Inventories (short and long-term) as of January 31, 2022 and October 31, 2021 consisted of the following (in thousands):

(1)

Work-in-process includes the standard components of inventory used to build the typical modules or module components that are intended to be used in future project asset construction or power plant orders or for use under the Company’s service agreements. Included in work-in-process as of January 31, 2022 and October 31, 2021 was $26.5 million and $39.7 million, respectively, of completed standard components and modules.

(2)	Long-term inventory includes modules that are contractually required to be segregated for use as exchange modules for specific project assets.

Raw materials consist mainly of various nickel powders and steels, various other components used in producing cell stacks and purchased components for balance of plant. Work-in-process inventory is comprised of material, labor, and overhead costs incurred to build fuel cell stacks and modules, which are subcomponents of a power platform.

The Company incurred costs associated with excess plant capacity and manufacturing variances of $3.2 million and $2.0 million for the three months ended January 31, 2022 and 2021, respectively, which were included within product cost of revenues on the Consolidated Statements of Operations and Comprehensive Loss. The increase in manufacturing variances is primarily the result of a fixed asset impairment charge of approximately $1.0 million for the three months ended January 31, 2022 (related to a conditioning facility in Danbury, CT, which is being replaced by a new facility in Torrington, CT as a part of our fiscal year 2022 capital investments) and accrued warranty cost of approximately $0.2 million associated with the module sales to KFC discussed above.