I want to do a similar project, but on my father-in-law's house! There I'll have more trouble because the backyard is all covered with cement and the place I want to use is a little distant from the house, so I'm thinking in put some solar panel and battery, there is a roof at this part, to protect the battery and I'll use the roof as a mean to collect water through a gutter. If I put this project I'll write about and share here!