Property and Equipment, net

12 Months Ended

Dec. 31, 2015

Property Plant And Equipment [Abstract]

Property and Equipment, net

Note 7. Property and Equipment, net

Property and equipment, net consists of the following (in thousands):

	December 31,
	2015			2014
Machinery and equipment	$	2,808		$	1,031
Leasehold improvements, furniture, and    computer hardware		10,669			6,386
Vehicles		33,048			8,942
Computer software		19,883			16,431
Total property and equipment		66,408			32,790
Less: accumulated depreciation and    amortization		(21,542	)		(10,595	)
Total solar energy systems, net	$	44,866		$	22,195

Depreciation and amortization expense was $11.2 million, $6.4 million and $3.0 million for the years ended December 31, 2015, 2014 and 2013, respectively.

The Company vehicles are assets under capital leases with a corresponding accumulated amortization of $5.8 million and $1.2 million at December 31, 2015 and 2014, respectively. Amortization expense related to these assets was $5.3 million and $1.2 for the years ended December 31, 2015 and 2014. Prior to December 31, 2013, the Company did not have any assets under capital leases and therefore, did not record amortization expense related to these assets in the year ended December 31, 2013.