9. Debt (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Total debt	$ 111,858	$ 133,096
Less current portion	(55,875)	(56,334)
Noncurrent portion	55,983	76,762
Zeo
Total debt	83,400	100,000
Cat Financial Services
Total debt	22,312	26,250
De Lage Landen Financial Services
Total debt	0	700
Phyllis Rice
Total debt	$ 6,146	$ 6,146

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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