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Property, plant and equipment, net (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | $ 15,165,864 | $ 691,033
Less: accumulated depreciation | (6,580,876) | (492,296)
Property, plant and equipment, net | 8,584,988 | 198,737
Addition to property and equipment | 3,900,000 |
Transfer from assets under construction to machinery and equipment | 300,000 |
Depreciation expense | 559,101 | 22,508
UltraCell LLC [Member] |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property and equipment with net book value | 10,000.00 |
SerEnergy and FES [Member] |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property and equipment with net book value | 5,360,000 |
Land, Buildings & Leasehold Improvements [Member] |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | 1,888,438 | 15,883
Machinery [Member] |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | 8,756,437 | 561,928
Equipment [Member] |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | 4,090,534 | 113,222
Asset under Construction [Member] |  |
Property, Plant and Equipment, Net, by Type [Abstract] |  |
Property, plant and equipment, gross | $ 430,455 | $ 0

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123413009&loc=d3e4845-128472 + Details
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