Biggest changeThe following table provides a reconciliation from GAAP S&M expenses to non-GAAP adjusted S&M expenses (amounts in thousands): Year Ended December 31, 2023 2022 S&M expenses (GAAP) $ 18,210 $ 12,582 Non-GAAP adjustments: Stock-based compensation expense 7,143 5,111 Reorganization expenses 84 — Adjusted S&M expenses (non-GAAP) $ 10,983 $ 7,471 55 Table of Contents The following table provides a reconciliation from GAAP R&D expenses to non-GAAP adjusted R&D expenses (amounts in thousands): Year Ended December 31, 2023 2022 R&D expenses (GAAP) $ 37,104 $ 42,605 Non-GAAP adjustments: Stock-based compensation expense 10,057 14,775 Reorganization expenses 182 — Adjusted R&D expenses (non-GAAP) $ 26,865 $ 27,830 The following table provides a reconciliation from GAAP G&A expenses to non-GAAP adjusted G&A expenses (amounts in thousands): Year Ended December 31, 2023 2022 G&A expenses (GAAP) $ 68,060 $ 56,622 Non-GAAP adjustments: Stock-based compensation expense 25,897 21,172 Reorganization expenses 318 — Adjusted G&A expenses (non-GAAP) $ 41,845 $ 35,450 The following table provides a reconciliation from GAAP net loss to non-GAAP adjusted EBITDA, with net loss being the most directly comparable GAAP measure (amounts in thousands): Year Ended December 31, 2023 2022 Net loss (GAAP) $ (98,443) $ (78,299) Non-GAAP adjustments: Interest income, net (8,117) (3,693) Income tax expense (349) 427 Depreciation and amortization 893 7,743 Stock-based compensation expense 43,097 41,058 Reorganization expenses 584 — Change in fair value of warrant liability — (2,330) Transaction costs — 20,586 Asset impairment — 2,828 Foreign exchange losses 222 316 Adjusted EBITDA (non-GAAP) $ (62,113) $ (11,364) We present adjusted EBITDA, which is net loss excluding adjustments that are outlined in the quantitative reconciliation provided above, as a supplemental measure of our performance and because we believe this measure is frequently used by securities analysts, investors, and other interested parties in the evaluation of companies in our industry.
Biggest change(GAAP) $ (135,750) $ (98,443) Non-GAAP adjustments: Interest income, net (5,413) (8,117) Provision for income taxes 67 (349) Depreciation and amortization 1,058 893 Stock-based compensation expense 38,709 43,097 Impairment of equity securities 11,730 — Provision for credit losses 29,980 150 Reorganization expenses 1,559 584 Gain on derecognition of contract liability (1,500) — Loss on impairment and sale of long-lived assets 336 — Change in fair value of derivative asset — conversion option 1,025 — Foreign exchange losses 300 222 Adjusted EBITDA (non-GAAP) $ (57,899) $ (61,963) We present adjusted EBITDA, which is net loss excluding adjustments that are outlined in the quantitative reconciliation provided above, as a supplemental measure of our performance and because we believe this measure is frequently used by securities analysts, investors, and other interested parties in the evaluation of companies in our industry.
Some of these limitations are: • it does not reflect our cash expenditures, future requirements for capital expenditures, or contractual commitments; • it does not reflect changes in, or cash requirements for, our working capital needs; • it does not reflect stock-based compensation, which is an ongoing expense; • although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and our adjusted EBITDA measure does not reflect any cash requirements for such replacements; • it is not adjusted for all non-cash income or expense items that are reflected in our consolidated statements of cash flows; • it does not reflect the impact of earnings or charges resulting from matters we consider not to be indicative of our ongoing operations; • it does not reflect limitations on or costs related to transferring earnings from our subsidiaries to us; and • other companies in our industry may calculate this measure differently than we do, limiting its usefulness as a comparative measure.
Some of these limitations are: • it does not reflect our cash expenditures, future requirements for capital expenditures, or contractual commitments; • it does not reflect changes in, or cash requirements for, our working capital needs; • it does not reflect stock-based compensation, which is an ongoing expense; 59 Table of Contents • although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and our adjusted EBITDA measure does not reflect any cash requirements for such replacements; • it is not adjusted for all non-cash income or expense items that are reflected in our consolidated statements of cash flows; • it does not reflect the impact of earnings or charges resulting from matters we consider not to be indicative of our ongoing operations; • it does not reflect limitations on or costs related to transferring earnings from our subsidiaries to us; and • other companies in our industry may calculate this measure differently than we do, limiting its usefulness as a comparative measure.
Emerging Growth Company Accounting Election We are an “emerging growth company” as defined in Section 2(a) of the Securities Act of 1933, as amended, and have irrevocably elected to take advantage of the benefits of this extended transition period for new or revised standard.
Emerging Growth Company Accounting Election We are an “emerging growth company” as defined in Section 2(a) of the Securities Act of 1933, as amended, and have irrevocably elected to take advantage of the benefits of this extended transition period for new or revised standards.
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion and analysis provide information which Energy Vault’s management believes is relevant to an assessment and understanding of Energy Vault’s consolidated results of operations and financial condition as of December 31, 2023 and for the fiscal year ended December 31, 2023.
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS The following discussion and analysis provide information which Energy Vault’s management believes is relevant to an assessment and understanding of Energy Vault’s consolidated results of operations and financial condition as of December 31, 2024 and for the fiscal year ended December 31, 2024.
Research and Development (“R&D”) Expenses R&D expenses consist primarily of internal and external expenses incurred in connection with our research activities and development programs that include materials costs directly related to product development, testing and evaluation costs, 49 Table of Contents construction costs including labor and transportation of material, overhead related costs and other direct expenses consisting of personnel-related expenses and consulting expenses relating to study of product safety, reliability and development.
Research and Development (“R&D”) Expenses R&D expenses consist primarily of internal and external expenses incurred in connection with our research activities and development programs that include materials costs directly related to product development, testing and evaluation costs, construction costs including labor and transportation of material, overhead related costs and other direct expenses consisting of personnel-related expenses and consulting expenses relating to study of product safety, reliability and development.
As the world transitions to an economy powered by increasingly intermittent renewable energy such as solar and wind, the ability to provide clean and affordable electricity to a growing global population will depend heavily on the ability to store and distribute energy at appropriate times.
As the global demand for electricity increases and the world transitions to an economy powered by increasingly intermittent renewable energy such as solar and wind, the ability to provide clean, reliable, and affordable electricity to a growing global population will depend heavily on the ability to store and distribute energy at appropriate times.
Recently Adopted and Issued Accounting Pronouncements Recently issued and adopted/unadopted accounting pronouncements are described in Note 2 of the consolidated financial statements included elsewhere in this Annual Report. 58 Table of Contents
Recently Adopted and Issued Accounting Pronouncements Recently issued and adopted/unadopted accounting pronouncements are described in Note 2 of the consolidated financial statements included elsewhere in this Annual Report.
Since the revenue recognition of these contracts depends on estimates, which are assessed continually during the term of the contract, recognized revenues and profits are subject to revisions as the contract progresses to completion.
Since revenue recognition for these performance obligations depends on estimates, which are assessed continually during the term of the contract, recognized revenues and profits are subject to revisions as the performance obligations progresses to completion.
When control of significant uninstalled materials is transferred to customers, the Company recognizes revenue in an amount equal to the cost of those materials. The profit margin inherent in these materials is deferred until the Company fulfills its obligation to install the materials during construction of the energy storage systems.
When control of significant uninstalled equipment is transferred to customers in a EPC project, the Company recognizes revenue in an amount equal to the cost of that equipment. The profit margin inherent in these materials is deferred until the Company fulfills its obligation to install the materials during construction of the energy storage systems.
Our cost of revenue is affected by underlying costs of materials such as batteries, inverters, enclosures, transformers, and cables, as well as the cost of subcontractors to provide construction services. We do not currently hedge against changes in the price of raw materials as we do not purchase raw materials. We purchase energy storage system components from our suppliers.
Our cost of revenue is affected by underlying costs of equipment and materials such as batteries, inverters, enclosures, transformers, and cables, as well as the cost of subcontractors to provide construction services. We do not currently hedge against changes in the price of raw materials as we do not purchase raw materials.
Our revenue growth is dependent on continued growth in the amount of energy storage systems constructed each year and our ability to increase our share of demand in the geographic regions where we currently compete and plan to compete in the future.
Our revenue growth is dependent on continued growth in the number of energy storage systems constructed each year and our ability to increase our share of demand in the geographic regions where we currently compete and plan to compete in the future. Additionally, our revenue growth is dependent on our ability to find attractive projects to build, own, and operate.
Gross Profit and Gross Profit Margin Gross profit and gross profit margin may vary from period to period due to the timing of transferring control of significant uninstalled materials to customers under contracts to sell energy storage systems.
We purchase energy storage system components from our suppliers. Gross Profit and Gross Profit Margin Gross profit and gross profit margin may vary from period to period due to the timing of transferring control of significant uninstalled equipment to customers under contracts to sell energy storage systems.
Adjusted EBITDA is not a measurement of our financial performance under GAAP and should not be considered as an alternative to net loss, operating loss, or any other performance measures derived in accordance with GAAP or as an alternative to cash flow from operating activities as a measure of our liquidity. 56 Table of Contents Our adjusted EBITDA measure has limitations as an analytical tool, and should not be considered in isolation or as a substitute for analysis of our results as reported under GAAP.
Adjusted EBITDA is not a measurement of our financial performance under GAAP and should not be considered as an alternative to net loss, operating loss, or any other performance measures derived in accordance with GAAP or as an alternative to cash flow from operating activities as a measure of our liquidity.
Any equity securities issued may also provide for rights, preferences or privileges senior to those of holders of our common stock. If we raise funds by issuing debt securities, these debt securities would have rights, preferences and privileges senior to those of holders of common stock. The terms of debt securities or borrowings could impose significant restrictions on our operations.
If the Company raises funds by issuing debt securities, these debt securities would have rights, preferences and privileges senior to those of holders of common stock. The terms of debt securities or borrowings could impose significant restrictions on our operations.
Stock-based compensation for RSUs that vest based solely on a service condition is measured based on the closing fair market value of the Company’s common stock on the date of the grant. Stock-based compensation for RSUs that vest based on market conditions is estimated on the date of the grant using a Monte Carlo simulation model.
Stock-Based Compensation Stock-based compensation for RSUs that vest based on market conditions is estimated on the date of the grant using a Monte Carlo simulation model.
To the extent that the price of our common stock exceeds $11.50 per share, it is more likely that our private warrant holders will exercise their warrants. To the extent that the price of our common stock declines, including a decline below $11.50 per share, it is less likely that our private warrant holders will exercise their warrants.
The exercise price for our private warrants is $11.50 per warrant, subject to certain specified adjustments. To the extent that the price of our common stock exceeds $11.50 per share, it is more likely that our private warrant holders will exercise their warrants.
The transaction costs in 2022 related to the consummation of the Merger. Liquidity and Capital Resources Sources of Liquidity Since inception , we have financed our net cash used in operating and investing activities primarily through the issuance and sale of equity, and with the proceeds from the Merger and the PIPE.
Liquidity and Capital Resources Sources of Liquidity Since inception , we have financed our net cash used in operating and investing activities primarily through the issuance and sale of equity, and with the proceeds from the reverse recapitalization and private investment in public equity that occurred in 2022.
The decrease was primarily attributable to a $2.7 million decrease in engineering and development costs, a $2.0 million decrease in personnel-related expenses, and a $0.8 million decrease in consulting costs. These cost decreases were primarily attributable to a focus on cost controls and a reduction in personnel.
The decrease was primarily attributable to a $5.0 million decrease in personnel-related expenses, a $3.9 million decrease in engineering and development costs, and a $2.5 million decrease in software expenses. These decreases in costs were primarily attributable to a decrease in headcount and a focus on cost control measures.
We may continue to incur operating losses in the future due to our on-going research and development activities. We may seek additional capital through equity and/or debt financings depending on market conditions. If we are required to raise additional funds by issuing equity securities, dilution to stockholders would result.
Energy Vault has incurred negative operating cash flows and operating losses in the past and we may incur operating losses in the future. Energy Vault may seek additional capital through combinations of equity and/or debt financings depending on market conditions. If we are required to raise additional funds by issuing equity securities, dilution to stockholders would result.
Cash Flows The following table summarizes cash flows from operating, investing, and financing activities for the periods indicated (amounts in thousands): Year Ended December 31, 2023 2022 Net cash used in operating activities $ (92,655) $ (23,346) Net cash used in investing activities (42,542) (13,319) Net cash (used in) provided by financing activities (5,482) 217,771 Effects of exchange rate changes on cash 52 (49) Net (decrease) increase in cash, cash equivalents, and restricted cash $ (140,627) $ 181,057 Operating Activities During the years ended December 31, 2023 and 2022, cash used in operating activities totaled $92.7 million and $23.3 million, respectively.
Cash Flows The following table summarizes cash flows from operating, investing, and financing activities for the periods indicated (amounts in thousands): Year Ended December 31, 2024 2023 Net cash used in operating activities $ (55,860) $ (92,655) Net cash used in investing activities (58,736) (42,542) Net cash used in financing activities (252) (5,482) Effects of exchange rate changes on cash (634) 52 Net decrease in cash, cash equivalents, and restricted cash $ (115,482) $ (140,627) Operating Activities For the years ended December 31, 2024 and 2023, cash used in operating activities totaled $55.9 million and $92.7 million, respectively.
Variable consideration is included in the transaction price only to the extent that it is improbable that a significant reversal in the amount of cumulative revenue recognized will occur when the uncertainty is resolved.
LDs are accounted for as variable consideration, and the contract price is reduced by the expected penalty or LD amount when recognizing revenue. Variable consideration is included in the transaction price only to the extent that it is improbable that a significant reversal in the amount of cumulative revenue recognized will occur when the uncertainty is resolved.
If inflation continues to increase in our markets, it may increase our expenses that we may not be able to pass through to customers. It may also increase the costs of our products that could negatively impact their competitiveness.
If inflation continues to increase in our markets, it may increase our expenses that we may not be able to pass through to customers.
For the year ended December 31, 2023, cash used in financing activities was primarily attributable to $6.0 million in tax payments related to the net settlement of equity awards, and $0.9 million in repayments for insurance premium financings. These cash outflows were partially offset by $1.3 million in proceeds from insurance premium financings.
Financing Activities During the years ended December 31, 2024 and 2023, cash used in financing activities totaled $0.3 million and $5.5 million, respectively. 57 Table of Contents For the year ended December 31, 2024, cash used in financing activities was primarily attributable to $2.4 million in repayments on insurance premium financings, $0.4 million in tax payments related to the net settlement of equity awards, and $0.2 million in finance lease payments, partially offset by $2.7 million in proceeds from insurance premium financings.
Our cost projections are heavily dependent upon raw materials (such as steel), equipment (such as motors, batteries, inverters, and power electronic devices) and technical and construction service providers (such as engineering, procurement, construction firms).
Under the EEQ model, we are responsible for the delivery of the equipment we provide, as well as resolving issues within our scope of supply. Our cost projections are heavily dependent upon raw materials (such as steel), equipment (such as motors, batteries, inverters, and power electronic devices), and technical and construction service providers (such as engineering, procurement, construction firms).
The following tables summarizes our cash, cash equivalents, and restricted cash balances as of December 31, 2023 and 2022 (amounts in thousands): December 31, 2023 2022 Cash and cash equivalents $ 109,923 $ 203,037 Restricted cash 35,632 83,145 Total cash, cash equivalents, and restricted cash $ 145,555 $ 286,182 Short-Term Liquidity M anagement believes that its cash and cash equivalents on hand as of the filing date of this Annual Report will be sufficient to fund our operating activities for at least the next twelve months without regard to any cash proceeds we may receive in the future upon the exercise of our private warrants.
Management believes that its cash, cash equivalents, and restricted cash on hand as of the filing date of this Annual Report will be sufficient to fund our operating activities for at least the next twelve months without regard to any cash proceeds we may receive in the future upon the exercise of our private warrants.
Our non-cancellable purchase obligations as of December 31, 2023 totaled approximately $4.7 million.
Our non-cancellable purchase obligations as of December 31, 2024 totaled $1.9 million.
Energy storage solutions are needed to balance the production intermittency of variable renewable energy to support a clean-energy future and a balanced electrical grid infrastructure.
Energy storage solutions are needed to balance the production intermittency of variable renewable energy to support a clean-energy future and a balanced electrical grid infrastructure. Both government mandates and companies focused on reducing energy use, cost, and emissions are expected to propel the shift to renewable sources of power.
Key Factors and Trends Affecting our Business We believe that our performance and future success depend upon several factors that present significant opportunities for us, but also pose risks and challenges including those discussed below and in Part I, Item 1A.
We are striving to create a world powered by renewable resources so that everyone will have access to clean, reliable, sustainable, and affordable energy. 46 Table of Contents Key Factors and Trends Affecting our Business We believe that our performance and future success depend upon several factors that present significant opportunities for us, but also pose risks and challenges including those discussed below and in Part I, Item 1A.
In the United States, governments continuously modify these statutes and regulations. Governments, often acting through state utility or public service commissions, change and adopt different rates for commercial customers on a regular basis. These changes could affect our ability to deliver cost savings to our current and future customers for the purchase of electricity.
These statutes and regulations often relate to electricity pricing, net metering, incentives, taxation, competition with utilities and the interconnection of customer-owned electricity generation. In the United States, governments continuously modify these statutes and regulations. Governments, often acting through state utility or public service commissions, change and adopt different rates for commercial customers on a regular basis.
You should compensate for these limitations by relying primarily on our GAAP results and using adjusted EBITDA only supplementally. Critical Accounting Policies and Use of Estimates Our consolidated financial statements are prepared in conformity with GAAP.
You should compensate for these limitations by relying primarily on our GAAP results and using adjusted EBITDA only supplementally. Critical Accounting Estimates Our consolidated financial statements are prepared in conformity with GAAP. In preparing our financial statements, we make assumptions, judgments, and estimates based on historical experience and various other factors that we believe to be reasonable under the circumstances.
In addition to these sources of revenue, in the future we expect to generate revenue from the sale of our GESSs, the sale or licensing of the Company’s software solutions, the sale of long-term service agreements to maintain customer owned energy storage systems, and through tolling arrangements in connection with energy storage systems that we intend to own and operate.
To date, the Company has primarily generated revenue from the sale of our BESSs and from licensing our EVx technology. In addition to these sources of revenue, in the future we expect to generate revenue from tolling arrangements in connection with energy storage systems that we intend to own and operate.
The credit market and financial services industry have in the past, and may in the future, experience periods of uncertainty that could impact the availability and cost of equity and debt financing. 53 Table of Contents Licensing Agreements with Extended Payment Terms The Company has licensed its gravity storage technology and certain of these agreements contain extended payment terms.
The credit market and financial services industry have in the past, and may in the future, experience periods of uncertainty that could impact the availability and cost of equity and debt financing.
The Company utilizes the percentage of completion method based on costs incurred as a percentage of total estimated contract costs to determine the amount of revenue to recognize. Contract costs include all direct materials and labor costs related to contract performance.
The Company utilizes the percentage of completion method when recognizing revenue over time and percentage of completion is based on costs incurred as a percentage of total estimated contract costs.
Additionally, gross profit and gross profit margin may vary from period to period due to our sales volume, product prices, product costs, product mix, geographical mix, along with the timing of when we perform installation and construction services.
Additionally, gross profit and gross profit margin may vary from period to period due to our sales volume, product prices, product costs, product mix, geographical mix, and change in estimates for warranty liabilities.
Under the EPC model, we generally rely on third-party EPC firms to construct our storage systems, under our supervision with dedicated teams tasked with project management. Under the EEQ model, we are responsible for the delivery and installation of the equipment we provide, as well as resolving issues within our scope of supply.
“Risk Factors.” Development and Deployment Plan for Third-Party Sales of Energy Storage Products We primarily rely on two models for project delivery, which are (i) EPC delivery and (ii) EEQ delivery. Under the EPC model, we generally rely on third-party EPC firms to construct our storage systems, under our supervision with dedicated teams tasked with project management.
Additionally, our revenue growth is dependent on our ability to continue to develop and commercialize new and innovative products to meet our customer’s energy storage needs. Cost of Revenue Cost of revenue primarily consists of product costs, including purchased materials and supplies, as well as costs related to subcontractors, direct labor, and product warranties.
Cost of Revenue Cost of revenue primarily consists of product costs, including purchased equipment, materials and supplies, as well as costs related to subcontractors, direct labor, and product warranties.
The growth of the energy storage market that we address is primarily driven by the decreasing cost of energy storage technologies and renewable power generation sources, government mandates, financial incentives to reduce GHG 46 Table of Contents emissions, and increasing geopolitical pressures driving energy independence goals.
The growth of the energy storage market that we address is primarily driven by the decreasing cost of energy storage technologies, government mandates, financial incentives to reduce GHG emissions, and efforts to enhance grid stability and efficiency. These dynamics are driving demand for increased energy storage capacity and duration.
Accordingly, these are the policies we believe are the most critical to aid in fully understanding and evaluating our consolidated financial condition and results of operations. For more information on our significant accounting policies, refer to Note 2 - Summary of Significant Accounting Policies of our audited consolidated financial statements included in this Annual Report on Form 10-K.
Actual results could differ materially from these estimates under different assumptions and conditions. For a summary of significant accounting policies, refer to Note 2 - Summary of Significant Accounting Policies of our audited consolidated financial statements included in this Annual Report on Form 10-K.
We incorporate a customer-centric, solutions-based approach toward helping utilities, independent power producers, and large industrial energy users reduce their energy costs while maintaining power reliability.
We believe that our experience in the build-and-transfer business, combined with our proprietary energy storage technologies and geographical footprint, uniquely positions us to build and operate storage projects with superior efficiency and reliability. We incorporate a customer-centric, solutions-based approach toward helping utilities, independent power producers (“IPP”), and large industrial energy users reduce their energy costs while maintaining power reliability.
When the Company sells a BESS, the Company recognizes revenue over time as we transfer control of our product to the customer. When the Company licenses its intellectual property, revenue is recognized at the point in time at which the customer obtains control of the licensed technology.
Under an EEQ model, the Company recognizes revenue related to equipment sales upon delivery to the customer and service revenue over time as we provide specialized technical services to the customer. When the Company licenses its IP, revenue is recognized at the point in time at which the customer obtains control of the licensed technology.
Gross Profit and Gross Profit Margin Gross profit was $17.5 million and gross profit margin was 5.1% for the year ended December 31, 2023. Gross profit for 2023 was primarily attributable to the sale and transfer of the Company’s BESS projects. Gross profit was $59.3 million and gross profit margin was 40.6% for the year ended December 31, 2022.
Cost of revenue decreased due to the reduction in active BESS projects. Gross Profit and Gross Profit Margin Gross profit was $6.2 million and gross profit margin was 13.4% for the year ended December 31, 2024, compared to gross profit of $17.5 million and gross profit margin of 5.1% for the year ended December 31, 2023.
We expect to invest in additional property, equipment, and other assets as we construct and own energy storage systems, which will result in additional depreciation expense in the future. Asset Impairment Energy Vault began building a prototype of the EV1 in March 2020, resulting in the EV1 CDU, which was connected to the Swiss national grid in July 2020.
We expect to invest in additional property, equipment, and other assets as we construct and own energy storage systems, which will result in additional depreciation expense in the future. Loss on Impairment and Sale of Long-Lived Assets Asset impairment and loss on sale of assets consists of losses associated with the write-down or sale of property and equipment.
Cash used in investing activities for the year ended December 31, 2023 consisted of $30.4 million for the purchase of property and equipment, primarily related to the energy storage systems being constructed in Snyder, Texas and Calistoga, California, $6.1 million for the purchase of property and equipment that the Company expects to resell, and $6.0 million for the purchase of equity securities in KORE.
Cash used in investing activities for the year ended December 31, 2024 primarily consisted of $58.9 million for the purchase of property and equipment, primarily related to the construction of a hybrid energy storage system in Calistoga, California, Cross Trails BESS, and the Snyder CDU.
Investing Activities During the years ended December 31, 2023 and 2022, cash used in investing activities totaled $42.5 million and $13.3 million, respectively.
Net cash used in operating activities declined during 2024 compared to 2023 primarily due to the timing of customer collections and vendor payments. Investing Activities For the years ended December 31, 2024 and 2023, cash used in investing activities totaled $58.7 million and $42.5 million, respectively.
Partially offsetting these cash inflows was $20.7 million transaction cost payments related to the reverse recapitalization and $5.5 million in tax payments related to the net settlement of equity awards. Non-GAAP Financial Measures To complement our consolidated statements of operations, we use non-GAAP financial measures of adjusted S&M expenses, adjusted R&D expenses, adjusted G&A expenses, and adjusted EBITDA.
Non-GAAP Financial Measures To complement our consolidated statements of operations and comprehensive loss, we use non-GAAP financial measures of adjusted S&M expenses, adjusted R&D expenses, adjusted G&A expenses, adjusted operating expenses, and adjusted EBITDA.
Stock-based compensation expense was $7.1 million for the year ended December 31, 2023, compared to $5.1 million for the year ended December 31, 2022. R&D Expenses R&D expenses decreased by $5.5 million to $37.1 million for the year ended December 31, 2023, compared to $42.6 million for the year ended December 31, 2022.
The decrease in personnel-related expenses was primarily due to a reduction in headcount. Research and Development Expenses R&D expenses decreased by $11.1 million to $26.0 million for the year ended December 31, 2024, compared to $37.1 million for the year ended December 31, 2023.
Depreciation and Amortization Expense Depreciation and amortization expense decreased by $6.9 million to $0.9 million for the year ended December 31, 2023, compared to $7.7 million for the year ended December 31, 2022. The decrease was primarily due to the EV1 CDU being decommissioned in 2022, resulting in the asset being fully depreciated during 2022.
Depreciation and Amortization Expense Depreciation and amortization expense increased by $0.2 million to $1.1 million for the year ended December 31, 2024, compared to $0.9 million for the year ended December 31, 2023. The increase is primarily attributable to capitalized software that was placed into service during 2024.
The presentation of these non-GAAP measures is not meant to be considered in isolation or as an alternative to net loss as an indicator of our performance.
The presentation of these non-GAAP measures is not meant to be considered in isolation or as an alternative to other measures of financial performance calculated in accordance with GAAP. These non-GAAP measures and their reconciliation to GAAP financial measures are shown below. Beginning September 30, 2024, provision for credit losses has been treated as a non-GAAP adjustment.
The increase was primarily attributable to a $9.8 million increase in personnel-related expenses, a $1.4 million increase in software and IT costs, a $1.1 million increase in insurance costs, and a $0.6 million increase in consulting costs. The increase in personnel costs was due to expanded headcount and an increase in stock-based compensation expense.
General and Administrative Expenses G&A expenses decreased by $4.9 million to $63.0 million for the year ended December 31, 2024, compared to $67.9 million for the year ended December 31, 2023. The decrease was primarily attributable to a $4.6 million decrease in personnel-related expenses, a $1.2 million decrease in software expenses, and a $0.7 million decrease in consulting costs.
The non-cash charges primarily consisted of $41.1 million in stock-based compensation expense, $7.7 million in depreciation and amortization expense, and $2.8 million in asset impairment charges, partially offset by a $2.3 million gain from a change in the fair value of the Company’s warrant liability.
Significant non-cash items include $38.7 million in stock-based compensation expense, $11.7 million in impairment of equity securities, $30.0 million in bad debt expense, $1.4 million in non-cash interest income, $1.1 million in depreciation and amortization expense, and a $1.0 million loss due to the change in fair value of a derivative asset.
In these situations, the contract prices are aggregated and then allocated to each energy storage project based upon their relative stand-alone selling price. The Company recognizes revenue over time on these projects as a result of the continuous transfer of control of its products to the customer.
Revenue The Company recognizes revenue over time for EPC contracts and technical services in EEQ contracts as a result of the continuous transfer of control of the products and services to the customer.
Renewable energy sources present environmental advantages over fossil fuels in terms of finite natural resource usage and GHG emission profile. A major obstacle to transitioning to renewable sources of energy such as wind and solar is the intermittent availability of these types of energy sources.
Over the past decade, deployment of renewable energy resources has accelerated and there has been an industry-wide push for decarbonization, which is increasing the demand for grid-scale energy storage. A major obstacle to transitioning to renewable sources of energy such as wind and solar is the intermittent availability of these types of energy sources.
Our Business Energy Vault develops and deploys utility-scale energy storage solutions designed to aid in the global transition to a clean energy future. Our Company’s comprehensive offerings include proprietary gravity, battery, and green hydrogen energy storage solutions, supported by our technology-agnostic energy management software solutions.
Our Business Energy Vault provides a diverse technology portfolio of turnkey energy storage platforms, including proprietary gravity, battery, and green hydrogen energy storage hardware technologies, supported by our technology-agnostic energy management system software and integration platform.
G&A Expenses G&A expenses increased by $11.4 million to $68.1 million for the year ended December 31, 2023, compared to $56.6 million for the year ended December 31, 2022.
Other Income (Expense), Net Other income (expense), net improved by $0.7 million to other income, net of $0.6 million for the year ended December 31, 2024 compared to other expense, net of $0.2 million for the year ended December 31, 2023.
Revenue The Company generates revenue from the sale and licensing of our energy storage solutions. To date, the Company has primarily generated revenue from the sale of our BESSs and from licensing our EVx technology.
Key Components of Results of Operations Revenue The Company generates revenue from the sale of our energy storage products, the licensing of the Company’s software solutions and IP, and from long-term service agreements to operate and maintain customer owned energy systems.
Transaction Costs Transaction costs consist of legal, accounting, banking fees, and other costs directly related to the consummation of the Merger and the PIPE. 50 Table of Contents Results of Operations Consolidated Comparison of Year Ended December 31, 2023 to Year Ended December 31, 2022 The following table sets forth our results of operations for the periods indicated (amounts in thousands): Year Ended December 31, 2023 2022 $ Change Revenue $ 341,543 $ 145,877 $ 195,666 Cost of revenue 324,012 86,580 237,432 Gross profit 17,531 59,297 (41,766) Operating expenses: Sales and marketing 18,210 12,582 5,628 Research and development 37,104 42,605 (5,501) General and administrative 68,060 56,622 11,438 Depreciation and amortization 893 7,743 (6,850) Asset impairment — 2,828 (2,828) Loss from operations (106,736) (63,083) (43,653) Other income (expense): Interest expense (35) (2) (33) Interest income 8,152 3,695 4,457 Change in fair value of warrant liability — 2,330 (2,330) Transaction costs — (20,586) 20,586 Other expense, net (173) (226) 53 Loss before income taxes $ (98,792) $ (77,872) $ (20,920) Revenue The Company recognized revenue for the product and service categories as follows for the years ended December 31, 2023 and 2022 (amounts in thousands): Year Ended December 31, 2023 2022 Build and transfer energy storage products $ 339,891 $ 85,636 Licensing of intellectual property 735 58,483 Other 917 1,758 Total revenue $ 341,543 $ 145,877 Revenue for the year ended December 31, 2023 increased by $195.7 million to $341.5 million comp ared to $145.9 million for the year ended December 31, 2022.
(“KORE”). 52 Table of Contents Results of Operations Consolidated Comparison of Year Ended December 31, 2024 to Year Ended December 31, 2023 The following table sets forth our results of operations for the periods indicated (amounts in thousands): Year Ended December 31, 2024 2023 $ Change Revenue $ 46,199 $ 341,543 $ (295,344) Cost of revenue 40,012 324,012 (284,000) Gross profit 6,187 17,531 (11,344) Operating expenses: Sales and marketing 15,839 18,210 (2,371) Research and development 25,999 37,104 (11,105) General and administrative 62,971 67,910 (4,939) Provision for credit losses 29,980 150 29,830 Depreciation and amortization 1,058 893 165 Loss on impairment and sale of long-lived assets 336 — 336 Total operating expenses 136,183 124,267 11,916 Loss from operations (129,996) (106,736) (23,260) Other income (expense): Interest expense (123) (35) (88) Interest income 5,537 8,152 (2,615) Impairment of equity securities (11,730) — (11,730) Other income (expense), net 566 (173) 739 Loss before income taxes $ (135,746) $ (98,792) $ (36,954) Revenue The Company recognized revenue for the product and service categories as follows for the years ended December 31, 2024 and 2023 (amounts in thousands): Year Ended December 31, 2024 2023 Sale of energy storage products (1) $ 44,592 $ 340,292 Operation and maintenance services 1,090 — Software licensing 402 — IP licensing 115 735 Other — 516 Total revenue $ 46,199 $ 341,543 __________________ (1) For the year ended December 31, 2023, $0.4 million in revenue from the sale of spare energy system parts has been reclassified from “other” to “sale of energy storage products.” Revenue for the year ended December 31, 2024 decreased by $295.3 million to $46.2 million compared to $341.5 million for the year ended December 31, 2023.
Anticipated cash inflows from licensing agreements with extended payment terms as of December 31, 2023 were as follows (amounts in thousands): Year ended December 31, Amount 2024 $ 6,600 2025 9,250 2026 6,750 2027 7,250 2028 7,250 Thereafter 60,000 Total $ 97,100 Contractual Obligations Our principal commitments as of December 31, 2023 consisted primarily of obligations under operating leases, finance leases, warranty obligations, deferred pensions, a nd issued purchase orders.
Cash, Cash Equivalents, and Restricted Cash The following tables summarizes our cash, cash equivalents, and restricted cash balances as of December 31, 2024 and 2023 (amounts in thousands): December 31, 2024 2023 Cash and cash equivalents $ 27,091 $ 109,923 Restricted cash 2,982 35,632 Total cash, cash equivalents, and restricted cash $ 30,073 $ 145,555 Contractual Obligations Our principal commitments as of December 31, 2024 consisted primarily of obligations under operating leases, finance leases, warranty liabilities, a deferred pension, a nd issued purchase orders.
The increase in cost of revenue for the year ended December 31, 2023 compared to the 51 Table of Contents year ended December 31, 2022 was primarily due to the increase in revenue from the sale and transfer of energy storage products.
Revenue from two customers accounted for 75% and 19%, respectively, of the Company’s total revenue for the year ended December 31, 2024. 53 Table of Contents Cost of Revenue Cost of revenue for the year ended December 31, 2024 decreased by $284.0 million to $40.0 million compared to $324.0 million for the year ended December 31, 2023.