Property, Plant and Equipment (Tables)

9 Months Ended

Sep. 30, 2024

Property, plant and equipment at September 30, 2024 and December 31, 2023 consisted of the following:


	Estimated Useful Life (in Years)	September 30, 2024		December 31, 2023
Energy systems	10 - 15 years	$	2,810,232	$	2,810,232
Machinery and equipment	5 - 7 years	1,639,719		1,744,596
Furniture and fixtures	5 years	224,869		212,963
Computer software	3 - 5 years	192,865		192,865
Leasehold improvements	*	2,685		466,789
Construction in progress		786,507		—
		5,656,877		5,427,445
Less - accumulated depreciation and amortization		(3,957,479)		(4,264,868)
Property, plant and equipment, net		$	1,699,398	$	1,162,577

* Lesser of estimated useful life of asset or lease term