The solar lease has become a huge driver of revenue from solar installers such as SolarCity (NASDAQ:SCTY) and SunPower (NASDAQ:SPWR). But equity financing that takes advantage of tax credits is becoming a limiting factor to industry growth. One alternative is the solar loan, something SunPower recently unleashed in Australia. Solar analyst Travis Hoium covers why this and other financing options are so important to solar growth. 

Fool contributor Travis Hoium manages an account that owns shares of SunPower. He also owns shares of SunPower and has long January 2015 $5, $7, $15, $25, and $40 calls on SunPower. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.