Sunrun Inc.

Note 1. Organization

Sunrun Inc. (“Sunrun” or the “Company”) was formed in 2007. The Company is engaged in the design, development, installation, sale, ownership and maintenance of home battery storage and energy systems (“Projects”) in the United States.

Sunrun acquires customers directly and through relationships with various solar and strategic partners (“Partners”). The Projects are constructed either by Sunrun or by Sunrun’s Partners and are mostly owned by the Company. Sunrun’s customers enter into an agreement to utilize the home battery storage and/or energy system (the “Customer Agreement”) which typically have an initial term of 20 or 25 years. Sunrun monitors, maintains and insures the Projects during the term of the Customer Agreement. Certain of these energy systems under Customer Agreements are sold to third-party investors. The Company also owns and operates home-to-grid power plants, home electrification products, and solar leads generated by customers.

The Company has formed various subsidiaries (“Funds”) to finance the development of Projects. These Funds, structured as limited liability companies, obtain financing from outside investors and purchase Projects from Sunrun under master purchase agreements. The Company currently utilizes a partnership-flip legal structure for its Funds.

Note 2. Summary of Significant Accounting Policies

Basis of Presentation and Principles of Consolidation

The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting, and in the opinion of management, include all adjustments of a normal recurring nature necessary for the fair presentation of the Company’s interim financial statements. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. As such, these unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s annual report on Form 10-K for the year ended December 31, 2025. The results of the nine months ended September 30, 2026 are not necessarily indicative of the results to be expected for the fiscal year ending December 31, 2026 or other future periods.

The consolidated financial statements reflect the accounts and operations of the Company and those of its subsidiaries, including Funds, in which the Company has a controlling financial interest. The typical condition for a controlling financial interest ownership is holding a majority of the voting interests of an entity. However, a controlling financial interest may also exist in entities, such as VIEs, through arrangements that do not involve holding a majority of the voting interests. In accordance with the provisions of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification Topic 810 (“ASC 810”)Consolidation, the Company consolidates any VIE of which it is the primary beneficiary. The primary beneficiary, as defined in ASC 810, is the party that has (1) the power to direct the activities of a VIE that most significantly impact the VIE’s economic performance and (2) the obligation to absorb the losses of the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. The Company evaluates its relationships with its VIEs on an ongoing basis to determine whether it continues to be the primary beneficiary. The consolidated financial statements reflect the assets and liabilities of VIEs that are consolidated. All intercompany transactions and balances have been eliminated in consolidation.

Effective December 31, 2025, the Company revised the terminology used for certain financial statement line items to better align with its operations. The Company has renamed financial statement line items “Solar energy systems, net” on the consolidated balance sheets as “Energy systems, net”, “Solar energy systems and product sales” and “Cost of solar energy systems and product sales” on the consolidated statements of operations as “Energy systems and product sales” and “Cost of energy systems and product sales,” respectively, and “Payments for the costs of solar energy systems” as “Payments for the costs of energy systems” on the consolidated statements of cash flows. The change in terminology does not impact the amounts reported in the financial statements. Comparative periods have been renamed to reflect this change for consistency.

Use of Estimates

The preparation of the consolidated financial statements requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The Company regularly makes estimates and assumptions, including, but not limited to, revenue recognition constraints that result in variable consideration, the discount rate used to adjust the promised amount of consideration for the effects of a significant financing component, the estimates that affect the collectability of accounts receivable, the valuation of inventories, the useful lives of energy systems, the useful lives of property and equipment, the discount rate used for operating and financing leases, the valuation of stock-based compensation, the determination of valuation allowances associated with deferred tax assets, the fair value of debt instruments disclosed and the redemption value of redeemable noncontrolling interests. The Company bases its estimates on historical experience and various other assumptions believed to be reasonable. Actual results may differ from such estimates.

Segment Information

The Company hasone operating segment withone business activity, providing solar energy services and products to customers. The Company's chief operating decision maker (“CODM”) is its Chief Executive Officer, who reviews financial information presented on a consolidated basis. When evaluating performance and allocating resources, the CODM uses consolidated income (loss) from operations and net income (loss). These financial metrics are used by the CODM to make key operating decisions, such as the determination of volume targets and the allocation of budget between cost of revenues, sales and marketing, research and development, and general and administrative expenses. The CODM does not use asset or liability information in evaluating the Company’s operating segment.

Revenue from external customers (including, but not limited to homeowners) for each group of similar products and services is as follows (in thousands):

Revenue from Customer Agreements includes payments by customers for the use of the system as well as utility and other rebates assigned by the customer to the Company in the Customer Agreement. Revenue from incentives includes revenue from the sale of solar renewable energy credits (“SRECs”). Energy systems sales are revenue from the sale of energy systems directly to customers or third-party investors. Product sales revenue consists of revenue from the sale of solar panels, inverters, racking systems, roof repair, and other solar energy products sold to resellers, as well as the sale of customer leads to third parties, including the Company’s partners and other solar providers. Revenue from energy system sales to one customer represented approximately $14.1 million of the Company’s consolidated revenues for the three months ended September 30, 2026 and $132.0 million for the nine months ended September 30, 2026.

Cash and Restricted Cash

Restricted cash represents amounts related to obligations under certain financing transactions and future replacement of energy system components.

The following table provides a reconciliation of cash and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows. Cash and restricted cash consists of the following (in thousands):

Accounts Receivable

Accounts receivable consist of amounts due from customers, as well as state and utility rebates due from government agencies and utility companies. Under Customer Agreements, the customers typically assign incentive rebates to the Company.

Accounts receivable, net consists of the following (in thousands):

Asset Retirement Obligation

The Company has an asset retirement obligation (“ARO”) arising from contractual or regulatory requirements to perform certain asset retirement activities at the time the Company's energy systems are retired. The Company recognizes a corresponding ARO when an obligating event takes place, which typically is when the energy system is installed. An asset is considered retired when it is permanently taken out of service, such as through a sale or disposal. The Company's aggregate ARO is immaterial and is recorded as a component of energy systems, net and other liabilities on the Company’s consolidated balance sheets. The Company's ARO balances are subject to change in future periods given the inherent uncertainty in estimating asset retirement costs and timing.

Supplier Finance Agreements

The Company has entered into supplier finance agreements with certain financial institutions, whereby these institutions pay amounts related to trade and inventory payables to suppliers on behalf of the Company. The terms of these agreements allow the Company to extend, at its sole discretion, the original supplier payment terms up to 90 or 120 days. The Company does not provide any form of guarantee under these financing agreements. There were no amounts outstanding under these agreements as of either September 30, 2026 or December 31, 2025. The Company records interest for the period the supplier finance obligation is outstanding and reflects the proceeds and payments related to these transactions as a financing activity within its consolidated statement of cash flow.

Deferred Revenue

When the Company receives consideration, or when such consideration is unconditionally due, from a customer prior to delivering goods or services to the customer under the terms of a Customer Agreement, the Company records deferred revenue. Such deferred revenue consists of amounts for which the criteria for revenue recognition have not yet been met and includes amounts that are collected or assigned from customers, including upfront deposits and prepayments, and rebates. Deferred revenue relating to financing components represents the cumulative excess of interest expense recorded on financing component elements over the related revenue recognized to date and will eventually net to zero by the end of the initial term. Amounts received related to the sales of SRECs which have not yet been delivered to the counterparty are recorded as deferred revenue.

The opening balance of deferred revenue was $1.3 billion as of December 31, 2024. Deferred revenue consists of the following (in thousands):

During the three months ended September 30, 2026 and 2025, the Company recognized revenue of $45.5 million and $43.5 million, respectively, and during the nine months ended September 30, 2026 and 2025, the Company recognized revenue of $122.3 million and $115.1 million, respectively, from amounts included in deferred revenue at the beginning of the respective periods. Revenue allocated to remaining performance obligations represents contracted revenue that has not yet been recognized and includes deferred revenue as well as amounts that will be invoiced and recognized as revenue in future periods. Contracted but not yet recognized revenue was approximately $38.9 billion as of September 30, 2026, of which the Company expects to recognize approximately 5% over the next 12 months. The annual recognition is not expected to vary significantly over the next 10 years as the vast majority of existing Customer Agreements have at least 10 years remaining, given that the average age of the Company’s fleet of residential energy systems under Customer Agreements is less thansix years due to the Company being formed in 2007 and having experienced significant growth in the last few years. The annual recognition on these existing contracts will gradually decline over the midpoint of the Customer Agreements over the following 10 years as the typical 20- or 25-year initial term expires on individual Customer Agreements.

Fair Value of Financial Instruments

The Company defines fair value as the exchange price that would be received for an asset or an exit price that would be paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company uses valuation approaches to measure fair value that maximize the use of observable inputs and minimize the use of unobservable inputs. The FASB establishes a three-tier fair value hierarchy for disclosure of fair value measurements as follows:

•Level 1—Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date;

•Level 2—Inputs are observable, unadjusted quoted prices in active markets for similar assets or liabilities, unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities; and

•Level 3—Inputs that are unobservable, significant to the measurement of the fair value of the assets or liabilities and are supported by little or no market data.

The Company’s financial instruments include cash, receivables, accounts payable, accrued expenses, distributions payable to noncontrolling interests, derivatives, and recourse and non-recourse debt.

Certain assets are measured at fair value on a non-recurring basis. These assets are not measured at fair value on an ongoing basis, but are subject to fair value adjustments only in certain circumstances. Assets that are written down to fair value when impaired are not subsequently adjusted to fair value unless further impairment occurs.

Revenue Recognition

The Company recognizes revenue when control of goods or services is transferred to its customers, in an amount that reflects the consideration it expects to be entitled to in exchange for those goods or services.

Customer agreements and incentives

Customer agreements and incentives revenue is primarily comprised of revenue from Customer Agreements in which the Company provides continuous access to a functioning energy system and revenue from the sales of SRECs generated by the Company’s energy systems to third parties.

The Company begins to recognize revenue on Customer Agreements when permission to operate (“PTO”) is given by the local utility company or on the date daily operation commences if utility approval is not required. Revenue recognition does not necessarily follow the receipt of cash. For Customer Agreements that include a fixed fee per month which entitles the customer to any and all electricity generated by the system, and for which the Company’s obligation is to provide continuous access to a functioning energy system, the Company recognizes revenue evenly over the time that it satisfies its performance obligations, which is over the initial term of the Customer Agreements. Customer Agreements typically have an initial term of 20 or 25 years. After the initial contract term, Customer Agreements typically automatically renew annually or for afive year term.

SREC revenue arises from the sale of environmental credits generated by energy systems and is generally recognized upon delivery of the SRECs to the counterparty or upon reporting of the electricity generation.

In determining the transaction price, the Company adjusts the promised amount of consideration for the effects of the time value of money when the timing of payments provides it with a significant benefit of financing the transfer of goods or services to the customer. In those circumstances, the contract contains a significant financing component. When adjusting the promised amount of consideration for a significant financing component, the Company uses the discount rate that would be reflected in a separate financing transaction between the entity and its customer at contract inception and recognizes the revenue amount on a straight-line basis over the term of the Customer Agreement, and interest expense using the effective interest rate method.

Consideration from customers is considered variable due to the performance guarantee under Customer Agreements and liquidating damage provisions under SREC contracts in the event minimum deliveries are not achieved. Performance guarantees provide a credit to the customer if the system’s cumulative production, as measured on various PTO anniversary dates, is below the Company’s guarantee of a specified minimum. Revenue is recognized to the extent it is probable that a significant reversal of such revenue will not occur.

The Company capitalizes incremental costs incurred to obtain a contract in Other Assets in the consolidated balance sheets. These amounts are amortized on a straight-line basis over the term of the Customer Agreements, and are included in Sales and marketing in the consolidated statements of operations.

Energy systems and product sales

For energy systems sold to customers, revenue is recognized when the energy system passes inspection by the authority having jurisdiction, which inspection generally occurs after installation but prior to PTO, at which time the Company has met the performance obligation in the contract. For energy system sales that include delivery obligations up until interconnection to the local power grid with PTO, the Company recognizes revenue at PTO. For sale of energy systems subject to newly originated Customer Agreements to third-party investors or non-controlled joint venture customers, the Company recognizes revenue over time as performance obligations are satisfied, based on the achievement of milestones. Revenue is adjusted for variable consideration related to potential returns, price adjustments, and other customer concessions. These adjustments are calculated using the expected value method. Certain energy systems sold to customers include fees for extended warranty and maintenance services. These fees are recognized over the life of the service agreement. The Company’s installation Projects are typically completed in less than twelve months.

Product sales consist of batteries and other energy products sold to resellers, roofing repair, and customer leads. Product sales revenue is recognized at the time when control is transferred, upon shipment, or as services are delivered. Customer lead revenue, included in product sales, is recognized at the time the lead is delivered.

Taxes assessed by government authorities that are directly imposed on revenue producing transactions are excluded from energy systems and product sales.

Cost of Revenue

Customer agreements and incentives

Cost of revenue for customer agreements and incentives is primarily comprised of (1) the depreciation of the cost of the energy systems, as reduced by amortization of deferred grants, (2) energy system operations, monitoring and maintenance costs including associated personnel costs, and (3) allocated corporate overhead costs.

Energy systems and product sales

Cost of revenue for energy systems and non-lead generation product sales consist of direct and indirect material and labor costs for energy systems installations and product sales. Also included are engineering and design costs, estimated warranty costs, freight costs, allocated corporate overhead costs, vehicle depreciation costs and personnel costs associated with supply chain, logistics, operations management, safety and quality control. Cost of revenue for lead generations consists of costs related to direct-response advertising activities associated with generating customer leads.

Recently Issued and Adopted Accounting Standards

Accounting standards adopted effective January 1, 2026:

In November 2024, the FASB issued ASU 2024-04, Debt — Debt with Conversion and Other Options (Subtopic 470-20) — Induced Conversions of Convertible Debt Instruments. This guidance clarifies the requirements for determining whether to account for certain early settlements of convertible debt instruments as induced conversions or extinguishment. This ASU is effective for fiscal years beginning after December 15, 2025, with early adoption permitted for entities that have already adopted ASU 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity's Own Equity (Subtopic 815- 40), Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity. The Company adopted ASU 2024-04 effective January 1, 2026 and there was no impact to its consolidated financial statements.

In July 2025, the FASB issued ASU 2025-05, Financial Instruments — Credit Losses (Topic 326) — Measurement of Credit Losses for Accounts Receivable and Contract Assets. This guidance provides a practical expedient permitting an entity to assume that conditions at the balance sheet date remain unchanged over the life of the asset when estimating expected credit losses for current accounts receivable and current contract assets. This ASU is effective for fiscal years beginning after December 15, 2025 and interim periods within those fiscal years, with early adoption permitted. The Company adopted ASU 2025-05 effective January 1, 2026 and there was no impact to its consolidated financial statements.

Accounting standards to be adopted:

In October 2023, the FASB issued ASU 2023-06, Disclosure Improvements — Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative, to modify the disclosure or presentation requirements of a variety of topics, which will allow users to more easily compare entities subject to the SEC’s existing disclosures with those entities that were not previously subject to the SEC’s requirements, and to align the requirements in the FASB accounting standard codification with the SEC’s regulations. The amendments in this ASU are effective when the related disclosure is effectively removed from Regulations S-X or S-K, with early adoption prohibited. The Company is currently evaluating the provisions of the amendments and the impact on its future consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures: Disaggregation of Income Statement Expenses. This guidance requires disclosures about significant expense categories, including but not limited to, inventory purchases, employee compensation, depreciation, amortization, and selling expenses. This ASU is effective for fiscal years beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its financial statement disclosures.

In September 2025, the FASB issued ASU 2025-06, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40) — Targeted Improvements to the Accounting for Internal-Use Software. The amendments in this update improve the operability of the guidance by removing all references to software development project stages and clarifies the threshold entities apply to begin capitalizing cost. This ASU is effective for fiscal years beginning after December 15, 2027 and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its future consolidated financial statements.

In November 2025, the FASB issued ASU 2025-09, Derivatives and Hedging (Topic 815): Hedge Accounting Improvements. This ASU amends certain aspects of hedge accounting guidance to more closely align hedge accounting with the economics of an entity’s risk management activities in the financial statements. Specifically, this guidance allows entities to apply hedge accounting to a greater number of highly effective economic hedges in five areas: (i) similar risk assessment for cash flow hedges; (ii) hedging forecasted interest payments on choose-your-rate debt instruments; (iii) cash flow hedges of nonfinancial forecasted transactions; (iv) net written options as hedging instruments; and (v) foreign-currency-denominated debt instrument as hedging instrument and hedged item (dual hedge). This ASU is effective for fiscal years beginning after December 15, 2026, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its future consolidated financial statements.

In December 2025, the FASB issued ASU 2025-11, Interim Reporting (Topic 270): Narrow-Scope Improvements. This guidance creates a comprehensive list of interim disclosures required under GAAP and codifies a disclosure principle that requires disclosures at interim periods when an event or change that has a material effect on an entity has occurred since the last annual report. This ASU is effective for fiscal years beginning after December 15, 2027 and interim periods within those fiscal years. The Company is currently evaluating this guidance and the impact it may have on its financial statement disclosures.

In December 2025, the FASB issued ASU 2025-12, Codification Improvements. The FASB issued final guidance to clarify, correct errors in or make other improvements to a variety of topics in the Codification that are intended to make it easier to understand and apply. This ASU is effective for fiscal years beginning after December 15, 2026 and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its future consolidated financial statements.

In May 2026, the FASB issued ASU 2026-02, Environmental Credits and Environmental Credit Obligations (Topic 818). This ASU was issued to improve the accounting and disclosure of environmental credits and environmental credit obligations. The guidance applies to all entities that buy, receive or internally generate environmental credits they intend to sell, trade or distribute. The guidance specifies when an entity is required to recognize an environmental credit as an asset or an expense and, if the environmental credit is recognized as an asset, how the entity measures it. This ASU is effective for fiscal years beginning after December 15, 2027, and interim periods within those fiscal years, with early adoption permitted. The Company is currently evaluating this guidance and the impact it may have on its future consolidated financial statements.

Note 3. Fair Value Measurement

At September 30, 2026 and December 31, 2025, the carrying value of receivables, accounts payable, accrued expenses and distributions payable to noncontrolling interests approximates fair value due to their short-term nature and falls under the Level 2 hierarchy. The carrying values and fair values of debt instruments are as follows (in thousands):

At September 30, 2026 and December 31, 2025, the fair value of certain recourse debt and certain senior, subordinated and securitization loans approximate their carrying values because their interest rates are variable rates that approximate rates currently available to the Company. At September 30, 2026 and December 31, 2025, the fair value of the Company’s other debt instruments are based on rates currently offered for debt with similar maturities and terms. The Company’s fair value of the debt instruments fell under the Level 2 hierarchy. These valuation approaches involve some level of management estimation and judgment, the degree of which is dependent on the price transparency for the instruments or market.

At September 30, 2026 and December 31, 2025, financial instruments measured at fair value on a recurring basis, based upon the fair value hierarchy, are as follows (in thousands):

The above balances are recorded in other assets and other liabilities, respectively, in the consolidated balance sheets, except for $35.1 million and $9.8 million as of September 30, 2026 and December 31, 2025, respectively, which is recorded in prepaid expenses and other current assets andnil and $6.3 million as of September 30, 2026 and December 31, 2025, respectively, which is recorded in accrued expenses and other liabilities.

The Company determines the fair value of its interest rate swaps using a discounted cash flow model that incorporates an assessment of the risk of non-performance by the interest rate swap counterparty and an evaluation of the Company’s credit risk in valuing derivative instruments. The valuation model uses various inputs including contractual terms, interest rate curves, credit spreads, and measures of volatility.

Note 4. Inventories

Inventories consist of the following (in thousands):

Note 5. Energy Systems, net

Energy systems, net consists of the following (in thousands):

All energy systems, including construction-in-progress, have been leased to or are subject to signed Customer Agreements with customers. The Company recorded depreciation expense related to energy systems of $187.6 million and $173.4 million for the three months ended September 30, 2026 and 2025, respectively, and $553.3 million and $500.6 million for the nine months ended September 30, 2026 and 2025, respectively. The depreciation expense was reduced by the amortization of deferred grants of $2.4 million and $2.4 million for the three months ended September 30, 2026 and 2025, respectively, and $6.9 million and $7.3 million for the nine months ended September 30, 2026 and 2025, respectively.

Note 6. Other Assets

Other assets consist of the following (in thousands):

The Company recorded amortization of costs to obtain contracts of $27.8 million and $25.8 million for the three months ended September 30, 2026 and 2025, respectively, and $80.3 million and $71.2 million for the nine months ended September 30, 2026 and 2025, respectively, in Sales and marketing in the consolidated statements of operations.

The majority of unbilled receivables arise from fixed price escalators included in the Company’s long-term Customer Agreements. The escalator is included in calculating the total estimated transaction value for an individual Customer Agreement. The total estimated transaction value is then recognized over the term of the Customer Agreement. The amount of unbilled receivables increases while billings for an individual Customer Agreement are less than the revenue recognized for that Customer Agreement. Conversely, the amount of unbilled receivables decreases once the billings become higher than the amount of revenue recognized in the period. At the end of the initial term of a Customer Agreement, the cumulative amounts recognized as revenue and billed to date are the same, therefore the unbilled receivable balance for an individual Customer Agreement will be zero. The Company applies an estimated loss-rate in order to determine the current expected credit loss for unbilled receivables. The estimated loss-rate is determined by analyzing historical credit losses, residential first and second mortgage foreclosures and consumers’ utility default rates, as well as current economic conditions. The Company reviews individual customer collection status of electricity billings to determine whether the unbilled receivables for an individual customer should be written off, including the possibility of a service transfer to a potential new homeowner.

Note 7. Accrued Expenses and Other Liabilities

Accrued expenses and other liabilities consist of the following (in thousands):

Note 8. Indebtedness

As of September 30, 2026, debt consisted of the following (in thousands, except percentages):

(1)Represents the additional amount the Company could borrow, if any, based on the state of its existing assets as of September 30, 2026.

(2)Reflects weighted average contractual, unhedged rates. See Note 9, Derivatives for hedge rates.

(3)Ranges shown reflect a fixed interest rate and rates using SOFR, as applicable.

(4)The working capital facility (the “Facility”) was amended in December 2025 and its total commitment of up to $321.4 million is secured by substantially all of the unencumbered assets of the Company, as well as ownership interests in certain subsidiaries of the Company. As of September 30, 2026 the Company had drawn $135.1 million from the facility and utilized $82.4 million of letters of credit. Borrowings under the Facility may be designated as Base Rate Loans or Term SOFR Loans, subject to certain terms and conditions under the Credit Agreement. Base Rate Loans accrue interest at a rate per year equal to 2.25% to 2.75% depending on total outstanding balance as a percentage of total commitment plus the highest of (a) the federal funds rate plus 0.50%, (b) the interest rate determined from time to time by the Administrative Agent as its prime rate and notified to the Company, (c) the Adjusted Term SOFR Rate (defined below) for a one-month interest period in effect on such day (or if such day is not a business day, the immediately preceding business day) plus 1.00% and (d)0.00%. Term SOFR Loans accrue interest at a rate per annum equal to (a)3.25% to 3.75% depending on total outstanding balance as a percentage of total commitment plus (b) the greater of (i)0.00% and (ii) the sum of (x) the forward-looking term rate for a period comparable to the applicable available tenor based on SOFR that is published by CME Group Benchmark Administration Ltd or a successor for the applicable interest period and (y) (1) if the applicable interest period is one month,0.11448%, (2) if the applicable interest period is three months,0.26161% or (c) if the applicable interest period is six months,0.42826% (the rate pursuant to clause (b), the “Adjusted Term SOFR Rate”). As part of the December 2025 amendment, the maturity date of this facility was extended to March 1, 2028. The Company is in compliance with its quarter-end liquidity covenant. This facility is subject to various restrictive covenants, such as the completion and presentation of audited consolidated financial statements, maintaining a minimum modified interest coverage ratio, a minimum modified current ratio, a maximum modified leverage ratio, and a minimum unencumbered cash balance, in each case, tested quarterly. The Company was in compliance with all debt covenants as of September 30, 2026.

(5)Convertible senior notes due 2026 (the “2026 Notes”) matured on February 1, 2026 and the remaining balance was repaid in full. The 2026 Notes could have been repurchased by the Company, redeemed by the Company or converted pursuant to their terms. The debt discount recorded on the 2026 Notes is being amortized to interest expense at an effective interest rate of 0.57%. As of February 1, 2026, $7.7 million of the debt discount was amortized to interest expense inception to date. In connection with the offering of the 2026 Notes, the Company entered into privately negotiated capped call transactions (the “2026 Capped Calls”) with certain of the initial purchasers and/or their respective affiliates at a cost of approximately $28.0 million. The 2026 Capped Calls were classified as equity and were recorded to additional paid-in-capital within stockholders’ equity as of March 31, 2021. The 2026 Capped Calls each had an initial strike price of approximately $117.91 per share, subject to certain adjustments, which corresponded to the initial conversion price of the 2026 Notes. The 2026 Capped Calls had initial cap prices of $157.22 per share. The 2026 Capped Calls covered, subject to anti-dilution adjustments, approximately 3.4 million shares of common stock. The final components of the 2026 Capped Calls expired on January 29, 2026. None of the conversion criteria was met by January 29, 2026. The 2026 Notes were fully repaid at face value on the maturity date of February 1, 2026.

(6)Convertible senior notes due 2030 (the “2030 Notes” and, together with the 2026 Notes, the “Notes”) under this category with an outstanding balance of $483.2 million as of September 30, 2026 will bear regular interest at 4.00% per annum, and the principal amount of the 2030 Notes will not accrete. The 2030 Notes may bear special interest under specified circumstances relating to the Company’s failure to comply with its reporting obligations under the indenture or if the 2030 Notes are not freely tradeable as required by the indenture. The 2030 Notes will mature on March 1, 2030, unless repurchased by the Company, redeemed by the Company or converted pursuant to their terms prior to maturity. The initial conversion rate of the 2030 Notes is 61.3704 shares of the Company’s common stock, par value $0.0001 per share, per $1,000 principal amount of 2030 Notes, which is equivalent to an initial conversion price of approximately $16.29 per share. The conversion rate will be subject to adjustment upon the occurrence of certain specified events but will not be adjusted for any accrued and unpaid special interest. In addition, upon the occurrence of a make-whole fundamental change or an issuance of a notice of redemption, the Company will, in certain circumstances, increase the conversion rate by a number of additional shares for a holder that elects to convert its 2030 Notes in connection with such make-whole fundamental change or notice of redemption. The debt discount recorded on the 2030 Notes is being amortized to interest expense at an effective interest rate of 4.51%. As of September 30, 2026, $5.2 million of the debt discount was amortized to interest expense inception to date. In connection with the offering of the 2030 Notes, the Company entered into privately negotiated capped call transactions (the “2030 Capped Calls”) with certain of the initial purchasers and/or their respective affiliates at a cost of approximately $38.4 million. The 2030 Capped Calls are classified as equity and were recorded to additional paid-in-capital within stockholders’ equity as of March 31, 2024. The 2030 Capped Calls each have an initial strike price of approximately $16.29 per share, subject to certain adjustments, which corresponds to the initial conversion price of the 2030 Notes. The 2030 Capped Calls have initial cap prices of $22.37 per share. The 2030 Capped Calls cover, subject to anti-dilution adjustments, approximately 29.7 million shares of common stock. The 2030 Capped Calls are expected generally to reduce the potential dilution to the common stock upon any conversion of 2030 Notes and/or offset any cash payments the Company is required to make in excess of the principal amount of the 2030 Notes, as the case may be, in the event the market price per share of Common Stock, as measured under the 2030 Capped Calls, is greater than the strike price of the 2030 Capped Call, with such offset subject to a cap. If, however, the market price per share of the common stock, as measured under the 2030 Capped Calls, exceeds the cap price of the 2030 Capped Calls, there would be dilution and/or there would not be an offset of such potential cash payments, in each case, to the extent that the then-market price per share of the common stock exceeds the cap price. The final components of the 2030 Capped Calls are scheduled to expire on February 27, 2030. None of the conversion criteria has been met as of September 30, 2026.

(7)Certain loans under this category are part of project equity transactions.

(8)Pursuant to the terms of the aggregation facilities within this category the Company may draw up to an aggregate principal amount of $3.0 billion in revolver borrowings depending on the available borrowing base at the time.

(9)Loans under this category with a fixed rate had a total outstanding balance of $2.2 billion as of September 30, 2026.

(10)A loan under this category with an outstanding balance of $170.5 million as of September 30, 2026 contains a put option that can be exercised beginning in 2036 that would require the Company to pay off the entire loan on November 30, 2037.

(11)Loans under this category with a floating rate had a total outstanding balance of $357.2 million as of September 30, 2026.

Senior and Subordinated Debt Facilities

Each of the Company’s senior and subordinated debt facilities contain customary covenants, including the requirement to maintain certain financial measurements and provide lender reporting. Each of the senior and subordinated debt facilities also contain certain provisions in the event of default that entitle lenders to take certain actions including acceleration of amounts due under the facilities and acquisition of membership interests and assets that are pledged to the lenders under the terms of the senior and subordinated debt facilities. The facilities are non-recourse to the Company and are secured by net cash flows from Customer Agreements or inventories less certain operating, maintenance and other expenses that are available to the borrower after distributions to tax equity investors, where applicable. Under the terms of these facilities, the Company’s subsidiaries pay interest and principal from the net cash flows available to the subsidiaries. The Company was in compliance with all debt covenants as of September 30, 2026.

Non-Recourse Financings

In connection with each of the Company’s non-recourse debt (including securitized loans), assets (consisting of membership interests in project companies that own photovoltaic systems and related Customer Agreements) were contributed by the Company to special purpose subsidiaries of the Company (each a “Non-Recourse Borrower”). Each of such financings contains customary covenants including the requirement to provide reporting to the indenture trustee or collateral agent and, if applicable, ratings agencies. Each of the financings also contains certain provisions which entitle the indenture trustee or collateral agent to take certain actions upon the occurrence of an event of default, including acceleration of amounts due under the facilities and the foreclosure on the assets of the Non-Recourse Borrower that are pledged to the lenders under the terms thereof. The facilities are non-recourse to the Company and are secured by first priority security interests by each Non-Recourse Borrower in favor of the indenture trustee or collateral agent in all of the Non-Recourse Borrower’s assets including the cash flows from Customer Agreements which are available to each Non-Recourse Borrower after giving effect to certain operating, maintenance and other expenses and, where applicable, distributions to tax equity investors. As a result of such security interests, the assets of each Non-Recourse Borrower are not available to the creditors of the Company unless and until distributions from such entities are made to the Company as permitted under the applicable facility documentation. Under the terms of these financings, each Non-Recourse Borrower pays interest and principal from such net cash flows. The Company was in compliance with all debt covenants as of September 30, 2026.

Note 9. Derivatives

Interest Rate Swaps

The Company uses interest rate swaps to hedge variable interest payments due on certain of its term loans and aggregation facility. These swaps allow the Company to incur fixed interest rates on these loans and receive payments based on variable interest rates with the swap counterparty based on SOFR (daily, one month, three month) on the notional amounts over the life of the swaps. In December 2023, the Company started using interest rate swaptions to protect against adverse fluctuations in interest rates prior to expected future draws on the Company’s floating-rate facilities, at which point the Company enters into long-term interest rate hedges.

The interest rate swaps have been designated as cash flow hedges. The credit risk adjustment associated with these swaps is the risk of non-performance by the counterparties to the contracts. In the nine months ended September 30, 2026, the hedge relationships on the Company’s interest rate swaps have been assessed as highly effective as the quarterly assessment performed determined changes in cash flows of the derivative instruments have been highly effective in offsetting the changes in the cash flows of the hedged items, are expected to be highly effective in the future and the critical terms of the interest rate swaps match the critical terms of the underlying forecasted hedged transactions. Accordingly, changes in the fair value of these derivatives are recorded as a component of accumulated other comprehensive income, net of income taxes. Changes in the fair value of these derivatives are subsequently reclassified into earnings, and are included in interest expense, net in the Company’s statements of operations, in the period that the hedged forecasted transactions affect earnings. To the extent that the hedge relationships are not effective, changes in the fair value of these derivatives are recorded in other expenses, net in the Company’s statements of operations on a prospective basis.

The Company’s master netting and other similar arrangements allow net settlements under certain conditions. When those conditions are met, the Company presents derivatives at net fair value. As of September 30, 2026, the information related to these offsetting arrangements was as follows (in thousands):

(1) Comprised of 64 interest rate swaps which effectively fix the SOFR portion of interest rates on outstanding balances of certain loans under the senior section of the debt footnote table (see Note 8, Indebtedness) at 0.31% to 4.52% per annum. These swaps mature from August 13, 2027 to October 31, 2045.

(2) Comprised of 13 interest rate swaptions which effectively fix the SOFR portion of interest rates on future outstanding balances of certain loans under the senior revolving section of the debt footnote table (see Note 8, Indebtedness) at 4.44% to 5.16% per annum. These swaptions expire from October 7, 2026 to December 2, 2026 with potential underlying swaps maturing from July 31, 2048 to July 31, 2048.

As of December 31, 2025, the information related to these offsetting arrangements were as follows (in thousands):

The (gains) losses on derivatives designated as cash flow hedges recognized into OCI, before tax effect, consisted of the following (in thousands):

The (gains) losses on derivatives financial instruments recognized into the consolidated statements of operations, before tax effect, consisted of the following (in thousands):

All amounts in AOCI in the consolidated statements of redeemable noncontrolling interests and equity relate to derivatives, refer to the consolidated statements of comprehensive income.

The net (gains) losses on derivatives includes the tax effect of $12.4 million andnil for three months ended September 30, 2026 and 2025, respectively, and $14.9 million andnil for nine months ended September 30, 2026 and 2025, respectively.

During the next 12 months, the Company expects to reclassify $15.7 million of net gains on derivative instruments from accumulated other comprehensive income to earnings. There were 52 undesignated derivative instruments recorded by the Company as of September 30, 2026.

Note 10. VIE Arrangements

The Company consolidated various VIEs at September 30, 2026 and December 31, 2025. The carrying amounts and classification of the VIEs’ assets and liabilities included in the consolidated balance sheets are as follows (in thousands):

Note 11. Redeemable Noncontrolling Interests

During certain specified periods of time, noncontrolling interests in certain funding arrangements have the right to put all of their membership interests to the Company. During a specific period of time, the Company has the right to call all membership units of the related redeemable noncontrolling interests.

Note 12. Stock-Based Compensation

Stock Options

The following table summarizes the activity for all stock options under all of the Company’s equity incentive plans for the nine months ended September 30, 2026 (shares and aggregate intrinsic value in thousands):

Restricted Stock Units

The following table summarizes the activity for all restricted stock units (“RSUs”) under all of the Company’s equity incentive plans for the nine months ended September 30, 2026 (shares in thousands):

Employee Stock Purchase Plan

Under the Company’s 2015 Employee Stock Purchase Plan (“ESPP”), as amended, eligible employees are offered shares bi-annually through a 24-month offering period withsix-month purchase periods. Each purchase period begins on the first trading day on or after May 15 and November 15 of each year. Employees may purchase a limited number of shares of the Company’s common stock via regular payroll deductions at a discount of 15% of the lower of the fair market value of the Company’s common stock (i) on the first trading date of each offering period or (ii) on the exercise date. Employees may deduct up to 15% of payroll, with a cap of $25,000 of fair market value of the Company’s common stock in any calendar year and 10,000 shares of the Company’s common stock per employee per purchase period.

Stock-Based Compensation Expense

The Company recognized stock-based compensation expense, including ESPP expenses, in the consolidated statements of operations as follows (in thousands):

During the three months and nine months ended September 30, 2026, stock-based compensation expense capitalized to energy systems, net in the Company’s consolidated balance sheets was $1.7 million and $5.2 million, respectively, and was $2.2 million and $7.0 million during the three and nine months ended September 30, 2025, respectively.

Note 13. Income Taxes

The income tax rate for the three months ended September 30, 2026 and 2025 was (108.0)% and 0.8%, respectively, and for the nine months ended September 30, 2026 and 2025 was 9.1% and 19.9%, respectively. The differences between the actual consolidated effective income tax rate and the U.S. federal statutory rate were primarily attributable to the income tax benefit related to ITC (as defined below) transfer originations and net loss attributable to noncontrolling interests and redeemable noncontrolling interests.

The Company sells energy systems to Funds. As the Funds are consolidated by the Company, the gain on the sale of the assets has been eliminated in the consolidated financial statements, however gains on sale are recognized for tax purposes and the tax effects of which, both current and deferred, are included in the Company’s income tax provision.

The Company enters into investment tax credit (each, an "ITC" and collectively, the "ITCs") transfer agreements with third-party transferees to transfer to such third-parties, for cash, the ITCs generated by certain energy systems that have been or will be placed in service. The Company accounts for its share of ITC transfer proceeds under ASC 740, Income Taxes, as a reduction of income tax expense in the consolidated statement of operations during the period in which the credits arise (i.e., the flow-through method) and the tax equity investor’s share is distributed upon receipt. During the three months ended September 30, 2026 and 2025, the Company recognized income tax benefit to the Company of $65.4 million and $2.2 million, respectively, and $163.8 million and $207.7 million during the nine months ended September 30, 2026 and 2025, respectively, from such transfers.

Note 14. Commitments and Contingencies

Letters of Credit

As of September 30, 2026 and December 31, 2025, the Company had $18.7 million and $23.0 million, respectively, of unused letters of credit outstanding, which each carry fees of 0.50% -3.70% per annum and 0.50% -3.75% per annum, respectively.

Guarantees

Certain tax equity funds and debt facilities require the Company to maintain an aggregate amount of $35.0 million of unencumbered cash and cash equivalents at the end of each month.

Purchase Commitment

The Company has several purchase commitments, which have the ability to be canceled without significant penalties, with multiple suppliers to purchase $294.1 million of batteries by the end of the third quarter of 2027 and to purchase $2.1 billion of photovoltaic modules, inverters and batteries between fiscal 2026 and fiscal 2029.

Warranty Accrual

The Company accrues warranty costs as revenue is recognized for energy systems sales, based on the estimated future costs of meeting its warranty obligations. Warranty costs primarily consist of replacement costs for supplies and labor costs for service personnel since warranties for equipment and materials are covered by the original manufacturer’s warranty (other than a small deductible in certain cases). As such, the warranty reserve is immaterial in all periods presented. The Company makes and revises these estimates based on the number of energy systems under warranty, the Company’s historical experience with warranty claims, assumptions on warranty claims to occur over a systems’ warranty period and the Company’s estimated replacement costs. A warranty is provided for energy systems sold. However, for the energy systems under Customer Agreements, the Company does not accrue a warranty liability because those systems are owned by consolidated subsidiaries of the Company. Instead, any repair costs on those energy systems are expensed when they are incurred as a component of customer agreements and incentives costs of revenue.

ITC Indemnification

The Company is contractually committed to compensate its investors for any losses that they may suffer in certain limited circumstances resulting from reductions in ITCs, including any reduction in depreciable basis. Generally, such obligations would arise as a result of reductions to the value of the underlying solar energy systems as assessed by the IRS. The Company set the purchase prices and claimed values based on fair market values determined with the assistance of an independent third-party appraisal with respect to the systems that generate ITCs (and the associated depreciable basis) that are passed-through to, and claimed by, the Fund investors. In April 2018, the Company purchased an insurance policy providing for certain payments by the insurers in the event there is a final determination (including a judicial determination) that reduced the ITCs and depreciation claimed in respect of solar energy systems sold or transferred to most Funds through April 2018, or later, in the case of Funds added to the policy after such date. In general, the policy indemnifies the Company and related parties for additional taxes (including penalties and interest) owed in respect of lost ITCs, depreciation, gross-up costs and expenses incurred in defending such claim, subject to negotiated exclusions from, and limitations to, coverage. The Company purchased similar additional insurance policies in January 2021, October 2022, May 2023, March 2024, June 2024, March 2025, August 2025 and March 2026.

At each balance sheet date, the Company assesses and recognizes, when applicable, the potential exposure from this obligation based on all the information available at that time, including any routine audits undertaken by the IRS.

Litigation

The Company is subject to certain legal proceedings, claims, investigations, and administrative proceedings in the ordinary course of its business. The Company records a provision for a liability when it is both probable that the liability has been incurred and the amount of the liability can be reasonably estimated. The Company evaluates the adequacy of its legal reserves based on its assessment of many factors, including interpretations of the law and assumptions that ultimately may or may not be correct about the future outcome of each case based on available information. These provisions, if any, are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case. Depending on the nature and timing of any such proceedings that may arise, an unfavorable resolution of a matter could materially affect the Company’s future consolidated results of operations, cash flows, or financial position in a particular period.

In the normal course of business, the Company has from time to time been named as a party to various legal claims, actions, or complaints. While the outcome of these matters cannot currently be predicted with certainty, the Company does not currently believe that the outcome of any of these claims will have a material adverse effect, individually or in the aggregate, on its consolidated financial position, results of operations, or cash flows.

Note 15. Net Income Per Share

Basic net income per share is computed by dividing net income attributable to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income per share is computed by dividing net income attributable to common stockholders by the weighted-average number of common shares outstanding during the period adjusted to include the effect of potentially dilutive securities. Potentially dilutive securities are excluded from the computation of dilutive EPS in periods in which the effect would be antidilutive.

The computation of the Company’s basic and diluted net income per share is as follows (in thousands, except per share amounts):

The following shares were excluded from the computation of diluted net income per share as the impact of including those shares would be anti-dilutive (in thousands):

Note 16. Related Party Transactions

Advances Receivable—Related Party

Net amounts due from direct-sales professionals were $13.0 million and $8.6 million as of September 30, 2026 and December 31, 2025, respectively. The Company provided a reserve of $2.4 million and $2.6 million as of September 30, 2026 and December 31, 2025, respectively, related to advances to direct-sales professionals who have terminated their employment agreement with the Company.

Investment in Non-Controlled Joint Venture

During fiscal 2026, the Company entered into a joint venture partnership with a third-party investor, which is accounted for under the equity method. Revenues, net of intra-entity eliminations, for sales of newly originated energy systems to this joint venture represented approximately $467.5 million of the Company's energy systems and product sales revenues for the three months ended September 30, 2026 and $775.5 million for the nine months ended September 30, 2026. As of September 30, 2026, the Company had approximately $34.2 million in receivables from the joint venture within its System sales receivables in the consolidated balance sheet.