2. Summary of Significant Accounting Policies

Cash Equivalents  The Company considers only those investments that are highly liquid and readily convertible to cash with original maturities of three months or less at date of purchase as cash equivalents.

Fair Value of Financial Instruments  The carrying value of certain financial instruments, including cash equivalents, accounts receivable, accounts payable, revolving credit facility and notes payable approximate fair market value based on their short-term nature. See Note 10—Fair Value Measurements, for disclosure regarding the fair value of other financial instruments.

Accounts Receivable  Trade accounts receivable are recorded at the invoiced amount and are typically non-interest bearing. The Company maintains allowances for estimated losses resulting from the inability of customers to make required payments and other accounts receivable allowances. We evaluate all accounts aged over 60 days past payment terms. If the financial condition of our customers deteriorates or if other conditions arise that result in an impairment of their ability or intention to make payments, additional allowances may be required. Accounts receivable that is expected to be received past 12 months are recorded as non-current accounts receivable. The Company has determined any financing component of non-current receivables to be immaterial. Changes in the accounts receivable allowances are as follows (in thousands):

Inventories  The Company values inventories at the lower of cost (determined on a first in first out (“FIFO”) basis) or net realizable value. The composition of inventory is routinely evaluated to identify slow-moving, excess, obsolete or otherwise impaired inventories. Inventories identified as impaired are evaluated to determine if write-downs are required. Included in the assessment is a review for obsolescence as a result of engineering changes in the Company’s products. All inventories expected to be used in more than one year are classified as long-term.

Depreciation and Amortization  Depreciation and amortization are provided for using the straight-line method over the estimated useful lives of the related assets, ranging from two to ten years. Leasehold improvements are amortized over the lease term or the estimated useful lives of the assets, whichever is shorter. Intangible assets that have finite useful lives are amortized over their estimated useful lives using the straight-line method.

Long-Lived Assets  The Company reviews the recoverability of long-lived assets, including intangible assets with finite lives, whenever events or changes in circumstances indicate that the carrying value of such assets may not be recoverable. If the expected future cash flows from the use of such assets (undiscounted and without interest charges) are less than the carrying value, the Company may be required to record a write-down, which is determined based on the difference between the carrying value of the assets and their estimated fair value. The Company performed an analysis as of March 31, 2023 and determined that no impairment was necessary. See Note 5—Intangible Assets.

Deferred Revenue  Deferred revenue consists of deferred product and service revenue and customer deposits. Deferred revenue will be recognized when earned in accordance with the Company’s revenue recognition policy. The Company has the right to retain all or part of customer deposits under certain conditions.

Revenue The Company derives its revenues primarily from the sale of microturbine products, accessories, parts, equipment rentals and services.

The Company determines revenue recognition through the following steps:

Microturbine Products The Company recognizes revenue when the performance obligation identified under the terms of the contract with its customer is satisfied, which generally occurs, for microturbine products, upon the transfer of control in accordance with the contractual terms and conditions of the sale. The majority of the Company’s revenue associated with a microturbine product is recognized at a point in time when the microturbine product is shipped to the customer. On occasion, the Company enters into bill-and-hold arrangements. Each bill-and-hold arrangement is reviewed and revenue is recognized only when certain criteria have been met: (i) the reason for the bill-and-hold arrangement is substantive; (ii) the product is segregated from the Company’s other inventory items held for sale; (iii) the product is ready for shipment to the customer; and (iv) the Company does not have the ability to use the product or direct it to another customer.

Accessories The Company recognizes revenue when performance obligations identified under the terms of contracts with its customers are satisfied, which generally occurs, for accessories, upon the transfer of control in accordance with the contractual terms and conditions of the sale.

Parts and Services Revenue from extended warranties and post-shipment performance obligations is recognized when or as those obligations are satisfied. The Company primarily offers assurance-type standard warranties that do not represent separate performance obligations and will separately offer and price extended warranties that are separate performance obligations for which the associated revenue is recognized over-time based on the extended warranty period. The Company records amounts billed to customers for reimbursement of shipping and handling costs within revenue. Shipping and handling costs associated with outbound freight after control over a system has transferred to a customer are accounted for as fulfillment costs and are included in cost of goods sold. Sales taxes and other usage-based taxes are excluded from revenue. The Company extends payment terms past one year only on a limited basis, and thus any financing component is not considered material.

Factory Protection Plan In addition to the provision of standard warranties, the Company offers comprehensive Factory Protection Plans (“FPP”) to minimize product downtime and guarantee maintenance costs to ensure the microturbine system will operate when needed and perform as intended at the lowest cost of ownership. Revenue related to the Company’s performance obligation to provide replacement parts as needed is recognized over the 30-day, noncancellable FPP contract period with automatic renewals for 5, 10, 15, or 20 years under ASC 606. The related costs are accrued at the time a customer submits an order for a replacement part to reflect the Company’s obligation. The accrual reflects the Company’s best estimate of the probable liability under the replacement part obligation. The provision is periodically adjusted to reflect actual experience. FPP contracts typically go into effect once the standard warranty expires. The current carrying amount of the liability is $10.8 million.

Some FPPs offer a labor reimbursement on the labor performed on a microturbine system. Due to the nature of the arrangement, labor reimbursements are accounted for under ASC 460. See below for additional information on the labor reimbursement within the FPP offering.

Comprehensive factory protection plan service contracts require payment at the beginning of the contract period. Advance payments are not considered a significant financing component as they are typically received less than one year before the related performance obligations are satisfied. These payments are treated as a contract liability and are classified in deferred revenue in the Consolidated Balance Sheets. Once control transfers to the customer and the Company meets the revenue recognition criteria, the deferred revenue is recognized in the Consolidated Statement of Operations. The deferred revenue relating to the annual maintenance service contracts is recognized in the Consolidated Statement of Operations on a straight-line basis over the expected term of the contract.

Significant Judgments - Contracts with Multiple Performance Obligations

The Company enters into contracts with its customers that often include promises to transfer multiple products, parts, accessories, FPP and services. A performance obligation is a promise in a contract with a customer to transfer

products or services that are distinct. Determining whether products and services are distinct performance obligations that should be accounted for separately or combined as one unit of accounting may require significant judgment.

Products, parts and accessories are distinct as such services are often sold separately. In determining whether FPP and other service contracts are distinct, the Company considers the following factors for each FPP and services agreement: availability of the services from other vendors, the nature of the services, the timing of when the services contract was signed in comparison to the product delivery date and the contractual dependence of the product on the customer’s satisfaction with the professional services work. To date, the Company has concluded that all of the FPP and services contracts included in contracts with multiple performance obligations are distinct.

The Company allocates the transaction price to each performance obligation on a relative stand-alone selling price (“SSP”) basis. The SSP is the price at which the Company would sell a promised product or service separately to a customer. Judgment is required to determine the SSP for each distinct performance obligation.

The Company determines SSP by considering its overall pricing objectives and market conditions. Significant pricing practices taken into consideration include the Company’s discounting practices, the size and volume of the Company’s transactions, the customer demographic, the geographic area where systems and services are sold, price lists, its go-to-market strategy, historical sales and contract prices. The determination of SSP is made through consultation with and approval by the Company’s management, taking into consideration the go-to-market strategy. As the Company’s go-to-market strategies evolve, the Company may modify its pricing practices in the future, which could result in changes to SSP.

In certain cases, the Company is able to establish SSP based on observable prices of products or services sold separately in comparable circumstances to similar customers. The Company uses a single amount to estimate SSP when it has observable prices.

If SSP is not directly observable, for example when pricing is highly variable, the Company uses a range of SSP. The Company determines the SSP range using information that may include market conditions or other observable inputs. The Company typically has more than one SSP for individual products and services due to the stratification of those products and services by customer size and geography.

Practical Expedients

We apply a practical expedient to expense costs as incurred for costs to obtain a contract when the amortization period would have been one year or less. These costs are recorded within sales and marketing expenses.

Warranty  The Company provides for the estimated costs of warranties at the time revenue is recognized. The specific terms and conditions of those warranties vary depending upon the product sold and geography of sale. The Company’s product warranties generally start from the delivery date and continue for up to twenty-four months. Factors that affect the Company’s warranty obligation include product failure rates, anticipated hours of product operations and costs of repair or replacement in correcting product failures. These factors are estimates that may change based on new information that becomes available each period. Similarly, the Company also accrues the estimated costs to address reliability repairs on products no longer in warranty when, in the Company’s judgment, and in accordance with a specific plan developed by the Company, it is prudent to provide such repairs. The Company assesses the adequacy of recorded warranty liabilities quarterly and adjusts the liability as necessary. When the Company has sufficient evidence that product changes are altering the historical failure occurrence rates, the impact of such changes is then taken into account in estimating future warranty liabilities.

Factory Protection Plan Service Cost Reimbursement

Each FPP is a 30-day contract period with automatic renewals for 5, 10, 15, or 20 years. As previously noted, some FPPs offer a labor reimbursement on the labor performed on a product. An Authorized Service Provider (ASP) must perform the labor. ASPs submit claims for labor reimbursements and are credited for the cost of labor if the repairs meet the Company’s prescribed standards. The Company is unable to develop a reasonable estimate of the maximum potential payout under these arrangements because the FPPs do not contain a limit on the number of labor reimbursements that may be submitted. However, given historical practice, the Company has priced the FPP to cover all costs incurred related to the labor reimbursement and is not exposed to significant losses over the FPP premium.

The labor reimbursement is separate and distinct from the parts offering; therefore the Company allocates a portion of the transaction price to the labor reimbursement based on SSP. The Company applies judgment in determining the SSP as the labor reimbursement is not sold separately. The Company will recognize a liability at the inception of the executed FPP agreement for the premium received in advance for the Labor offering. Income will be recognized on a net, straight-line basis with labor reimbursement costs recognized when incurred.  

Research and Development (“R&D”)  The Company accounts for grant distributions and development funding as offsets to R&D expenses and both are recorded as the related costs are incurred in the Company’s statement of operations. There were no offsets to R&D during Fiscal 2023 and 2022.

Income Taxes  Deferred income tax assets and liabilities are computed for differences between the consolidated financial statement and income tax basis of assets and liabilities. Such deferred income tax asset and liability computations are based on enacted tax laws and rates applicable to periods in which the differences are expected to reverse. Valuation allowances are established, when necessary, to reduce deferred income tax assets to the amounts expected to be realized.

ASC Topic 740-10, Income Taxes, clarifies the accounting for uncertainty in income taxes recognized in our financial statements in accordance with accounting principles generally accepted in the United States of America, or GAAP. Income tax positions must meet a more-likely-than-not recognition threshold to be recognized. Income tax positions that previously failed to meet the more-likely-than-not threshold are recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not threshold are derecognized in the first subsequent financial reporting period in which that threshold is no longer met. Our policy is to recognize interest and penalties accrued on any unrecognized tax benefits as interest and other expense, net in the statements of operations.

Contingencies  The Company records an estimated loss from a loss contingency when information available prior to issuance of its financial statements indicates that it is probable that an asset has been impaired or a liability has been incurred at the date of the financial statements and the amount of the loss can be reasonably estimated.

Risk Concentrations  Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. At March 31, 2023, the majority of our cash balances were held at financial institutions located in California. The accounts at these institutions are insured by the Federal Deposit Insurance Corporation up to certain limits. Balances that exceed the insurance coverage aggregate to approximately $12.1 million as of March 31, 2023. The Company places its cash and cash equivalents with high credit quality institutions. The Company performs ongoing credit evaluations of its customers and maintains an allowance for potential credit losses.

Sales to E-Finity Distributed Generation, LLC (“E-Finity”) and RSP Systems accounted for 12% and 11%, respectively, of the Company’s revenue for Fiscal 2023. Sales to E-Finity accounted for 18% of the Company’s revenue for Fiscal 2022. Additionally, E-Finity accounted for 12% of net accounts receivable as of March 31, 2023, and E-Finity and Radian Oil & Gas Services Co. accounted for 28% and 14% of net accounts receivable as of March 31, 2022, respectively.

Certain components of the Company’s products are available from a limited number of suppliers. An interruption in supply could cause a delay in manufacturing, which would affect operating results adversely.

Estimates and Assumptions  The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make certain estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Significant estimates include accounting for accounts receivable allowances, stock-based compensation, inventory write-downs, valuation of long-lived assets including intangible assets with finite lives, product warranties, income taxes and other contingencies. Actual results could differ from those estimates.

Net Loss Per Common Share  Basic loss per common share is computed using the weighted-average number of common shares outstanding for the period. Diluted loss per share is also computed without consideration to potentially dilutive instruments because the Company incurred losses which would make such instruments antidilutive. Outstanding stock options and restricted stock units at March 31, 2023 and 2022 were 0.8 million and 0.6 million, respectively. As of March 31, 2023 and 2022, the number of warrants excluded from diluted net loss per common share computations was approximately 3.8 million and 0.8 million, respectively.

Stock-Based Compensation  Options or stock awards are recorded at their estimated fair value at the measurement date. The Company recognizes compensation cost for options and stock awards that have a graded vesting schedule on a straight-line basis over the requisite service period for the entire award.

Leases Arrangements meeting the definition of a lease are classified as operating or financing leases and are recorded on the consolidated balance sheet as both a right of use asset and lease liability, calculated by discounting fixed lease payments over the lease term at the rate implicit in the lease or the Company’s incremental borrowing rate. Lease liabilities are increased by interest and reduced by payments each period, and the right of use asset is amortized over the lease term or life of the asset based on the classification of the lease. For operating leases, interest on the lease liability and the amortization of the right of use asset result in straight-line rent expense over the lease term.

In calculating the right of use asset and lease liability, the Company elects to combine lease and non-lease components. The Company excludes short-term leases having initial terms of twelve months or less from the new guidance as an accounting policy election and recognizes rent expense on a straight-line basis over the lease term.

Going Concern  In connection with preparing the consolidated financial statements for the fiscal year ended March 31, 2023, management evaluated whether there were conditions and events, considered in the aggregate, that raised substantial doubt about the Company’s ability to meet its obligations as they became due for the next twelve months from the date of issuance of our Fiscal 2023 consolidated financial statements. The Company incurred a net loss of $24.5 million and used cash from operating activities of $7.9 million during Fiscal 2023. As of March 31, 2023, the Company had cash and cash equivalents of $12.8 million, and outstanding debt of $51.0 million at fair value.

We reduced our outstanding debt via proceedings in U.S. Chapter 11 Bankruptcy Court. On September 28, 2023, the Company filed for a prepackaged financial restructuring with its Senior Lender, Goldman Sachs under the U.S. Chapter 11 Bankruptcy laws, as further discussed in Note 17–Subsequent Events in the Notes to Consolidated Financial Statements. The Company emerged from Bankruptcy on December 7, 2023, and affected the financial and organizational restructuring.

Given our current cash position, lack of liquidity, limits to accessing capital and debt funding options, the economic and market risk of the forecast, there is substantial doubt regarding the Company’s ability to continue as a going concern and our ability to meet our financial obligations as they become due over the next twelve months from the date of issuance of our Fiscal 2023 financial statements.

Segment Reporting  The Company is considered to be a single reporting segment. The business activities of this reporting segment are the development, manufacture and sale of turbine generator sets and their related parts and service. Following is the geographic revenue information based on the primary operating location of the Company’s customers (in thousands):

The following table summarizes the Company’s revenue by product (in thousands):

​

Substantially all of the Company’s operating assets are in the United States.

Impact of Recently Issued Accounting Standards

Adopted

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The amendments in this ASU provide guidance for estimating credit losses on certain types of financial instruments, including trade receivables, by introducing an approach based on expected losses. The expected loss approach will require entities to incorporate considerations of historical information, current information and reasonable forecasts. With certain exceptions, the transition to the new guidance will be through a cumulative effect adjustment to opening accumulated deficit as of the beginning of the first reporting period in which the guidance is adopted. In November 2019, the FASB issued ASU 2019-10, Financial Instruments - Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842) (“ASU 2019-10”), which defers the adoption of ASU

2016-13 for Smaller Reporting Companies (“SRCs”) as defined by the SEC for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years.

On April 1, 2023, the Company adopted Financial Instruments—Credit Losses (Topic 326). The standard will require entities to record a cumulative-effect adjustment to the balance sheet as of the beginning of the first reporting period in which the guidance is effective. The adoption did not have a material impact on its financial statements.

Management considers the applicability and impact of all Accounting Standards Updates (“ASUs”). The ASUs not listed were assessed and determined by management to be either not applicable or are expected to have minimal impact on our consolidated financial position and/or results of operations.