CAM Variance January 2026

There is a cumulative schedule variance of -$682k in the cost account 402.04.04.04 CE - Standard Module Assembly Site 2 (CMU). The variance is from the assembly and testing of the first 48% of modules and the associated cleanroom consumables.

This variance is expected, primarily due to missing input parts (baseplates). CMU has received baseplates has resumed production in December and January. Shipment of the CuT baseplates from IHEP are still awaiting setup of the proper import/export protocol through Fermilab procurement. CMU is demonstrating the 12 modules / day protocol now.

There is a cumulative cost variance of -$515k in cost account 402.04.04.04 CE - Standard Module Assembly Site 2. This is expected and is consistent with the cumulative schedule variance discussed below. Schedule delays, due to missing input parts, have caused cost variance resulting from labor costs not earning value.

There is a cumulative schedule variance of -$812k in cost account 402.04.04.05 CE - Module Assembly at UCSB. The variance has two components: most (90%) is due to the assembly, testing, and shipping of full-size equivalent odd-sized modules (1-48%); the remainder is for supporting production at other assembly sites. This past month UCSB produced modules with 16/day protocol.

There is a cumulative cost variance of -$1155k in cost account 402.04.04.05 CE - Module Assembly at UCSB. This is expected and is consistent with the cumulative schedule variance discussed above. Schedule delays, due to missing input parts, have caused cost variance resulting from labor costs not earning value.