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In order to improve the accuracy, validity, reliability and reproducibility of reported power conversion efficiencies for solar cells, the journal, Solar Energy Materials and Solar Cells (SOLMAT), wishes to define how power conversion efficiencies should be reported. This expands upon what is specified in our Guide for Authors. This editorial also serves as a guide on how efficiency data should…
The use of photovoltaic power generation systems is increasing all around the world. However, photovoltaic systems use inverters and other electronics to convert and control DC power from panels to AC power. This may lead to increased power losses, decreased efficiency and power factor, overheating due to higher parasitic currents, and possible damages of the devices designed to work with smoot…
In this paper, performance assessment of various building cogeneration systems is conducted through energy and exergy efficiencies. The cogeneration plants considered include steam-turbine system, gas-turbine system, diesel-engine system, and geothermal system. Here, the cogeneration operation refers to the simultaneous generation of electrical power and heating for buildings (especially for sp…