I think I can answer part of that.

For natural gas, all of November through April is considered peak season, which is accurate as far as usage goes. Why distribution costs more when we use more and there's a reverse economy of scale? I don't know.

I also don't know what exactly the Distribution Adj Charge means, nor why it's almost doubled. Ultimately because the PUC approved it, but I haven't read any report or seen any meeting minutes it anything to explain it.