Direct Grid announced today the development of a new dual-module 480W micro-inverter product which it will be showcasing at Inter Solar North America at the Moscone Center in San Francisco July 12-14th, booth 7552. The Gemini Series micro-inverter allows photovoltaic design engineers to utilize half the number of micro-inverters in an array, when compared with conventional 1:1 micro-inverter designs, by connecting two modules per Gemini micro-inverter.
Once again, Direct Grid extends its industry lead in total power density by offering a market leading "utility grade" micro-inverter, 240VAC, 60Hz with a maximum output of upwards to 530W. While the Gemini was designed for the ultra-rigorous physical and power level requirements of the utility sector, it is also embraced by the commercial/industrial market, due to the obvious economic advantages of only having to purchase 50% of the micro-inverters for a given design. Initial certifications on the Gemini Series include compliance to UL1741/IEEE1547/CSA for the North American market.
With the Gemini series, the highest power commercial or residential solar modules can be easily connected to the unit in pairs, without any concerns of power limiting. Additional benefits include deployment of fewer modules to achieve desired AC harvest, lower line losses, lower installation costs and higher system reliability - all without significantly detracting from harvest gains associated with individual maximum power point tracking (MPPT). Additionally, unlike most competitive products, the Gemini Series micro-inverter is both frequency flexible and "self tuning" with regard to grid frequency, so it can serve both 50Hz and 60 Hz grid-tied application segments.
"Enabling customers to gain the overwhelming majority of the known advantages of a distributed inverter topology, while cutting the cost in doing so by such a substantial margin, turns Gemini into a disruptive innovation for the market," said Direct Grid Technologies' CEO, Scott Landstrom. "Not only do customers love the idea of using half the micro-inverters to build out the array, but Direct Grid also enables customers to use the higher power modules now available in the industrial market. We have been told that the market is tired of MI solutions that simply "clip" the peak power output of these higher power modules, throwing away valuable energy output that could obviously be utilized. The message from the market is clear that LCOE must continue to decrease, and the new Gemini product is a step-function leap forward in micro-inverter economic competitiveness."
2011年7月6日星期三
2011年3月31日星期四
AU Optronics Corp got very good feedback on the newest technologies it showcased at last week's Big Sight International Photovoltaic Power Generation Expo in Japan.
AUO Solar, the company's solar division, presented two cutting-edge technologies to the world at the Expo, one that mitigates the affects of shading in residential and urban areas and another that resists salt corrosion.
"Visitors to the show were highly interested in AUO's AC module and asked about its launch schedule," AUO spokeswoman Katie Chen wrote in an e-mail from the company's headquarters in Hong Kong.
She said it's expected to be released in the United States in the third quarter of 2011.
The AC Photovoltaic system tracks the sun's maximum power point throughout the day using a micro-inverter attached to each photovoltaic panel rather than a large scale one that all of the panels are connected to, Chen wrote.
The micro-inverter is attached to the panel frame.
"The panel-level MPPT mitigates the effects of partial shading in a PV installation and makes sure the ACPV performs to its maximum power point even under shaded situations," Chen wrote.
The innovative new panel increases the energy yield by 5 to 35 percent depending on the shading conditions it's mitigating, Chen wrote.
"Although this adds a little to the cost of installation," Chen wrote, "the improved energy yield contributes to a lower cost of electricity in the long run."
In addition to the tracking and micro-inverter technology that AU Optronics has implemented to combat shading issues, the company released new organic self-cleaning technology and a technology that is extra resistant to salt corrosion.
"The environmentally friendly self clean function of the smart modules was also well received by the Japanese local market," Chen wrote.
And the panels resistant to salt corrosion, which are found in AUO's new EcoDuo module, have special advantages in Japan's island environment as well as other areas of the country surrounded by salt water and located in hot and humid locations, Chen wrote.
"By passing the salt mist corrosion test, AUO is proving that EcoDuo is able to resist severe environments, especially island climates."
AUO Solar, the company's solar division, presented two cutting-edge technologies to the world at the Expo, one that mitigates the affects of shading in residential and urban areas and another that resists salt corrosion.
"Visitors to the show were highly interested in AUO's AC module and asked about its launch schedule," AUO spokeswoman Katie Chen wrote in an e-mail from the company's headquarters in Hong Kong.
She said it's expected to be released in the United States in the third quarter of 2011.
The AC Photovoltaic system tracks the sun's maximum power point throughout the day using a micro-inverter attached to each photovoltaic panel rather than a large scale one that all of the panels are connected to, Chen wrote.
The micro-inverter is attached to the panel frame.
"The panel-level MPPT mitigates the effects of partial shading in a PV installation and makes sure the ACPV performs to its maximum power point even under shaded situations," Chen wrote.
The innovative new panel increases the energy yield by 5 to 35 percent depending on the shading conditions it's mitigating, Chen wrote.
"Although this adds a little to the cost of installation," Chen wrote, "the improved energy yield contributes to a lower cost of electricity in the long run."
In addition to the tracking and micro-inverter technology that AU Optronics has implemented to combat shading issues, the company released new organic self-cleaning technology and a technology that is extra resistant to salt corrosion.
"The environmentally friendly self clean function of the smart modules was also well received by the Japanese local market," Chen wrote.
And the panels resistant to salt corrosion, which are found in AUO's new EcoDuo module, have special advantages in Japan's island environment as well as other areas of the country surrounded by salt water and located in hot and humid locations, Chen wrote.
"By passing the salt mist corrosion test, AUO is proving that EcoDuo is able to resist severe environments, especially island climates."
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