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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Cash flows from operating activities: |  |  |
Net (loss) income | $ (6,178) | $ 1,557 |
Adjustments to reconcile net (loss) income to net cash flows from operating activities: |  |  |
Depreciation of energy assets, net | 17,124 | 13,341 |
Depreciation of property and equipment | 1,175 | 644 |
Increase in contingent consideration | 0 | 121 |
Accretion of ARO liabilities | 66 | 66 |
Amortization of debt discount and debt issuance costs | 982 | 790 |
Amortization of intangible assets | 539 | 302 |
Provision for bad debts | 1 | 93 |
Loss on write-off of long-lived assets | 0 | 18 |
Non-cash project revenue related to in-kind leases | (775) | 0 |
Earnings from unconsolidated entities | (555) | (450) |
Net (gain) loss from derivatives | (2,359) | 163 |
Stock-based compensation expense | 3,026 | 4,037 |
Deferred income taxes, net | 687 | (7,142) |
Unrealized foreign exchange loss (gain) | 806 | (29) |
Changes in operating assets and liabilities: |  |  |
Accounts receivable | 5,899 | 58,954 |
Accounts receivable retainage | 1,580 | 2,439 |
Federal ESPC receivable | (26,395) | (33,736) |
Inventory, net | 561 | 608 |
Costs and estimated earnings in excess of billings | (7,842) | 85,748 |
Prepaid expenses and other current assets | 104 | 929 |
Income taxes receivable, net | 180 | 6,380 |
Project development costs | (1,728) | (1,812) |
Other assets | (1,413) | (1,903) |
Accounts payable, accrued expenses and other current liabilities | 23,849 | (82,266) |
Billings in excess of cost and estimated earnings | 9,160 | 9,398 |
Other liabilities | 2,323 | 522 |
Cash flows from operating activities | 20,817 | 58,772 |
Cash flows from investing activities: |  |  |
Purchases of property and equipment | (962) | (1,657) |
Capital investment in energy assets | (105,633) | (89,787) |
Capital investment in major maintenance of energy assets | (5,355) | (589) |
Net proceeds from equity method investment | 12,956 | 0 |
Contributions to equity method investments | (4,776) | 0 |
Acquisitions, net of cash received | 0 | (9,182) |
Loans to joint venture investments | 0 | (38) |
Cash flows from investing activities | (103,770) | (101,253) |
Cash flows from financing activities: |  |  |
Payments of debt discount and debt issuance costs | (590) | (366) |
Proceeds from exercises of options and ESPP | 183 | 571 |
Proceeds from senior secured revolving credit facility, net | 20,100 | 0 |
Proceeds from long-term debt financings | 89,321 | 58,188 |
Proceeds from Federal ESPC projects | 19,581 | 42,309 |
Net proceeds from energy asset receivable financing arrangements | 4,748 | 4,438 |
Contributions from non-controlling interests | 28,864 | 16,308 |
Distributions to non-controlling interest | (63) | 0 |
Distributions to redeemable non-controlling interests, net | (133) | (161) |
Payment on seller's promissory note | (29,441) | 0 |
Payments on long-term debt and financing leases | (55,196) | (15,159) |
Cash flows from financing activities | 77,374 | 106,128 |
Effect of exchange rate changes on cash | (126) | 42 |
Net (decrease) increase in cash, cash equivalents, and restricted cash | (5,705) | 63,689 |
Cash, cash equivalents, and restricted cash, beginning of period | 153,676 | 149,888 | $ 149,888
Cash, cash equivalents, and restricted cash, end of period | 147,971 | 213,577 | $ 153,676
Supplemental disclosures of cash flow information: |  |  |
Cash paid for interest | 26,911 | 13,135 |
Cash paid for income taxes | 59 | 323 |
Non-cash Federal ESPC settlement | 49,926 | 0 |
Accrued purchases of energy assets | 88,447 | 97,542 |
Non-cash contributions from non-controlling interest | 0 | 109 |
Non-cash financing for energy asset project acquisition | $ 32,500 | $ 0 |

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