Société Tunisienne de l’Electricité et du Gaz (STEG) is Tunisia’s state-owned, vertically integrated national electricity and gas utility. Created by Law No. 62‑8 of 3 April 1962 as a public, non‑administrative company, it was mandated to take over a fragmented set of private concessionaires and to electrify the country, develop the natural gas network and build the required power and gas infrastructure. Operating under the supervision of the Ministry of Energy, Mining and Energy Transition, STEG is responsible nationwide for the production, transmission, distribution, import and export of electricity and natural gas, and for the production of liquefied petroleum gas.
STEG generates electricity from thermal, hydraulic and wind resources using combined‑cycle, steam and gas‑turbine and hydro plants. In 2011 it operated 24 production units with 3,526 MW of capacity, and by 2023 the installed electrical capacity had risen to 5,982 MW. Over six decades it has raised Tunisia’s overall electrification rate from about 21% to 99.8%, with rural electrification reaching 99.5%. In 2023 it produced 19,313 GWh of electricity and supplied approximately 4.49 million electricity customers and 1.05 million gas customers, supported by a high‑voltage transmission system that includes around 60 substations and some 5,000 km of lines interconnected with neighbouring North African and European systems.
Strategically, STEG is pursuing performance improvement, integration of renewable energy and smart‑grid technologies, and reinforcement of corporate and climate governance. A €300 million sovereign‑guaranteed liquidity and restructuring facility from the European Bank for Reconstruction and Development supports reforms in corporate governance, financial management, risk strategy, renewable energy integration and e‑procurement, aimed at restoring long‑term financial sustainability while maintaining security of supply and expanding clean energy use.
TNactiveUtilityState-Owned· 1 project