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Major limitation in the performance of solar cells happens within the photovoltaic material itself: When photons strike the molecules of a solar cell, they transfer their energy, producing quasi-particles called excitons — an energized state of molecules. That energized state can hop from one molecule to the next until it's transferred to electrons in a wire, which can light up a bulb or turn a motor. But as the excitons hop through the material, they are prone to getting stuck in minuscule defects, or traps — causing them to release their energy as wasted light. Now a team of researchers at MIT [...]
Tue, Sep 23, 2014, Continue reading at the source
Initial Orders to Be Used in New Innovative 100kW Turbines AUSTIN, TX–(Marketwired – Sep 23, 2014) – Ideal Power Inc. (NASDAQ: IPWR), a developer of a disruptive power conversion technology, announced today that it has received purchase orders for six of its 30kW battery converters for use in two innovative 100kW wind turbine installations. Ideal Power's battery converter was selected for its improvement in size, weight and efficiency in comparison to other solutions. Installation of these units is expected to be complete in early 2015. This will be the first installation of Ideal Power's products in a wind energy application and represents [...]
Tue, Sep 23, 2014, Continue reading at the source
The European Investment Bank has agreed to provide EUR 23 million (15 billion CFA) to support investment in one of the largest photovoltaic power stations in sub-Saharan Africa. The EUR 70.5 million (46 billion CFA) scheme will be constructed at Zagtouli on the outskirts of Ouagadougou, the capital of Burkina Faso and operated by national electricity utility, SONABEL. The new plant is expected to act as a reference for future solar investment across the continent. Once operational the new solar plant will significantly increase power generation in Burkina Faso, reduce dependence on energy imports from Ivory Coast and Ghana and help [...]
Tue, Sep 23, 2014, Continue reading at the source