It think wind turbines and hydroelectric installations on El-Assi and Litani rivers would be more than enough in order to cover our electrical household consumption needs.
Geothermal installations would be a great idea to warm up groups of houses in winter. Great wood/mazout consumption reduction!
But such installations are a bit difficult and expensive for locals to accomplish alone. Government should take care of it. Or at least take care of managing it. Back here in Switzerland they're really improving this technology and it's expanding like wildfire!
Injecting huge volumes of water not very deep underground and then pumping it up after it would have reached needed temperature! It then circulates across already put in place installations between a group of 5 to ten houses.
Few bucks put at first. But lifelong savings gained! Sum up all the mazout each family pays for every winter!