Kleiner Perkins and Google Ventures made a significant investment in solar SaaS firm Clean Power Finance (CPF) late last year. Until that time, CPF's business was providing a standardized software tool that lets solar panel installers speed up the sales proposal, rebate, and lead generation processes. Previous investors have included Claremont Creek Ventures, Clean Pacific Ventures, Sand Hill Angels, and clean tech investor Gary Kremen.

The firm was also considering the idea of providing point-of-purchase PPA financing, according to my sources.

Kremen, even before Clean Power Finance's Sept 2006 incorporation, had asked publicly, "Why can't buying solar be like buying a car with POS [point of sale] financing? Solar is in roughly the same price range -- you should get credit at the same time you make the purchase."

And last week, at a Trina Solar installer seminar, CPF publicly declared that they were offering residential PPAs.

Thang Nguyen, Strategic Account Director at CPF, said that one quarter of residential solar deals are done through a PPA, largely from firms requiring exclusive relationships.  The cash to finance these projects usually comes in the form of tax equity.  CPF's ultimate goal is to "help sell more solar systems." 

Unlike SolarCity or SunRun, Nguyen said that CPF "doesn't want to be branded in the entire equation." They'd like to consider themselves a "white label company" where "the integrator owns the customer."

Nguyen stressed that the customer in a PPA is not buying a solar system: "What you're really buying is electricity." Over the course of 20 years, a customer could pay $66,000 for electricity from a utility or $42,600 for the same kilowatt-hours from a rooftop leased solar system, according to Nguyen's presentation.

There are a few big names in residential solar leasing -- SolarCity, Sungevity, and SunRun. (SolarCity has their own installers; SunRun and Sungevity work with a network of installers.)  There are also other, smaller residential solar leasing firms such as Solar Universe, Ontility, SunPower, SolarCraft, Sun Edison, CentroSolar, and Suntech’s BriteLease program.

In a lease arrangement, the leasing company covers the cost of installing solar panels, typically on the rooftop of the customer’s home. In this model, the leasing company owns the system, rather than the homeowner. Solar leasing companies receive any state and federal tax credits and other incentives available for alternative-energy installations. The homeowner agrees to pay the leasing company a predetermined monthly payment over the term of the lease, and receives the financial and environmental benefits from all of the power produced by the solar energy system. Solar customers buy additional power as needed from their local utility at the going rate. They may also sell excess energy back to the local utility.

Solar leases typically run between 15 and 20 years. If the customer sells the home within that time, the lease agreement transfers to the new homeowner, pending credit approval.  

CPF joins the list of PPA providers, a list that can afford to be longer in order to make it easier to get solar on the roofs of more homeowners.

Tags: clean power, clean power finance, gary kremen, ppa, ppas, residences, residential, residential energy, residential energy consumption, residential leasing, residential ppa, residential pv, residential rooftop, residential solar, solar leasing