17 Jul '11, 4am

How to Use Solar Energy at Night

Saturday July 16, 2011, 8:11 am Near Granada, Spain, more than 28,000 metric tons of salt is now coursing through pipes at the Andasol 1 power plant. That salt will be used to solve a pressing if obvious problem for solar power: What do you do when the sun is not shining and at night? The answer: store sunlight as heat energy for such a rainy day. Part of a so-called parabolic trough solar-thermal power plant, the salts will soon help the facility light up the night—literally. Because most salts only melt at high temperatures (table salt, for example, melts at around 1472 degrees Fahrenheit, or 800 degrees Celsius) and do not turn to vapor until they get considerably hotter—they can be used to store a lot of the sun's energy as heat. Simply use the sunlight to heat up the salts and put those molten salts in proximity to water via a heat exchanger. Hot steam can then be mad...

Full article: http://www.care2.com/news/member/451276626/2871290

Tweets

Solar Energy News {Weekly Round-Up}

Solar Energy News {Weekly Round-Up}

cleantechnica.com 18 Jul '11, 10pm

“Curious what it would cost to install solar panels on your home? We are launching a promotion to spread the good solar wo...

Solar Power Camping Gadgets | Solar Feeds News

Solar Power Camping Gadgets | Solar Feeds News

solarfeeds.com 15 Jul '11, 3pm

It’s summertime, the perfect time of the year to enjoy the great outdoors. Camping is in itself quite a sustainable altern...

Is Solar Power Right For Me?: Learn the ins and...

spheralsolar.com 16 Jul '11, 2pm

is getting more attention now than ever. It has been touted as the solution to our energy AND our climate crisis. But what...

hello people please help me out :( can you see ...

pxdkitty.blogspot.com 26 Jul '11, 6am

Went cycling with baby today at ECP!!! :D We got like the double bike and i was totally freeloading at the back lor hahaha...

Thanks Legislators, Higher Energy Bills Are on the Way

Thanks Legislators, Higher Energy Bills Are on ...

globalwarming.org 17 Jul '11, 1pm

The price of everything is going up and much of the increase can be traced back to energy costs. With unemployment high an...

Check out our last Green Girls Night Out in Seattle. Thank you Nathan Maas for being such a fabulous Nicobella...

Check out our last Green Girls Night Out in Sea...

ecostiletto.com 17 Jul '11, 4pm

What’s GGNO? We’re taking our tried-and-true celebration of sustainable fashion, beauty and lifestyle on the road as part ...

cradle-to-cradle netzeroenergyStar & disruptive...

enn.com 18 Jul '11, 11am

Energy Star is an international standard for energy efficient consumer products originated in the United States of America...

Nissan's Solar-powered Leaf Recharging System

Nissan's Solar-powered Leaf Recharging System

solarfeeds.com 16 Jul '11, 2pm

The concept of electric vehicles has been very old, but has caught auto majors fancy after 2007’s global economic recessio...

Water suppliers embrace solar energy - #solarenergy #water #California #solar #renewableenergy

Water suppliers embrace solar energy - #solaren...

earthtimes.org 21 Jul '11, 8pm

Yesterday the San Juan Water District, in California, began buying power from a solar energy facility that it developed on...

Galactic-scale energy: Part 1

theoildrum.com 21 Jul '11, 8am

This is a guest post by Tom Murphy. Tom is an associate professor of physics at the University of California, San Diego. H...

Honda's "third pillar" will be solar, gas cogen...

green.autoblog.com 18 Jul '11, 5pm

As a mechanical enginner, we have used a similar product that generated both electricity and heat from natural gas for a c...

Could Solar Inverters Moonlight As Grid Stabilizers?

Could Solar Inverters Moonlight As Grid Stabili...

cleantechnica.com 13 Jul '11, 6am

All utility-scale solar farms use inverters that turn the DC power that solar panels make into the AC power that is used o...

The Most Efficient Energy Star: Energy Star is ...

enn.com 15 Jul '11, 9pm

Energy Star is an international standard for energy efficient consumer products originated in the United States of America...

Being Bullish on Solar: Filed under: Energy News

Being Bullish on Solar: Filed under: Energy News

cleantechnica.com 15 Jul '11, 12am

As a warm-up for the Intersolar North American Conference in San Francisco this week, I had the opportunity to visit SunPo...