I'm puzzled about this oil policy proposal

[I-Scream]

1. Probably the long game. If oil $ blows up...

legacy internal combustion equipment will be prohibitively expensive to run. That would likely propel development and implementation of alternatively fueled power equipment.

The problem is that in general, people and businesses don't have the stomach for it and the policy probably won't stick. For a policy like that to sustain through future administrations isn't realistic. In my opinion, until a system that provides a reliable, affordable commercial and commuter replacement / alternative is available people won't buy in.