Publication: Charging island homes

Do you think islands can benefit from the use of Electric Vehicles?

It’s quite reasonable to agree on the benefits.

Because of the limited distances, because of the availability of renewables, lack of local fuels and high energy dependence, and because of the environmental impact, electric mobility apparently fits there like a glove.

Besides, resiliency to face weather events by storing energy in the vehicle, and reducing peak electrical demand on normal conditions seem to be economically beneficial.

kreta-1364084 car island

Image taken in Crete by Repsaj on freeimages

The research we recently got published in Energy, focuses on the effect of using the vehicle’s energy to charge the home at peak load and charge the vehicle* during valley.

This is what we found out…

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Offshore wind to float

In a recent article published in Renewable and Sustainable Energy Reviews, the challenges for the future of off-shore wind were discussed, considering Spain as a case.

The need for floating structures is a clear cornerstone for the development of off-shore wind in countries like Spain, where swallow waters are not convenient or restricted.

The development of these technologies to a commercial level will bridge the difference from on-shore connected windpower and off-shore or off-grid generation. Energy harvesting as discussed in this post with multi-use offshore platforms can be envisioned as a next step.

Picture from Yarik Mishin on freeimages.com

Picture from Yarik Mishin on freeimages.com

Excluding the technological and environmental challenges, there are other hurdles.

As it is highlighted usually, the unstable regulatory framework causes a lack of interest for investment, specially if paired with complicated administrative procedures.

Publication: Superconducting Fault Current Limiter

Recently we got published an article on short circuit current limiting on Elevier’s Electric Power Systems Research, were I’m a co-author;

Cover image Electric Power Systems Research

“Performance analysis of a Superconducting Fault Current Limiter in a power distribution substation”, Volume 136, July 2016, Pages 89–99

Antonio Colmenar-Santos, , J.M. Pecharromán-Lázaro, Carlos de Palacio Rodríguez, Eduardo Collado-Fernández

The results of the research and pilot project for this technology are promising. The short circuit current limiting with a superconducting system (SFCL-Superconducting Fault Current Limiter) is an example of FACTS (Flexible AC Transmission System) for the Smart Grid. It allows a real-time response, that is an automatic reaction, reducing short circuit currents, thus avoiding damage to equipment. This enables a more meshed operation while the energy losses are kept low.

The paper presents the operational benefits and performance of an installed system in a distribution network. These benefits are translated into economic terms, with the goal of setting a target price for economic feasibility of such systems. While the difference between the economic target of 100 k€ and the cost of the real project is tenfold, it remains a trigger for market adoption. Moreover, it is likely that economies of scale and technology improvements drive the implementation cost down in the coming years.

The consequence of widespread use of SFCL would be more reliable and resilient distribution networks. We will see more of this coming, in the near future.

The complete article is available for some days on the link: http://authors.elsevier.com/a/1SbPa1M7~0UanK