Original ResearchPublished 5 October 2026Advancing 100% renewable electricity in Tunisia: techno-economic pathways for integrating solar PV, hydropower, and pumped hydro energy storageHedi Trabelsi · Rym Belgaroui · Houda Hadj Kacem · Younes BoujelbeneFrontiers in Energy Researchdoi 10.3389/fenrg.2026.1921710