News from Techno Sun in english

KYOCERA : Solar Modules Achieve ‘Performance Leader’ Rating in GTM Research’s Reliability Scorecard

KYOCERA : Solar Modules Achieve ‘Performance Leader’ Rating in GTM Research’s Reliability Scorecard; KYOCERA is Only Manufacturer to Earn Highest Rating Across All PV Module Tests

ENP Newswire – 28 August 2014

Release date- 25082014 – Scottsdale, AZ – Kyocera Corporation announced today that Kyocera is the only solar module manufacturer to rank as a Performance Leader in all six categories in independent testing by PV Evolution Labs, as reported in GTM Research’s July 2014 PV Module Reliability Scorecard.

The report ranks performance of the 15 participating manufacturers in three categories: Performance Leaders, Middle Performers or Low Performers.

‘With the exception of one manufacturer, Kyocera, no company consistently ranked within the Performance Leaders group for all test regimens, ‘ GTM Research noted. ‘Results showed that most producers that performed well in one test did not necessarily perform well in all tests.’

The tests included Temperature Cycling, Dynamic Mechanical Load, Humidity Freeze, Damp Heat, and two Potential Induced Degradation Tests – both Positive and Negative. PV Evolution Labs’ stringent test protocols exceeded the current industry standards to emulate various real-world climatic conditions over lifetime periods while observing power degradation performance of the solar modules being evaluated.

‘Kyocera has proven time and again, both in independent testing and by solar modules performing uninterruptedly in the field for decades, that our modules are able to consistently produce clean, renewable energy even in the harshest conditions, ‘ said Steve Hill, president of Kyocera Solar Inc. ‘GTM Research’s Reliability Scorecard is an important tool for investors and developers who seek independent verification that Kyocera modules exceed world-class levels of quality and reliability and are the best choice for their solar installations.’

Kyocera solar modules consistently demonstrate high reliability:

In March 2014, Kyocera solar modules passed TUV Rheinland’s rigorous Salt Mist Corrosion Test, Edition 2, Severity Level 6.

Kyocera modules are certified PID (Potential Induced Degradation) resistant, exhibiting no performance degradation after high-voltage stress testing, by the Fraunhofer Center for Silicon Photovoltaics.

Kyocera solar modules were the first in the world to be certified by TUV Rheinland’s Long-Term Sequential Test in 2010.

Kyocera solar modules have shown to be the best long-term-performing modules in the systems that were installed and began operation in October 2008 at Desert Knowledge Australia Solar Centre (DKA), a government-funded public showcase of solar installations.*

‘Two-thirds of today’s cumulative solar capacity has been installed within the last three years, and PV installations are forecast to quadruple by the end of the decade, growing from 128.3 GW at the end of 2013 to 528.1 GW by the end of 2020, ‘ GTM Research stated.

To learn more about Kyocera Solar solutions for both residential and commercial projects in the U.S. and Latin America, please contact or +1-800-223-9580.

*Desert Knowledge Australia, the Australian Government, the Northern Territory Government and the project managers, CAT Projects, do not endorse, and accept no legal liability whatsoever arising from or connected to, the outcomes and conclusions associated with the use of data from the Desert Knowledge Australia Solar Centre

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Summer newsletter August 2013

Summer Schedule 2013

Schedule during the summer in Techno Sun

Considerations to keep in mind this summer

Techno Sun will perform a holiday break from 12 to 23 august (inclusive). If during this period have any need please contact us by email at, we will try to assist you as soon as possible depending on the nature of the request. Outside these dates our schedule will remain the standard.


If you need place an order, please note that orders that have not been done before August 7 can not be managed until 26 August onwards. If you have any questions, please contact the Orders Department at the email address


Because of increased regular activity in the summer and to be able to serve customers, we inform you that we can not guarantee that the repair of equipment shipped after July 26 may be made before 1 September onwards, so we recommend keep this in mind. If you have any questions, please contact the RMA Department at the email address

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Kyocera presents its new Y Series solar modules

The Japanese technology group Kyocera’s latest additions to its Y Series solar module lineup are not only extremely robust and efficient, but they also permit maximum flexibility in terms of installation design. There is a simple reason for this: Kyocera’s portfolio not only contains conventional 60-cell units, the company also offers smaller modules with 36, 48 and 54 cells. These are ideal for use on irregularly shaped surfaces, such as rooftops with a complicated layout, and thus ensure that almost no space goes to waste.

Smaller modules, more installation options

The new Y Series at a glance:

  • 36 cells: KD145GH-4YU – available in September 2013
  • 48 cells: KD195GH-4YU – available in October 2013
  • 54 cells: KD220GH-4YU – available
  • 60 cells: KD245GH-4YB2 / KD250GH-4YB2 – available
  • 80 cells: KD320GH-4YB – available

for off-grid installations:

  • 36 cells: KD140SX-1YU – available
  • 36 cells: KD145SX-1YU – available end of 2013

The range of module sizes within Kyocera’s Y Series enhances the design flexibility during installation, as smaller modules can often be positioned more efficiently. This means that full use can be made of even the most irregularly shaped roofs, thereby maximizing energy production on a given surface area. The modules can be laid flat or mounted vertically. Thanks to Kyocera’s continuous development, it is also possible to attach all of the latest modules (excluding the 80-cell units) along their shorter sides or install them using inlay systems.

Extremely efficient and extremely long-lasting

Output and lifespan are by far the most important factors when looking at solar modules. At the heart of every new Y Series product are Kyocera’s 156 x 156 mm polycrystalline silicon cells embedded in EVA film. With an efficiency rating of over 16 percent, the silicon nitride processing not only lends a uniform colour, but it also keeps reflected light to a minimum.
Like all Kyocera solar modules, the new Y Series products feature a high-quality frame of black, anodized aluminium. The frame’s additional coating gives it outstanding resistance to corrosion, thereby maximizing its lifespan and durability, while at the same time reducing its weight. The frames are assembled using screws and adhesives, and can withstand forces of 5, 400N/m². The 60- and 80-cell modules come with two support bars on the reverse side for enhanced stability. In addition, interior drainage openings are designed to eliminate the risk of frost damage.

Production facility in Kadan / Czech Republic

TÜV Rheinland has tested the new Kyocera solar modules in line with the DIN EN ISO 11925-2 standard. They comply with guidelines regarding normal flammability as per DIN EN 13501-1, class E.
The products’ “Made in Europe“ certificate also means that users in France can benefit from a 5 percent increase in earnings from feed-in tarifs. This top-up was authorized by the French environment minster based on the ministerial decree of January 7, 2013.

The Y Series solar modules are manufactured at the company’s Kadan Plant in the Czech Republic. Kyocera’s vertically integrated production process guarantees maximum control, and by extension, maximum quality.



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PV project at the German Federal Environmental Agency in Berlin

Please find the press release enclosed (in 3 languages DE, EN and IT) for the recently finished PV project at the German Federal Environmental Agency in Berlin.

If convenient, please use this PJ reference as an example of an application of HIT modules on small commercial installations.

Please find the PJ factsheet attached too.

If you have any questions, comments, please do not hesitate contacting me again.





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Novel battery stretches to 300% of original size

Novel battery stretches to 300% of original size
Flexible electronics may now be just beyond our reach, as a research team from Northwestern and University of Illinois have demonstrated a stretchable lithium-ion battery.
No longer needing to be connected by a cord to an electrical outlet, the stretchable electronic devices now could be used anywhere, including inside the human body. The implantable electronics could monitor anything from brain waves to heart activity, succeeding where flat, rigid batteries would fail.
Northwestern University’s Yonggang Huang and the University of Illinois’ John A. Rogers have demonstrated a battery that continues to work—powering a commercial LED—even when stretched, folded, twisted and mounted on a human elbow. The battery can work for eight to nine hours before it needs recharging, which can be done wirelessly.
“We start with a lot of battery components side by side in a very small space, and we connect them with tightly packed, long wavy lines, ” said Huang. “These wires provide the flexibility. When we stretch the battery, the wavy interconnecting lines unfurl, much like yarn unspooling. And we can stretch the device a great deal and still have a working battery.”
The power and voltage of the stretchable battery are similar to a conventional lithium-ion battery of the same size, but the flexible battery can stretch up to 300 per cent of its original size and still function.
Six years in the making
Huang and Rogers have been working together for the last six years on stretchable electronics, and designing a cordless power supply has been a major challenge. Now they have solved the problem with their clever “space filling technique, ” which delivers a small, high-powered battery.
For their stretchable electronic circuits, the two developed “pop-up” technology that allows circuits to bend, stretch and twist. They created an array of tiny circuit elements connected by metal wire “pop-up bridges.” When the array is stretched, the wires—not the rigid circuits—pop up.
This approach works for circuits but not for a stretchable battery. A lot of space is needed in between components for the “pop-up” interconnect to work. Circuits can be spaced out enough in an array, but battery components must be packed tightly to produce a powerful but small battery. There is not enough space between battery components for the “pop-up” technology to work.
Huang’s design solution is to use metal wire interconnects that are long, wavy lines, filling the small space between battery components. (The power travels through the interconnects.)
The unique mechanism is a “spring within a spring”: The line connecting the components is a large “S” shape and within that “S” are many smaller “S’s.” When the battery is stretched, the large “S” first stretches out and disappears, leaving a line of small squiggles. The stretching continues, with the small squiggles disappearing as the interconnect between electrodes becomes taut.
“We call this ordered unraveling, ” Huang said. “And this is how we can produce a battery that stretches up to 300 per cent of its original size.”

Design properties
The stretching process is reversible, and the battery can be recharged wirelessly. The battery’s design allows for the integration of stretchable, inductive coils to enable charging through an external source but without the need for a physical connection.
Huang, Rogers and their teams found the battery capable of 20 cycles of recharging with little loss in capacity. The system they report in the paper consists of a square array of 100 electrode disks, electrically connected in parallel.
Huang’s research was supported by the Initiative for Sustainability and Energy at Northwestern University (ISEN).
The paper is titled “Stretchable batteries with self-similar serpentine interconnects and integrated wireless recharging systems.”
Watch a video demonstration of the battery below:

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Termination of the ULX series

This information server as formal communication of Danfoss Solar Inverters’ intent to discontinue the following products. OEM versions of these products and associates accesories:

ULX MV, ULX HV, ULX Indoor, ULX Outdoor, ULX Service tool, ULX warranty extensions

Danfoss Solar Inverters will continue our commitment to the ULX by supporting and sevicing discontinued products at all worldwide service centers throughout the life of all warranties in place, as long as the required parts are available.

However, by the 1st of January 2013 the ULX service concept will change.

From 1st of January the ULX service concept will be “Onsite repair”. That means replacement/exchange of printed circuit boards (PCB) in field.

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New PS DataModule and PumpScanner for Android App


LORENTZ will shortly introduce the PS DataModule (data logger) and PumpScanner Android App.
This combination of an addon board for the PS range of controllers and an application which runs on Android telephones / tablets brings a new level of control and monitoring to LORENTZ solar pump systems.

The PS DataModule is installed in the PS Controller. The PS DataModule measures the key data from the pump system and stores it in on-board memory. Depending on the sample rate up to 10 years of data can be stored.

To view real-time data or to collect historic data from the PS DataModule an application called “PumpScanner” is used. PumpScanner runs on the Android Operating System (smartphone or tablet) and communicates with the PS DataModule via Bluetooth. The communication distance is approximately 10m (30ft). Pump setting changes such as on/off timers and speed control can also be made


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Stanford scientists build the first all-carbon solar cell

Researchers have developed a solar cell made entirely of carbon, an inexpensive substitute for the pricey materials used in conventional solar panels.


Stanford Professor Zhenan Bao talks about the carbon solar cell research.

Stanford University scientists have built the first solar cell made entirely of carbon, a promising alternative to the expensive materials used in photovoltaic devices today. The results are published intoday’s online edition of the journal ACS Nano.

“Carbon has the potential to deliver high performance at a low cost, ” said study senior authorZhenan Bao, a professor of chemical engineering at Stanford.  “To the best of our knowledge, this is the first demonstration of a working solar cell that has all of the components made of carbon. This study builds on previous work done in our lab.”

Unlike rigid silicon solar panels that adorn many rooftops, Stanford’s thin film prototype is made of carbon materials that can be coated from solution. “Perhaps in the future we can look at alternative markets where flexible carbon solar cells are coated on the surface of buildings, on windows or on cars to generate electricity, ” Bao said.

The coating technique also has the potential to reduce manufacturing costs, said Stanford graduate student Michael Vosgueritchian, co-lead author of the study with postdoctoral researcher Marc Ramuz.

“Processing silicon-based solar cells requires a lot of steps, ” Vosgueritchian explained. “But our entire device can be built using simple coating methods that don’t require expensive tools and machines.”

Carbon nanomaterials

The Bao group’s experimental solar cell consists of a photoactive layer, which absorbs sunlight, sandwiched between two electrodes.  In a typical thin film solar cell, the electrodes are made of conductive metals and indium tin oxide (ITO). “Materials like indium are scarce and becoming more expensive as the demand for solar cells, touchscreen panels and other electronic devices grows, ” Bao said.  “Carbon, on the other hand, is low cost and Earth-abundant.”

Mark ShwartzThe Bao group’s all-carbon solar cell consists of a photoactive layer, which absorbs sunlight, sandwiched between two electrodes.

For the study, Bao and her colleagues replaced the silver and ITO used in conventional electrodes with graphene – sheets of carbon that are one atom thick –and single-walled carbon nanotubes that are 10, 000 times narrower than a human hair. “Carbon nanotubes have extraordinary electrical conductivity and light-absorption properties, ” Bao said.

For the active layer, the scientists used material made of carbon nanotubes and “buckyballs” – soccer ball-shaped carbon molecules just one nanometer in diameter.  The research team recently filed a patent for the entire device.

“Every component in our solar cell, from top to bottom, is made of carbon materials, ” Vosgueritchian said. “Other groups have reported making all-carbon solar cells, but they were referring to just the active layer in the middle, not the electrodes.”

One drawback of the all-carbon prototype is that it primarily absorbs near-infrared wavelengths of light, contributing to a laboratory efficiency of less than 1 percent – much lower than commercially available solar cells.  “We clearly have a long way to go on efficiency, ” Bao said.  “But with better materials and better processing techniques, we expect that the efficiency will go up quite dramatically.”

Improving efficiency

The Stanford team is looking at a variety of ways to improve efficiency. “Roughness can short-circuit the device and make it hard to collect the current, ” Bao said. “We have to figure out how to make each layer very smooth by stacking the nanomaterials really well.”

The researchers are also experimenting with carbon nanomaterials that can absorb more light in a broader range of wavelengths, including the visible spectrum.

“Materials made of carbon are very robust, ” Bao said. “They remain stable in air temperatures of nearly 1, 100 degrees Fahrenheit.”

The ability of carbon solar cells to out-perform conventional devices under extreme conditions could overcome the need for greater efficiency, according to Vosgueritchian. “We believe that all-carbon solar cells could be used in extreme environments, such as at high temperatures or at high physical stress, ” he said. “But obviously we want the highest efficiency possible and are working on ways to improve our device.”

“Photovoltaics will definitely be a very important source of power that we will tap into in the future, ” Bao said. “We have a lot of available sunlight. We’ve got to figure out some way to use this natural resource that is given to us.”

Other authors of the study are Peng Wei of Stanford and Chenggong Wang and Yongli Gao of the University of Rochester Department of Physics and Astronomy. The research was funded by the Global Climate and Energy Project at Stanford and the Air Force Office for Scientific Research.

Mark Shwartz is a communications/energy writer at the Precourt Institute for Energy at Stanford University.

Source: Stanford

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First Solar Sets World Record for CdTe Solar PV Efficiency

TEMPE, Ariz.–(BUSINESS WIRE)– First Solar, Inc. (Nasdaq: FSLR) today announced it set a new world record for cadmium-telluride (CdTe) photovoltaic (PV) solar cell efficiency, reaching 17.3 percent with a test cell constructed using commercial-scale manufacturing equipment and materials. The test cell’s performance, confirmed by the U.S. Department of Energy’s National Renewable Energy Lab (NREL), far surpassed the previous record of 16.7 percent set in 2001.

“This is a significant milestone that demonstrates the ongoing potential of our advanced thin-film technology, ” said Dave Eaglesham, Chief Technology Officer at First Solar. “This leap forward in R&D supports our efficiency roadmap for our production modules and will recalibrate industry expectations for the long-term efficiency potential of CdTe technology.”

“This achievement is a direct result of our industry-leading investment in research and development and our commitment to continuous improvement, ” said Rob Gillette, CEO of First Solar. “First Solar’s innovation in both module technology and balance of systems engineering continues to drive us closer to grid parity.”

The average efficiency of First Solar modules produced in the first quarter of 2011 was 11.7 percent, up from 11.1 percent a year earlier, and the company has recorded full-module efficiencies over 13.5 percent, with a 13.4 percent module confirmed by NREL. First Solar’s module efficiency roadmap sets a goal for production-module efficiencies of 13.5-14.5 percent by the end of 2014.

First Solar utilizes a continuous manufacturing process which transforms a sheet of glass into a complete solar module in less than 2.5 hours, which contributes to the company’s industry-leading energy payback time and the low carbon footprint of systems using First Solar PV modules. First Solar also implemented the industry’s first comprehensive, prefunded solar module collection and recycling program. Anyone wishing to dispose of First Solar modules can request collection at any time, at no additional cost, and First Solar will pick up the modules and recycle up to 90% (by mass) of the material for use in new products, including new solar modules and new glass products.

About First Solar, Inc.

First Solar manufactures solar modules with an advanced semiconductor technology, and is a premier provider of comprehensive photovoltaic (PV) system solutions. The company is delivering an economically viable alternative to fossil-fuel generation today. From raw material sourcing through end-of-life collection and recycling, First Solar is focused on creating value-driven renewable energy solutions that protect and enhance the environment. For more information about First Solar, please visit

For First Solar Investors

This release contains forward-looking statements which are made pursuant to the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934. The forward-looking statements in this release do not constitute guarantees of future performance. Those statements involve a number of factors that could cause actual results to differ materially, including risks associated with the company’s business involving the company’s products, their development and distribution, economic and competitive factors and the company’s key strategic relationships and other risks detailed in the company’s filings with the Securities and Exchange Commission. First Solar assumes no obligation to update any forward-looking information contained in this press release or with respect to the announcements described herein.

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