how so? it is a GT suggestion, so it belongs here(and, btw, GT should really get a forum secttion for suggestions)
EDIT: and it was posted here the first time anyway.
EDIT II.:
He also likes oil and liquids as much as we all do- but oil rarely gets used. We did use it a bit in the start, but our bio-steam plant replaced that need entirely, why not use oil as in real world in CSP power production? http://en.wikipedia.org/wiki/Solar_thermal_energy
That sounds a bit like rotary craft's solar power, which also melts sand and cobble to glas/lava when you have to many mirrors around the tower, might be a nice idea to have in the GT version as well(without the lava, that would be OP).