Modern societies need a lot of modern fuels and so far, carbon based fuels are the most efficient. But where did the energy that is in our carbon based fuels come from? It was created a really long time ago by the sun and then stored in organic matter. So we run around the planet looking for places where this organic muck is stored in large enough quantities to refine and distribute.
But what if we could use the same ultimate resource (the sun) to generate energy as we need it. That is what plants do, so it is no huge surprise that we would be trying to copy the process that plants use. But so far, our best efforts are still not very efficient. The best solar panels convert around 10% to 15% of the sun’s energy into usable power. And while costs for solar panels are falling, they are not all that cheap yet. BTW, this is a price that I am keeping an eye on.
Can we do better? Well, a lot of people think we could. And they are experimenting with ways to tweak the conversion process. If we can do this — especially if we can do it by using carbon in the atmosphere — the fossil fuel era would come to an end. We would no longer need to go to the trouble to drill deep, deep holes to pump up the muck that we convert to gas.
FC offers a nice profile of one of the latest experiments to use genetically modified microbes to generate liquid fuel from the sun. This works, though not yet in a cost effective way. Good story. And it is a brief snippet of one the great learning adventures of our time.
FOLLOW - This is not the only great learning adventure about “fuels”. We are only now just beginning to understand what fuels ourselves. I don’t mean the physical foods that we need for fuel (though we are learning a lot about that too). I am talking about what fuels our our motivation in groups to learn. This process is still a bit mysterious. But we know more now than we ever have. But we just haven’t yet converted this into the right kinds of platforms that would be more efficient than the stuff we use now. Hence we tolerate very inefficient institutions. Will this change over the next century. I believe that it will.