Differences in energy taken?

Some of your horses may be bedded in an Equestrian Centre with a shower equipped on the box.
Showers make it so that actions that cost energy are reduced by 10% - so half an hour of Dressage training would be 4.5% instead of 5%, and 8.1 for an action that takes 9.

Not all ECs have showers equipped, but you can search specifically for them in the 'register your horse' page and if all the boxes in that centre have them you will see a shower icon where it shows the benefits.

Thank you!