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Solar Energy Systems, Net (Tables)
6 Months Ended
Jun. 30, 2017
Solar Energy Systems Disclosure [Abstract]  
Solar energy systems, net
Solar energy systems, net consists of the following (in thousands):
 
 
June 30, 2017
 
December 31, 2016
Solar energy system equipment costs
 
$
2,793,188

 
$
2,459,856

Inverters
 
287,833

 
260,011

Initial direct costs
 
134,325

 
117,587

Total solar energy systems
 
3,215,346

 
2,837,454

Less: accumulated depreciation and amortization
 
(359,288
)
 
(303,305
)
Add: construction-in-progress
 
95,202

 
95,217

Total solar energy systems, net
 
$
2,951,260

 
$
2,629,366