33,903 research outputs found

    CDM potential of SPV pumps in India

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    So far, the cumulative number of renewable energy systems such as Solar Photovoltaic (SPV) irrigation pumps in the agriculture sector in India is far below their theoretical potential despite government subsidy programmes. One of the major barriers are the high costs of investments in these systems. The Clean Development Mechanism (CDM) provides industrialized countries with an incentive to invest in emission reduction projects in developing countries to achieve a reduction in CO2 emissions at lowest cost that also promotes sustainable development in the host country. Solar Photovoltaic (SPV) irrigation pumps could be of interest under the CDM because they directly displace greenhouse gas emissions while contributing to sustainable rural development. However, there is only one SPV project under the CDM so far. --Clean Development Mechanism,Agriculture,Renewable Energy,CO2 Emissions,Solar Photovoltaic Pumps,India

    Fabrication feasibility study of a 20 watt per pound solar cell array Final report, 22 Feb. - Dec. 1965

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    Feasibility of large deployable solar photovoltaic cell array for electric propulsion syste

    Long-Term Durability of Solar Photovoltaic Modules

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    Solar photovoltaic (PV) panels experience long-term performance degradation resulting in lower like-per-like efficiencies and performance ratios when compared with their initial performance. Manufacturers of solar photovoltaic modules usually guarantee the life span for more than 20 years. It is therefore necessary to track and mitigate degradation of PV modules over this period to satisfy such guarantees and beyond this period to identify maintenance and repair requirements. Degradation of solar PV modules makes them less efficient, less reliable and, ultimately, inoperative. This paper reviews relevant literature to discuss: Causes of efficiency reductions in photovoltaic cells Ways to achieve long-term durability of solar photovoltaic modules How viability of solar photovoltaic modules is affected by degradation The remedies to solar photovoltaic (PV) degradatio

    Analytical Model for the Optical Functions of Indium Gallium Nitride with Application to Thin Film Solar Photovoltaic Cells

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    This paper presents the preliminary results of optical characterization using spectroscopic ellipsometry of wurtzite indium gallium nitride (InxGa1-xN) thin films with medium indium content (0.38<x<0.68) that were deposited on silicon dioxide using plasma-enhanced evaporation. A Kramers-Kronig consistent parametric analytical model using Gaussian oscillators to describe the absorption spectra has been developed to extract the real and imaginary components of the dielectric function ({\epsilon}1, {\epsilon}2) of InxGa1-xN films. Scanning electron microscope (SEM) images are presented to examine film microstructure and verify film thicknesses determined from ellipsometry modelling. This fitting procedure, model, and parameters can be employed in the future to extract physical parameters from ellipsometric data from other InxGa1-xN films

    Complex Technical Solution for Renewable Energy

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    This paper presents a complex technical solution for implementing renewable energy, namely: wind, solar photovoltaic and hydraulics. Because wind and solar photovoltaic energy habe a highly random character, it is required to find solution to store the product energy for unfavorable periods, without wind or solar radiations. This could be achieved using the third type of renewable energy, the hydraulic one, obtained from an hydroelectric pumped storage plant (HPSP), located in the imediate vicinity of the wind and solar photovoltaic plant

    Critical Assessment of Feed-In Tariffs and Solar Photovoltaic Development in Vietnam

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    Vietnam became the world’s third largest market for solar photovoltaic energy in 2020. Especially after the Vietnamese government issued feed-in tariffs for grid-connected solar photovoltaic systems, the installed capacity of solar photovoltaic applications exploded in 2019. From studies carried out in the relevant literature, it can be said that support policies are highly important for the initial development of the renewable energy industry in most countries. This is especially true in emerging countries such as Vietnam. This paper reviews the feed-in tariffs issued and deployed in different regions of Vietnam for grid-connected solar photovoltaic applications. Moreover, the paper takes a closer look at the costs of electricity production from these systems in relation to the feed-in tariffs issued in Vietnam. The results show that the gap between the levelized cost of electricity and the feed-in tariff for solar photovoltaic electricity is relatively high, particularly in regions with a lower irradiation potential

    Investigation of the energy performance of a novel modular solar building envelope

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    The major challenges for the integration of solar collecting devices into a building envelope are related to the poor aesthetic view of the appearance of buildings in addition to the low efficiency in collection, transportation, and utilization of the solar thermal and electrical energy. To tackle these challenges, a novel design for the integration of solar collecting elements into the building envelope was proposed and discussed. This involves the dedicated modular and multiple-layer combination of the building shielding, insulation, and solar collecting elements. On the basis of the proposed modular structure, the energy performance of the solar envelope was investigated by using the Energy-Plus software. It was found that the solar thermal efficiency of the modular envelope is in the range of 41.78–59.47%, while its electrical efficiency is around 3.51% higher than the envelopes having photovoltaic (PV) alone. The modular solar envelope can increase thermal efficiency by around 8.49% and the electrical efficiency by around 0.31%, compared to the traditional solar photovoltaic/thermal (PV/T) envelopes. Thus, we have created a new envelope solution with enhanced solar efficiency and an improved aesthetic view of the entire building

    Solar PhotoVoltaic

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    The New Hampshire National Guard Training Site located in Strafford, New Hampshire plans to utilize renewable energy to meet the goal of becoming a net zero facility by 2030 for electrical consumption in accordance with the American Institute of Architects 2030 net zero initiative. In order to be considered a net zero facility, all energy consumed would have to be offset by energy supplied by renewable sources. William selected this project because it had some really good lessons learned early on in the project that really helped shape his view of his role as a project manager. Williams’s major takeaway from this project is that communication is king. There was some rough going early on in the project but once the team ironed out their communication things really turned around and the project hit all the milestones and finished on time
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