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BALANCE SHEET COMPONENTS
12 Months Ended
Dec. 31, 2020
BALANCE SHEET COMPONENTS  
BALANCE SHEET COMPONENTS

9.BALANCE SHEET COMPONENTS

Inventory

Inventory consists of the following (in thousands):

December 31, 

    

2020

    

2019

Work in process inventory

$

15,296

$

2,535

Batteries

 

5,547

 

1,045

Total inventory

$

20,843

 

$

3,580

Other Current Assets

Other current assets consist of the following (in thousands):

December 31, 

    

2020

    

2019

Deferred costs with suppliers

$

6,204

$

3,589

Prepaid expenses

 

698

 

868

Utility program deposits

 

891

 

770

Due from related parties

 

123

 

483

Other

 

4

 

Total other current assets

$

7,920

 

$

5,710

Other Noncurrent Assets

Other noncurrent assets consist of the following (in thousands):

December 31, 

    

2020

    

2019

Receivable from SPEs (Note 15)

$

3,583

$

3,161

Deferred SPAC costs

 

1,256

 

Self-generation incentive program deposits

 

1,036

 

864

Investment in VIEs

 

744

 

843

Revolver debt issuance costs

 

73

 

416

Right-of-use assets (Note 6)

 

358

 

947

Property and equipment, net

 

44

 

71

Other

 

1,546

 

380

Total other noncurrent assets

$

8,640

$

6,682

Depreciation expense for property and equipment was immaterial for both the years ended December 31, 2020 and 2019.

Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

December 31, 

    

2020

    

2019

Accrued payables

$

9,799

$

5,493

Accrued interest – notes payable

 

6,149

 

1,757

Other accrued liabilities

 

124

 

57

Total accrued liabilities

$

16,072

$

7,307

Other Current Liabilities

Other current liabilities consist of the following (in thousands):

December 31, 

    

2020

    

2019

System advances

$

640

$

1,493

Lease liabilities – current portion

 

333

 

645

Due to related parties

 

399

 

190

Other

 

217

 

308

Total other current liabilities

$

1,589

$

2,636