Hey, we have systems like these in Israel (where I am currently residing). I know of at least two - one in Haifa and one at Masada. The Masada one is out in the middle of nowhere and would be too expensive for me to go joyriding on, but the one in Haifa is like an hour from me by train. If you all would like, I could go to the one in Haifa and find out about all the details on its efficiency, take pics and videos, etc. If I get enough people here liking this message, I'll go ahead and do this on a day a have off from work. Just tell me things I should look for and questions for me to answer for when I go.