It's also far more difficult to read the numbers relating to the items in the drop down menu. You have to make an effort to track to the right with your eyes to make sure you are in the same row, whereas before the number was right next to the item. There is no need to have the numbers aligned because they are not for comparison.
There seems to me to be a lot of misplaced trust involved in connecting to Wifi networks. It's easy to set up your own public AP and why not call it "Netork Rail Free Wifi" or something?
If you want to talk about a quantity of energy rather than a rate of energy production/consumption, the units would be either kilowatt hours or joules (1 kWh = 3,600,000 joules).