Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2022

Revenue Recognition

Disaggregation of revenue

	Years Ended
	December 31,
(in thousands)	2022		2021
Charging revenue, retail	$	18,895	$	11,041
Charging revenue, commercial		3,363		2,420
Charging revenue, OEM		941		812
Regulatory credit sales1		5,652		3,023
Network revenue, OEM		2,451		1,510
eXtend revenue		18,443		789
Ancillary revenue2		4,843		2,619
Total revenue	$	54,588	$	22,214

Contract assets and liabilities and liabilities activity

	December 31,		December 31,		Change
(dollars in thousands)	2022		2021		$		%
Contract assets	$	2,861	$	32	$	2,829	*	%
Contract liabilities	$	57,790	$	38,445	$	19,345	50	%

	Years Ended
	December 31,
(in thousands)	2022		2021
Balance as of December 31, 2021	$	38,445	$	12,028
Additions		26,397		30,999
Recognized in revenue		(5,796)		(3,883)
Marketing activities recognized on a net basis		(1,256)		(699)
Balance as of December 31, 2022	$	57,790	$	38,445

Schedule of contract liabilities recognized as revenue.

	Years Ended
	December 31,
(in thousands)	2022		2021
Amounts included in the beginning of period contract liability balance	$	4,605	$	3,138
Amounts associated with performance obligations satisfied in previous periods	$	5	$	186

Schedule of deferred revenue to be recognized

(in thousands)
2023	$	9,410
2024		10,510
2025		11,297
2026		17
	$	31,234