To Clint Porter:
Regarding your post....
For instance, the billions in tax breaks that oil companies receive for
domestic exploration benefit owners of the oil companies, but they do not substantially affect the price of oil, because oil is traded in a world market and the impact of these subsidies on world supply is negligible. While this points out the disturbing lack of a rational basis for such gifts to oil company shareholders, it also means that oil exploration subsidies do not put alternative energy sources at a financial disadvantage in the marketplace.
The obvious difference is that the capital expenditure for producing polysilicon (and probably any other production facility for various types of PV) DOES reduce the cost of the final product.
All the more reason to subsidize PV and NOT oil exploration/production.