I am not sure that is a meaningful position -- it would require that there is an alternative to coal and fossil fuels (other than neuclear).
Certainly you can use wind or solar but they are not realistic because they are too limited and too costly for our current and future needs. There are bunch of other technologies that might one day make the cut, but what will you change to until they (may) become available?
This is where a market based system comes a bit short. Fossil fuel prices are going to continue rising. As they rise, they'll put pressure on everything. They are a pillar of our modern economy. Our ability to do large scale investment and infrastructure change is reliant on our ability to redirect the outputs of our economy, and abundant energy.
In other words, the best time to invest in new massive sources of wind and solar is when you still have cheap fossil fuels, not when your economy is staggering from oil shocks, and your cost of construction has risen by like 20% due to energy costs.
Please don't automatically assume the market is falling short here. Many governments including our own play a huge part in manipulating the price of fuels.
I actually agree with you...at present, we do not have any great alternatives (on the basis of cost-effectiveness) - although nuclear energy is an up-and-coming candidate. However, I do think we should at least reduce foreign dependence on energy - it complicates our relationships, twists our political motives, and enriches countries with questionable motives. By some estimates, we have enough natural gas under native soil to make up for foreign oil several times over, only environmental regulations prevent tapping many of these resources.
Certainly you can use wind or solar but they are not realistic because they are too limited and too costly for our current and future needs. There are bunch of other technologies that might one day make the cut, but what will you change to until they (may) become available?