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Open AccessArticle

A Methodology for Assessing Islanding of Microgrids: Between Utility Dependence and Off-Grid Systems

1
Industrial Engineering Higher Technical School, Spanish University for Distance Education (UNED), Juan del Rosal St., 12, Madrid 28040, Spain
2
Power Systems Division, Asea Brown Boveri (ABB), San Romualdo 13, Madrid 28035, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Josep M. Guerrero
Energies 2015, 8(5), 4436-4454; https://doi.org/10.3390/en8054436
Received: 18 March 2015 / Revised: 28 April 2015 / Accepted: 12 May 2015 / Published: 18 May 2015
(This article belongs to the Special Issue Microgrids)
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. View Full-Text
Keywords: smart grids; microgrid; network planning; power distribution; grid independence smart grids; microgrid; network planning; power distribution; grid independence
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Colmenar-Santos, A.; De Palacio, C.; Enríquez-García, L.A.; López-Rey, Á. A Methodology for Assessing Islanding of Microgrids: Between Utility Dependence and Off-Grid Systems. Energies 2015, 8, 4436-4454.

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