On the internet you can find numerous articles about solar demand exceeding supply. For example, here is a September 17, 2005 article about demand exceeding supply.

Futhermore there are a number of forces at play causing the demand for solar to even further increase. A few are itemize here.

Need for non-wind renewable energy (Already realized by Texas, and Wales. )
Incentives and rebates.
Educational Programs such as those afford by Solar Energy International
Solar Events such as SolFest 2005
Global Warming concerns
Air Pollution concerns
Water Pollution concerns
Worldwide wind turbine shortages
Peak Oil concerns

Even the nicer looking systems, themselves, such as some of the Evergreen systems mentioned above are a force increasing the demand for solar.

Would grocery shopping at the Woodlands Market (picture, article) cause you to go solar?
Although that particular system is a non-Evergreen Solar system it is nevertheless a force increasing the demand for solar.
Likewise, for this 904kW arrary at FedEx Corporation’s hub at Oakland International Airport in California.

Furthermore, wineries have been going solar and the ones that have will be a force increasing the demand for solar whenever people go out to the wineries to run through the vines, stomp the grapes, and taste the wines.

Now, we have an EPA challenge focusing demand:
EPA challenges U.S. companies to double green power purchases December 13, 2006.
“Large companies in the United States have been asked by government to double their purchase of green power.
The U.S. Environmental Protection Agency wants ‘Fortune 500’ companies to increase their use of electricity from renewable energy facilities using solar, wind, geothermal, biomass, biogas and low-impact hydro. The goal of the challenge is to surpass 5 billion kilowatt hours of green power purchases among participating companies.”