Gentlemen, you need to put things in context. Lima has a long history of trying to build a metro. There were to be five lines but all they got was one and a half. It is a long and sad tale of inept governments.

But this will be their first commuter rail line. Going from diesel to electric is definitely an improvement. Going from the existing sea of vehicles to diesel rail is also an improvement.

If you want to loan them the money to electrify I'm sure you will make many friends.