Trans-Sahara Gas pipeline is a regional gas-transport project serving Algeria, Niger and Nigeria. It seeks to move natural gas between producing and consuming markets through a long-distance pipeline, compressor stations and associated facilities. Algeria, Niger and Nigeria renewed cooperation on the Trans-Sahara Gas Pipeline in 2025. The project remained in intergovernmental structuring and commercial preparation rather than physical construction.
<p>The Trans-Sahara Gas Pipeline is a proposed international gas pipeline corridor intended to move Nigerian gas northward through Niger to Algeria, where it would connect to existing Mediterranean export infrastructure. The database contains both a regional Trans-Sahara record and a Nigeria-section record; these should be treated as related components, not independent additive projects.</p><p>The project has a long history, dating back to early Nigeria-Algeria cooperation and renewed through trilateral Nigeria-Niger-Algeria ministerial processes. Recent sources report renewed agreements to update feasibility work and accelerate the project. The strategic case is gas monetisation, regional energy security and potential exports to Europe, but security, financing, reserve commitment, competing pipeline routes and energy-transition demand risks remain material.</p><p>Validation note: public sources commonly cite total project costs in the USD 10-20 billion range, with recent reporting around USD 13 billion. The database capex values for ID 2004 and ID 762 should be checked to avoid double counting the regional pipeline and Nigeria section.</p><p><strong>Sources reviewed:</strong> Global Energy Monitor, Trans-Sahara Gas Pipeline, https://www.gem.wiki/Trans-Sahara_Gas_Pipeline; Pipeline Journal, Algeria, Nigeria and Niger sign agreements to advance TSGP, https://www.pipeline-journal.net/news/algeria-nigeria-niger-sign-agreements-advance-trans-saharan-gas-pipeline-project; Flyvbjerg et al., What causes cost overrun in transport infrastructure projects, https://arxiv.org/abs/1304.4476.</p>
<ol><li>Transport Nigerian gas through Niger to Algeria and onward markets.</li><li>Support regional gas monetisation and industrialisation.</li><li>Diversify African and European gas supply options.</li><li>Prepare a bankable cross-border financing and security framework.</li></ol>