Renewable energy

Articles on renewable energy

IMPROVING THE EFFICIENCY OF PHOTOCONVERTERS WITH CHARGE PUMPS, V. Husiev, V. Starkov, S. Shoferystov
An analysis was carried out of the inertia of the separation and collection of photogenerated charge carriers in a conventional silicon photoconverter (PC) structure with charge pumps in the form of local regions of opposite conductivity type in a floating-potential base. An equivalent circuit in the form of a multi-emitter bipolar transistor is proposed. Experimental results are presented on the effect of charge pumps on the illuminated current-voltage characteristic of the photoconverter.

DEFECT-IMPURITY ENGINEERING IN THE TECHNOLOGY OF SILICON SOLAR CELLS WITH CHARGE PUMPS, V. Husiev, V. Starkov, S. Shoferystov
An analysis was carried out of design and process options for manufacturing silicon solar cells for terrestrial use. It is shown that applying a short-duration thermophotonic and laser treatment to "solar" silicon wafers produces a qualitative change in the carrier transit mechanism in the base of the photoconverter, caused by the formation of large defect-impurity complexes that act as charge pumps. Experimental results are presented on increasing the short-circuit current of solar cells by quasi-pulsed thermophotonic treatment.

"Photoconverters based on charge pumps", V. Husiev, professor, Doctor of Technical Sciences

An analysis was carried out of approaches to improving the efficiency of conventional silicon solar cells. A new physical model of photoconverters based on charge pumps is presented.

An article on the requirement to use domestically produced equipment in order to qualify for the "green tariff", Danylo Nesterov, Serhii Liamets, Ekonomichna Pravda

"..to qualify for the "green tariff" you will have to meet a strict requirement — that a large share of the components and work must be of domestic origin. 30% for projects commissioned after 1 January 2013. 50% — after 1 January 2014.."

Germany sets a new record: 50.6% of a day's energy from solar panels
"Germany has set a new record for the share of energy generated from solar panels. On 9 June 2014, 23.1 GWh of photovoltaic energy was fed into the national grid, accounting for 50.6% of daily consumption, according to the Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE)."