OK, I broke down and consulted the Great Oracle, Wikipedia, and found:
'Wind power market penetration is expected to reach 3.35 percent by 2013 and 8 percent by 2018'
Electricity Generation from Solar
Year Energy (TWh) % of Total
2005 3.7 0.02%
2006 5.0 0.03%
2007 6.7 0.03%
2008 11.2 0.06%
2009 19.1 0.09%
2010 30.4 0.14%
2011 58.7 0.27%
2012 93.0 0.41%
So recent values of % of total power are a bit better than I had been quoting, according to this source, .4% for solar in '12 and 3.3% for wind by the end of '13, so probably collectively they are over 4% already, or will be soon.
Even better news is that they are on a trajectory that should make them major players in just a few years:
8% for wind by 2018 according to this source. Furthermore:
GE has installed a prototype wind turbine with onboard battery similar to that of an electric car, equivalent of 1 minute of production. Despite the small capacity, it is enough to guarantee that power output complies with forecast for 15 minutes, as the battery is used to eliminate the difference rather than provide full output. The increased predictability can be used to take wind power penetration from 20 to 30 or 40 per cent. The battery cost can be retrieved by selling burst power on demand and reducing backup needs from gas plants.
So if wind keeps doubling about every four years, and these innovations allow to reach 40% penetration, we could get there by about 2027 or so. (And keep in mind that there are other means of getting storage available already, and surely this will not be the last innovation in this area.)
As for solar, if it keeps on its doubling-to-tripling-every-two-years rate it has had for the last few years, it could surpass wind by 2020 or shortly there after, at which point, together they would make up about a quarter of all power sources in the world.
Of course, various factors could come along to slow or accelerate these levels of growth.
"General Electric's Chief Engineer predicts grid parity without subsidies in sunny parts of the United States by around 2015." That could be a major accelerant in the near future.
But none of this makes terribly much difference unless we start actually retiring coal plants in droves and start using much less oil; basically, until we stop UNsequestering carbon at the massive rate of 10+ billion tons per year.
When I starting hearing about discussions of whether the UN or other entities should go in to bomb a coal mine or oil derrick because it operating them comprised a violation of international law, then I will know that we have become serious about reducing (however marginally at that point, since we are starting 40-50 behind schedule) future horrors of ourselves and our children.
I'm not holding my breath.
(It all reminds me of that line from the Dylan song, "You ain't goin' nowhere":
We'll climb that hill, no matter how steep,
After we're way past it.
ETA: I see that the second line is a variation from the original, which said, "When we come up to it." I find the variation more fitting and more interesting. )