Best Practices Can Lower Solar Financing Costs

The Solar Access to Public Capital (SAPC) working group has released new best practices guidelines for solar photovoltaic (PV) systems, with the goal of increasing investor confidence in the long-term viability of PV systems. The guides—SAPC Best Practices in PV System Installation ( and SAPC Best Practices in PV Operations and Maintenance (—were developed by SAPC subcommittees, each involving dozens of solar and finance entities.

The SAPC working group, convened by the U.S. Department of Energy’s National Renewable Energy Laboratory, comprises 425 members of the PV market chain, including development, legal, financial, accounting, engineering, and other communities engaged in solar asset deployment, finance, and operation.

The guides include recommended contractor and provider qualifications, key performance indicators, links to external resources, and additional best practices. Additional SAPC activities include standardization of solar contract templates, development of performance datasets, and engagement of rating agencies via a mock securitization process to understand their risk perspectives of the asset class.


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