A 100% renewable isolated μ-grid in Mafate
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Paper number
0178
Working Group Number
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
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.
Table of content
Keywords
Publisher
AIM
Date
2018-06-07
Permanent link to this record
https://www.cired-repository.org/handle/20.500.12455/1224
http://dx.doi.org/10.34890/362
http://dx.doi.org/10.34890/362
ISSN
2032-9628
ISBN
978-2-9602415-1-8