A 100% renewable isolated μ-grid in Mafate

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CIRED 2018 Ljubljana WS - 0178 - 20856.pdf (696.19 KB)

Paper number

0178

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Conference name

CIRED 2018 Ljubljana Workshop

Conference date

7 - 8 June 2018

Conference location

Ljubljana, Slovenia

Peer-reviewed

Yes

Short title

Convener

Authors

beretta, davide, EIFER, Germany
Mocoteguy, Philippe, EIFER, Germany
sessa, giovanna, EIFER, Germany
limagne, matthieu, EDF SEI La Reunion, France
boucher, jean emmanuel, Powidian, France

Abstract

Due to its very specific geographical characteristics (no road access and no connection to any electric grid), the cirque of MAFATE is powered with diesel generators. EDF, funded by the ADEME and in partnership with the local public authority for electrification and POWIDIAN, completed the existing µ-grid with an installation that provides a 100% renewable electricity. Called SAGES, the installation provides electricity to a school, a dispensary and the building of the “Office National des Forêts”. The daily evolutions of their consumption and of the PV production were estimated, via a preliminary on-field study.On this basis, the installation is made of:PV panels (8 kWc), four Li-ion batteries (16 kWh), a water electrolyser associated with an hydrogen storage tank (1.1 m3 @33bars) and a 2,5 kWe fuel cell. Energy balance studies showed that, except in June and July, the batteries were always able to provide the needed power and the fuel cell was not operating. In parallel, in order to estimate the performance evolution of the installation and to prognose its future behavior, the daily energy profiles of all the devices have been modelled. More specifically, the daily evolutions of the end-user power consumption were classified into 14 classes, on the basis of the maximal consumed power level and the cumulated daily energy. Then, for each category, a representative average profile was built. Finally, a cost analysis will be performed to compare the LCOE of the installation with the case in which all the end-user electricity demand is provided by a diesel generator.

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Publisher

AIM

Date

2018-06-07

Published in

CIRED 2018 Ljubljana Workshop on Microgrids and Local Energy Communities

Permanent link to this record

https://www.cired-repository.org/handle/20.500.12455/1224
http://dx.doi.org/10.34890/362

ISSN

2032-9628

ISBN

978-2-9602415-1-8