By rail kilometres, yes, but not by usage. Virtually every line experience heavy traffic (cargo, RE) is electrified, but there are many lines covering branches

By rail kilometres, yes, but not by usage. Virtually every line experience heavy traffic (cargo, RE) is electrified, but there are many lines covering branches of the network where no heavy traffic occurs, which is not electrified. That's what this hydrogen train is for; it's base (LINT) is one of the most common trains used on those "backroad lines". (Coincidentally, the lint is also one of the most uncomfortable trains to ride if you are larger than a twelve year old boy)