Solar Energy analysis

I agree. In ten years it seems the price of solar panels will be suited to outperform the electric utility. Meanwhile I am very interested in solar thermal-to-mechanical conversion. It has two basic stages: a solar thermal collector and a "green machine" The solar thermal collector can be a solar pond of brine. In Israel, they have 8 feet deep ponds of brine. When the sun heats the pond all day, the temperature of the deep part of the pond exceeds 90 deg centigrade. The "green machine" will have an intake of the "hot" brine and heat-exchanges the heat to another circuit of "closed loop refrigerant that drives a turbine." The refrigerant loop also has a compressor to collect vapor(ed) refrigerant and throw away the heat via a cooler/condenser and allow it to evaporate again driving the turbine again and repeating the cycle. It's that same technology running 500MW geothermal plants in Israel. Electratherm in US has green machines of 50KW range. That sounds something worth leaving the next generations: access to pollution-free renewable energy available anywhere where the sun shines! These solar ponds can retain heat even at night! If you are interested to be part of this movement. please email totoarrieta at yahoo dot com Cheers