Fuel Prices
I would just like to post this for people to think about...-Fuel, specifically hydrocarbon rich "fossil fuels", is a scarce commodity. "Scarce" meaning, not something that is laying around for the taking. We need to invest lots of money to find it, drill it, refine it, ship it, etc etc. -"Energy" comes in many forms, but I a going to break it into 3 categories that encompass all energy avaliable for us to use1. energy created now. solar, wind, tidal energy, etc. It's there, whether or not we collect it is up to us. Note that, growing a plant and processing it is energy created now2. energy created a while ago. any chemical compounds that we can simply "dig up" and burn for energy. natural gas, diesel, oil, etc etc.3. energy created a LONG time ago. fusion, fission.We don't have much control over how much #1 there is, simply how much of it we wish to collect, and what we do with it. As it is directly proportional to collection area, you need a lot of equipment to get a lot of energy, and that means a lot of money.Meanwhile, the #2 energy sources are already condensed by nature. There are in limited supply (with no intention to start any debate over the size of that supply) , but there is no question that once enough oil is removed, the well runs dry.(I will ignore #3, it is there for completion)A single gallon of gasoline has about 125 million joules, or about 35 kilowatt hours, of energy in it. (Your 1000 watt solar panel (VERY LARGE) needs 35 hours of 100% output to match that)You would need about 25 one lb loaves of bread, to match that**carbohydrates are 4 kcal / gram. bread is roughly 2/3 usable carbohydrate. 450 g per lb. (2/3) * 4 * 450 = 1200 kcal (4184 joules / kcal) = 5 million joules = 1/25th of gasoline**now, I ask you. Which is scarcer.. bread or fossil fuels. Which requires more energy to process before you buy it?Which is in limited supply?Which is more convenient to make a boat/train/generator run off of?...which costs more?If you ask me, we are blessed that fossil fuels are only $4 a gallon. You can hardly ride your bike ten miles on $1 worth of foodYou car (non hybrid honda civic) can move 3 people and a 2500 lb piece of steel comfortably 10 miles on $1 worth of gas today, at $4 per gallon. and that's only burning that gas at 30% efficiency!!