You're likely dealing with a problem that wasn't on the original schedule. The building is close. Trades are stacked up. Inspections are approaching. The permanent gas service still isn't live, and now temporary CNG or LNG supply has moved from backup...
A temporary gas skid usually shows up when the schedule has already gone sideways. The building is ready for startup, the HVAC contractor needs fuel for testing, the generator has to be commissioned, or the owner is waiting on occupancy while the permanent utility...
