Operation and Performance of the Amonix High Concentration Photovoltaic System at the University of Nevada, Las Vegas During the Second Year of Operation

Author(s):  
Kenneth W. Stone ◽  
Vahan Garboushian ◽  
Rick Hurt ◽  
Allison Gray ◽  
Robert Boehm ◽  
...  

This paper discusses the operation and performance of the Amonix High Concentration Photovoltaic (HCPV) System at the Center for Energy Research at the University of Nevada, Las Vegas (UNLV) from the start of operation in March 2004. The objectives and current status of this two-phase project are discussed, including: a brief description of the system, daily operation, and system maintenance. Also included are: the performance data of Phase I and Phase II showing a typical daily power profile, the accumulated energy generated, daily peak power and daily generated energy, normalized peak power, normalized energy performance, and an estimate of the annual energy performance based upon the actual measured energy during the operation of the system. System reliability data, in terms of mean-time-between-failure, are also presented.

Solar Energy ◽  
2005 ◽  
Author(s):  
Kenneth W. Stone ◽  
Vahan Garboushian ◽  
Robert Boehm ◽  
Rick Hurt ◽  
Allison Gray ◽  
...  

This paper discusses the installation and operation of the Amonix High Concentration Photovoltaic System at the Center for Energy Research at the University of Nevada, Las Vegas (UNLV). This includes the analysis performed to select of the foundation site location, drilling the foundation, installation of the foundation and pedestal, installation of the drive system, and installation of the concentrating photovoltaic modules. The day-to-day operation of the unit is described including an example of the generated power throughout the day. A summary is presented of the performance of the unit since the start of operation in March of 2004. This includes an example of the daily-generated electrical energy for a month, the monthly-generated energy since the start of the program, the total generated energy, the generating time, the peak power, etc. The result of an analysis of the power and energy generated is given that indicates the system performance has not decreased during this period of operation. Operating reliability data of the unit is presented for the system, subsystems, and major component level.


Author(s):  
Kenneth W. Stone ◽  
Robert Gordon ◽  
David Dutra ◽  
Allison Gray ◽  
Rick Hurt ◽  
...  

This paper discusses the installation, operation, and performance of a high concentration photovoltaic single-plate, multi-junction module developed by Amonix and installed at the Center for Energy Research at the University of Nevada, Las Vegas (UNLV). The paper discusses the objectives and goals of this project and describes the principal of the Fresnel optics, the module, and how it was attached to the Amonix 25-kW unit located at the UNLV Center for Energy Research. Also described are how the module is connected to a load and the measurements taken. Data is presented in the paper showing the module has produced power for over 2200 hours at a power efficiency of 26% to 28.6%. Data is also presented showing the next generation single-plate, multi-junction module achieving an efficiency of nearly 30%.


Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1874
Author(s):  
Rosaura Castrillón-Mendoza ◽  
Paul Andrés Manrique-Castillo ◽  
Javier M. Rey-Hernández ◽  
Francisco J. Rey-Martínez ◽  
Gabriel González-Palomino

The challenge of photovoltaic integration as the basis of an energy generation system has been achieved and carried out by the University Autónoma de Cali, Colombia, using an avant-garde energy technology model. This innovative sustainable campus not only fulfills its purpose as an advanced model of a renewable energy integration system, it also aims at environmental research, e-mobility, and energy efficiency. This paper describes how the university implements the technological innovation of integrating the photovoltaic system installation in a university campus, showing its relevant contribution to the electricity generation in the campus buildings by analyzing the different electrical parameters together with the system performance indicators. The implementation of technological solutions has allowed the generation of a quantity of renewable energy within the campus, supplying a sustainable energy response based on energy efficiency and carbon emissions savings. This innovation has been applied following the international standards for the evaluation of the energy performance of photovoltaic systems (IEC 61724), reaching very optimal values for this type of renewable solution. In this paper, the dynamic monitoring of several parameters has been carried out in order to analyze the energy performance, and an energy simulation has been used to achieve optimal solutions and to obtain the perfect modeling of the system. This study shows how to evaluate the performance of an integration of a photovoltaic system in a smart university campus, according to international standards. It achieves complete viability due to its economic savings, energy efficiency and reduction of carbon emission.


Solar Energy ◽  
2002 ◽  
Author(s):  
Kenneth W. Stone ◽  
Vahan Garboushian ◽  
Herb Hayden

Amonix has designed, manufactured, installed, and tested over 500 kW of high concentrating PV systems based around a concentrating silicon cell that set a new world efficiency record in 1992. This paper describes the development of this product as well as the physical and operating characteristics of the system. The operating characteristics that make this system attractive for grid, distributed, and off-grid are discussed. Data is presented that demonstrates the high daily power generating capability and the energy performance of the concentrating PV system. Other attributes of the system are also discussed such as the automatic/unattended operation, the short installation time, etc. An array installed at Pomona, CA is described, it has operated unattended for over 3 years and is still producing power today.


Author(s):  
Anupama KhareSaxena ◽  
Seema Saxena ◽  
K Sudhakar

In the present work, simulation and energy analysis of a grid-tied 100 kWp solar photovoltaic power plant mounted on an institute's building rooftop in Bhopal city of India are carried out. The present study provides insight into the solar power plant's performance linked to the medium range grid under actual operating conditions in Central India. It is observed that the standard performance ratio and the capacity factor of the plant are 80.72% and 19.27% respectively. The average monthly energy produced is highest in April and lowest in July. Simulation results using different simulation tools have been compared and are shown to be in near agreement with the real calculated values. This plant set-up is expected to gain profit after a period of 5.9 years with a capacity to mitigate 136 tons of CO2 emission annually. Practical application: This study estimates the energy output, system losses and performance parameters for a 100 kWp rooftop grid connected solar photovoltaic system. This helps to check the feasibility of such a system at this location. Also the payback period and reduction in carbon footprint are calculated to highlight the economic and environmental benefits. This would attract public interest for installation of more such plants on rooftops of buildings in the near future.


Author(s):  
Giuseppe Mattia Lo Piccolo ◽  
Adriana Morana ◽  
Aziz Boukenter ◽  
Sylvain Girard ◽  
Youcef Ouerdane ◽  
...  

Author(s):  
David Mahon ◽  
Anthony Clarkson ◽  
Simon Gardner ◽  
David Ireland ◽  
Ramsey Jebali ◽  
...  

In the last decade, there has been a surge in the number of academic research groups and commercial companies exploiting naturally occurring cosmic-ray muons for imaging purposes in a range of industrial and geological applications. Since 2009, researchers at the University of Glasgow and the UK National Nuclear Laboratory (NNL) have pioneered this technique for the characterization of shielded nuclear waste containers with significant investment from the UK Nuclear Decommissioning Authority and Sellafield Ltd. Lynkeos Technology Ltd. was formed in 2016 to commercialize the Muon Imaging System (MIS) technology that resulted from this industry-funded academic research. The design, construction and performance of the Lynkeos MIS is presented along with first experimental and commercial results. The high-resolution images include the identification of small fragments of uranium within a surrogate 500-litre intermediate level waste container and metal inclusions within thermally treated GeoMelt® R&D Product Samples. The latter of these are from Lynkeos' first commercial contract with the UK National Nuclear Laboratory. The Lynkeos MIS will be deployed at the NNL Central Laboratory facility on the Sellafield site in Summer 2018 where it will embark upon a series of industry trials. This article is part of the Theo Murphy meeting issue ‘Cosmic-ray muography’.


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