There are no answers to the coming energy shortage.
None.
http://www.theoildrum.com/node/2615#comment-198597
The amount of energy required to fabricate PV cells since they are the most efficient, would double gasoline and electric prices over night, collapsing our economy. It is impossible to have PV cells make up the difference in energy shortfalls in the next 10 years.
The only way out of our energy mess is to live like hermits until 2020, while massivly producing PV cells, Nuclear Plants, and doubling crop outputs so that Ethanol is an alternative and not a sunk cost.
If peak oil happens in the next 10 years, modern society is finished. From the looks of things, peak oil may have occured in 2005.
Cheers.