For a solar power plant, storing energy enables utilities to generate power when and as required and not just when sun is shining. There are two popular ways to convert solar energy to electricity – solar photovoltaic (PV) and solar thermal. In a solar PV plant sun’s energy is directly converted to electric energy using solar cells and therefore it requires a battery to store electric energy. A...

Photovoltaics, which utilizes the largest possible energy source to generate electricity, represents one of the most attractive approaches towards renewable energy future. However, the cost of current solar electricity is still too high. Future photovoltaic technologies need to have high power conversion efficiency and can be fabricated with low cost. In this project, we propose novel nanocone ...

in the present work the effect of cu-water nanofluid, as heat transfer fluid, on the performance of a parabolic solar collector was studied numerically. the temperature field, thermal efficiency, mean-outlet temperatures have been evaluated and compared for the conventional parabolic collectors and nanofluid based collectors. further, the effect of various parameters such as fluid velocity, vol...

The optics of axial silicon nanowire solar cells is investigated and compared to silicon thin-film solar cells with textured contact layers. The quantum efficiency and short circuit current density are calculated taking a device geometry into account, which can be fabricated by using standard semiconductor processing. The solar cells with textured absorber and textured contact layers provide a ...

The aim of the paper is to evaluate return of investment (ROI) and cost savings from proposed use of solar systems for residents funded by government grants. The paper deals with proposals for solar energy systems for various use, simple calculations of payback periods of solar systems fi nanced with subsidy and without subsidy. Apart from climatic conditions, chemical composition the of the ab...

In this work, a wire-shaped perovskite solar cell based on TiO2 nanotube (TNT) arrays is demonstrated for the first time by integrating a perovskite absorber on TNT-coated Ti wire. Anodization was adopted for the conformal growth of TNTs on Ti wire, together with the simultaneous formation of a compact TiO2 layer. A sequential step dipping process is employed to produce a uniform and compact pe...

Compositional grading has been widely exploited in highly efficient Cu(In,Ga)Se2, CdTe, GaAs, quantum dot solar cells, and this strategy has the potential to improve the performance of emerging perovskite solar cells. However, realizing and maintaining compositionally graded perovskite absorber from solution processing is challenging. Moreover, the operational stability of graded perovskite sol...