Energy Assets, Net (Tables)

12 Months Ended

Dec. 31, 2021

Energy assets, net consisted of the following:


	December 31,
	2021		2020
Energy assets (1)	$	1,120,712	$	954,426
Less: accumulated depreciation and amortization	(264,181)		(225,048)
Energy assets, net	$	856,531	$	729,378

(1) Includes financing lease assets (see Note 8), capitalized interest and ARO assets (see tables below).

Schedule Of Depreciation And Amortization Expense Of Energy Assets

The following table sets forth our depreciation and amortization expense on energy assets, net of deferred grant amortization:


	Year Ended December 31,
Location	2021		2020		2019
Cost of revenues (1)	$	43,113	$	38,039	$	35,543

(1) Includes depreciation and amortization expense on financing lease assets. See Note 8.

Capitalized Interest

The following table presents the interest costs relating to construction financing during the period of construction, which were capitalized as part of energy assets, net:


	Year Ended December 31,
	2021		2020		2019
Capitalized interest	$	2,814	$	4,341	$	2,966

Schedule of Energy Liabilities

The liabilities recognized in association with these ESPC assets were as follows:


	December 31,
Location	2021		2020
Accrued expenses and other current liabilities	$	245	$	229
Other liabilities	12,827		10,794
Total ESPC projects liability	$	13,072	$	11,023

Schedule of Asset Acquisitions

We acquired and closed on the following energy projects:


	December 31,
	2021		2020
Number of projects	1		1

Purchase price (1)	$	3,461	$	1,251


Remaining deferred purchase consideration on previously closed projects (2)	$	303	$	1,446

(1) The 2020 purchase price included cash we paid in the amount of $1,031, issuance of a promissory note payable to the sellers of $204, detailed further in Note 9, and $16 of rollover equity in connection with shares of one of our subsidiaries issued to the sellers.
(2) Included in accrued expenses and other current liabilities.

Schedule Of Asset And Liabilities Retirement Obligations

The following tables sets forth information related to our ARO assets and ARO liabilities:


		December 31,
	Location	2021		2020
ARO assets, net	Energy assets, net	$	1,939	$	1,468

ARO liabilities, current	Accrued expenses and other current liabilities	$	6	$	86
ARO liabilities, non-current	Other liabilities	2,342		1,561
		$	2,348	$	1,647


	Year Ended December 31,
	2021		2020		2019
Depreciation expense of ARO assets	$	113	$	78	$	45
Accretion expense of ARO liabilities	$	123	$	93	$	44