Location and Space 2.5 miles south of downtown Milwaukee, WI Single story reinforced brick structure (16,200 ft2 ) No windows to break or basements to flood Steel Truss and Deck Roof Office and conference space (3,200 sq.ft.) 18” raised floor in all network operations sites Security Limited access Ceiling madfaounted lighting No exterior windows in building Emergency exits Non-hazardous area out of flood plain Low crime, semi-residential community Emergency battery pack units with lights

Solid Power Incoming triple-phase service, 1000 Kva, 480 volts with 120/208 available. Raised floor areas contains 6 400 amp power distribution panels for computer and peripheral hookups. Power panels contain special isolated ground system dedicated to computer servers and workstations. Emergency stop stations at each exit allow global shutdown for computer and air handling equipment. Telephones 25 active phones available at each site – Centrex System Wiring for 300 phones AT&T DS 3 and T-1 internet lines available at additional charge Environmental Control 80 ton Liebert and Ed Pac air handling system Isolated power controls Under floor distribution Building automation for control and monitoring