Annual report [Section 13 and 15(d), not S-K Item 405]

Property, plant and equipment

Property, plant and equipment

12 Months Ended

Dec. 31, 2024

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment, net

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


	Estimated Useful Life (in Years)	2024		2023
Energy systems	10 - 15 years	$	2,810,232	$	2,810,232
Machinery and equipment	5 - 7 years	1,598,538		1,744,596
Furniture and fixtures	5 years	224,868		212,963
Computer software	3 - 5 years	192,865		192,865
Leasehold improvements	*	906,739		466,789
		5,733,242		5,427,445
Less - accumulated depreciation and amortization		(3,995,206)		(4,264,868)
Net property, plant and equipment		$	1,738,036	$	1,162,577

* Lesser of estimated useful life of asset or lease term

Depreciation and amortization expense on property and equipment for the years ended December 31, 2024 and 2023 was $354,485 and $454,859, respectively. During the year ended December 31, 2024, we received proceeds of $51,400 from the disposition of certain assets realizing a gain of $12,181. During the year ended December 31, 2023, we received proceeds of $34,655 from the disposition of certain assets and reversed $8,687 of accrued decomissioning costs from a former ADGE energy site, realizing a gain of $36,207.

During the years December 31, 2024 and 2023, we evaluated the ADGE customer contracts and and related assets and did not deem any assets to be impaired.

During the year ended December 31, 2024 and 2023 there were no ADGE contract terminations.