight, there is a serious OVERSUPPLY nowadays of electricity even from baseline generating...its hard to give it away. Why do you think its so cheap from midnight to 6AM where there are variable power rates?? (wind power by the way, tends to be be higher overnight than during the day on average, so that too helps with overnight supply) So, this neatly covers the high use portions of the day--and make renewables that much more 'efficient'
Profile Pic
MadFueler
Champion Author Winston-Salem

Posts:3,982
Points:820,365
Joined:Sep 2012
Message Posted: Oct 13, 2013 8:59:45 AM

Yes, FPLREP, any storage mechanism involves transfer and therefore some energy loss - but the gains involved in timeshifting the use of the energy are a good tradeoff.
Profile Pic
FPLREP
Champion Author Virginia

Posts:11,506
Points:3,093,910
Joined:Oct 2005
Message Posted: Oct 13, 2013 7:43:19 AM

Lots of heat transfer involved in the process. Transfer and transformation each have an energy loss.
Profile Pic
leeac
Champion Author Ohio

Posts:4,369
Points:1,082,215
Joined:Jan 2012
Message Posted: Oct 13, 2013 4:07:53 AM

Wind and direct solar energy are the energy sources of the future.
Profile Pic
djgunrunner
Champion Author Salt Lake City

Posts:13,015
Points:2,991,135
Joined:Apr 2005
Message Posted: Oct 13, 2013 3:42:24 AM

How much of it is subsidized?
Profile Pic
gbs1
Champion Author Minnesota

Posts:4,751
Points:1,390,900
Joined:Mar 2011
Message Posted: Oct 13, 2013 2:50:47 AM

Good idea
Profile Pic
Amplion
Champion Author Oregon

Posts:9,632
Points:2,487,640
Joined:Sep 2005
Message Posted: Oct 13, 2013 2:26:06 AM

SHUT DOWN NPR !!!
Profile Pic
cnygas
Champion Author New York

Posts:1,145
Points:259,735
Joined:Sep 2013
Message Posted: Oct 13, 2013 1:59:38 AM

Glad to see something
Profile Pic
doeslayersr
Champion Author Illinois

Posts:12,465
Points:1,519,455
Joined:Dec 2010
Message Posted: Oct 13, 2013 12:07:15 AM

Article is better suited for another forum or a different website such as solarbuddy.com
Profile Pic
CdnLynx
Champion Author Ontario

Posts:1,239
Points:1,070,055
Joined:May 2008
Message Posted: Oct 12, 2013 10:39:40 PM

It great! Salt batteries to hold energy after the sum goes down makes it far better, it may only be six hours; still a world of difference, if it takes it just a little farther, in order to create more creature comfort!
Profile Pic
andy1024
Champion Author Allentown

Posts:4,386
Points:1,042,880
Joined:Dec 2011
Message Posted: Oct 12, 2013 8:53:19 PM

Fantastic.
Profile Pic
danindenver
Champion Author Denver

Posts:7,644
Points:1,862,680
Joined:May 2005
Message Posted: Oct 12, 2013 7:03:36 PM

Livin' the dream!

Profile Pic
tillandsia
Veteran Author Gainesville

Posts:287
Points:64,815
Joined:Jun 2013
Message Posted: Oct 12, 2013 6:36:27 PM

Sounds great!
Profile Pic
gcalleja
Champion Author Miami

Posts:3,054
Points:1,163,515
Joined:May 2011
Message Posted: Oct 12, 2013 6:31:27 PM

Great! Competition for OPEC.
Profile Pic
ktbaeohana
Champion Author Las Vegas

Posts:4,591
Points:1,024,350
Joined:Mar 2010
Message Posted: Oct 12, 2013 5:56:42 PM

GOOD NEWS.
Profile Pic
mike56MI
Champion Author Michigan

Posts:3,932
Points:947,765
Joined:Aug 2011
Message Posted: Oct 12, 2013 5:50:55 PM

Cool
Profile Pic
wrunner
Champion Author Virginia

Posts:7,267
Points:1,784,475
Joined:Dec 2009
Message Posted: Oct 12, 2013 5:44:18 PM

Fascinating!

Let the sunshine in and let it shine brightly.

The future so bright, gonna, gotta wear shades.
Profile Pic
MidNJ
Champion Author New Jersey

Posts:9,730
Points:1,754,470
Joined:Sep 2009
Message Posted: Oct 12, 2013 5:21:01 PM

Interesting technology.
Profile Pic
SRcyclist
Champion Author San Diego

Posts:2,198
Points:1,466,805
Joined:May 2010
Message Posted: Oct 12, 2013 4:49:20 PM

Sounds good
Profile Pic
evowner
Champion Author Salem

Posts:5,241
Points:998,480
Joined:May 2012
Message Posted: Oct 12, 2013 3:19:35 PM

I thought the idea was too complicated, but I hadn't considered the energy storage aspect.
Profile Pic
TXCRZ
Sophomore Author Dallas

Posts:239
Points:949,575
Joined:Jun 2011
Message Posted: Oct 12, 2013 3:00:34 PM

Better life thru technology!
Profile Pic
BUSMAN1105
Champion Author Atlanta

Posts:3,946
Points:1,762,710
Joined:Aug 2008
Message Posted: Oct 12, 2013 2:55:49 PM

WE NEED MORE OF THESE TYPE OF POWER PLANTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Profile Pic
YumaFellow
Champion Author Arizona

Posts:3,974
Points:1,218,295
Joined:Jan 2011
Message Posted: Oct 12, 2013 2:53:38 PM

Drive buy this place frequently. It is an impressive plant and the technology seems to be working well.
Profile Pic
livedream
Champion Author Michigan

Posts:6,619
Points:1,398,820
Joined:Mar 2011
Message Posted: Oct 12, 2013 2:48:27 PM

Sounds like a definite improvement over traditional solar power.
Good article!
Profile Pic
humblepie
Champion Author Toledo

Posts:58,648
Points:3,021,470
Joined:Mar 2006
Message Posted: Oct 12, 2013 2:38:42 PM

what thrilling news eh ?
Profile Pic
csblesson
Champion Author Texas

Posts:3,683
Points:957,070
Joined:May 2012
Message Posted: Oct 12, 2013 2:30:02 PM

Good for them, but how much does it cost?
Profile Pic
teenitup
Champion Author Houston

Posts:4,878
Points:860,510
Joined:Sep 2012
Message Posted: Oct 12, 2013 2:24:12 PM

>>"So anyone know where there is only 6 hours of darkness year round that anyone would want to live at?<<"

My thoughts as well, especially at these costs!
Profile Pic
nybearhunter
Champion Author New York

Posts:2,618
Points:560,200
Joined:Jul 2012
Message Posted: Oct 12, 2013 2:19:42 PM

Very nice.
Profile Pic
Lugi1967
Champion Author Ohio

Posts:7,214
Points:1,627,625
Joined:Jun 2010
Message Posted: Oct 12, 2013 2:17:16 PM

Right place for it
Profile Pic
335d1
Champion Author Virginia

Posts:5,132
Points:1,380,120
Joined:Feb 2011
Message Posted: Oct 12, 2013 2:16:38 PM

Interesting way to keep electricity flowing.
Profile Pic
CocoPaz
Champion Author Santa Barbara

Posts:6,825
Points:970,905
Joined:Jun 2012
Message Posted: Oct 12, 2013 2:01:15 PM

interesting
Profile Pic
bar1035
Champion Author Charlotte

Posts:13,010
Points:1,945,795
Joined:Aug 2006
Message Posted: Oct 12, 2013 1:56:26 PM

So anyone know where there is only 6 hours of darkness year round that anyone would want to live at?
Profile Pic
hmw10284
Champion Author California

Posts:3,808
Points:795,685
Joined:Sep 2012
Message Posted: Oct 12, 2013 1:52:00 PM

If you have a solar array you should also have a home backup system. One company started by the founder of Tesla uses technology engineered by Tesla, leveraging their expertise in developing battery technologies for premium electric vehicles.
Tesla's long history of research and development has enabled a cost-effective, wall-mounted storage appliance that is small, powerful and covered by a long lasting full 10 year warranty. The actual battery unit is about the size of a solar power inverter, and will be mounted on the wall in your garage or near your electrical panel. I am not sure if the battery units can be daisy chained to store more power for off hours but would expect so.

Then you can avoid those stupid $100 per month grid connection fees being proposed now by getting off the grid and storing your excess power for off hours.

Here is an article about it.

http://www.bloomberg.com/news/2013-10-07/battery-stored-solar-power-sparks-backlash-from-utilities.html

Of course as retaliation power companies like PG&E, Edison and Sempra are now trying to punish people who have installed the battery systems and are still connected to the grid by saying the power is unreliable and not clean (hello it is solar people). Anything to screw people.

[Edited by: hmw10284 at 10/12/2013 1:53:47 PM EST]
Profile Pic
Night Owl
Champion Author Toronto

Posts:10,210
Points:2,428,950
Joined:Jul 2004
Message Posted: Oct 12, 2013 1:43:08 PM

Sounds great.
Profile Pic
Eugenian
Champion Author Oregon

Posts:2,785
Points:540,645
Joined:Oct 2009
Message Posted: Oct 12, 2013 1:38:47 PM


We need more of these.
Profile Pic
kag2010
Champion Author Winnipeg

Posts:7,670
Points:1,625,210
Joined:Apr 2010
Message Posted: Oct 12, 2013 1:34:41 PM

Very interesting
Profile Pic
mitt4prez
Champion Author Tacoma

Posts:4,497
Points:1,881,340
Joined:Nov 2007
Message Posted: Oct 12, 2013 1:17:08 PM

Take the subsidies and regulatory waivers out, and what would happen? Another blowup.
Profile Pic
Suzzoom
Champion Author Nevada

Posts:4,969
Points:1,145,185
Joined:Jan 2011
Message Posted: Oct 12, 2013 1:11:22 PM

Sounds like a good technique. Of course, Arizona gets a lot of sunshine. Wonder if this would work in areas with less sunshine?
Profile Pic
lippoe_sokan
Champion Author Provo

Posts:3,222
Points:822,275
Joined:Nov 2012
Message Posted: Oct 12, 2013 1:09:02 PM

Over time, we'll get more and better methods for renewable energy processes.
Profile Pic
drpepperTX
Champion Author Texas

Posts:13,624
Points:1,396,395
Joined:Apr 2011
Message Posted: Oct 12, 2013 1:04:03 PM

A little quick math, that's only about $29,000 per household!
Profile Pic
mastermariner
Champion Author Texas

Posts:12,828
Points:1,118,895
Joined:Jun 2011
Message Posted: Oct 12, 2013 1:01:08 PM

Very interesting
Profile Pic
drpepperTX
Champion Author Texas

Posts:13,624
Points:1,396,395
Joined:Apr 2011
Message Posted: Oct 12, 2013 1:00:48 PM

Let's hope this works! $1.45 Billion of our tax dollars are at risk. Almost 75% of the cost of this plant.
Profile Pic
DOS
Champion Author Illinois

Posts:1,034
Points:985,540
Joined:Feb 2003
Message Posted: Oct 12, 2013 12:28:44 PM

I'm not really as keen on these sort of Grid level solar plants as I am about distributed generation but its cool that they have figured out how to store some of the energy so that it can also serve "base load" demand. So much for the argument that renewable energy can't provide base load power.

Nice article orphancarguy!
Post a reply Back to Topics