KBRA assigns a preliminary rating to one class of notes issued by Sunrun Neptune Issuer 2024-1, LLC. The transaction is collateralized by a diversified pool of 27,094 leases and Power Purchase Agreements (PPAs) associated with residential solar photovoltaic installations (PV Systems), and the associated SRECs, if applicable. The total aggregate discounted solar asset balance (ADSAB) based on a discount rate of 7.5% (PV7.5 ADSAB), consisting of the discounted payments of the leases and PPAs is approximately $277.7 million. The securitization share of the ADSAB is approximately $271.1 million.

The three largest geographic concentrations include California, Arizona, and New Jersey, which together represent approximately 58.3% of the number of PV Systems and approximately 57.7% of the ADSAB. The portfolio consists of approximately 57.3% PPA agreements and 38.5% lease agreements by ADSAB of customer contracts with monthly payments and approximately 48.0% PPA agreements and 52.0% lease agreements with monthly payments by count. Approximately 16.1% of the contracts by count are fully prepaid. The weighted average original and remaining tenor of the PPAs and leases is 240 months, and 159 months, respectively. The weighted average FICO of the underlying customers of the PV Systems is 739.

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Methodologies

• ABS: General Global Rating Methodology for Asset Backed Securities
• Structured Finance: Global Structured Finance Counterparty Methodology
• ESG Global Rating Methodology

Disclosures

Further information on key credit considerations, sensitivity analyses that consider what factors can affect these credit ratings and how they could lead to an upgrade or a downgrade, and ESG factors (where they are a key driver behind the change to the credit rating or rating outlook) can be found in the full rating report referenced above.

A description of all substantially material sources that were used to prepare the credit rating and information on the methodology(ies) (inclusive of any material models and sensitivity analyses of the relevant key rating assumptions, as applicable) used in determining the credit rating is available in the Information Disclosure Form(s) located here.

Information on the meaning of each rating category can be located here.

Further disclosures relating to this rating action are available in the Information Disclosure Form(s) referenced above. Additional information regarding KBRA policies, methodologies, rating scales and disclosures are available at www.kbra.com.

About KBRA

Kroll Bond Rating Agency, LLC (KBRA) is a full-service credit rating agency registered with the U.S. Securities and Exchange Commission as an NRSRO. Kroll Bond Rating Agency Europe Limited is registered as a CRA with the European Securities and Markets Authority. Kroll Bond Rating Agency UK Limited is registered as a CRA with the UK Financial Conduct Authority. In addition, KBRA is designated as a designated rating organization by the Ontario Securities Commission for issuers of asset-backed securities to file a short form prospectus or shelf prospectus. KBRA is also recognized by the National Association of Insurance Commissioners as a Credit Rating Provider.

Doc ID: 1003592

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