photovoltaic test Articles

  • Photovoltaics: Basic Design Principles and Components

    If you are thinking of generating your own electricity, you should consider a photovoltaic (PV) system—a way to generate electricity by using energy from the sun. These systems have several advantages: they are cost-effective alternatives in areas where extending a utility power line is very expensive; they have no moving parts and require little maintenance; and they produce electricity ...

  • Performances of photovoltaic water pumping systems: a case study

    This paper presents a mathematical motor-pump model for photovoltaic (PV) applications which allow us to contribute in the studies of PV pumping sizing. The modelled motor-pump characteristic is flow rate-power (Q, P). The model is established for centrifugal pump (CP) coupled to DC motor. The non-linear relation between flow rate and solar power has been obtained experimentally in a first step ...


    By Inderscience Publishers

  • Test Sites And Testing of 3-Sun Mirror Modules

    ABSTRACT The demand for solar photovoltaic cells and modules has far outstripped PV cell supply and module prices are rising. To solve this problem. JX Crystals is developing a 3-sun mirror module that uses 1/3 the cell area to triple module production at a lower cost. Our concentrator module design uses existing planar cells. We simply cut standard SunPower A300 cells into thirds. In ...


    By JX Crystals

  • Building integration of 30 kWp photovoltaic system at University Politehnica of Bucharest, Romania

    A Building Integrated Photovoltaic Power System of 30 kWp was recently installed at University Politehnica of Bucharest, Romania. It is the first grid-connected and largest PV system of the country. With this opportunity, an innovative non-penetrating system that uses the modules and mounting hardware as ballast was designed and implemented. Personnel with no previous experience with the roof PV ...


    By Inderscience Publishers

  • Solar PV Testing

    Introduction The time is now for clean, renewable energy technologies. Favorable government tax credits, a decreased dependency upon oil, and the need to stimulate the economy are just three of the planets that have aligned, favoring the expansion of technologies that harness the sun’s energy. Manufacturers of Solar Photovoltaic (PV) modules and panels strive to improve product effi ...


    By Thermotron Industries

  • An efficient hybrid wave/photovoltaic scheme for energy supply in remote areas

    This paper presents the efficient utilisation of hybrid photovoltaic/wave energy system for desalination water pumping and supplying the local AC and DC loads. The novel hybrid system comprises eight key parts. The PV array and wave energy permanent magnet linear generator (PMLG) as energy sources, novel AC side modulated power filter compensator (MPFC), AC-DC converter, novel DC side green plug ...


    By Inderscience Publishers

  • Application of an artificial neural network for predicting the sizing curve of stand-alone photovoltaic system: a case study

    In this paper, an artificial neural network-based (ANN) prediction of the sizing curve of stand-alone PV systems (SAPV) was developed. Numerical method has been used for constructing the sizing curves for different loss of load probability (LLP) corresponding to 40-sites located in Algeria. The feed-forward neural network (FFNN) is trained considering the geographical coordinate and LLP as ...


    By Inderscience Publishers

  • The entropy matrix generated exergy model for a Photovoltaic heat exchanger under critical operating conditions

    The maximum entropy generation approach is adopted to develop the exergy model for a Photovoltaic (PV) heat exchanger with vertical heat exchange sections under critical operation of buoyancy-induced hybrid airflow. The Photovoltaic (PV) heat exchanger was constructed with two adjacent Photovoltaic (PV) modules with double-glass faces and back panel and assembled on a wooden duct and framing ...


    By Inderscience Publishers

  • Spi-Sun simulator sets the standard

    Solar Simulators are critical to the industry testing photovoltaic modules featuring light sources that closely match the solar spectrum. Spire’s simulators can test the full range of solar modules – including crystalline or thin film. The importance of solar simulation is clear – solar modules must be tested under a standard set of conditions to assure consistency of results. ...


    By Spire Corporation

  • Women Who Run with Tools

    Last February, a group of dedicated and enthusiastic women descended on Tucson, Arizona to learn how to incorporate solar energy into their lives. Though it hasn’t always been this way, women wielding power tools and installing solar electric equipment is becoming more common. For the past three years, Solar Energy International (SEI), an educational non-profit based in Carbondale, Colorado, has ...


    By Solar Energy International

  • Quality and reliability of CPV systems more important than ever

    As innovations such as multi-junction cells with four and more junctions are developed for the concentrated photovoltaic industry, solar simulators will play a critical role in commercialization. In a recent PV Insider industry analysis “The Current Status of CPV”, Joe Schneider, Business Development Manager at Alpha-Omega Power Technologies, explained that ...

  • Solar`s Time to Rise and Shine.

    Photovoltaic efficiency records are being shattered, thanks to recent advances in materials science. Last month, a researcher at the National Renewable Energy Laboratory in Golden, Colo., loaded a postage stamp–sized solar cell onto a tray and placed it under a high-intensity pulse solar simulator. The simulator flashed a 2.5 millisecond pulse of light, and 19 mirrors reflected the ...


    By Ensia

  • A comparative study on solar array parameter extraction methods

    This paper presents a comparative study on different solar array parameter extraction methods such as a modified Newton–Raphson–based technique proposed in this work and two other popular techniques such as Bouzidi's Newton–Raphson method and Villalva's iterative method. A single–diode–five–parameter model is considered in this study for modelling the solar (PV) panel. The parameters of interest ...


    By Inderscience Publishers

  • Helplessly exposed to nature? How lightning storms can be measured

    Each day, there occur about 1,000 thunderstorms with 4-10 million lightning bolts worldwide. In average, 700 people per year are hit by such light discharges, of which 75% of the hits result in long-term damages. Between three and seven cases end fatal. The risk is particularly high in the open field and is fortunately decreasing. The reason for this is that we stay more often inside in cars and ...

  • NNI Publishes Supplement to President`s 2016 Budget

    The National Nanotechnology Initiative (NNI) published on March 11, 2015, its supplement to the President’s 2016 budget submitted to Congress. NNI states that the supplement serves as the NNI annual report. According to the annual report, in 2014, federal agencies invested $1.57 billion in ...


    By Bergeson & Campbell, P.C.

  • Welcome to Net-Zero

    For most people (and for most homes) the likelihood of going through a whole year spending next to nothing on energy is a goal that seems far out of reach. In fact, it is only relatively recently that insulation technologies, coupled with cutting-edge renewable energy tools, have made the concept of a net-zero energy use home anything more than a pipe dream. However, thanks to a program at the ...


    By ASTM International

  • Surface Decontamination of Cadmium Compounds (Cadmium Chloride (CdCl2) and Cadmium Oxide (CdO)) by DeconGel 1101

    OBJECTIVE The surface decontamination efficacy determination of DeconGelTM 1101 on stainless steel, aluminum, carbon steel, and concrete surfaces contaminated with cadmium compounds (cadmium chloride (CdCl2) and cadmium oxide (CdO)) was performed with ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) according to Environmental Protection Agency (EPA) SW-846 Methods: 3005A ...


    By METIS Scientific

  • A Cleaner Energy Future

    As renewable energy plays an increasingly important role in the world’s energy portfolio, the standards of ASTM International Committee E44 are helping to pave the way for innovation in clean energy sources. A growing population and improving living standards around the world are causing significant increases in energy demand and competition for fossil fuels. These escalating energy ...


    By ASTM International

  • Future inside – smart environmental sensing technology

    SHM30 snow depth sensor in Antarctica (photo: Alfred-Wegener-Institut, Helmholtz-Zentrum Bremerhaven) A lot of sensing technologies have changed recently: Ultrasonic wind measurement replaces cups and vane systems, closed anemometer designs offer better protection from ...

  • Green roofs for life

    The planning system, at both local and national levels, is now being used to expand use of green roofs in towns and cities. This policy recognises important benefits including biodiversity, pollution and CO2 removal, thermal insulation and mass, protection of the roof covering and making our cities more attractive places. Measures are also in place requiring sustainable drainage systems (SUDS), ...


    By Latchways PLC

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