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Primeur weekly 2011-11-14

Special

International data Grids to be highlighted by RENCI at SC11 ...

Japan's K Computer tops 10 Petaflop/s to stay atop TOP500 List ...

NASA and DOE's Lawrence Livermore National Laboratory confirm Obsidian's BGFC first order functionality ...

Adaptive Computing delivers intelligent Grid resource management to Gaea, NOAA's new climate modelling and research system ...

Exascale supercomputing

NCAR selects IBM for key components of new Supercomputing Center ...

The Cloud

Terascala announces enhanced version of proven storage management solution for fast data analysis in the Cloud and in shared resource environments ...

Terascala announces support for Lustre 2,1 ...

The Green Grid and Open Data Center Alliance form strategic collaboration to drive efficient Cloud resource standards ...

EuroFlash

Submissions for ISC research papers and tutorials now being accepted ...

Post Doc position available at INAF in Catania, Sicily ...

DataDirect Networks' groundbreaking Storage Fusion Architecture (SFA) System selected to power Europe's fastest supercomputer ...

European industry and research centres join forces to create a European Technology Platform for High Performance Computing ...

Russian Academy of Sciences expands GPU supercomputing infrastructure to accelerate scientific research ...

PRACE to issue project access 4th call for proposals for Tier-0 and Synchronized Call for Tier-1 ...

USFlash

Terascala announces membership in OpenSFS ...

Supercomputers accelerate development of advanced materials ...

Kraken set to deliver 2 billionth CPU hour, sustains 96 percent utilization ...

NEC developing next generation vector supercomputer - aiming for the world's leading energy-efficient supercomputer ...

Blacklight goes to work at the Pittsburgh Supercomputing Center ...

Fujitsu launches PRIMEHPC FX10 supercomputer ...

Platform Computing announces support for upcoming Intel Many Integrated Core architecture-based products ...

NASA selects next-generation SGI ICE HPC platform for technology upgrade ...

SDSC's Triton Resource helps develop new model for forecasting California solar power production ...

U.S. Department of Energy Laboratory selects DataDirect Networks' SFA12K Storage to enable clean energy technology insight and discovery ...

Rensselaer Polytechnic Institute researchers use supercomputer to study effects of stacking graphene nanoribbons ...

Appro has been selected for the second time to support the High Performance Computing Modernization Programme (HPCMP) to improve supercomputing capabilities ...

Chinese researchers tap GPU supercomputer for world's first simulation of complete H1N1 virus ...

For the first time, IBM brings mainframe and Windows together ...

AMD processors power leading research and academic supercomputers ...

Mali-T658 GPU extends graphics and GPU compute leadership for high performance devices ...

ORNL fundamental discovery casts enzymes in new light ...

Altera's Stratix IV FPGAs deliver unprecedented acceleration for world's most powerful reconfigurable supercomputer ...

SDSC's Triton Resource helps develop new model for forecasting California solar power production

7 Nov 2011 San Diego - The space shuttle programme may have ended, but data collected by astronauts during the past three decades are still helping advance science, this time with the assistance of the Triton Resource, a supercomputer at the San Diego Supercomputer Center, an Organized Research Unit of the University of California, San Diego.

Researchers at the UC San Diego's Jacobs School of Engineering recently used measurements from NASA's Shuttle Radar Topography Mission to predict how changes in elevation, such as hills and valleys, and the shadows they create, impact power output in California's solar grid. Since current, large-scale models used to calculate solar power output do not take elevation into account, the California Public Utilities Commission asked Jan Kleissl, a professor of environmental engineering at Jacobs, and postdoctoral researcher Juan Luis Bosch, from the department of mechanical and aerospace engineering, to build a model that does.

The researchers relied on SDSC's Triton Resource, which used 60,000 processor hours to run calculations to help create a new model that includes detailed elevation data. The model is being made available publicly on a large scale, including all of Southern California, as well as the San Francisco Bay Area. Utility companies and homeowners can use the model to get a more realistic picture of the solar power output they can typically expect to produce. This is an especially important tool for utilities, because it gives them a better idea of how much revenue they can actually generate, Jan Kleissl said.

Changes in elevation can have a significant impact on solar power output. The longer it takes for the sun to rise above the local horizon in the morning and the earlier it sets in the evening, the more solar fuel is lost. Solar days are longest on top of tall mountains. They are shortest in steep valleys oriented north-south, where it can take more than an hour longer for the sun to appear in the east.

For example, on clear winter days in San Francisco’s Twin Peaks neighborhood, in the areas at the foot of the steepest hills, solar days are up to 30 percent shorter than on flat terrain. A solar power plant in that area would produce 12 percent less energy on those days than if it was located on a plain or other flat landscape. But in summertime, the days are much longer and the sun is brighter, so the total production shortfall would be only one to two 2 percent over the course of a whole year.

"Solar resource models have become very accurate", stated Jan Kleissl. "Now we are refining them down to the last few percentage points."

Juan Luis Bosch, the postdoctoral researcher, used elevation data obtained on a near-global scale by astronauts aboard the space shuttle Endeavour during an 11-day mission in February, 2000. The data were later compiled into a high-resolution digital topographic database of most of planet Earth. Juan Luis Bosch and Jan Kleissl focused on the areas of California where most solar power plants are located and where elevation is an issue, namely the San Francisco Bay Area and Southern California, including San Diego, Imperial, Riverside, Orange, and Los Angeles counties.

One caveat for the method developed by Jan Kleissl and Juan Luis Bosch is that it provides only baseline information in urban areas. Trees, poles, and other rooftop structures, such as chimneys, can cause more power losses. In that case, the best method to estimate power shortfalls is to use a fisheye camera to visualize the local horizon, a device that any qualified installer of solar panels would have on hand.

Full details of Jan Kleissl and Juan Luis Bosch's study can be found on-line at http://www.jacobsschool.ucsd.edu/news_events/releases/2011/HorizonCalcs_rev_1.pdf . The horizon data will be made available as a simulation option in Clean Power Research's SolarAnywhere product line as early as the first quarter of 2012 at https://www.solaranywhere.com/Public/About.aspx .
Source: San Diego Supercomputer Center

Back to Table of contents

Primeur weekly 2011-11-14

Special

International data Grids to be highlighted by RENCI at SC11 ...

Japan's K Computer tops 10 Petaflop/s to stay atop TOP500 List ...

NASA and DOE's Lawrence Livermore National Laboratory confirm Obsidian's BGFC first order functionality ...

Adaptive Computing delivers intelligent Grid resource management to Gaea, NOAA's new climate modelling and research system ...

Exascale supercomputing

NCAR selects IBM for key components of new Supercomputing Center ...

The Cloud

Terascala announces enhanced version of proven storage management solution for fast data analysis in the Cloud and in shared resource environments ...

Terascala announces support for Lustre 2,1 ...

The Green Grid and Open Data Center Alliance form strategic collaboration to drive efficient Cloud resource standards ...

EuroFlash

Submissions for ISC research papers and tutorials now being accepted ...

Post Doc position available at INAF in Catania, Sicily ...

DataDirect Networks' groundbreaking Storage Fusion Architecture (SFA) System selected to power Europe's fastest supercomputer ...

European industry and research centres join forces to create a European Technology Platform for High Performance Computing ...

Russian Academy of Sciences expands GPU supercomputing infrastructure to accelerate scientific research ...

PRACE to issue project access 4th call for proposals for Tier-0 and Synchronized Call for Tier-1 ...

USFlash

Terascala announces membership in OpenSFS ...

Supercomputers accelerate development of advanced materials ...

Kraken set to deliver 2 billionth CPU hour, sustains 96 percent utilization ...

NEC developing next generation vector supercomputer - aiming for the world's leading energy-efficient supercomputer ...

Blacklight goes to work at the Pittsburgh Supercomputing Center ...

Fujitsu launches PRIMEHPC FX10 supercomputer ...

Platform Computing announces support for upcoming Intel Many Integrated Core architecture-based products ...

NASA selects next-generation SGI ICE HPC platform for technology upgrade ...

SDSC's Triton Resource helps develop new model for forecasting California solar power production ...

U.S. Department of Energy Laboratory selects DataDirect Networks' SFA12K Storage to enable clean energy technology insight and discovery ...

Rensselaer Polytechnic Institute researchers use supercomputer to study effects of stacking graphene nanoribbons ...

Appro has been selected for the second time to support the High Performance Computing Modernization Programme (HPCMP) to improve supercomputing capabilities ...

Chinese researchers tap GPU supercomputer for world's first simulation of complete H1N1 virus ...

For the first time, IBM brings mainframe and Windows together ...

AMD processors power leading research and academic supercomputers ...

Mali-T658 GPU extends graphics and GPU compute leadership for high performance devices ...

ORNL fundamental discovery casts enzymes in new light ...

Altera's Stratix IV FPGAs deliver unprecedented acceleration for world's most powerful reconfigurable supercomputer ...