What will sustain out power hungry future? Solar? Wind? Geo-thermal? The life giving electricity is becoming a nuisance in the battle for cheap energy, and we are loosing.

What happens when the oil runs out? This is the question that many are, or will definitely be asking soon. We are just so dependant on the stuff, we use it for out electricity, to fuel our cars, to lube out engines and to even make our take-away Mc Donalds soft drink lids.
Oil is running out, and at an alarming rate. we have already passed the peak of our oil extraction capabilities (essentially we have used half of it up).

Such an event will (and already is) cause(ing) increased oil prices, which will escalate exponentially over the next few decades. That's right folks, your soda will cost 200% more because of that plastic lid, better hang on to it.
But really, if you look in one room of your house you will see that there is so much that uses oil at some time or another. Plastics, nylons, paint, varnish, metals, lubricants, gas bottles for the barbaque, pretty much everything synthetic in fact is made using oils. Once the supply goes away, all those things will be more expensive to make, or they just couldnt be made at all, or at least they couldnt be able to be shipped to the destination, be it your house or the store.

So what do we do? Of course that obvious answer is to build some renewable energy sources. Solar Panels, Dams, Wind turbines, geo-thermal plants and fusion sound like the promises of the future of our oil crisis.
There is some problems though, firstly it takes oil to create all of them somewhere down the line:

Solar panels need to be assembled, and need plastics also. They are however the most inefficient of any renewable energy source, absorbing only 18% of all energy that hits the panel. They also require the sun, which isn't the most reliable thing to power the world with.

Dams? I personally hate the things, they destroy the ecosystems that lives around the river. They are also the biggest and most costly (oil wise) to build, and they require copious amounts of Texas gold to be built. (those cement trucks cant drive on just good will.)

Wind you might say then... Wind is also very un reliable, they can only produce their maximum efficiency if the wind is just at the right speed. Too slow and the thing wont turn. Too fast and the thing could be damaged. Maybe Old farmer Bob's house could use one, but not the entire world. it would take literally a field of wind turbines along the entire coast of the UK just to power England.

Geo-Thermal? What on earth is that you might say. Well its simple, Geo Thermal just means Hot(thermal) Rock(geo-) so essentially it means using the heat of the earth to produce power. this can be done in 2 ways: First there is the obvious way, to use a volcano. By far the most efficient way of producing clean energy there is. the only problem that it can only be done near a volcano (or fissure), which aren't exactly in large supply. However those living near one, Iceland for example, can reap all the benefits it can. All it needs to is a hole and a pipe, with a turbine on top.
I said 2 ways right? I sure did, the second is possibly the most unheard of and is simply called "Hot Rock". Also known as green nuclear, it uses the natural nuclear decay in some kinds of rocks to heat water, pretty much in the same way as the latter.. all it requires is some green ( ;) ) rock and some holes in the ground and your set. just Plonk a turbine on top and let the awesome nuclear reactor of the Earth do the rest. Massively efficient, but like the volcano method, requires the correct conditions to work, which are in large amounts in certain countries, but hardly enough to have some global benefit. Ironically it is in fact the Oil companies that have to drill the holes for them to work, seeing as no one else has the equipment.

So, you say, Fusion? Well, too bad because it doesn't exist yet. not for another 50 or so years either. However when it does, it would be a trillion times more efficient than fossil fuels and a billion times more efficient than fission. however, apart from not existing it has another draw back. Over time it will cause the building it is stationed in to become radio active, creating a big useless pile of radio active waste. Not to mension the danger too, to make this thing work, it needs to heat the chamber to 15 million degrees Centigrade, the same heat as the Sun's core which is not exacly easy to contain. If it were to blow, it would take the entire facility with it.