SUMMARY OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES, Revenue Recognition (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Revenue Recognition [Abstract]
Pre-contract costs	$ 0		$ 0		$ 0
Revenue	4,353,305	$ 2,770,226	$ 11,613,962	$ 6,754,906
Minimum [Member]
Revenue Recognition [Abstract]
Payment period on construction contracts			30 days
Maximum [Member]
Revenue Recognition [Abstract]
Payment period on construction contracts			45 days
Workmanship warranties period			5 years
Performance Obligations Satisfied at a Point in Time [Member]
Revenue Recognition [Abstract]
Revenue	0	0	$ 0	0
Performance Obligations Satisfied Over Time [Member]
Revenue Recognition [Abstract]
Revenue	4,353,305	2,770,226	11,613,962	6,754,906
Solar Operations [Member] | Performance Obligations Satisfied Over Time [Member]
Revenue Recognition [Abstract]
Revenue	3,516,055	2,092,228	9,608,729	5,322,072
Electric Operations [Member] | Performance Obligations Satisfied Over Time [Member]
Revenue Recognition [Abstract]
Revenue	605,245	482,566	1,494,356	974,206
Data and Network Operations [Member] | Performance Obligations Satisfied Over Time [Member]
Revenue Recognition [Abstract]
Revenue	$ 232,005	$ 195,432	$ 510,877	$ 458,628