Abstract The present article provides an overview about photovoltaic/thermal systems categorised by the temperature of working fluid: Low-temperature (lower than 60 °C), medium-temperature (between 60 and 90 °C) high-temperature (higher 90 °C). Concerning photovoltaic/thermal-air for low-temperature use, majority studies involve building-integrated non-concentrating with phase change materials ...

We conducted an analytic study of concentrated solar photovoltaic and hot water co-generation based on various solar cell technologies and micro channel heat sinks. By co-optimizing the electricity generation and heat transport in the system, one can minimize the cost of the key materials and compare different tradeoffs as a function of concentration ratio or other parameters. Concentrated sola...

In recent year's renewable energy sources have become a useful alternative for the power generation. The power of photovoltaic is nonlinear function of its voltage and current. It is necessary to maintain the operation point of photovoltaic in order to get the maximum power point (MPP) in various solar intensity. Fuzzy logic controller has advantage in handling non-linear system. Maximum power ...

A solar-wind hybrid power generation system has been presented here. The application based system illustrated in this paper is designed on the basis of the solar and wind data for areas in Northern India. The power generated by the system is intended for domestic use. The most common source of unconventional power in homes is battery based UPS (Uninterrupted power supply) inverter. The UPS inve...

Energy storage makes energy continuously available, programmable, and at power levels different from the original intensity. This study investigates feasibility of compressed-air (CAES) systems on a small scale. In addition to CAES systems, there are two TES (thermal storage) for recovery calories frigories. The micro-CAES + system is designed single-family residential building equipped with ph...

The photovoltaic and bolometric photoresponse in gapped bilayer graphene was investigated by optical and transport measurements. A pulse coincidence technique at 1.5 μm was used to measure the response times as a function of temperature. The bolometric and photovoltaic response times were found to be identical implying that the photovoltaic response is also governed by hot electron thermal rela...

Micro-generation has the potential of reducing CO2 emissions from the power sector. This study investigates the emissions performances of some cases of domestic microgeneration during operation. By comparison to the conventional generation options, savings of 10-45% were found, depending on the energy mix. Waste heat recovery by the micro-CHP was found to be the largest carbon saver in this stu...