CSS Bluestone - Duluth

Of its 4 ports, 2 are DC fast and 2 are Level 2. DC fast ports deliver direct current straight to the battery and are the ones used for quick stops on longer trips. Level 2 ports are 240-volt AC chargers, typically used where a car is parked for an hour or more. That is about 41% above the Minnesota average of 2.8 ports per station. The registry lists 2 connector types: J1772, the standard Level 1/2 AC connector; CCS, Combined Charging System — the J1772-based DC fast connector.

Duluth has 20 charging stations in the DOE registry with 59 ports, the 14th-most of 218 cities and towns in Minnesota. CSS Bluestone - Duluth accounts for 7% of the charging ports in Duluth. ZEF Energy runs 9 stations in Duluth. Statewide, Minnesota has 1,226 stations and 3,485 ports, the 22nd-largest station count of the 51 states and DC. The biggest station in Minnesota, 3m in St. Paul, has 44 ports.

ZEF Energy operates 297 stations in the registry across 24 states, with 208 DC fast and 600 Level 2 ports in total. 200 of those stations are in Minnesota, 16% of the state's 1,226.

“Available” means the station is open and in service according to the DOE registry. Its access code is public, meaning it is listed as open to any driver. It opened on Jun 18, 2026, one of 154 stations in Minnesota with a 2026 open date. The station's record was last updated at the source on Oct 12, 2026.