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Summary of Significant Accounting Policies (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Total accounts receivable | $ 48,063,971 | $ 15,252,162
Bad debt allowance | (5,995,210) | (3,496,911)
Accounts receivable, net | 42,068,760 | 11,755,251
Xuzhou Zhongtai Project [Member] |  |
Total accounts receivable | 10,034,116 | 11,656,371
Bai Chonggong (for Shenqiu and Huayu projects) |  |
Total accounts receivable | 35,415,556 |
Receivable of electricity sales of Erdos [Member] |  |
Total accounts receivable | $ 2,614,299 | $ 3,595,791

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