France’s overseas territories represent one of the world’s most remarkable geographic portfolios: five inhabited overseas departments and regions (DOM-ROMs), eleven overseas collectivities and territories, and the combined result — the world’s second-largest exclusive economic zone at 11 million km², spanning the Atlantic, Indian, Pacific, and Southern Oceans. For France 2030, these territories are simultaneously strategic assets (the EEZ provides access to the ocean resources of the 21st century), national sovereignty anchors, and living laboratories for the energy transition models the world will need to scale.
The Strategic Significance: France’s Maritime Empire
France’s overseas territories give it access to ocean resources that no other European country possesses:
Exclusive Economic Zones (EEZ) by territory:
| Territory | EEZ (km²) | Strategic Resources |
|---|---|---|
| French Polynesia | 5.03M | Polymetallic nodules, seabed minerals, rare earth elements |
| New Caledonia | 1.74M | World’s 4th largest nickel reserves (critical for batteries) |
| Kerguelen Islands | 0.57M | Krill, potential oil/gas, deep-sea minerals |
| French Guiana | 0.13M | Amazon biodiversity, launch site, gold |
| Martinique + Guadeloupe | 0.14M | Caribbean maritime routes, geothermal |
| La Réunion | 0.32M | Indian Ocean biodiversity, rare earth access |
| Wallis and Futuna | 0.26M | Pacific minerals |
| Clipperton Island | 0.43M | Pacific polymetallic nodules |
| Combined overseas EEZ | ~8.5M | — |
France 2030’s deep-sea exploration and ocean economy objectives are, in significant part, overseas territory objectives: the mineral resources, the marine biodiversity, and the ocean energy potential that France possesses lie overwhelmingly in its overseas EEZ rather than in metropolitan French waters.
French Guiana: The Space Gateway
Centre Spatial Guyanais (Kourou, Guyane): France’s strategic asset in new space — and arguably the single most valuable piece of infrastructure in France’s overseas territories. Kourou’s launch site, operated by ArianeGroup and CNES, is at 5.2° north latitude — the best location on Earth for geostationary orbit launches (close to the equator, maximizing slingshot effect).
France 2030 space investment at Kourou:
- Ariane 6 launch complex (ELA-4): The new Ariane 6 launch infrastructure, constructed for €500M+, supports France 2030’s space sovereignty objectives. First commercial Ariane 6 launch: 2024. Target cadence: 10+ launches/year by 2026.
- Vega-C launch complex (ZLV): The lighter Vega-C launcher (for smaller payloads) uses the same Kourou site. France 2030 supports continued Vega-C operations to maintain ESA’s full range of launch capability.
- New Space startups: Latitude (micro-launcher startup, France 2030 beneficiary) has signed a launch agreement with Kourou for its Zephyr rocket — creating a path for French commercial launch startup graduation from development to operational launches.
The Kourou launch site is also an economic anchor for Guyane: with direct and indirect employment of 5,000+, it represents approximately 15% of Guyane’s GDP. France 2030’s space program is simultaneously industrial policy and overseas territory development policy.
Guyane’s gold mining and Amazon biodiversity: Guyane hosts the largest section of the Amazon rainforest under French sovereignty. France 2030’s deep-sea and biodiversity programs include Amazon biodiversity research programs, natural carbon accounting methodologies (relevant to emerging carbon credit markets), and sustainable forestry innovation.
The illicit gold mining that has caused significant ecological damage in Guyane is a governance challenge that frames France 2030 environmental investments in the territory — legitimate economy development (space, sustainable forestry, ecotourism) as alternatives to illegal extraction.
Guadeloupe and Martinique: Caribbean Energy Transition
The French Antilles — Guadeloupe and Martinique — are France 2030’s most advanced Caribbean energy transition laboratories:
Geothermal energy (Guadeloupe): Guadeloupe’s volcanic geology makes it France’s primary geothermal energy resource. The Bouillante geothermal plant already produces 15 MW — approximately 5% of the island’s electricity. France 2030 and ADEME support expansion to 50 MW, targeting 15% of island electricity from geothermal by 2030.
Caribbean Hydrogen Initiative (Guadeloupe + Martinique): Both islands are developing hydrogen pilots funded under France 2030 ecological transition programs: solar-powered electrolysis (using the islands’ exceptional 2,000+ hours/year irradiance), hydrogen storage as grid balancing, and hydrogen mobility (buses, ferry routes between islands).
SARA (Société Anonyme de Raffinage Antillais): The Caribbean refinery at Martinique is France’s strategic Caribbean fuel reserve. Under France 2030’s industrial decarbonization programs, SARA is evaluating transition from conventional refining to biofuel production using Caribbean agricultural feedstocks — sugarcane bagasse, coconut oil, algae — creating a circular bioenergy system.
Marine biodiversity: The Caribbean coral reef systems around Guadeloupe and Martinique are biodiversity hotspots with commercial potential in cosmetics ingredients (marine collagen, coral-derived antioxidants) and pharmaceutical leads. France 2030 blue economy programs fund marine biotechnology research at the Institut Pasteur Guadeloupe.
La Réunion: Indian Ocean Innovation Hub
La Réunion — the volcanic island in the Indian Ocean — is France’s most economically dynamic overseas department and its Indian Ocean innovation gateway:
Geothermal and renewable energy: La Réunion has developed the world’s best model for island energy transition: already producing 40%+ of electricity from renewables (hydro, solar, wind, bagasse biomass), the island is targeting 100% by 2030. The model — combining diverse renewable sources, smart grid management, and biomass baseload — is directly relevant to France 2030’s energy transition objectives and is being studied as a template for island territories globally.
Hydrogen at La Réunion: ADEME and the Région Réunion are piloting solar hydrogen projects on the western part of the island — using 4-5 hour daily irradiance peaks that exceed European levels to produce excess electricity for electrolysis. France 2030 funds the 1 MW electrolyzer pilot at Saint-Pierre as a template for Indian Ocean island energy sovereignty.
Indian Ocean marine resources: La Réunion’s EEZ extends into one of the Indian Ocean’s most biodiverse regions. France 2030 deep-sea programs fund IFREMER sampling expeditions in the La Réunion EEZ for deep-sea biodiversity mapping — building the scientific knowledge base for any future management of the territory’s seabed resources.
French Polynesia: The Pacific Minerals Question
French Polynesia’s 5 million km² EEZ covers the most mineral-rich section of the Pacific Ocean’s polymetallic nodule fields — cobalt-rich crusts and manganese nodules containing nickel, cobalt, manganese, and rare earth elements in quantities that could dwarf terrestrial reserves.
France has adopted a cautious approach to deep-sea mining — officially maintaining a moratorium on extraction while funding exploration through France 2030’s deep-sea research programs. IFREMER expeditions to French Polynesian nodule fields generate seabed maps, environmental baseline data, and resource estimates that will inform future policy decisions.
The commercial stakes: the cobalt and nickel in French Polynesia’s EEZ, if accessible, could make France self-sufficient in battery critical minerals for the entire France 2030 electric vehicle program — and for European battery manufacturing beyond. This strategic potential justifies continued France 2030 investment in deep-sea research and technology development even without an immediate extraction commitment.
New Caledonia: Nickel and the Battery Minerals Question
New Caledonia is the world’s 4th largest nickel producer and holds approximately 25% of known global nickel reserves. For France 2030’s electric vehicle and battery ambitions — which require massive nickel imports from Indonesia and Philippines — New Caledonian nickel is theoretically a strategic trump card.
The political reality is complex: New Caledonia’s independence movement (supported by the Kanak indigenous community) has destabilized the political environment since the 2018 independence referendum. France 2030’s relationship to New Caledonian nickel is consequently cautious — funding research and sustainable mining technology development while the political status question is resolved.
If New Caledonian nickel were fully accessible to French battery manufacturers under stable conditions, it would transform the economics of France 2030’s battery investment — eliminating dependence on Indonesian nickel processed by Chinese companies, creating a genuinely French-controlled battery supply chain. This strategic potential is not lost on France 2030’s architects.