What Stadler say is https://www.stadlerrail.com/media/pdf/mmer1216e.pdf "designed to allow later installation of energy storage systems". Could be they have something more than an opinion on the subject.
I reckon that just means they have left a hole for it (possibly with the wiring to take power from there) which doesn’t mean that current tech batteries will work.What Stadler say is https://www.stadlerrail.com/media/pdf/mmer1216e.pdf "designed to allow later installation of energy storage systems". Could be they have something more than an opinion on the subject.