Financing Solar - A Start

PSE&G's Innovative Solar Loan Program Now Available to Residential ...

I am trying to decode the marketing/eco/corporate babble in this press release.

Things that are not 100% clear:

• Owner gets 40-60% loan as solar credits. Does this mean it needs to be repayed, or what?
  
• What does solar credit mean?
• How much are the other incentives?

After reading it a few times, the PSE&G will use the power produced to pay for 40-60% of it. New Jersey power company. Looks like there will also be limited funding.