Garden shed has electric power

[gurgleenglish]

Hello, I just bought a house and discovered the garden shed right at the back has electric power.

I’m getting a whole house rewire done next week and not sure if I should keep the electric running into the shed or not.

I can’t see myself needing to use electricity in the shed, but wondering if anyone does, and what you use it for?

also, in the future, I want to build an annexe at the back (detached from the house). How much does it cost to get electricity running to the annexe through the garden?

A city in Scotland

We've got electrics to a workshop (garden tools are in a separate area) and the electrics are super useful -charging garden tools and charging and using power tools as well as lighting.