It is correct that all energy sources receive some form of subsidization, but it is the relative magnitude that is in question here. In the link you provided, renewables received 12.2 G$ from 2002-2008 while fossil fuels received 70.2 G$. In that time period, non-hydro renewables produced 155 Mtoe while oil, gas and coal produced 6397, 4073 and 3958 Mtoe respectively (BP Statistical Review). Per unit energy consumed, renewables (primarily relatively mature wind) therefore received 16 times the support of fossil fuels (if renewable electricity is converted to primary energy by dividing by 0.37).
I don’t think anyone disputes that the grid can accommodate small amounts of variable renewable generation without too many problems, especially in ideal wind locations like the central US. The problem is that serious issues start to materialize between 10 and 20% contribution of variable renewables and these issues get rapidly more acute from there. Somewhere around this point, renewables will most probably stagnate like nuclear did in the late 80s through the classic S-curve followed by all new technologies.
If we agressively expand subsidy programs and manage to increase wind and solar power by a factor of 10 by 2035 (roughly the time when we blow through the 2 deg C carbon budget), we would have just about made it to this saturation point (20% of electricity or 8% of primary energy) and fossil fuels will still supply around 80% of our primary energy.
The point is just that renewable energy is the slowest and most expensive way to combat climate change. For example, a recent study found that renewable energy subsidies cost 17 times more per unit CO2 avoided than an ETS.
As far as I can see, our best hope is for this senseless technology forcing to be replaced by a technology-neutral CO2 abatement mechanism. The market will quickly establish which is the cheapest way to cut carbon in different locations around the world and we would not even need to have this conversation because the market would do the talking for us. I strongly feel that greens should drop their fanatical support of wind and solar and instead push for technology-neutral climate policy. Otherwise we may very well wake up one decade from now and discover that the ideological pursuit of wind and solar power has done much more harm than good in the sustainability crisis of the 21st century.
Source: Schalk Cloete.