66% of all rail traffic is already electric.
It has seen massive growth, obviously because like you said it wasn't really hard to add a car full of batteries, or something like the C-train that was always 'hooked up.'
The biggest growth in grid batteries will be as a supplement to already existing renewable energy sources where those sources can't properly tie into the grid because of the variance and unpredictability in generation. One thing we are already seeing is natural gas peaker plants being replaced by battery storage because it is cheaper and far more efficient.
The other thing is, even if battery storage is amazing and works really well, there simply isn't enough production capacity available right now, and that will be a painful part of the growth.
|