A consortium of various organisations is now planning concrete exploration work for potential geothermal development on the island of Martinique, a French territory in the Caribbean.
As part of multi-year energy planning, Martinique is gradually working on becoming fossil fuel free. The objective is to promote the development of clean energy utilisation, which includes geothermal energy.
A consortium comprising Territorial Collectivity of Martinique, Ademe (Environment and energy management), EDF and BRGM is exploring the potential geothermal development in Petite Anse on the south-western tip of Martinique.
Martinique is a French territory located in the Eastern Caribbean between St Lucia and Dominica, both also with geothermal development or ambitions.
The public was recently informed on the ambitious planned project in a public meeting at the local nautical club. The population left the evening sensitized and reassured by the various explanations provided by technical experts.
Geothermal energy, the exploitation of the heat stored in the basement, would in a few years’ time generate high-energy electricity in Petite Anse. Conclusive experiences already exist in Montserrat and Dominica.
In Montserrat, hot water of up to 300 degrees Celsius was found at a depth of 2,300 meters with plans to utilise it with a geothermal power plant. The French territory of Guadeloupe currently features the only geothermal power plant in the Caribbean at Bouillante.
The plant was built in the 1980s and derives heat at a depth of 800 meters. The Petite Anse area is one of two sectors in Martinique with indications of a potential active high-temperature geothermal resource.
A deep exploration drilling campaign (1,000 to 2,000m deep) in this area is now essential to verify the presence of a geothermal reservoir and in particular the temperature and flows that could be produced.
To be able to precisely locate these boreholes, it is necessary to carry out several preliminary works, including the realisation of a few reconnaissance boreholes from 100 to 200 metres deep. Consultation with the population will be made before the start of the project.