Showing papers in "Renewable Energy Focus in 2020"

TL;DR: In this article, the authors describe measures mainly based on two strategic and policy documents published by the Portuguese authorities that intend to be a guide for the coming years for the reduction of greenhouse gas emissions (GHG).

TL;DR: The proposed WOA works on the searching behavior of humpback whales, which helps to satisfy the objective functions of the problem and is judged by comparing it with presently developed some other meta-heuristic optimization techniques.

TL;DR: The results show that MPSO outperforms these techniques in terms of quality of solution, power loss reduction and voltage profile enhancement.

TL;DR: A novel hybrid optimization technique using differential evolution (DE) and chaos theory is presented in this paper for optimal operation of a microgrid comprising of both renewable and non-renewable energy sources and is capable of producing superior results in terms of cost and pollution.

TL;DR: An Islanded DCMG is presented in which the PV system and the wind system connect with the DC bus through the interfacing devices (DC/DC boost and buck converters respectively) and their duty cycle is controlled by the P&O MPPT algorithm.

TL;DR: In this article, a DC-DC converter based solar fed PV array system for low power applications is discussed and a single diode based solar panel is designed and modelled for this PV array, which is formed by using the resonant inductors and capacitors.

TL;DR: A comprehensive review of the impact of existing individual wind and solar energy policies along with the recently declared hybrid policy in India and how this hybrid policy will affect the techno-economic structure of the existing and new power projects is presented in this article.

TL;DR: This review paper highlights the significant research works of wind farm modelling using optimization techniques and presents a critical evaluation of existing research methodologies used for wind farm layout optimization.

TL;DR: A greenhouse dryer consisting of drying chamber, drying trays, biomass unit and heat exchanger was used in this article, where three energy modes were considered namely solar, biomass and solar-biomass.

TL;DR: In this paper, the authors present a long-term vision for a research program and design methodology that may be able to push floating wind plants toward a lower levelized cost of energy than fixed-bottom offshore wind.

TL;DR: In this paper, the impacts of variation management on the cost-optimal electricity system compositions in four regions with different pre-requisites for wind and solar generation were investigated, and five variation management strategies, involving electric boilers, batteries, hydrogen storage, low-cost biomass, and demand-side management, were integrated into a regional investment model that is designed to account for variability.

TL;DR: In this article, the performance evaluation of a 954,809,kWp photovoltaic array made up of micro-amorphous silicon situated in Nouakchott (the capital of Mauritania) at Sheikh Zayed solar power plant was carried out.

TL;DR: In this paper, the authors focus on community shared solar photovoltaics (PV), an innovative solar energy program design that allows multiple consumers to share the costs and benefits of ownership in an off-site solar PV facility, opening market access to a wider variety of individuals.

TL;DR: In this article, the theoretical analysis of a parallel flow solar air heater having an absorber plate roughened with arc shaped wires has been carried out to study the effects of various operating and system parameters on thermal performance.

TL;DR: In this article, the main aim of this study is to review all these types of solar dryer based on characteristics of the product being dried and technical, economic and environmental aspects.

TL;DR: In this article, the heat transfer, friction factor and efficiency of a thermosyphon type flat plate collector with and without twisted tape inserts were analyzed experimentally, and the results revealed that the heat transferred rate and efficiency increase with the increase of particle volume concentrations.

TL;DR: In this article, the authors examined both the prospects and constraints that exist in the integration of renewable energy systems that would aid in reducing poverty and promote sustainability in Palestine, and suggested some recommendations which when considered would help reduce energy poverty in Palestine.

TL;DR: It is found that the dynamic particle swarm optimization gives the globally optimal solution while the traditional solver produces a locally minimum solution.

TL;DR: A new and robust functional model is proposed based on the prediction intervals approach whose results in term of efficiency (prediction interval coverage probability) and interest are similar or better than classical prediction tools based on bootstrap utilization.

TL;DR: In this article, a review of four national security strategies focused in the power sector is presented, where different approaches in the matter are contrasted and discussed, and the analyzed countries tend to develop strategies focused on exploiting their indigenous energy resources.

TL;DR: The intelligent controller improves the dynamic response of the system and regulates the voltage at the DC distribution bus irrespective of source side or load side disturbances, and gives an excellent dynamic response.

TL;DR: In this article, performance modeling and optimization studies done on concentrated solar power (CSP) technologies and coal-fired power plant hybrid schemes have been classified as low temperature, medium temperature and high temperature hybrids based on the use of the solar heat.

TL;DR: A Multi Objective Problem (MOP) is proposed for optimal allocation of inverter-based renewable Distributed Generations (DGs) that are Fuel Cell and Photovoltaic cell, passive filters considering optimal Distribution Feeder Reconfiguration (DFR), in Microgrids (MGs).

TL;DR: An optimized data-matching algorithm achieves high degrees of accuracy predicting MW from a diverse set of inputs across the year and forecasting MW in the short-term using only historical inputs.

TL;DR: This study evaluated the energy integration of first-generation and second-generation (2G) ethanol operations and the resulting surplus energy and used experimental and published data of higher calorific values of these residues as well of lignin, a solid process stream.

TL;DR: In this article, an optimal maximum allowable temperature for a cooling system of a photovoltaic panel was found, which can reduce the cooling system energy consumption while maintaining thermal efficiency at acceptable levels.

TL;DR: In this paper, the preliminary design of a concentrated solar power (CSP) plant with thermal energy storage (TES) in Al-Khobar, Kingdom of Saudi Arabia is presented.

TL;DR: In this article, a reconfigured wind farm is designed which minimizes the wake loss due to wake effect on downstream turbines and enhances the power generation from the wind farm by using Grey Wolf Optimization (GWO) Technique.

TL;DR: To enable the DG interfacing inverter to supply reactive power to the hosted MG, the inverter rating must be modified to be suitable for power factor less than unity.

TL;DR: In this article, the ECE R-85 standard was used to evaluate the performance and emissions of Iranian bitter almond (BAO) oil and diesel fuel, and the results showed that the maximum brake power increased (about 9.5% compared with diesel fuel) at a load of 20% and a rotational speed of 2000