Featured Research

from universities, journals, and other organizations

Concentrating solar power: Study shows greater potential

Date:
June 22, 2014
Source:
International Institute for Applied Systems Analysis
Summary:
Concentrating solar power could supply a large fraction of the power supply in a decarbonized energy system, shows a new study of the technology and its potential practical application.

Concentrating solar power (CSP) could supply a substantial amount of current energy demand, according to the study published in the journal Nature Climate Change. In the Mediterranean region, for example, the study shows that a connected CSP system could provide 70-80% of current electricity demand, at no extra cost compared to gas-fired power plants. That percentage is similar to what a standard energy production plant, such as a nuclear plant, can provide.

"Solar energy systems can satisfy much more of our hunger for electricity, at not much more cost than what we currently have," says Stefan Pfenninger, who led the study while working at IIASA. He is now a Research Postgraduate at the Grantham Institute at Imperial College London.

The study was the first to examine the potential of CSP as a large-scale energy production system, in four regions around the world. "In order to address climate change we need to greatly expand our use of renewable energy systems," says IIASA researcher Fabian Wagner, who also worked on the study. "The key question, though, is how much energy renewable systems can actually deliver."

One problem with deploying solar energy on a large scale is that the sun doesn't shine all the time. That means that energy must be stored in some way. For photovoltaic (PV) cells, which convert sunlight directly to electricity, this is especially difficult to overcome, because electricity is difficult to store.

Unlike photovoltaic (PV) cells, CSP uses the sun's energy to heat up a liquid that drives turbines. This means that the collected energy can be stored as heat, and converted to electricity only when needed. But even with CSP, if the sun doesn't shine for long periods of time, the system may not be able to support large-scale energy needs.

One way to solve this problem is to build a large, connected network of CSP. Until now, however, nobody had explored the details and feasibility of such a plan. In the new study, the researchers simulated the construction and operation of CSP systems in four regions around the world, taking into account weather variations, plant locations, electricity demand, and costs.

"Our study is the first to look closely at whether it's possible to build a power system based primarily on solar energy, and still provide reliable electricity to consumers around the clock, every day of the year. We find this to be possible in two world regions, the Mediterranean basin and the Kalahari Desert of Southern Africa," says study co-author Anthony Patt, Professor of Human-Environment Systems, ETH Zurich Department of Environmental Systems Science, and an IIASA guest research scholar.


Story Source:

The above story is based on materials provided by International Institute for Applied Systems Analysis. Note: Materials may be edited for content and length.


Journal Reference:

  1. Stefan Pfenninger, Paul Gauchι, Johan Lilliestam, Kerstin Damerau, Fabian Wagner, Anthony Patt. Potential for concentrating solar power to provide baseload and dispatchable power. Nature Climate Change, 2014; DOI: 10.1038/nclimate2276

Cite This Page:

International Institute for Applied Systems Analysis. "Concentrating solar power: Study shows greater potential." ScienceDaily. ScienceDaily, 22 June 2014. <www.sciencedaily.com/releases/2014/06/140622142234.htm>.
International Institute for Applied Systems Analysis. (2014, June 22). Concentrating solar power: Study shows greater potential. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2014/06/140622142234.htm
International Institute for Applied Systems Analysis. "Concentrating solar power: Study shows greater potential." ScienceDaily. www.sciencedaily.com/releases/2014/06/140622142234.htm (accessed September 2, 2014).

Share This




More Earth & Climate News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Iceland Lowers Aviation Alert on Volcano

Iceland Lowers Aviation Alert on Volcano

AFP (Sep. 1, 2014) — Iceland has lowered its aviation alert on its largest volcano after a fresh eruption on a nearby lava field prompted authorities to enforce a flight ban for several hours. Duration: 01:07 Video provided by AFP
Powered by NewsLook.com
Lightning Hurts 3 on NYC Beach

Lightning Hurts 3 on NYC Beach

AP (Sep. 1, 2014) — A lightning strike injured three people on a New York City beach on Sunday. The storms also delayed flights and interrupted play at the US Open tennis tournament. (Sept. 1) Video provided by AP
Powered by NewsLook.com
Thailand Totters Towards Waste Crisis

Thailand Totters Towards Waste Crisis

AFP (Sep. 1, 2014) — Fears are mounting in Bangkok that poor planning and lax law enforcement are tipping Thailand towards a waste crisis. Duration: 01:21 Video provided by AFP
Powered by NewsLook.com
Melting Ice Shelves Drive Rapid Antarctic Sea Level Rise

Melting Ice Shelves Drive Rapid Antarctic Sea Level Rise

Newsy (Sep. 1, 2014) — A study of almost 20 years' worth of satellite images shows Antarctic sea levels are on the rise as ice shelves continue to melt. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins