Most of the irrigation systems I have used were electric. However this was mostly on veg and there is more money involved, and many of these systems are looking at being able to supply 100 acre inches in 24hrs upwards.
The factors are many, as has been said before, bringing in power being key.
I think I can use some new Solar technology to cover that aspect.................
I might be wrong ...........but I think it might be doable.
Getting profesinal advice is a good idea before spending a lot of $$