Daily Archives: June 18, 2009

“We have the largest monolithically interconnected CIGS module on polyimide”

 Dr. Prem Nath , Ascent Solar Sr. Vice President for Production Operations

 Ascent Solar Technologies a developer of CIGS thin-film PV announced 5 meter long flexible light weight module on a polyimide substrate with aperture area efficiency of 9.1%

Ascent Solar Technologies, Inc. is a developer of thin-film photovoltaic modules with substrate materials that can be more flexible and affordable than most traditional solar panels. Ascent Solar modules can be directly integrated into electronics, military and consumer portable power products, transportation systems, building elements, and space / near-space applications resulting in market differentiated solutions. Ascent Solar is headquartered in Thornton, Colo.

[Paula Mints, Navigant Consulting]:We have to take into consideration that thin films are facing difficult times, as are crystalline technologies. The assumed price advantage (because of assumed lower manufacturing costs) continues to evaporate. In this difficult competitive environment only First Solar, with the photovoltaic industry’s assumed lowest manufacturing costs, can compete. In particular, when First Solar acts as the system integrator and designer as it often does, its module advantage (installing at cost plus transfer costs) renders other technologies non-competitive.

Trans Mediterranean Renewable Energy Cooperation $555 Billion Solar Project

By Jeremy van Loon and Oliver Suess

Siemens AG, Germany’s biggest engineering company, and Munich Re are holding talks with utilities on developing solar plants in the Sahara desert to supply 15 percent of Europe’s power needs by mid-century.

The discussions, which include German power companies RWE AG and E.ON AG, as well as Deutsche Bank AG, are in the early stages, Siemens spokesman Marc Langendorf said today. Turbines built by the Munich-based manufacturer may be used, he said.

The German companies want to harness a free fuel source that’s plentiful in one of the world’s poorest regions and sell the power to industrialized Europe. The plants may cost 400 billion euros ($555 billion) through 2050 and stretch across 130 square kilometers (50 square miles) of the North African desert, Munich Re said in a document published on its Web site today.

“The technology exists to realize a project of this scale,” said Sven Teske, renewable-energy program director at Greenpeace in Amsterdam. “The main constraint would be putting together a legal and political framework to have agreements on cross-border trade to allow the electricity into Europe.”

The project would need high-voltage cables to move the power from the sparsely populated Sahara under the Mediterranean Sea to Europe, which already is struggling to accommodate increasing power supply from the sun and wind with existing electricity-transmission grids.

 

In parallel to developing and implementing new technologies, we have to develop the nation’s infrastructure for solar installation training

DOE also announced plans to offer up to $27 million to develop the nation’s infrastructure for solar installation training. DOE will fund this effort using $5 million from the Recovery Act, as well as $22 million in annual appropriations. The funds will go to a single national organization that will facilitate the development and distribution of model training curricula, best practices in training, and information on solar career pathways. A select number of regional training centers that also receive funding to offer solar instructors advanced courses on solar technologies, instructional design, and course development. The funds will help create green jobs by ensuring that a trained workforce is ready to support significant growth in solar energy.

source: DOE

DOE will invest in 24 new PV Supply Chain and Cross-Cutting Technologies projects

The selected applicants, listed below by two topic areas, will receive $22 million. These project partners will provide more than $50 million in matching funding.

Topic 1: Proof of Concept Technical/Feasibility Assessment

Each project below receives up to $150,000 during a 12-month period to evaluate or assess and test an idea that can impact the solar photovoltaic industry.

Accustrata ($150,000)
College Park, Maryland

  • Develop a real-time optical monitoring system based on fiber optic reflectance measurements optimized for use in a thin-film production environment to improve the process flow and reduce costs.

Advanced Cooling ($150,000)
Lancaster, Pennsylvania

  • Develop new bonded copper thermal interface for high concentration PV that experiences rapid thermal cycles with a design that targets lower thermal stress and resistance.

Alenas Imaging ($148,000)
Conway, Massachusetts

  • Develop an inspection tool to detect micro-cracks in PV cells using thermo-reflectance at one-tenth the equipment cost of the best current methods.

Fraunhofer USA, Inc. Center for Laser Technology ($150,000)
Plymouth, Michigan

  • Develop a laser process to create pitting on solar cell surface to increase light absorption with the goal of providing superior optical surfaces, improved device performance, and reduced use of hazardous chemicals.

Optomec, Inc. ($150,000)
Albuquerque, New Mexico

  • Enhance an existing non-contact printing mechanism to support fully printed, fine feature collector lines on the front surface of crystalline silicon solar cells.

Palo Alto Research Center, Inc. ($150,000)
Palo Alto, California

  • Develop a novel approach to creating the front side metallization and selective emitter layer of crystalline silicon solar cells, using selective laser ablation to create contact points on the front surface and a screen printer to make the connections with conductive paste.

Photonic Glass Corp. ($149,000)
Sharon, Massachusetts

  • Reduce glass surface reflectance by ion beam surface modification to create a graded index of refraction.

PPG Industries, Inc. ($149,000)
Allison Park, Pennsylvania

  • Develop coatings that can be applied in a continuous automated process at a lower temperature and labor intensity than current PV protective materials like ethylene vinyl acetate.

SiOnyx Inc. ($128,000)
Beverly, Massachusetts

  • Develop a silicon surface treatment with femtosecond laser processing technology to enable increased light absorption and significantly larger spectral bandwidth for film silicon PV.

Solar Red ($150,000)
San Jose, California

  • Develop an all-AC, building integrated, thin-film cadmium telluride PV system for asphalt shingled sloped roofs. This plug-and-play, snap-in/snap-out AC PV system will significantly reduce installation costs.

Texas Engineering Experiment Station ($147,000)
College Station, Texas

  • Develop a novel method for thin film poly-Si cell fabrication that has a low thermal budget that is applicable to large area, low cost substrates for mass production. Texas Engineering will use a pulsed rapid thermal annealing process to convert a-Si to poly-Si via a vertical crystallization mechanism.

University of Houston ($150,000)
Houston, Texas

  • Evaluate an ion beam-assisted deposition process to double the efficiency of thin film PV while benefiting from the advantage of thin film manufacturing by the use of less material and roll-to-roll continuous processing.

University of Missouri ($150,000)
Rolla, Missouri

  • Develop processes to recycle solar grade silicon from top-cut scraps and slurry wastes from the wire sawing process.

The University of Texas at Arlington ($120,000)
Arlington, Texas

  • Demonstrate the feasibility of electrodeposited and solution-doped transparent conducting oxides (TCOs) such as zinc oxide, which is an “on-top” TCO that can be deposited on semiconductors in thin-film and future solar cells including amorphous silicon, copper indium gallium selenide and emerging solar cells.

Washington Technology Center ($136,000)
Seattle, Washington

  • Develop nano-imprinted diffraction gratings for light trapping in crystal-silicon film PV, since light trapping is essential in low cost thin crystalline silicon devices to ensure acceptable light absorption and current generation.

Topic 2: Research, Development, and Demonstration

Each project below receives up to $3 million during a 3-year period for research, evaluation, verification, testing, and demonstration. The winners are listed below with more specific project details.

3M ($1.2 million)
St. Paul, Minnesota

  • Develop a polymer barrier film that has lower inherent costs and higher transparency, replacing traditional barrier films.

Air Products and Chemicals, Inc. ($1.58 million)
Allentown, Pennsylvania

  • Develop an advanced radio frequency plasma chemical vapor deposition process with new gas-phase additives to achieve deposition for thin film silicon solar cells at increased growth rates and reactant utilization.

DuPont ($3 million)
Wilmington, Delaware

  • Develop a continuous, in-line manufacturing tool using atomic layer deposition to produce a flexible ultra moisture barrier film to enable new thin film flexible PV products.

General Electric (two awards)
Niskayuna, New York

  • Develop a system integrated, distributed PV architecture employing module-level DC to DC Maximum Power Point Tracker, rack, module, and power conversion components that will reduce increasing the energy yield, reducing total lifecycle costs, and improving overall system reliability and availability. ($1.8 million)
  • Develop a novel functional thin film platform that will allow for boosting the efficiency of any solar cell using down-shifting materials. Down-shifting is the process of converting high energy near-UV light within the solar spectrum to lower energy light that is more effectively used by the solar cell. ($1.2 million)

Sierra Solar Power ($3 million)
Fremont, California

  • Accelerate development of a high-volume manufacturing silicon epitaxy growth system, which is optimized for PV production that will enable the commercial manufacture of cells made from thin layers of monocrystalline silicon on cheap metallurgical-grade silicon wafers, reducing feedstock costs and capital equipment expenses.

Silicon Genesis Corporation ($3 million)
San Jose, California

  • Accelerate development of a silicon wafering tool that enables a dramatic reduction in silicon waste by utilizing a cleaving process as opposed to the conventional wire saw process.

Varian Semiconductor ($3 million)
Gloucester, Massachusetts

  • Develop a manufacturing tool that produces sheets of single-crystal film silicon in a continuous mode with significantly higher throughput and lower material costs than conventional manufacturing processes.

XeroCoat ($2.96 million)
Redwood City, California

  • Develop and commercialize a low-cost, novel glass antireflective coating that enables high transmission of light and therefore higher energy output from any glass PV module.

Source: DOE