The new TGV-M already have batteries inside. When you have an issue with the catenary for any reason, the batteries can help keep the train momentum without ris

The new TGV-M already have batteries inside. When you have an issue with the catenary for any reason, the batteries can help keep the train momentum without risks, or if the train had to stop, allow you to start from 0kmh to 80kmh and keep the speed for 5 hours, with air conditioning and all. Your 2 hour trip now last 5 hours, but still. And since in my country every 10 km on major lines you have a "different" catenary circuit, the 80km/h speed will probably last 15 minutes and you can go back to 280 fast enough. I think the first was deployed this year, it it will be be available to export in 2-3 years.