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Lorenzo Alfredo Enríquez-García
Industrial Engineering Higher Technical School, Spanish University for Distance Education (UNED), Juan del Rosal St., 12, Madrid 28040, Spain

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Journal article
Published: 18 May 2015 in Energies
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This paper presents a novel methodology for assessing islanding microgrids from the economical and functional perspective, for various stakeholders. The paper proposes the triggers for competitive deployment of microgeneration, storage, microgrid islanding, the market conditions that apply, and discusses the future tendencies and the policy recommendations to foster microgrid benefits. The validation of the proposed scheme is based on real market cases, where the triggers for autogeneration and islanding microgrids are present. Additionally, the new concept of grid independence cycle is presented and analyzed. The policy implications of a situation where grid consumption reduction leads to higher energy prices are presented and discussed. The paper concludes with a summary of prioritized technical and regulatory recommendations, proposed as a result of the assessment.

ACS Style

Antonio Colmenar-Santos; Carlos De Palacio; Lorenzo Alfredo Enríquez-García; África López-Rey. A Methodology for Assessing Islanding of Microgrids: Between Utility Dependence and Off-Grid Systems. Energies 2015, 8, 4436 -4454.

AMA Style

Antonio Colmenar-Santos, Carlos De Palacio, Lorenzo Alfredo Enríquez-García, África López-Rey. A Methodology for Assessing Islanding of Microgrids: Between Utility Dependence and Off-Grid Systems. Energies. 2015; 8 (5):4436-4454.

Chicago/Turabian Style

Antonio Colmenar-Santos; Carlos De Palacio; Lorenzo Alfredo Enríquez-García; África López-Rey. 2015. "A Methodology for Assessing Islanding of Microgrids: Between Utility Dependence and Off-Grid Systems." Energies 8, no. 5: 4436-4454.

Journal article
Published: 28 October 2014 in Energies
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Electric power losses are constantly present during the service life of wind farms and must be considered in the calculation of the income arising from selling the produced electricity. It is typical to estimate the electrical losses in the design stage as those occurring when the wind farm operates at rated power, nevertheless, it is necessary to determine a method for checking if the actual losses meet the design requirements during the operation period. In this paper, we prove that the electric losses at rated power should not be considered as a reference level and a simple methodology will be developed to analyse and foresee the actual losses in a set period as a function of the wind resource in such period, defined according to the Weibull distribution, and the characteristics of the wind farm electrical infrastructure. This methodology facilitates a simple way, to determine in the design phase and to check during operation, the actual electricity losses.

ACS Style

Antonio Colmenar-Santos; Severo Campíez-Romero; Lorenzo Alfredo Enríquez-García; Clara Pérez-Molina; Severo Campíñez-Romero. Simplified Analysis of the Electric Power Losses for On-Shore Wind Farms Considering Weibull Distribution Parameters. Energies 2014, 7, 6856 -6885.

AMA Style

Antonio Colmenar-Santos, Severo Campíez-Romero, Lorenzo Alfredo Enríquez-García, Clara Pérez-Molina, Severo Campíñez-Romero. Simplified Analysis of the Electric Power Losses for On-Shore Wind Farms Considering Weibull Distribution Parameters. Energies. 2014; 7 (11):6856-6885.

Chicago/Turabian Style

Antonio Colmenar-Santos; Severo Campíez-Romero; Lorenzo Alfredo Enríquez-García; Clara Pérez-Molina; Severo Campíñez-Romero. 2014. "Simplified Analysis of the Electric Power Losses for On-Shore Wind Farms Considering Weibull Distribution Parameters." Energies 7, no. 11: 6856-6885.