PV and appropriate storage "batteries" could provide 90% of Israel's future electricity needs. The remainder would come from gas turbines. What you rudely refer to as "Those idiots in Arizona" have documented every detail (technical and economic) of their pioneering PV work - I refer to Tucson Electric Power - and have thus quantified for the world the viability of this power source.
Prominent Druze sheikh al-Balous killed in Syria (Haaretz)
from the article: 'Born-again Ziontist' revolutionizing solar energy field