Renovation of a transportation facility in Grand Rapids, Michigan. Working plans call for the renovation of a transportation facility.

Question Deadline January 19, 2024 Questions regarding this solicitation are to be submitted in writing to purchasing@grr.org The integrated solar photovoltaic (PV) array will be installed on the roof of the ARFF, this building was constructed in 1984 and modified in 2001. Walls consist of concrete block and roof consists of aluminum metal on purlins. The symmetrical gabled roof clear-span steel framing with 1/12 slope. Columns and beams form one rigid element at 24-foot intervals. No design loading information is available. The ARFF is fed by a Consumers Energy 12,470V primary radial feed that dead ends at the building transformer and is not connected to the Authority Owned electrical primary system. The current system has a consumers energy transformer that changes the 12,470V system to 120/208V three-phase system for use at the building. Per the utility, the maximum draw of the building is 58KW. Energy use at the building is not currently monitored by the Authority. It is metered by the utility and cost of energy is billed to us monthly and paid. The building is not tied into our current digital metering system (which is expected to be brought online in the near future), and there are currently no projects or efforts planned to add this building or its electric usage to this new system. The building's electrical system/usage is not currently monitored by the Airport's EMS/BMS. GFIAA has conducted a glare analysis of the ARFF roof and determined that the array would be in compliance with FAA requirements (add the link to the FAA policy here). The structural as-built drawings indicate that the roof has sufficient strength to support the approximately 4 lbs/square foot weight of the PV array.