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To: TobagoJack who wrote (131767)	3/8/2017 7:01:52 AM
From: Haim R. Branisteanu	Respond to of 217764

yes, and take into account that the actual efficiency of present silicon is around 18% decreasing 0.45% for every 1C above 25C. Therefore CdTe thin films are attractive. Add to this the dc ac conversion and you lose on average another 15% as presented in my block diagram on Slideshare of May 2015. DOE started a program to evaluate to go back to DC in most office building and homes and shells out grants for solutions. One solution is installing solar panels over water reservoirs to lower evaporation and increasing moisture in arid areas, or make use of what is called thermo-solar panels that deliver both hot water 65C and electricity in residential setups. Siemens proved that DC is more efficient over long distances at high voltage and most offshore wind farms work on DC as the undersea cable eats up a lot of energy of alternate current due their heavy shielding. I could go on, on this for hours but Tesla invention of AC motors and network transformers form over 100 years ago hit a big roadblock.