Property, Plant and Equipment, Net

9 Months Ended

Sep. 30, 2025

Note 3 – Property, Plant and Equipment, Net

Property, plant and equipment, net are summarized as follows:


	September 30, 2025		December 31, 2024
Production equipment	$	43,704	$	41,750
Laboratory equipment		14,625		12,611
Leasehold improvements		73,258		73,114
Furniture and computer equipment		4,478		4,298
Construction in progress		6,392		5,141
Total cost		142,457		136,914
Accumulated depreciation		(53,460)		(39,706)
Property, plant and equipment, net	$	88,997	$	97,208

Depreciation expenses for dedicated laboratory equipment and production equipment are charged to research and development. Office equipment, leasehold improvements, software, and computer equipment related depreciation expenses are allocated between research and development and selling, general and administrative expenses based on the nature of its use.

Depreciation expense related to property, plant and equipment are summarized as follows:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
Depreciation expense	$	4,623	$	4,014	$	13,754	$	11,980

As of September 30, 2025, the Company is designing a continuous electrolyte production pilot line which it expects to be substantially complete and commissioned by the end of 2026. Additionally, the Company has built out the majority of the cell safety abuse lab to expand internal cell testing capabilities and is enhancing the capabilities of the electrolyte innovation center (the “EIC”). Construction in progress related to property, plant and equipment is summarized as follows:


Construction in progress	September 30, 2025		December 31, 2024
Continuous electrolyte pilot manufacturing line	$	4,252	$	1,194
Cell safety abuse lab		6		835
EIC		344		1,292
Other capital projects		1,790		1,820
Total	$	6,392	$	5,141

Solid Power, Inc. 10-Q