You don't need to peel it unless the peel is thick; why waste the vitamins that reside in the peel and just under it?
My favourite soup bar none is made with ginger. Chop an onion and fry a bit in butter (I use coconut oil though ) then add some coarsely chopped carrots (again, don't peel), vegetable stock and some fresh ginger (as much as you like) and simmer until carrots are soft.
Add the juice of some blood oranges and a bit of their grated peel. Simmer a bit more, add more stock if necessary, cool a bit, then blend. If greedy, reheat and serve, but I always wait a day because the flavour greatly improves.
This recipe loves tweaking, in both quantities and ingredients. Blood oranges aren't necessary (use ordinary ones ), try fresh turmeric or add a cinnamon stick instead of ginger, chicken stock instead of veg, use less onion or none at all. However you cook it, you're sure to love it!