At the utility, you may have multiple "services"
which are usually metered connection points under
a specific rate contract (e.g. "tariff").
For residential customers, you usually have only
one or a couple of services.
For commercial customers, you can have dozens or
hundreds of services spread across all your locations.
When choosing to authorize data access, you can
pick and choose which services (e.g. meters) you
want to share, or you can choose to share data for
all your services.