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"Photovoltaic energy"
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Low-cost solar electric power
This work describes recent breakthroughs that promise major cost reductions in solar energy production in a clear and highly accessible manner. The author addresses the three key areas that have commonly resulted in criticism of solar energy in the past: cost, availability, and variability.
Book
Photovoltaics : system design and practice
With the explosive growth in PV (photovoltaic) installations globally, the sector continues to benefit from important improvements in manufacturing technology and the increasing efficiency of solar cells, this timely handbook brings together all the latest design, layout and construction methods for entire PV plants in a single volume.
eBook
Solar photovoltaic power optimization : enhancing system performance through operations, measurement, and verification
\"This book focuses on the rapidly maturing solar photovoltaic (PV) industry, which is achieving an ever-increasing share of U.S. and global power production. There is a growing need for all stakeholders - owners, maintenance technicians, utilities, and installers - to fully understand the operations and maintenance of PV systems, and how to monitor and diagnose systems post installation. Recognizing this need, this book covers monitoring and diagnostic techniques and technologies, including how to identify the causes of poor performance, and measure and verify power production. Drawing on global case studies, it details how to achieve optimal PV power output in the field through an overview of basic electrical, the solar PV module and Balance of System, and processes and software for monitoring, measurement, and verification. It also provides an overview of the North American Board of Certified Energy Practitioner's (NABCEP) new PV System Inspector credential, which will be outlined in the final chapter. Equipping the reader with the knowledge and confidence required to maximize the output of solar PV installations, Solar Photovoltaics Power Optimization will be an essential resource for PV practitioners and students.\"--Back cover.
Book
Photovoltaic Energy Forecast Using Weather Data through a Hybrid Model of Recurrent and Shallow Neural Networks
In this article, forecast models based on a hybrid architecture that combines recurrent neural networks and shallow neural networks are presented. Two types of models were developed to make predictions. The first type consisted of six models that used records of exported active energy and meteorological variables as inputs. The second type consisted of eight models that used meteorological variables. Different metrics were applied to assess the performance of these models. The best model of each type was selected. Finally, a comparison of the performance between the selected models of both types was presented. The models were validated using real data provided by a solar plant, achieving acceptable levels of accuracy. The selected model of the first type had a root mean square error (RMSE) of 0.19, a mean square error (MSE) of 0.03, a mean absolute error (MAE) of 0.09, a correlation coefficient of 0.96, and a determination coefficient of 0.93. The other selected model of the second type showed lower accuracy in the metrics: RMSE = 0.24, MSE = 0.06, MAE = 0.10, correlation coefficient = 0.95, and determination coefficient = 0.90. Both models demonstrated good performance and acceptable accuracy in forecasting the weekly photovoltaic energy generation of the solar plant.
Journal Article
Energy conversion and green energy storage
\"Energy Conversion and Green Energy Storage presents recent developments in renewable energy conversion and green energy storage. Covering technical expansions in renewable energy and applications, energy storage, and solar photovoltaics, the book features chapters written by global experts in the field. The book serves as a useful reference for researchers, graduate students, and engineers in the field of energy. Providing insights related to various forms of renewable energy, the book discusses developments in solar photovoltaic applications. The book also includes simulation codes and programs, such as Wien2k code, VASP code, and MATLAB®\"-- Provided by publisher.
Book
Energy Intervention Model in Public Education Institutions that Contribute to Sustainable Development
Sustainable development is a global policy that requires the collective effort of the actors present in each territory. In this sense, an energy renewal intervention model is presented at the Juan XXIII Educational Institution in the city of Monteria, Córdoba, Colombia, which results from alliances between international, national, and regional actors, becoming a reference that could serve as a basis. To be replicated in other institutions with characteristics similar to those described in this case. The model generally describes the entire process carried out in the intervention and focuses on the benefits generated for the educational community. Among the main results, the increase in thermal, lighting, and acoustic comfort of the educational community stands out, according to a survey and semi-structured interviews carried out. A fact that could be attributed to the perception of increased comfort in the community is the increase in the student population in 2022, going from 1,478 in 2019 to 1,909 in 2022, with a growth of approximately 29%. Energy renovation also resulted in the improvement of the indoor climate of the classrooms (from 35°C to 27°C), the improvement in the physical infrastructure of the institution, the integration of photovoltaic solar energy, and the subsequent reduction of energy cost.
Journal Article
Design and Impact Analysis of a Grid-Connected Solar Photovoltaic System in Ibri, Oman
This study investigates the feasibility of establishing a grid-connected power system in Ibri, Oman. The primary goal is to address the rising energy demands and contribute to fighting climate change. By leveraging Ibri’s resources, the research highlights the feasibility of such a system, focusing on its economic, technological, and environmental benefits. Using PVsyst software for planning and evaluation, the study assesses climate conditions, component choices, and performance predictions to ensure optimal system performance. The proposed 10.81 kWp solar power system estimates an energy production of 16,981 kWh, achieving a system efficiency of 67.2% based on the performance ratio (PR). The financial analysis estimates a payback period of 7.5 to 8.3 years, with an internal rate of return (IRR) of 11.15% and a net present value (NPV) of $32,024.28, confirming the project’s viability. The system is expected to reduce carbon emissions by 379.939 tons over its lifetime, highlighting the significant ecological benefits of adopting solar energy (SE). The research demonstrates that incorporating PV systems in regions like Ibri is technically viable, economically beneficial, and environmentally advantageous. This study is a valuable resource for energy initiatives, promoting sustainable power production methods and encouraging the broader adoption of renewable technologies for a sustainable future.
Journal Article
Solar electricity basics : powering your home or office with solar energy
A guide that discusses \"how to size, cost, and choose the right system, including off-grid vs. grid-tied vs. grid-tied with battery backup; where to mount a system for maximum performance; what type of modules and inverters to buy; how to install and maintain batteries; cost vs. benefit for solar electric systems; [and] how to connect to the grid, and what type of net metering your area offers\"--Publisher marketing.
Book
Analysis of Photovoltaic Plants with Battery Energy Storage Systems (PV-BESS) for Monthly Constant Power Operation
Photovoltaic generation is one of the key technologies in the production of electricity from renewable sources. However, the intermittent nature of solar radiation poses a challenge to effectively integrate this renewable resource into the electrical power system. The price reduction of battery storage systems in the coming years presents an opportunity for their practical combination with utility-scale photovoltaic plants. The integration of properly sized photovoltaic and battery energy storage systems (PV-BESS) for the delivery of constant power not only guarantees high energy availability, but also enables a possible increase in the number of PV installations and the PV penetration. A massive data analysis with long-term simulations is carried out and indicators of energy unavailability of the combined system are identified to assess the reliability of power production. The proposed indicators allow to determine the appropriate sizing of the battery energy storage system for a utility-scale photovoltaic plant in a planning stage, as well as suggest the recommended operating points made for each month through a set of graphs and indicators. The presence of an inflection zone has been observed, beyond which any increase in storage does not generate significant reductions in the unavailability of energy. This critical zone is considered the sweet spot for the size of the storage, beyond which it is not sensible to increase its size. Identifying the critical point is crucial to determining the optimal storage size. The system is capable of providing reliable supply of constant power in monthly periods while ensuring capacity credit levels above 95%, which increases the penetration of this renewable resource. Despite the fact that the study focuses exclusively on the analysis from an energy perspective, it is important to consider the constraints associated to real storage systems and limit their oversizing.
Journal Article