The 12 year loans are where people can usually jump in with zero down but as noted people do usually move out before they can realize the actual investment. The tax credit helps for sure, but the price point is definitely a barrier to entry for the vast majority of people. Even then, not all homes have good roofs, some are in the shade, people fail credit, tons of variables when attempting to make a sale. I do my best to limit the variables but you cannot win them all. I'm a huge advocate for solar but with FL's low electricity rates and high energy usage (especially in the summer) doing a 100% offset is too costly for the majority of people who actually have a home that meets all the qualifications.