| Schedule of property, plant and equipment. net |
| | | | | | | | | At December 31, | | | 2021 | | 2022 | Land | | $ | 282,000 | | $ | 275,000 | Plant and machinery | | | 858,948 | | | 781,324 | Motor vehicles | | | 65,473 | | | 94,654 | Office equipment | | | 252,150 | | | 381,118 | Power stations(1) | | | 138,533,441 | | | 191,011,142 | | | | | | | | Less: Accumulated depreciation | | | (19,181,277) | | | (25,438,066) | | | | 120,810,735 | | | 167,105,172 | Construction in progress | | | 4,835,751 | | | 3,372,189 | Property, plant and equipment, net | | $ | 125,646,486 | | $ | 170,477,361 |
| (1) | All power stations were self-constructed, except for Project Branston that the Company acquired on September 30, 2022 with an original cost of $42,793,499 (as discussed in Note 3). |
|