You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
I have a lot of experience in the solar industry overseas. Would be happy to help, I can name a few different installers here I've looked into that id probably opt to go with :)
Any idea of the size/type of system you want?