  In this paper, we provide a time-series distribution test system. This test
system is a fully observable distribution grid in Midwest U.S. with smart
meters (SM) installed at all end users. Our goal is to share a real U.S.
distribution grid model without modification. This grid model is comprehensive
and representative since it consists of both overhead lines and underground
cables, and it has standard distribution grid components such as capacitor
banks, line switches, substation transformers with load tap changer and
secondary distribution transformers. An important uniqueness of this grid model
is it has one-year smart meter measurements at all nodes, thus bridging the gap
between existing test feeders and quasi-static time-series based distribution
system analysis.
