Specific solar loan
With a special solar loan, the cost of finance may be slightly more expensive, as you may be charged a higher interest rate. This is because the loan is not secured by something as credible as your property. However, at current market rates the difference in interest rates is almost negligible.
The advantage of a solar loan is that they are far easier to have approved, and you are likely to pay it off a whole lot sooner; as you are only paying off your solar purchase cost, not the cost of your home and solar system. If you intend to finance your solar power system via a loan, you can either speak to your bank manager and add it to your existing mortgage, or take out a specific solar loan.