Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment

v3.21.2
Property, Plant and Equipment
6 Months Ended
Jun. 30, 2021
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment, net
Property, plant and equipment at June 30, 2021 and December 31, 2020 consisted of the following:
Estimated Useful
Life (in Years)
June 30, 2021 December 31, 2020
Energy systems
1 - 15 years
$ 3,556,488  $ 3,526,514 
Machinery and equipment
5 - 7 years
1,495,528  1,448,024 
Furniture and fixtures
5 years
193,698  193,698 
Computer software
3 - 5 years
192,865  192,865 
Leasehold improvements * 450,792  450,792 
    5,889,371  5,811,893 
Less - accumulated depreciation and amortization   (3,864,037) (3,528,047)
  $ 2,025,334  $ 2,283,846 
* 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, 2021 and 2020 was $145,458 and $306,014 and $176,357 and $352,017, respectively.