Photovoltaic Technologies in recent years have gained immense attention owing to reduced costs an... more Photovoltaic Technologies in recent years have gained immense attention owing to reduced costs and increasing efficiencies. While decades of research in Photovoltaic Thermal (PVT) technologies, producing thermal and electrical energy simultaneously have brought these costs further down, improving a system’s overall performance. PVT collectors consist of PV modules with a thermal absorber bonded/attached underneath them. Excessive solar radiation that is not converted into electricity by the panels is released as heat, causing their temperatures to rise. Rising PV panel temperatures have an adverse effect on their efficiency, particularly for building integrated photovoltaics, that generally lack sufficient ventilation for this heat release. Thermal absorbers for PVT systems, are designed specifically for absorbing the excess heat generated by PV modules. In practise, helping the panels perform better by effectively removing the heat present behind them, with the help of a heat trans...
The fluctuating nature of solar power generation Makes the coupling of energy storage and solar e... more The fluctuating nature of solar power generation Makes the coupling of energy storage and solar energy inevitable. This paper explores the integration of all the typical components of a PV-battery system in one single module, introducing a prototype of the so-called PV-Battery Integrated Module (PBIM). The electrical and thermal performance of the prototype were studied in order to analyse its behaviour under severe testing conditions. The prototype exhibited an appropriate charging efficiency of 95.7% on average, while the battery pack operated safely (at less than $45^\circ\mathrm {C}$). When compared to a conventional system (battery and charge controller in a separated manner), the mean solar panel temperature of the prototype was 9.34% higher. However, in terms of power, the thermal losses in the PBIM resulted in an average increase of just 1.3 W (4.6%) in comparison to a conventional system. The testing validated the applicability of the integrated concept in harsh conditions,...
Photovoltaic Technologies in recent years have gained immense attention owing to reduced costs an... more Photovoltaic Technologies in recent years have gained immense attention owing to reduced costs and increasing efficiencies. While decades of research in Photovoltaic Thermal (PVT) technologies, producing thermal and electrical energy simultaneously have brought these costs further down, improving a system’s overall performance. PVT collectors consist of PV modules with a thermal absorber bonded/attached underneath them. Excessive solar radiation that is not converted into electricity by the panels is released as heat, causing their temperatures to rise. Rising PV panel temperatures have an adverse effect on their efficiency, particularly for building integrated photovoltaics, that generally lack sufficient ventilation for this heat release. Thermal absorbers for PVT systems, are designed specifically for absorbing the excess heat generated by PV modules. In practise, helping the panels perform better by effectively removing the heat present behind them, with the help of a heat trans...
The fluctuating nature of solar power generation Makes the coupling of energy storage and solar e... more The fluctuating nature of solar power generation Makes the coupling of energy storage and solar energy inevitable. This paper explores the integration of all the typical components of a PV-battery system in one single module, introducing a prototype of the so-called PV-Battery Integrated Module (PBIM). The electrical and thermal performance of the prototype were studied in order to analyse its behaviour under severe testing conditions. The prototype exhibited an appropriate charging efficiency of 95.7% on average, while the battery pack operated safely (at less than $45^\circ\mathrm {C}$). When compared to a conventional system (battery and charge controller in a separated manner), the mean solar panel temperature of the prototype was 9.34% higher. However, in terms of power, the thermal losses in the PBIM resulted in an average increase of just 1.3 W (4.6%) in comparison to a conventional system. The testing validated the applicability of the integrated concept in harsh conditions,...
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Papers by Shiwankar Garg