Summary of significant accounting policies Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Disaggregation of Revenue

The following table further disaggregates our revenue by major source by segment for the years ended December 31, 2021 and 2020.

Year Ended	December 31, 2021
	Products and Services		Energy Production		Total
Products	$	10,133,329	$	—	$	10,133,329
Installation services	938,831		—		938,831
Maintenance services	11,586,763		—		11,586,763
Energy production	—		1,739,150		1,739,150
Total revenue	$	22,658,923	$	1,739,150	$	24,398,073

Year Ended	December 31, 2020
	Products and Services		Energy Production		Total
Products	11,466,716		$	—	$	11,466,716
Installation services	4,872,877		—		4,872,877
Maintenance services	10,077,805		—		10,077,805
Energy production	—		1,837,181		1,837,181
Total revenue	$	26,417,398	$	1,837,181	$	28,254,579

Impairment of Long-Lived Assets

For the years ended December 31, 2021 and December 31, 2020, we recorded impairment of long-lived assets as follows:

Years Ended	December 31, 2021		December 31, 2020
Energy production asset impairment	$	—	$	524,972
Energy production reversal of unfavorable contract liability	—		(478,411)
Patent applications abandonment	7,400		205,345
Long-lived asset impairment	$	7,400	$	251,906