Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment

v3.10.0.1
Property, Plant and Equipment
 6 Months Ended
Jun. 30, 2018
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, Plant and Equipment

Property, plant and equipment at June 30, 2018 and December 31, 2017 consisted of the following:
 
Estimated Useful
Life (in Years)
 
June 30, 2018
 
December 31, 2017
Energy systems
1 - 15 years
 
$
12,125,434

 
$
12,466,642

Machinery and equipment
5 - 7 years
 
1,363,117

 
1,215,951

Furniture and fixtures
5 years
 
104,317

 
205,320

Computer software
3 - 5 years
 
233,478

 
115,253

Leasehold improvements
*
 
450,792

 
440,519

 
 
 
14,277,138

 
14,443,685

Less - accumulated depreciation and amortization
 
 
(2,915,698
)
 
(2,177,974
)
 
 
 
$
11,361,440

 
$
12,265,711

* Lesser of estimated useful life of asset or lease term
Depreciation and amortization expense on property and equipment for the three and six months ended June 30, 2018 and 2017 was $402,336 and $830,416 and $289,339 and $330,808, respectively.