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Accounting Policies, by Policy (Policies) | 3 Months Ended | 12 Months Ended
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Mar. 31, 2024 | Dec. 31, 2023
Accounting Policies, by Policy (Policies) [Line Items] |  |
Basis of Presentation and principles of Consolidation | Basis of Presentation and principles of Consolidation The accompanying condensed consolidated financial statements have been prepared in accordance with GAAP, expressed in U.S. dollars. The accompanying condensed consolidated financial statements reflect all adjustments including normal recurring adjustments, which, in the opinion of the Company’s management, are necessary to present fairly the financial position, results of operations and cash flows for the periods presented in accordance with GAAP. References to GAAP issued by the FASB in these accompanying notes to the financial statements are to the FASB Accounting Standards Codification (“ASC”). The condensed consolidated financial statements have been prepared assuming the Company will continue as a going concern. The Company consolidates all variable interest entities for which it is the primary beneficiary. This analysis focuses on determining whether the Company has the power to direct the activities of the variable interest entities (“VIE”) that most significantly affect the VIE’s economic performance and whether the Company has the obligation to absorb losses, or the right to receive benefits, that could potentially be significant to the VIE. The Company is solely obligated to fund the operations of the AirJoule JV. GE Vernova and all GE-affiliated entities are restricted from any participation in the air-to-water business. The Company determined that AirJoule, LLC is a variable interest entity and that the Company is the primary beneficiary because a de facto agency relationship exists with GE Vernova, and the Company is the most closely associated. Accordingly, the Company consolidates AirJoule, LLC in the condensed consolidated financial statements after eliminating intercompany transactions. For consolidated joint ventures, the non-controlling partner’s share of the assets, liabilities and operations of the joint venture is included in non-controlling interests as equity of the Company. The non-controlling partner’s equity interests are presented as non-controlling interests on the consolidated balance sheets as of March 31, 2024. |
Use of Estimates | Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and reported amounts of expenses during the reporting period. Some of the more significant estimates include estimates of amortization and depreciation, fair values of Subject Vesting Shares and Earnout Shares liability, fair value of goodwill and in-process research and development of AirJoule, LLC, the fair value of the non-controlling interest in AirJoule LLC, income taxes and estimates relating to leases. Due to the uncertainty involved in making estimates, actual results could differ from those estimates which could have a material effect on the financial condition and results of operations in future periods. |
Concentration of Credit Risk | Cash and Concentration of Credit Risk The Company considers all highly liquid investments with a maturity of 90 days or less at the time of purchase to be cash equivalents. The carrying values of cash and cash equivalents approximate their fair values due to the short-term nature of these instruments. As of March 31, 2024 and December 31, 2023, there were no cash equivalents on the Company’s condensed consolidated balance sheets. The Company maintains cash balances at financial institutions that may exceed the Federal Deposit Insurance Corporation’s insurance limits. The amounts over these insured limits as of March 31, 2024 and December 31, 2023 were $1,629,492 and $114,254, respectively. The Company mitigates this concentration of credit risk by monitoring the credit worthiness of the financial institutions. No losses have been incurred to date on any deposits. |
Business Combinations | Business Combinations The Company evaluates whether acquired net assets should be accounted for as a business combination or an asset acquisition by first applying a screen test to determine whether substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset or group of similar identifiable assets. If so, the transaction is accounted for as an asset acquisition. If not, the Company applies its judgement to determine whether the acquired net assets meet the definition of a business by considering if the set includes an acquired input, process, and the ability to create outputs. The Company accounts for business combinations using the acquisition method when it has obtained control. The Company measures goodwill as the fair value of the consideration transferred, including the fair value of any non-controlling interest recognized, less the net recognized amount of the identifiable assets acquired and liabilities combined, all measured at their fair value as of the acquisition date. Transaction costs, other than those associated with the issuance of debt or equity securities, that the Company incurs in connection with a business combination are expensed as incurred. Any contingent consideration is measured at fair value at the acquisition date. For contingent consideration that does not meet all the criteria for equity classification, such contingent consideration is required to be recorded at its initial fair value at the acquisition date, and on each balance sheet date thereafter. Changes in the estimated fair value of liability-classified contingent consideration are recognized on the consolidated statements of operations in the period of change. When the initial accounting for a business combination has not been finalized by the end of the reporting period in which the transaction occurs, the Company reports provisional amounts. Provisional amounts are adjusted during the measurement period, which does not exceed one year from the acquisition date. These adjustments, or recognition of additional assets or liabilities, reflect new information obtained about facts and circumstances that existed at the acquisition date that, if known, would have affected the amounts recognized at that date. |
Non-controlling Interests | Non-controlling Interests The Company recognizes non-controlling interests related to its consolidated VIEs in the condensed consolidated balance sheets as a component of equity, separate from the Company’s stockholders’ equity. Changes in the Company’s ownership interest in a consolidated VIE that do not result in a loss of control are accounted for as equity transactions. The non-controlling interests related to its consolidated VIEs issued in a business combination are initially recorded at fair value. The Company records adjustments to non-controlling interests for the allocable portion of income or loss to which the non-controlling interest holders are entitled based upon their portion of the subsidiaries they own. Distributions to holders of non-controlling interests are adjusted to the respective non-controlling interest holders’ balance. The amount of net loss attributable to non-controlling interests is included in consolidated net loss on the face of the condensed consolidated statements of operations. |
Property and Equipment | Property and Equipment Property and equipment is carried at cost less accumulated depreciation and includes expenditures that substantially increase the useful lives of existing property and equipment. Maintenance, repairs and minor renovations are charged to expense as incurred. When property and equipment is retired or otherwise disposed of, the related costs and accumulated depreciation are removed from their respective accounts, and any difference between the sale proceeds and the carrying amount of the asset is recognized as a gain or loss on disposal in the statements of income. Depreciation is computed using the straight-line method over the estimated useful lives of the various classes of depreciable assets. The lives used in computing depreciation for significant asset classes are as follow:
|  | Estimated useful lives
Machinery and Equipment |  | 3 years
Vehicles |  | 3 years
The estimated useful lives and depreciation methods are reviewed at each year-end, with the effect of any changes in estimates accounted for prospectively. All depreciation expenses are included with depreciation and amortization in the condensed consolidated statements of operations. |
Goodwill | Goodwill Goodwill is recognized and initially measured as any excess of the acquisition-date consideration transferred in a business combination or reverse capitalization over the acquisition-date amounts recognized for the net identifiable assets acquired. Goodwill is not amortized but is tested for impairment annually, or more frequently if an event occurs or circumstances change that would more likely than not result in an impairment of goodwill. The impairment assessment includes an evaluation of various reporting units, which is an operating segment or one reporting level below the operating segment. First, the Company assesses qualitative factors to determine whether or not it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If the Company concludes that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, the Company conducts a quantitative goodwill impairment test comparing the fair value of the applicable reporting unit with its carrying value. If the carrying amount of the reporting unit exceeds the fair value of the reporting unit, the Company recognizes an impairment loss in the condensed consolidated statement of operations for the amount by which the carrying amount exceeds the fair value of the reporting unit. The Company performs its annual goodwill impairment test at October 1. No impairment loss was recognized as of March 31, 2024. |
In-Process Research & Development | In-Process Research & Development In accordance with ASC Topic 350, Intangibles — Goodwill and Other (“ASC Topic 350”), goodwill and acquired IPR&D are determined to have indefinite lives and, therefore, are not amortized. Instead, they are tested for impairment annually, in our fourth quarter, and between annual tests if we become aware of an event or a change in circumstances that would indicate the carrying value may be impaired. In-Process Research and Development (“IPR&D”) acquired in a business combination is capitalized as indefinite-lived assets on our consolidated balance sheets at the recognition date fair value. IPR&D relates to amounts that arose in connection with the consolidation of AirJoule, LLC. Once the project is completed, the carrying value of the IPR&D is reclassified to other intangible assets, net and is amortized over the estimated useful life of the asset. Post-acquisition research and development expenses related to the IPR&D projects are expensed as incurred. The projected discounted cash flow models used to estimate the fair values of our IPR&D assets, acquired in connection with AirJoule, LLC, reflect significant assumptions regarding the estimates a market participant would make in order to evaluate the development asset, including: (i) probability of successfully completing and obtaining regulatory approval; (ii) market size, market growth projections, and market share; (iii) estimates regarding the timing of and the expected costs to commercialization; (iv) estimates of future cash flows from potential product sales; and (v) a discount rate. These assumptions are based on significant inputs not observable in the market and thus represent Level 3 measurements within the fair value hierarchy. The use of different inputs and assumptions could increase or decrease our estimated discounted future cash flows, the resulting estimated fair values and the amounts of related impairments, if any. The annual, or interim (if events or changes in circumstances indicate that it is more likely than not that the asset is impaired), IPR&D impairment test is performed by comparing the fair value of the asset to the asset’s carrying amount. When testing indefinite-lived intangibles for impairment, we may assess qualitative factors for its indefinite-lived intangibles to determine whether it is more likely than not that the asset is impaired. Alternatively, we may bypass this qualitative assessment for our indefinite-lived intangible asset and perform the quantitative impairment test that compares the fair value of the indefinite-lived intangible asset with the asset’s carrying amount. If IPR&D becomes impaired or is abandoned, the carrying value of the IPR&D is written down to the revised fair value with the related impairment charge recognized in the period in which the impairment occurs. If the carrying value of the asset becomes impaired as the result of unfavorable data from any ongoing or future processes, changes in assumptions that negatively impact projected cash flows, or because of any other information regarding the prospects of successfully developing or commercializing our programs, we could incur significant charges in the period in which the impairment occurs. No impairment loss was recognized as of March 31, 2024. |
Long-Lived Asset Impairment | Long-Lived Asset Impairment The Company evaluates the recoverability of the carrying value of long-lived assets whenever events or circumstances indicate the carrying amount may not be recoverable. If a long-lived asset is tested for recoverability and the undiscounted estimated future cash flows expected to result from the use and eventual disposition of the asset is less than the carrying amount of the asset, the asset cost is adjusted to fair value, and an impairment loss is recognized as the amount by which the carrying amount of a long-lived asset exceeds its fair value. No impairment loss was recognized for the three months ended March 31, 2024 and 2023. |
Leases | Leases The Company determines if an arrangement is a lease at inception. Operating lease right-of-use asset (“ROU asset”) and short-term and long-term lease liability are included on the face of the condensed consolidated balance sheets. ROU asset represents the right to use an underlying asset for the lease term and lease liability represents the Company’s obligation to make lease payments arising from the lease. An operating lease ROU asset and liability are recognized at the commencement date based on the present value of lease payments over the lease term. As typically the Company’s leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available at commencement date over the respective lease term in determining the present value of lease payments. The Company’s lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term. For lease agreements with terms less than 12 months, the Company has elected the short-term lease measurement and recognition exemption, and it recognizes such lease payments on a straight-line basis over the lease term. |
Warrants | Warrants The Company determines the accounting classification of warrants it issues as either liability or equity classified by first assessing whether the warrants meet liability classification in accordance with ASC 480-10, Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity (“ASC 480”), then in accordance with ASC 815-40 (“ASC 815”), Accounting for Derivative Financial Instruments Indexed to, and Potentially Settled in, a Company’s Own Stock. In order for a warrant to be classified in stockholders’ deficit, the warrant must be (i) indexed to the Company’s equity and (ii) meet the conditions for equity classification. If a warrant does not meet the conditions for stockholders’ deficit classification, it is carried on the condensed consolidated balance sheets as a warrant liability measured at fair value, with subsequent changes in the fair value of the warrant recorded in other non-operating losses (gains) in the consolidated statements of operations. If a warrant meets both conditions for equity classification, the warrant is initially recorded, at its relative fair value on the date of issuance, in stockholders’ deficit in the condensed consolidated balance sheets, and the amount initially recorded is not subsequently remeasured at fair value. |
Income Taxes | Income Taxes Prior to the Business Combination on March 14, 2024, the Company was a limited liability company (“LLC”) and treated as a partnership for income tax purpose. As a Partnership, the Company was not directly liable for federal income taxes. As of the date of the Business Combination, the operations of the Company ceased to be taxed as a partnership resulting in a change in tax status for federal and state income tax purposes. The Company follows the asset and liability method of accounting for income taxes under ASC Topic 740, Income Taxes (“ASC 740”). Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that included the enactment date. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized. ASC 740 prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. For those benefits to be recognized, a tax position must be more likely than not to be sustained upon examination by taxing authorities. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as income tax expense. Management has evaluated the Company’s tax positions, including its previous status as a pass-through entity for federal and state tax purposes, and has determined that the Company has taken no uncertain tax positions that require adjustment to the condensed consolidated financial statements. The Company’s reserve related to uncertain tax positions was zero as of March 31, 2024 and December 31, 2023. There were no unrecognized tax benefits and no amounts accrued for interest and penalties as of March 31, 2024 and December 31, 2023. The Company is currently not aware of any issues under review that could result in significant payments, accruals or material deviation from its position. |
Research and Development Cost | Research and Development Cost The Company accounts for research and development cost (“R&D”) in accordance with FASB ASC Topic 730, “Research and Development.” R&D represents costs incurred in performing research aimed at the discovery of new knowledge and the advancement of techniques to bring significant improvements to products and processes. Costs incurred in developing a product include consulting, engineering, construction and costs incurred to build prototypes. |
Fair Value of Financial Instruments | Fair Value of Financial Instruments Fair value is the price that would be received to sell an asset, or the amount paid to transfer a liability in an orderly transaction between market participants at the measurement date. There is a fair value hierarchy that prioritizes the inputs used to measure fair value. The hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). The Company classifies fair value balances based on the observability of those inputs. The three levels of the fair value hierarchy are as follows:
|  | Level 1 — |  | Inputs based on unadjusted quoted market prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.
|  | Level 2 — |  | Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets or liabilities in active markets or quoted prices for identical or similar instruments in markets that are not active or for which all significant inputs are observable or can be corroborated by observable market data.
|  | Level 3 — |  | Inputs reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. The inputs are both unobservable for the asset and liability in the market and significant to the overall fair value measurement.
In some circumstances, the inputs used to measure fair value might be categorized within different levels of the fair value hierarchy. In those instances, the fair value measurement is categorized in its entirety in the fair value hierarchy based on the lowest level input that is significant to the fair value measurement. The Company establishes the fair value of its assets and liabilities using the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date and establishes a fair value hierarchy based on the inputs used to measure fair value. The recorded amounts of certain financial instruments, including accounts payable, accrued expenses, and other current liabilities approximate fair value due to their relatively short maturities. See Note 11 — Fair Value Measurements for measurements of the Earnout Shares, True Up Shares and Subject Vesting Shares, measured utilizing level 3 inputs as of March 31, 2024 and March 14, 2024. |
Earnout Shares Liability | Earnout Shares Liability In connection with the reverse recapitalization and pursuant to the Business Combination Agreement, eligible former Legacy Montana Equityholders are entitled to receive additional shares of Common Stock upon the Company achieving certain Earnout Milestones (as described in the Merger Agreement) (the “Earnout Shares”). The settlement of the Earnout Shares to the holders of Legacy Montana common units contains variations in something other than the fair value of the issuer’s equity shares. As such, management determined that they should be classified as a liability and recognized at fair value at each reporting period with changes in fair value included in earnings. We estimated fair value of the Earnout Shares with a Monte Carlo simulation using a distribution of potential outcomes for expected earnings before interest, taxes, depreciation and amortization (“EBITDA”) and stock price at expected commission dates, utilizing a correlation coefficient for EBITDA and stock price, and assuming $50 million of Annualized EBITDA per production line, with six production lines commissioned over a five-year period. EBITDA was discounted to the valuation date with a weighted average cost of capital estimate and forecasted to each estimated commission date. Earnout mechanics at each estimated commission date were assessed, and if the Earnout Thresholds were achieved, the future value of the Earnout Shares was discounted to the valuation date utilizing a risk-free rate commensurate with the overall term. The commission dates used reflected management’s best estimates regarding the time to complete full construction and operational viability of a production line, including all permitting, regulatory approvals and necessary or useful inspections. The Earnout term of 5 years and the Earnout mechanics represent contractual inputs. The contingent Earnout Shares liability involves certain assumptions requiring significant judgment and actual results may differ from assumed and estimated amounts. The Company determined the Earnout Shares associated with the Holders of Legacy Montana options are accounted for as compensation expense under ASC 718. See “Share-Based Compensation” below. |
Derivative Financial Instruments and Other Financial Instruments Carried at Fair Value | Derivative Financial Instruments and Other Financial Instruments Carried at Fair Value The Company does not use derivative instruments to hedge exposures to cash flow, market, or foreign currency risks. The Company evaluates all of its financial instruments, including the True Up Shares issued in connection with the Subscription Agreement and the Subject Vesting Shares issued in connection with the Business Combination, to determine if such instruments are derivatives or contain features that qualify as embedded derivatives, pursuant to ASC 480 and FASB ASC Topic 815, “Derivatives and Hedging” (“ASC 815”). The classification of derivative instruments, including whether such instruments should be recorded as liabilities or as equity, is re-assessed at the end of each reporting period. The True Up Shares issued under the Subscription Agreement do not qualify as equity under ASC 815-40; therefore, the Class A common stock (the “True Up Shares”) is required to be classified as a liability and measured at fair value with subsequent changes in fair value recorded in earnings. Changes in the estimated fair value of the derivative liability is recognized as a non-cash gain or loss on the condensed consolidated statements of operations. The fair value of the derivative liability is discussed in Note 11. The Subject Vesting Shares liability was an assumed liability of XPDB in the Merger as described in Note 4 — Recapitalization. The Subject Vesting Shares vest and are no longer subject to forfeiture as described in Note 4. They do not meet the “fixed-for-fixed” criterion and thus are not considered indexed to the issuer’s stock. As such, management determined that the Subject Vesting Shares should be classified as a liability and recognized at fair value at each reporting period with changes in fair value included in earnings. The estimated fair value of the Subject Vesting Share liability was determined utilizing a Monte Carlo simulation, with underlying forecast mathematics based on geometric Brownian motion in a risk-neutral framework. The Calculation of the value of the Subject Vesting Shares considered the $12.00 and $14.00 vesting conditions in addition to the vesting related to the Earnout Milestone Amount. The Subject Vesting Shares liability involves certain assumptions requiring significant judgment and actual results may differ from assumed and estimated amounts. See Note 11 — Fair Value Measurements. |
Share-Based Compensation | Share-Based Compensation The Company accounts for share-based compensation arrangements granted to employees in accordance with ASC Topic 718, “Compensation: Stock Compensation,” by measuring the grant date fair value of the award and recognizing the resulting expense over the period during which the employee is required to perform service in exchange for the award. Equity-based compensation expense is only recognized for awards subject to performance conditions if it is probable that the performance condition will be achieved. The Company accounts for forfeitures when they occur. The Company estimates the fair value of stock option awards subject to only a service condition on the date of grant using the Black-Scholes valuation model. The Black-Scholes model requires the use of highly subjective and complex assumptions, including the option’s expected term, price volatility of the underlying stock, risk-free interest rate and the expected dividend yield of the underlying common stock, as well as an estimate of the fair value of the common stock underlying the award. The Company estimates the fair value of Earnout Shares awards underlying stock options, which is considered a compensatory award and accounted for under ASC 718, Share-Based Compensation, using the Monte-Carlo simulation model. The Monte-Carlo simulation model was selected as the valuation methodology for the Earnout Shares due to the path-dependent nature of triggering events. Under ASC 718, the award is measured at fair value at the grant date and expense is recognized over the time-based vesting period (the triggering event is a market condition and does not impact expense recognition). The Monte-Carlo model requires the use of highly subjective and complex assumptions, estimates and judgements, including the current stock price, volatility of the underlying stock, expected term the risk-free interest rate, the selection of comparable companies, and the probability of possible future events. Changes in any or all of these estimates and assumptions or the relationships between those assumptions impact our valuations as of each valuation date and may have a material impact on the valuation of Common Stock. An increase of 100-basis points in interest rates would not have a material impact on the Company’s stock-based compensation. During the period from the date of the Business Combination through March 31, 2024 the Company did not record stock-based compensation expense associated with these Earnout Shares as the performance conditions associated with these Earnout Shares were not deemed probable of achievement. Unrecognized stock-based compensation expense for these Earnout Shares with a performance-based vesting condition that was not deemed probable of occurring as of March 31, 2024 was $16.6 million which is expected to vest subject to the performance-based vesting condition being satisfied or deemed probable. |
Net Loss Per Share | Net Loss Per Share Basic net loss per share is computed by dividing the net loss, which is allocated based upon the proportionate amount of weighted average shares outstanding, by each class of stockholder’s stock outstanding during the period. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including warrants and Earn Out Shares, to the extent dilutive. For the three months ended March 31, 2024, warrants, Subject Vesting Shares, True Up Shares and Earnout Shares were not included in the calculation of dilutive net loss per share as their effect will be anti-dilutive. For the three months ended March 31, 2023 warrants and options were not included in the calculation of dilutive net loss per share as their effect would have been anti-dilutive. The loss per share presented in the condensed consolidated statements of operations is based on the following for the three months ended March 31, 2024 and 2023:
|  | For the three months ended March 31,
|  | 2024 |  | 2023
|  | Class A Common Stock |  | Class B Common Stock |  | Class A Common Stock |  | Class B Common Stock
Basic and diluted net loss per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allocation of net loss, as adjusted |  | $ | (10,210,073 | ) |  | $ | (1,316,368 | ) |  | $ | (728,293 | ) |  | $ | (106,181 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted weighted average shares outstanding |  |  | 36,916,955 |  |  |  | 4,759,642 |  |  |  | 32,599,213 |  |  |  | 4,759,642 |
Basic and diluted net loss per ordinary share |  | $ | (0.28 | ) |  | $ | (0.28 | ) |  | $ | (0.02 | ) |  | $ | (0.02 | )
Recent Accounting Pronouncements | New Accounting Pronouncements Recently Adopted Accounting Standards In June 2016, the FASB issued ASU 2016-13, “Financial Instruments — Credit Losses” (Topic 326), which requires that an entity measure and recognize expected credit losses for financial assets held at amortized cost and replaces the incurred loss impairment methodology in current GAAP with a methodology that requires consideration of a broader range of information to estimate credit losses. The guidance also modifies the impairment model for available-for-sale debt securities. ASU 2016-13 is effective for the Company’s fiscal year beginning January 1, 2023. The Company has adopted ASU 2016-13 as of January 2023 with no material impacts on the financial statements as a result. Recently Issued Accounting Standards The Company is an emerging growth company, as defined in the JOBS Act. Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards issued subsequent to the enactment of the JOBS Act, until such time as those standards apply to private companies. The Company has elected to use this extended transition period for complying with new or revised accounting standards that have different effective dates for public and private companies until the earlier of the date that it (i) is no longer an emerging growth company or (ii) affirmatively and irrevocably opts out of the extended transition period provided in the JOBS Act. As a result, these financial statements may not be comparable to companies that comply with the new or revised accounting pronouncements as of public company effective dates. In June 2022, the FASB issued ASU 2022-03, “Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions,” which clarifies that contractual sale restrictions are not considered in measuring fair value of equity securities and requires additional disclosures for equity securities subject to contractual sale restrictions. The standard is effective for the Company for fiscal years beginning after December 15, 2024. The adoption of this standard is not expected to have a material impact on the Company’s condensed consolidated financial statements and related disclosures. In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” which requires disaggregated information about a reporting entity’s effective tax rate reconciliation as well as information on income taxes paid. The standard is intended to benefit investors by providing more detailed income tax disclosures that would be useful in making capital allocation decisions. The standard will be effective for the Company for fiscal years beginning after December 15, 2025. Early adoption is permitted. The Company is currently evaluating the impact of this accounting standard update on its condensed consolidated financial statements and disclosures. |
Power & Digital Infrastructure Acquisition II Corp. [Member] |  |
Accounting Policies, by Policy (Policies) [Line Items] |  |
Basis of Presentation and principles of Consolidation |  | Basis of Presentation The accompanying consolidated financial statement is presented in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and pursuant to the rules and regulations of the SEC.
Use of Estimates |  | Use of Estimates The preparation of financial statements in conformity with GAAP requires the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements. Actual results could differ from those estimates.
Concentration of Credit Risk |  | Concentration of Credit Risk Financial instruments that potentially subject the Company to concentration of credit risk consist of a cash account in a financial institution which, at times, may exceed the Federal Depository Insurance Corporation coverage of $250,000. The Company has not experienced losses on this account and management believes the Company is not exposed to significant risks on such account.
Income Taxes |  | Income Taxes The Company complies with the accounting and reporting requirements of FASB ASC Topic 740, “Income Taxes” (“ASC 740”), which requires an asset and liability approach to financial accounting and reporting for income taxes. Deferred income tax assets and liabilities are computed for differences between the financial statement and tax bases of assets and liabilities that will result in future taxable or deductible amounts, based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized. FASB ASC Topic 740 prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. For those benefits to be recognized, a tax position must be more likely than not to be sustained upon examination by taxing authorities. There were no unrecognized tax benefits as of December 31, 2023 and 2022. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as income tax expense. No amounts were accrued for the payment of interest and penalties as of December 31, 2023 and 2022. The Company is currently not aware of any issues under review that could result in significant payments, accruals or material deviation from its position. The Company is subject to income tax examinations by major taxing authorities since inception.
Fair Value of Financial Instruments |  | Fair Value of Financial Instruments The fair value of the Company’s assets and liabilities, which qualify as financial instruments under FASB ASC Topic 820, “Fair Value Measurements and Disclosures,” approximates the carrying amounts represented in the consolidated balance sheets, primarily due to their short-term nature.
Derivative Financial Instruments and Other Financial Instruments Carried at Fair Value |  | Derivative Financial Instruments The Company does not use derivative instruments to hedge exposures to cash flow, market, or foreign currency risks. The Company evaluates all of its financial instruments, including issued stock purchase warrants, to determine if such instruments are derivatives or contain features that qualify as embedded derivatives, pursuant to ASC 480 and ASC 815, “Derivatives and Hedging” (“ASC 815”). The classification of derivative instruments, including whether such instruments should be recorded as liabilities or as equity, is re-assessed at the end of each reporting period. The warrants issued in the Initial Public Offering (“Public Warrants”) and the Private Placement Warrants are not precluded from equity classification, based on the guidance in ASC 480 and ASC 815. Equity-classified contracts are initially measured at fair value (or allocated value). Subsequent changes in fair value are not recognized as long as the contracts continue to be classified in equity.
Net Loss Per Share |  | Net Income per Common Share The Company complies with accounting and disclosure requirements of FASB ASC Topic 260, “Earnings Per Share.” The Company has two classes of shares, which are referred to as Class A common stock and Class B common stock. Income and losses are shared pro rata between the two classes of shares. Net income per common share is calculated by dividing the net income by the weighted average shares of common stock outstanding for the respective period. The calculation of diluted net income does not consider the effect of the Public Warrants and the Private Placement Warrants to purchase an aggregate of 25,500,000 Class A common stock in the calculation of diluted income per share, because their exercise is contingent upon future events and their inclusion would be anti-dilutive under the treasury stock method. As a result, diluted net income per share is the same as basic net income per share for the year ended December 31, 2023 and 2022. Accretion associated with the redeemable Class A common stock is excluded from earnings per share as the redemption value approximates fair value.
|  | For The Year Ended December 31,
|  | 2023 |  | 2022
|  | Class A |  | Class B |  | Class A |  | Class B
Basic and diluted net income per common stock |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Allocation of net income |  | $ | 898,015 |  | $ | 344,978 |  | $ | 1,633,587 |  | $ | 408,397
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted weighted average common stock outstanding |  |  | 18,709,868 |  |  | 7,187,500 |  |  | 28,750,000 |  |  | 7,187,500
Basic and diluted net income per common stock |  | $ | 0.05 |  | $ | 0.05 |  | $ | 0.06 |  | $ | 0.06
Recent Accounting Pronouncements |  | Recent Accounting Pronouncements In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (ASU 2023-09), which requires disclosure of incremental income tax information within the rate reconciliation and expanded disclosures of income taxes paid, among other disclosure requirements. ASU 2023-09 is effective for fiscal years beginning after December 15, 2025. Early adoption is permitted. The Company’s management does not believe the adoption of ASU 2023-09 will have a material impact on its financial statements and disclosures. Management does not believe that any recently issued, but not yet effective, accounting standards, if currently adopted, would have a material effect on the Company’s consolidated financial statements.
Principles of Consolidation |  | Principles of Consolidation The accompanying consolidated financial statements include the accounts of the Company and its wholly owned subsidiary, XPDB Merger Sub, LLC. There has been no intercompany activity since inception.
Emerging Growth Company |  | Emerging Growth Company The Company is an “emerging growth company,” as defined in Section 2(a) of the Securities Act, as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”), and it may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies including, but not limited to, not being required to comply with the independent registered public accounting firm attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, reduced disclosure obligations regarding executive compensation in its periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved. Further, Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that an emerging growth company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such an election to opt out is irrevocable. The Company has elected not to opt out of such extended transition period, which means that when a standard is issued or revised and it has different application dates for public or private companies, the Company, as an emerging growth company, can adopt the new or revised standard at the time private companies adopt the new or revised standard. This may make comparison of the Company’s financial statements with another public company that is neither an emerging growth company nor an emerging growth company that has opted out of using the extended transition period difficult or impossible because of the potential differences in accounting standards used.
Cash and Concentration of Credit Risk |  | Cash and Cash Equivalents The Company considers all short-term investments with an original maturity of three months or less when purchased to be cash equivalents. The Company had no cash equivalents as of December 31, 2023 and 2022.
Investments Held in Trust Account |  | Investments Held in Trust Account The Company’s portfolio of investments is comprised of U.S. government securities, within the meaning set forth in Section 2(a)(16) of the Investment Company Act, with a maturity of 185 days or less, or investments in money market funds meeting certain conditions under Rule 2a-7 under the Investment Company Act which invest only in direct U.S. government treasury obligations and generally have a readily determinable fair value, or a combination thereof. When the Company’s investments held in the Trust Account are comprised of U.S. government securities, the investments are classified as trading securities. When the Company’s investments held in the Trust Account are comprised of money market funds, the investments are recognized at fair value. Trading securities and investments in money market funds are presented on the consolidated balance sheets at fair value at the end of each reporting period. The change in fair value of these securities is included in income from investments held in the Trust Account in the accompanying statement of operations. The estimated fair values of investments held in the Trust Account are determined using available market information. To mitigate the risk of being deemed to have been operating as an unregistered investment company (including under the subjective test of Section 3(a)(1)(A) of the Investment Company Act), on December 14, 2023, the Company instructed the trustee with respect to the Trust Account to liquidate the U.S. government securities or money market funds held in the Trust Account and thereafter to maintain all funds in the Trust Account in a segregated, interest-bearing demand deposit account at a national bank until the earlier of consummation of an initial business combination or liquidation.
Fair Value Measurements |  | Fair Value Measurements Fair value is defined as the price that would be received for sale of an asset or paid for transfer of a liability, in an orderly transaction between market participants at the measurement date. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). These tiers include: • Level 1, defined as observable inputs such as quoted prices (unadjusted) for identical instruments in active markets; • Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable such as quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active; and • Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions, such as valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable. In some circumstances, the inputs used to measure fair value might be categorized within different levels of the fair value hierarchy. In those instances, the fair value measurement is categorized in its entirety in the fair value hierarchy based on the lowest level input that is significant to the fair value measurement.
Offering Costs Associated with the Initial Public Offering |  | Offering Costs Associated with the Initial Public Offering Offering costs consisted of legal, accounting, underwriting fees and other costs incurred that were directly related to the Initial Public Offering. Upon completion of the Initial Public Offering, offering costs were allocated to the separable financial instruments issued in the Initial Public Offering on a relative fair value basis, compared to total proceeds received. Offering costs associated with the Class A common stock were charged to the carrying value of Class A common stock subject to possible redemption upon the completion of the Initial Public Offering. Offering costs associated with the Public Warrants and the Private Placement Warrants were recognized net in equity.
Class A Common Stock Subject to Possible Redemption |  | Class A Common Stock Subject to Possible Redemption The Company accounts for its Class A common stock subject to possible redemption in accordance with the guidance in ASC 480. Shares of Class A common stock subject to mandatory redemption (if any) are classified as liability instruments and are measured at fair value. Conditionally redeemable shares of Class A common stock (including shares of Class A common stock that feature redemption rights that are either within the control of the holder or subject to redemption upon the occurrence of uncertain events not solely within the Company’s control) are classified as temporary equity. At all other times, shares of Class A common stock are classified as stockholders’ equity. Shares of Class A common stock of the Company feature certain redemption rights that are considered to be outside of the Company’s control and subject to the occurrence of uncertain future events. Accordingly, as of December 31, 2023 and 2022, 10,608,178 and 28,750,000, respectively, shares of Class A common stock subject to possible redemption were presented as temporary equity, outside of the stockholders’ equity section of the Company’s consolidated balance sheets. In connection with the stockholders’ vote at the Special Meeting, the stockholders elected to redeem 18,141,822 shares of Class A common stock at a redemption price of approximately $10.37 per share, for an aggregate redemption amount of approximately $188,132,132. After the satisfaction of the Redemption, the balance in the Trust Account as of December 31, 2023 was approximately $114,641,527. Upon completion of the Redemption, 10,608,178 shares of Class A common stock and 7,187,500 shares of Class B common stock remain issued and outstanding. Under ASC 480, the Company has elected to recognize changes in the redemption value immediately as they occur and adjust the carrying value of the security to equal the redemption value at the end of the reporting period. This method would view the end of the reporting period as if it were also the redemption date of the security. Effective with the closing of the Initial Public Offering, the Company recognized the accretion from initial book value to redemption amount, which resulted in charges against additional paid-in capital (to the extent available) and accumulated deficit.

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