sexta-feira, 28 de junho de 2013

New solar cell records

The Energy Department's National Renewable Energy Lab [Myles Steiner] has announced a world record of 31.1% conversion efficiency for a two-junction solar cell under one sun of illumination. (...) The previous record of 30.8% efficiency was held by Alta Devices. The tandem cell was made of a gallium indium phosphide cell atop a gallium arsenide cell, has an area of about 0.25 square centimeters and was measured under the AM1.5 global spectrum at 1,000 W/m2. It was grown inverted, similar to the NREL-developed inverted metamorphic multi-junction (IMM) solar cell -- and flipped during processing. The cell was covered on the front with a bilayer anti-reflection coating, and on the back with a highly reflective gold contact layer.

Sharp Corporation has achieved the world's highest solar cell conversion efficiency of 44.4%, using a concentrator triple-junction compound solar cell. These solar cells are used in a lens-based concentrator system that focuses sunlight on the cells to generate electricity. (...) Sharp's concentrator triple-junction compound solar cells use a proprietary technology that enables the efficient conversion of sunlight into electricity by means of a stack of three photo-absorption layers, the bottommost of which is made from InGaAs (indium gallium arsenide).To achieve a concentrating conversion efficiency of 44.4%, Sharp worked to widen the effective concentrator cell surface and ensure uniformity of width at the interface of the connecting concentrator cell and electrodes.

quinta-feira, 6 de junho de 2013

EU announces provisional duties on Chinese solar products

EC press release
The European Commission announced yesterday that it will impose provisional antidumping duties on wafers, solar cells and modules imported from China. The duties will be valid for a period of six months and will come into force starting on June 6 with no retroactive effect. The Commission decided to introduce the duties according to a »phased approach« starting with an 11.8% tariff for the first 2 months. Following that, the tariff will be raised to 47.6% for the remaining 4 months. The Commission stated that the provisional antidumping duties will counteract unfair trade practices that have harmed the European solar industry. The Commission stressed that the level of the tariffs is significantly lower than the 88% rate at which Chinese manufacturers have been dumping their products on the EU market. Despite the fact that the Commission found that Chinese manufacturers have dumped their products on the market, it also reiterated its commitment to finding an amicable solution to the solar trade dispute through continued negotiations with Chinese companies and the Chinese Chamber of Commerce. To this effect, the Commission said that »provisional duties can be suspended if a negotiated solution is achieved.« The EU will issue a final decision on the antidumping duties on Dec. 5, 2013.

Further news on the subject:

Portugal added only 1.1 MW of PV power in the first quarter

DGEG (Renováveis - Estatísticas Rápidas- Março 2013)
Portugal added just 1.1 of new PV capacity in the first quarter of 2013, according to the latest data from the Portuguese Directorate General for Geology and Energy. The country therefore now has a cumulative installed PV capacity of 226.6 MW. The newly installed capacity in the month of March was of around 900 kW, up from 200 kW installed in the first two months of this year. For comparison, Portugal added 67.8 MW of PV power last year. PV covered 0.7% of the country’s total electricity demand in March, the same value as was registered in February. Portugal currently only grants FITs to PV systems up to 250 kW in size. For 2013, the government has allocated 11 MW of PV capacity for micro-generation systems (up to 3.68 kW). The government has not said how much capacity it will allocate this year for mini-generation installations (up to 250 kW).

As Europe's Dominance Wanes, Others Pick Up Solar PV

Renewable Energy World
Europe's role as the main driver for the global solar photovoltaics (PV) market is coming to an end, concludes the European Photovoltaic Industry Association (EPIA) in its latest report.
"The results show clearly" that Europe's dominance is declining, said the trade body in its Global Market Outlook for Photovoltaics 2013-2017. Europe accounted for more than 70 percent of the world's new PV installations in 2011, while in 2012 this number was around 55 percent, the report found. In 2013, said EPIA, it "is almost certain" that the majority of new global PV capacity will be installed outside Europe, and that this trend will continue.