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Exhibit 21.1

List of Subsidiaries of Sunnova Energy International Inc. as of February 19, 2024

Name of Subsidiary						Jurisdiction of Incorporation
Enerlast Insurance Group, LLC						Texas
Helios Depositor, LLC						Delaware
Helios Issuer, LLC						Delaware
Moonroad Services Group, LLC						Delaware
Starlane Manager, LLC						Delaware
Starlane Owner, LLC						Delaware
Sunnova ABS Holdings III, LLC						Delaware
Sunnova ABS Holdings IV, LLC						Delaware
Sunnova ABS Holdings IX, LLC						Delaware
Sunnova ABS Holdings, LLC						Delaware
Sunnova ABS Holdings V, LLC						Delaware
Sunnova ABS Holdings VI, LLC						Delaware
Sunnova ABS Holdings VII, LLC						Delaware
Sunnova ABS Holdings VIII, LLC						Delaware
Sunnova ABS Holdings X, LLC						Delaware
Sunnova ABS Holdings XI, LLC						Delaware
Sunnova ABS Holdings XII, LLC						Delaware
Sunnova ABS Holdings XIII, LLC						Delaware
Sunnova ABS Management, LLC						Delaware
Sunnova AP 6 Warehouse II, LLC						Delaware
Sunnova AP5-A, LLC						Delaware
Sunnova Asset Portfolio 4, LLC						Delaware
Sunnova Asset Portfolio 5 Holdings, LLC						Delaware
Sunnova Asset Portfolio 5, LLC						Delaware
Sunnova Asset Portfolio 6 Holdings, LLC						Delaware
Sunnova Asset Portfolio 6, LLC						Delaware
Sunnova Asset Portfolio 7 Holdings, LLC						Delaware
Sunnova Asset Portfolio 8 Holdings, LLC						Delaware
Sunnova Asset Portfolio 8, LLC						Delaware
Sunnova Asset Portfolio 9 Holdings, LLC						Delaware
Sunnova Asset Portfolio 9, LLC						Delaware
Sunnova Aurora I Depositor, LLC						Delaware
Sunnova Aurora I Holdings, LLC						Delaware
Sunnova Aurora I Issuer, LLC						Delaware
Sunnova Aurora I Manager, LLC						Delaware
Sunnova Aurora I Owner, LLC						Delaware
Sunnova Business Markets Asset Owner, LLC						Delaware
Sunnova Business Markets Borrower, LLC						Delaware
Sunnova Business Markets Developer Co, LLC						Delaware
Sunnova Business Markets Holdings, LLC						Delaware
Sunnova C&I Management, LLC						Delaware
Sunnova Commercial Solar Asset Owner, LLC						Delaware
Sunnova Commercial Solar Loan Owner, LLC						Delaware
Sunnova Community Microgrids California, LLC						California
Sunnova Energy B.V.						Netherlands

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Sunnova Energy Corporation						Delaware
Sunnova Energy GmbH						Germany
Sunnova Energy Guam, LLC						Delaware
Sunnova Energy Puerto Rico, LLC						Delaware
Sunnova EZ-Own Portfolio, LLC						Delaware
Sunnova Helios II Depositor, LLC						Delaware
Sunnova Helios II Issuer, LLC						Delaware
Sunnova Helios III Depositor, LLC						Delaware
Sunnova Helios III Issuer, LLC						Delaware
Sunnova Helios IV Depositor, LLC						Delaware
Sunnova Helios IV Issuer, LLC						Delaware
Sunnova Helios IX Depositor, LLC						Delaware
Sunnova Helios IX Issuer, LLC						Delaware
Sunnova Helios V Depositor, LLC						Delaware
Sunnova Helios V Issuer, LLC						Delaware
Sunnova Helios VI Depositor, LLC						Delaware
Sunnova Helios VI Issuer, LLC						Delaware
Sunnova Helios VII Depositor, LLC						Delaware
Sunnova Helios VII Issuer, LLC						Delaware
Sunnova Helios VIII Depositor, LLC						Delaware
Sunnova Helios VIII Issuer, LLC						Delaware
Sunnova Helios X Depositor, LLC						Delaware
Sunnova Helios X Issuer, LLC						Delaware
Sunnova Helios XI Depositor, LLC						Delaware
Sunnova Helios XI Issuer, LLC						Delaware
Sunnova Helios XII Depositor, LLC						Delaware
Sunnova Helios XII Issuer, LLC						Delaware
Sunnova Helios XIII Depositor, LLC						Delaware
Sunnova Helios XIII Issuer, LLC						Delaware
Sunnova Hestia Holdings, LLC						Delaware
Sunnova Hestia I Borrower, LLC						Delaware
Sunnova Hestia I Depositor, LLC						Delaware
Sunnova Hestia I Issuer, LLC						Delaware
Sunnova Hestia I Lender, LLC						Delaware
Sunnova Hestia II Borrower, LLC						Delaware
Sunnova Hestia II Depositor, LLC						Delaware
Sunnova Hestia II Issuer, LLC						Delaware
Sunnova Hestia II Lender, LLC						Delaware
Sunnova Intermediate Holdings, LLC						Delaware
Sunnova Inventory Holdings, LLC						Delaware
Sunnova Inventory Management, LLC						Delaware
Sunnova Inventory Pledgor, LLC						Delaware
Sunnova Inventory Supply Holdings, LLC						Delaware
Sunnova Inventory Supply, LLC						Delaware
Sunnova LAP Holdings, LLC						Delaware
Sunnova LAP I, LLC						Delaware
Sunnova LAP II, LLC						Delaware
Sunnova Lease Vehicle 3-HI, LLC						Delaware

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Sunnova Loan Distribution, LLC						Delaware
Sunnova Loan Servicing, LLC						Delaware
Sunnova Management, LLC						Delaware
Sunnova Microgrid Holdings, LLC						Delaware
Sunnova Protect Holdings, LLC						Delaware
Sunnova Protect Management, LLC						Delaware
Sunnova Protect OpCo, LLC						Delaware
Sunnova RAYS I Depositor, LLC						Delaware
Sunnova RAYS I Holdings, LLC						Delaware
Sunnova RAYS I Issuer, LLC						Delaware
Sunnova RAYS I Management, LLC						Delaware
Sunnova SAP I, LLC						Delaware
Sunnova SAP II, LLC						Delaware
Sunnova SAP IV, LLC						Delaware
Sunnova SLA Management, LLC						Delaware
Sunnova Sol Depositor, LLC						Delaware
Sunnova Sol Holdings, LLC						Delaware
Sunnova Sol II Depositor, LLC						Delaware
Sunnova Sol II Holdings, LLC						Delaware
Sunnova Sol II Issuer, LLC						Delaware
Sunnova Sol II Manager, LLC						Delaware
Sunnova Sol II Owner, LLC						Delaware
Sunnova Sol III Depositor, LLC						Delaware
Sunnova Sol III Holdings, LLC						Delaware
Sunnova Sol III Issuer, LLC						Delaware
Sunnova Sol III Manager, LLC						Delaware
Sunnova Sol III Owner, LLC						Delaware
Sunnova Sol Issuer, LLC						Delaware
Sunnova Sol IV Depositor, LLC						Delaware
Sunnova Sol IV Holdings, LLC						Delaware
Sunnova Sol IV Issuer, LLC						Delaware
Sunnova Sol IV Manager, LLC						Delaware
Sunnova Sol IV Owner, LLC						Delaware
Sunnova Sol Manager, LLC						Delaware
Sunnova Sol Owner, LLC						Delaware
Sunnova Sol V Depositor, LLC						Delaware
Sunnova Sol V Holdings, LLC						Delaware
Sunnova Sol V Issuer, LLC						Delaware
Sunnova Sol VI Depositor, LLC						Delaware
Sunnova Sol VI Holdings, LLC						Delaware
Sunnova Sol VI Issuer, LLC						Delaware
Sunnova Sol VI Manager, LLC						Delaware
Sunnova Sol VI Owner, LLC						Delaware
Sunnova SSA Management, LLC						Delaware
Sunnova TE Management I, LLC						Delaware
Sunnova TE Management II, LLC						Delaware
Sunnova TE Management III, LLC						Delaware
Sunnova TE Management, LLC						Delaware

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Sunnova TEP 6-A Manager, LLC						Delaware
Sunnova TEP 6-A, LLC						Delaware
Sunnova TEP 6-B Manager, LLC						Delaware
Sunnova TEP 6-B, LLC						Delaware
Sunnova TEP 6-C Manager, LLC						Delaware
Sunnova TEP 6-C, LLC						Delaware
Sunnova TEP 6-D Manager, LLC						Delaware
Sunnova TEP 6-D, LLC						Delaware
Sunnova TEP 6-E Manager, LLC						Delaware
Sunnova TEP 6-E, LLC						Delaware
Sunnova TEP 7-A Manager, LLC						Delaware
Sunnova TEP 7-A, LLC						Delaware
Sunnova TEP 7-B Manager, LLC						Delaware
Sunnova TEP 7-B, LLC						Delaware
Sunnova TEP 7-C Manager, LLC						Delaware
Sunnova TEP 7-C, LLC						Delaware
Sunnova TEP 7-D Manager, LLC						Delaware
Sunnova TEP 7-D, LLC						Delaware
Sunnova TEP 7-E Manager, LLC						Delaware
Sunnova TEP 7-E, LLC						Delaware
Sunnova TEP 7-F, LLC						Delaware
Sunnova TEP 7-F Manager, LLC						Delaware
Sunnova TEP 7-G, LLC						Delaware
Sunnova TEP 7-G Manager, LLC						Delaware
Sunnova TEP 8-A, LLC						Delaware
Sunnova TEP 8-A Manager, LLC						Delaware
Sunnova TEP 8-B, LLC						Delaware
Sunnova TEP 8-B Manager, LLC						Delaware
Sunnova TEP 8-C, LLC						Delaware
Sunnova TEP 8-C Manager, LLC						Delaware
Sunnova TEP 8-D, LLC						Delaware
Sunnova TEP 8-D Manager, LLC						Delaware
Sunnova TEP 8-E, LLC						Delaware
Sunnova TEP 8-E Manager, LLC						Delaware
Sunnova TEP Developer, LLC						Delaware
Sunnova TEP Holdings, LLC						Delaware
Sunnova TEP I Developer, LLC						Delaware
Sunnova TEP I Holdings, LLC						Delaware
Sunnova TEP I Manager, LLC						Delaware
Sunnova TEP I, LLC						Delaware
Sunnova TEP II Developer, LLC						Delaware
Sunnova TEP II Holdings, LLC						Delaware
Sunnova TEP II Manager, LLC						Delaware
Sunnova TEP II, LLC						Delaware
Sunnova TEP II-B, LLC						Delaware
Sunnova TEP III Manager, LLC						Delaware
Sunnova TEP III, LLC						Delaware
Sunnova TEP Inventory, LLC						Delaware

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Sunnova TEP IV-A Manager, LLC						Delaware
Sunnova TEP IV-A, LLC						Delaware
Sunnova TEP IV-B Manager, LLC						Delaware
Sunnova TEP IV-B, LLC						Delaware
Sunnova TEP IV-C Manager, LLC						Delaware
Sunnova TEP IV-C, LLC						Delaware
Sunnova TEP IV-D Manager, LLC						Delaware
Sunnova TEP IV-D, LLC						Delaware
Sunnova TEP IV-E Manager, LLC						Delaware
Sunnova TEP IV-E, LLC						Delaware
Sunnova TEP IV-F Manager, LLC						Delaware
Sunnova TEP IV-F, LLC						Delaware
Sunnova TEP IV-G Manager, LLC						Delaware
Sunnova TEP IV-G, LLC						Delaware
Sunnova TEP OpCo, LLC						Delaware
Sunnova TEP Resources, LLC						Delaware
Sunnova TEP V-A Manager, LLC						Delaware
Sunnova TEP V-A, LLC						Delaware
Sunnova TEP V-B Manager, LLC						Delaware
Sunnova TEP V-B, LLC						Delaware
Sunnova TEP V-C Manager, LLC						Delaware
Sunnova TEP V-C, LLC						Delaware
Sunnova TEP V-D Manager, LLC						Delaware
Sunnova TEP V-D, LLC						Delaware
Sunnova TEP V-E Manager, LLC						Delaware
Sunnova TEP V-E, LLC						Delaware
Sunstreet TEP Inventory, LLC						Delaware