EXHIBIT 21.1
SUBSIDIARIES OF THE REGISTRANT

Subsidiary
   Jurisdiction
Cobalt Upwind Holdings LLC
Delaware
HA AllStrong LLC
Delaware
HA Antelope DSR 3 LLC
Delaware
HA Athena Capital Holdings LLC
Delaware
HA Blue Grass LLC
Delaware
HA Buckeye Holdings LLC
Delaware
HA Coy Hill Road LLC
Delaware
HA CLP Funding LLC
Delaware
HA C-PACE 2019-1 Issuer LLC
Delaware
HA C-PACE SAC LLC
Delaware
HA Daybreak Holdings LLC
Delaware
HA Driving Range A LLC
Delaware
HA Driving Range C LLC
Delaware
HA EECI Lender LLC
Delaware
HA EECI LLC
Delaware
HA EMaaS Lender LLC
Delaware
HA FMAC Holdings LLC
Delaware
HA FMAC K102 LLC
Delaware
HA FMAC KG02 LLC
Delaware
HA Fusion Holdings LLC
Delaware
HA Fusion LLC
Delaware
HA Galileo LLC
Delaware
HA Galileo 2 LLC
Delaware
HA Helix LLC
Delaware
HA Highlander LLC
Delaware
HA INV Buckeye LLC
Delaware
HA INV Gunsight LLC
Delaware
HA Juniper LLC
Delaware
HA Juniper II LLC
Maryland
HA Land Lease I LLC
Delaware
HA Land Lease II LLC
Delaware
HA Land Lease Holdings LLC
Delaware
HA Land Lease Holdings II LLC
Delaware
HA PACE Origination LLC
Delaware
HA PACE Warehouse LLC
Delaware
HA PanelCo Lender LLC
Delaware
HA Rooftop Holdings LLC
Delaware
HA Rooftop I LLC
Delaware
HA San Pablo Raceway LLC
Delaware
HA Spencer Road LLC
Delaware
HA SRC Holdings LLC
Delaware
HA SRC Lender LLC
Delaware
HA Sun Streams LLC
Delaware
HA Sunrise LLC
Delaware
HA SunStrong Capital LLC
Delaware
HA Thrive LLC
Delaware
HA Virginia Land LLC
Delaware
HA WG Funding LLC
Maryland
HA Wildcat LLC
Delaware
HA Wind I LLC
Delaware
HA Wind II LLC
Delaware





HA Wind IV LLC
Delaware
Hannie Mae Goco LLC
Maryland
Hannie Mae II LLC
Maryland
Hannie Mae IV LLC
Maryland
Hannie Mae V LLC
Maryland
Hannie Mae XI LLC
Maryland
Hannie Mae XII LLC
Maryland
Hannie Mae XIII LLC
Maryland
Hannie Mae XIV LLC
Maryland
Hannie Mae XVII LLC
Maryland
Hannie Mae XVIII LLC
Maryland
Hannie Mae LLC
Virginia
Hannie Mae SRS Funding LLC
Maryland
Hannon Armstrong Capital, LLC
Maryland
Hannon Armstrong KCS Funding LLC
Maryland
Hannon Armstrong Securities, LLC
Maryland
Hannon Armstrong Sustainable Infrastructure, L.P.
Delaware
HASI ECON 101 LLC
Delaware
HASI OBS OP A LLC
Maryland
HASI SYB I LLC
Maryland
HASI SYB 2017-1 LLC
Delaware
HASI SYB Trust 2016-2 Holdings LLC
Delaware
HAT Holdings I LLC
Maryland
HAT Holdings II LLC
Maryland
HAT OBS OP A LLC
Maryland
HAT OBS OP 5 LLC
Maryland
HAT Scorpio Capital Lender LLC
Delaware
HAT Solar Sail Capital Lender LLC
Maryland
HAT SYB I LLC
Maryland
HAT SYB Trust 2016-2 Holdings LLC
Delaware
HAT Terrier Acquisition LLC
Delaware
HAT Terrier Capital Lender LLC
Maryland
HAT Ultralight Capital Lender LLC
Delaware
Lannie Mae LLC
Maryland
Lannie Mae Depositor LLC
Maryland
Rhea Borrower (HASI) LLC
Delaware
Rhea Borrower (HAT I) LLC
Delaware
Rhea Borrower (HAT II) LLC
Delaware
Strong Upwind Holdings LLC
Delaware
Strong Upwind Holdings II LLC
Delaware
Strong Upwind Holdings III LLC
Delaware
Strong Upwind Residual LLC
Delaware
SunStrong Capital Lender Holdings LLC
Maryland
SunStrong Capital Lender LLC
Maryland
SunStrong Capital Lender 2 LLC
Maryland
SunStrong Capital Lender 3 LLC
Maryland
SunStrong Capital Lender 6 LLC
Maryland
Titan Borrower (HASI) LLC
Delaware
Titan Borrower (HAT I) LLC
Delaware
Titan-Rhea Holdings (HASI) LLC
Delaware
Titan-Rhea Holdings (HAT I) LLC
Delaware
Titan-Rhea Holdings (HAT II) LLC
Delaware
 
Exh. 21.1-1