Energy Delegation

Delegation lets an account share its Energy with another address without transferring any TRX or tokens. The Energy sits in the recipient's wallet, covers their transactions, and returns to the source when the rental period ends.

This is exactly how renting works: you pay for a rental, and Energy is delegated to your address for the duration you chose. It's non-custodial — only the resource is shared, never your keys or funds — and it's what makes short-term, pay-per-use Energy possible.