Financing options for solar energy storage systems include cash purchases, solar loans, leases, power purchase agreements (PPAs), and government incentives. . Mosaic is a national leader in providing flexible financing and loan options for homeowners that offer different terms and options for projects of all types. I'm also including some perspectives from my panel last week at the UNC Cleantech Summit. . Yes, there are various financing options available for energy storage systems. They provide loans up to. .