Avelia Horizon
| TGV M Avelia Horizon | |
|---|---|
Avelia Horizon TGV M 997 in Gare de Lyon station | |
| Manufacturer | Alstom |
| Built at | La Rochelle (Aytré) / Belfort |
| Family name | Avelia |
| Constructed | 2020– |
| Number under construction | 130 (SNCF Voyageurs); 12 (Proxima); 18 (ONCF); 30 (Eurostar) |
| Formation | 2 power cars + 7-9 passenger cars |
| Operators |
|
| Specifications | |
| Car body construction | Aluminium |
| Train length | Up to 202 m (663 ft) |
| Width | 2.9 or 3.2 m (9.5 or 10.5 ft) |
| Height | 4.32 or 4.7 m (14.2 or 15.4 ft) |
| Floor height | ~430 mm (17 in) |
| Platform height | 127–550 mm (5.0–21.7 in) |
| Maximum speed |
|
| Traction system | Alstom IGBT–VVVF |
| Power output | 7.8 MW (10,500 hp) |
| Transmission | AC-DC-AC |
| Electric systems | |
| Current collection | Pantograph, 2 per power car |
| Braking systems | Dynamic and regenerative (power cars) Electro-pneumatic disk and tread (trainset) |
| Safety systems | ETCS, TVM, KVB |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The Avelia Horizon, called TGV M ("M" for modular) by its main customer, SNCF Voyageurs, is a high-speed passenger train designed and produced by Alstom. It has a broadly similar design to the TGV Duplex sets, with double-decker coaches and a push–pull configuration with a power car on either end. However, it is more energy efficient and provides lower operating costs.
Development of the TGV M originated with SNCF Mobilités's launch of a program to procure a new generation of high-speed trains in 2015. In May 2016, the Alstom-headed Speedinnov joint venture was selected as the winning bidder for the program; on 7 September 2016, SNCF and Alstom signed an agreement to design and build the new trains. In July 2018, SNCF Mobilités placed an initial €2.7 billion order for 100 Avelia Horizon trainsets. Production of the first bodyshells commenced in mid-2020; two years later, dynamic testing was underway. In August 2022, SNCF Voyageurs announced that it had exercised an option for 15 additional quad-current Avelia Horizon trainsets for international services valued at €590 million. In January 2026, SNCF Voyageurs exercised a further option for 15 additional quad-current trainsets for services to Brussels, valued at approximately €600 million.
The TGV M is expected to enter service with the French train operator SNCF Voyageurs in TGV service in April 2026; deliveries will continue into the 2030s. In 2023, SNCF Voyageurs labelled the train as TGV InOui 2025. Versions of the Avelia Horizon have also been ordered by French private operator Proxima, Morocco's national railway operator ONCF, and Eurostar (Thalys).