On Sun, Aug 19, 2012 at 12:53 PM, Keith Henson <span dir="ltr"><<a href="mailto:hkeithhenson@gmail.com" target="_blank">hkeithhenson@gmail.com</a>></span> wrote:<br><div class="gmail_quote"><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
> Straightforward analysis states that the cost to lift parts to GEO has to get down to $100/kg for power to be delivered at 2 cent a kWh. </blockquote><div><br>Straightforward? Forget launch costs, I would be very interested in seeing somebody build on the ground a photovoltaic or heat engine solar plant that converts sunlight to electricity, converts the electricity to microwaves, transmits the microwaves for one mile (not 23,000), then reconverts the microwaves back to electricity that can be sold profitably at 2 cent a kWh. I'm far from sure that power satellites would work economically even if you could get them into geosynchronous orbit free with the snap of your fingers.<br>
<br> John K Clark <br><br><br></div><br></div>